perf: avoid LINQ chains in TestDependency equality and MethodDataSourceAttribute method matching#6092
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Replace Select/SequenceEqual iterator allocations with manual loops in TestDependency.Matches and MethodDataSourceAttribute method resolution. Both are hot paths (dependency graph build, per-candidate data source resolution). Behavior is preserved, including null-argument matching semantics. Closes #6061
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Code Review
The PR is a targeted performance improvement that replaces LINQ iterator allocations in two hot paths with manual loops. The changes are small, focused, and the allocation savings are real. Overall the approach is sound, but there are two issues worth examining.
Issue 1 (Correctness) — ParameterTypesMatchArguments uses exact-type comparison, not assignability
File: TUnit.Core/Attributes/TestData/MethodDataSourceAttribute.cs, line 339
if (parameters[i].ParameterType != arguments[i]?.GetType())This exactly preserves the old SequenceEqual behaviour, and the PR description says that is intentional. However, the old behaviour itself has a correctness gap: if a user passes a ConcreteValue argument but the matching method's parameter is typed BaseClass or IInterface, the match fails even though the call would succeed at runtime.
Consider:
// Data-source method signature
public static IEnumerable<int> GetData(IList<string> items) { ... }
// Attribute usage
[MethodDataSource(nameof(GetData), Arguments = [new List<string>()])]arguments[0].GetType() → List<string>, parameters[0].ParameterType → IList<string> → no match, so the code falls through to targetType.GetMethod(MethodNameProvidingDataSource, BindingFlags) which does a name-only lookup, which may resolve a different overload or throw.
The existing GenericTypeResolver already uses parameterType.IsAssignableFrom(argumentType) (line 215 of GenericTypeResolver.cs), which is the correct check here too.
Suggested fix:
private static bool ParameterTypesMatchArguments(ParameterInfo[] parameters, object?[] arguments)
{
if (parameters.Length != arguments.Length)
return false;
for (var i = 0; i < parameters.Length; i++)
{
var argType = arguments[i]?.GetType();
if (argType is null || !parameters[i].ParameterType.IsAssignableFrom(argType))
return false;
}
return true;
}This also makes null handling explicit: a null argument has no runtime type, so it is treated as non-matching (same observable semantics as before, but the intent is clearer). If nullable reference parameters should be allowed to match null arguments, that can be handled separately in a follow-up.
Issue 2 (Minor correctness) — ParameterTypesMatchArguments is not called when Arguments is empty
When Arguments is empty ([], the default), ParameterTypesMatchArguments correctly returns true for a zero-parameter method. But the fallback targetType.GetMethod(MethodNameProvidingDataSource, BindingFlags) is only reached when the SingleOrDefault returns null — which now happens for both "no overload matched" and "overload matched but something upstream prevented it". This was the same before the PR, so not a regression, just noting that the two-stage resolution logic has a subtle ordering concern that isn't affected by this change.
What the PR does well
- The
TestDependency.cschange is straightforward: a length-check plus an indexed loop overTypereferences.Typeequality (!=) is correct here because these areSystem.Typeinstances, which are canonical per runtime, so reference equality is fine and is actually what the oldSequenceEqualused. - Splitting the length check out of the combined
||condition inTestDependency.cs(line 145–148 before the PR) makes the short-circuit more obvious and doesn't change semantics. - The helper method name (
ParameterTypesMatchArguments) and comment are clear. - AOT-safety and dual-mode compatibility are both preserved (no new reflection patterns, no changes to source-generator output).
Summary
The allocation-free loops are a clear improvement. The main thing to address before merging is the exact-type vs assignable-type comparison in ParameterTypesMatchArguments — using IsAssignableFrom would make the helper correct for derived-type and interface arguments rather than only for exact-type matches.
Up to standards ✅🟢 Issues
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…urce Exact-type comparison missed derived-type/interface arguments (e.g. List<string> arg vs IList<string> param). IsAssignableFrom mirrors what the call accepts.
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Code Review
Summary
Good allocation-free optimization for two hot paths. The changes are clean and well-documented. One behavioral concern in MethodDataSourceAttribute worth considering before merge.
TUnit.Core/TestDependency.cs ✅
Clean and correct. The manual length-check + indexed loop is a straightforward drop-in replacement for Select(...).SequenceEqual(). No behavioral change, no concerns.
TUnit.Core/Attributes/TestData/MethodDataSourceAttribute.cs — concern
The switch from exact-type equality to IsAssignableFrom can cause SingleOrDefault to throw InvalidOperationException with overloaded data-source methods.
Example:
// Two overloads on the data-source type:
public static IEnumerable<string> GetData(object arg) { ... }
public static IEnumerable<string> GetData(string arg) { ... }With Arguments = ["hello"]:
- Old behavior: only
GetData(string)matched (exact type equality).SingleOrDefault→ one result. - New behavior:
string.IsAssignableFrom(string)andobject.IsAssignableFrom(string)both returntrue.SingleOrDefault→ throwsInvalidOperationException.
The PR description notes that SingleOrDefault's duplicate-match semantics are preserved, but the semantics of what constitutes a match have widened significantly, making duplicate-match errors reachable in previously-fine configurations.
Suggested alternative: Use Type.GetMethod(name, BindingFlags, Type[]) for the typed-argument case. This delegates overload resolution to the runtime's binder (which applies C#'s own rules, including assignability and specificity ranking), and replaces both the exact-match and IsAssignableFrom paths in a single call:
// Build the type array only for non-null arguments (null still needs the fallback)
var argTypes = Arguments.Select(a => a?.GetType()).ToArray();
MethodInfo? methodInfo = null;
if (argTypes.All(t => t is not null))
{
methodInfo = targetType.GetMethod(MethodNameProvidingDataSource, BindingFlags, argTypes!);
}
methodInfo ??= targetType.GetMethods(BindingFlags).SingleOrDefault(x =>
x.Name == MethodNameProvidingDataSource && ParameterTypesMatchArguments(x.GetParameters(), Arguments))
?? targetType.GetMethod(MethodNameProvidingDataSource, BindingFlags);This avoids the IsAssignableFrom ambiguity risk while still fixing the derived-type matching bug. For the null-argument fallback, your existing ParameterTypesMatchArguments + name-only GetMethod approach is fine.
If the overload ambiguity scenario is considered unlikely enough in practice (data-source methods are user-controlled), the current implementation is still a net improvement over the original exact-type equality, since it fixes the derived-type/interface bug. But it's worth a conscious decision either way.
Null-argument handling
The comment correctly documents that null arguments never match (matching pre-existing behavior). The Arguments = [] default prevents null-reference issues on the array itself. No concerns here.
The IsAssignableFrom scan widened matching so competing overloads (e.g. GetData(object) and GetData(string) with Arguments=["hello"]) both matched, making SingleOrDefault throw InvalidOperationException. Delegate to Type.GetMethod(name, flags, binder, Type[], modifiers) when all arguments are non-null: the default binder applies normal overload resolution (most-specific wins) while still honouring derived-type/interface widening (List<string> arg -> IList<string> param), preserving this PR's bug-fix. Null arguments have no runtime type, so fall back to the name-only lookup.
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Code Review — Update (commit ff637f1)
Previous review items addressed: the switch from IsAssignableFrom scanning to Type.GetMethod with the runtime binder was the right call. The binder applies C#'s own overload-resolution rules (most-specific wins), which both fixes the derived-type/interface matching gap and eliminates the SingleOrDefault ambiguity risk. TestDependency.cs remains clean and correct. Good evolution.
One remaining issue — zero-argument case is a silent regression
When Arguments.Length == 0, ResolveDataSourceMethod returns null and the caller falls back to:
targetType.GetMethod(MethodNameProvidingDataSource, BindingFlags)This is a name-only lookup. GetMethod returns null (rather than throwing) when the name is ambiguous — i.e., when the data-source type has any overloaded methods with that name. That means a user who has:
public static IEnumerable<int> GetData() { ... } // target
public static IEnumerable<int> GetData(string tag) { ... } // other overloadand uses [MethodDataSource(nameof(GetData))] (zero arguments) will silently get null back, and execution falls through to property/field lookup, where it also fails. The original SingleOrDefault correctly found the zero-parameter overload in this case.
The fix is a single line — use Type.EmptyTypes so the same binder path handles it:
if (arguments.Length == 0)
{
return targetType.GetMethod(MethodNameProvidingDataSource, BindingFlags, binder: null, Type.EmptyTypes, modifiers: null);
}This is consistent with the non-zero path and correctly picks the parameterless overload even when other overloads exist. Dropping the early return entirely and letting the loop produce an empty argumentTypes array would achieve the same result with even less special-casing.
Everything else looks good
- Runtime binder delegation for non-null arguments handles both exact-type and derived-type cases without ambiguity risk — better than both previous approaches.
- Null-argument fallback semantics are preserved and the comments explain the "why" clearly.
- AOT annotation (
[DynamicallyAccessedMembers]) and the suppression message are correct and justified. TestDependency.csindexed loop with early-return length check is allocation-free and semantically identical to the original.
Just the zero-arg edge case needs the one-line fix before this is safe to merge.
GetMethod(name, flags) returns null (not throws) when the name is ambiguous, so a parameterless data-source method coexisting with other overloads silently resolved to null. Route the zero-argument case through the same binder GetMethod(name, flags, binder, Type[], modifiers) path: the empty Type[] selects the parameterless overload even when other-arity overloads share the name. Null-argument fallback unchanged.
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Code Review — Final Update (commit 5e771c5)
All three issues raised across the previous review rounds have been resolved:
- Exact-type equality gap → fixed (commit
3694516a): switched toIsAssignableFromso derived-type and interface arguments match correctly. IsAssignableFrom+SingleOrDefaultambiguity risk → fixed (commitff637f12): replaced the scan with runtime-binderType.GetMethod(name, flags, binder, types, modifiers), which applies C#'s own overload-resolution rules (most-specific wins) and surfaces genuine ambiguity asAmbiguousMatchExceptionrather than silently picking the wrong overload.- Zero-argument silent regression → fixed (commit
5e771c5d): instead of returningnullearly, the loop over an emptyArgumentsarray simply doesn't execute, leavingargumentTypesas an emptyType[](equivalent toType.EmptyTypes). The same binder path then selects the parameterless overload correctly — even when other-arity overloads share the name.
The final implementation is clean and correct:
ResolveDataSourceMethodhandles all three cases (zero args, typed args, null args) through a single code path with a single early exit.- The binder approach is strictly better than the original
SingleOrDefaultscan for both correctness (derived types, interfaces, specificity ranking) and error quality (explicitAmbiguousMatchExceptionvs runtime explosion later). TestDependency.csindexed loop with early-return length check is allocation-free and semantically identical to the original. No concerns.- AOT annotations (
[DynamicallyAccessedMembers],[UnconditionalSuppressMessage]) are correctly applied and the suppression justification is accurate. - No snapshot impact, no public API changes, dual-mode compatible.
This is ready to merge. Good iterative improvement.
Updated [TUnit](https://github.com/thomhurst/TUnit) from 1.45.29 to 1.48.6. <details> <summary>Release notes</summary> _Sourced from [TUnit's releases](https://github.com/thomhurst/TUnit/releases)._ ## 1.48.6 <!-- Release notes generated using configuration in .github/release.yml at v1.48.6 --> ## What's Changed ### Other Changes * fix(sourcegen): fully-qualify Linq calls in params array binding (#6140) by @thomhurst in thomhurst/TUnit#6141 ### Dependencies * chore(deps): update tunit to 1.48.0 by @thomhurst in thomhurst/TUnit#6135 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6137 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6138 * chore(deps): update verify to 31.19.0 by @thomhurst in thomhurst/TUnit#6139 **Full Changelog**: thomhurst/TUnit@v1.48.0...v1.48.6 ## 1.48.0 <!-- Release notes generated using configuration in .github/release.yml at v1.48.0 --> ## What's Changed ### Other Changes * feat(html-report): baked-in C# syntax highlighting on Source tab by @slang25 in thomhurst/TUnit#6132 * feat(analyzers): suppress VSTHRD200 on test and hook methods by @thomhurst in thomhurst/TUnit#6123 * fix(source-gen): correct source location for cross-project inherited tests by @slang25 in thomhurst/TUnit#6133 * feat(assertions): add WasCalled to tunit mocks assertions by @robertcoltheart in thomhurst/TUnit#6126 * feat(arguments): bind array values to a single array test parameter by @thomhurst in thomhurst/TUnit#6122 * fix: populate retry/flaky attempt history in HTML report (#6119) by @thomhurst in thomhurst/TUnit#6124 ### Dependencies * chore(deps): update tunit to 1.47.0 by @thomhurst in thomhurst/TUnit#6115 * chore(deps): update dependency microsoft.visualstudio.threading.analyzers to 17.14.15 by @thomhurst in thomhurst/TUnit#6134 **Full Changelog**: thomhurst/TUnit@v1.47.0...v1.48.0 ## 1.47.0 <!-- Release notes generated using configuration in .github/release.yml at v1.47.0 --> ## What's Changed ### Other Changes * perf(engine): hoist GetParameters and dict-dedup AfterTestDiscovery hooks by @thomhurst in thomhurst/TUnit#6062 * perf(engine): hoist GetParameters and drop LINQ in reflection discovery by @thomhurst in thomhurst/TUnit#6063 * perf(engine): cache treenode filter path on TestMetadata by @thomhurst in thomhurst/TUnit#6064 * perf: use is T pattern in ReflectionExtensions.HasAttribute fallback (#6060) by @thomhurst in thomhurst/TUnit#6066 * perf: replace OrderBy().ToArray() with Array.Sort in ConstraintKeyScheduler by @thomhurst in thomhurst/TUnit#6067 * perf: pool HashSet in WaitingTestIndex.GetCandidatesForReleasedKeys by @thomhurst in thomhurst/TUnit#6069 * perf: collapse OfType chains in JUnitXmlWriter (#6052) by @thomhurst in thomhurst/TUnit#6070 * perf(engine): avoid closure allocation in AfterHookPairTracker.GetOrCreateAfterAssemblyTask (#6041) by @thomhurst in thomhurst/TUnit#6071 * perf: avoid closure allocation in BeforeHookTaskCache.GetOrCreateBeforeAssemblyTask (#6040) by @thomhurst in thomhurst/TUnit#6073 * perf: use TryAdd in TestDependencyResolver dependency dedupe by @thomhurst in thomhurst/TUnit#6068 * perf: replace LINQ Any with foreach in TestGenericTypeResolver (#6044) by @thomhurst in thomhurst/TUnit#6072 * perf: avoid Cast<object>().FirstOrDefault() iterator alloc in CastHelper (#6029) by @thomhurst in thomhurst/TUnit#6074 * perf(engine): avoid string round-trip when building nested type names (#6049) by @thomhurst in thomhurst/TUnit#6075 * perf(engine): replace Select+ToArray with manual Type[] build (#6043) by @thomhurst in thomhurst/TUnit#6076 * perf(core): replace OfType().FirstOrDefault()/.Any() with foreach in ClassConstructorHelper by @thomhurst in thomhurst/TUnit#6078 * perf(engine): avoid FirstOrDefault iterator alloc in TestGenericTypeResolver by @thomhurst in thomhurst/TUnit#6079 * perf(engine): use SearchValues<char> for reporter filename sanitization by @thomhurst in thomhurst/TUnit#6090 * perf: dedupe TestDataFormatter.FormatArguments with pooled StringBuilder by @thomhurst in thomhurst/TUnit#6088 * perf(engine): use MemoryExtensions.Split for path parsing in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6085 * perf(engine): use CollectionsMarshal.GetValueRefOrAddDefault for dictionary index builds by @thomhurst in thomhurst/TUnit#6086 * perf(engine): replace LINQ Where closure with inline filter in MetadataDependencyExpander BFS by @thomhurst in thomhurst/TUnit#6084 * perf(engine): pool StringBuilder in DisplayNameBuilder.FormatArguments by @thomhurst in thomhurst/TUnit#6082 * Preserve specialized chaining after null assertions by @thomhurst in thomhurst/TUnit#6008 * perf: use EnumerateLines for line splitting in HtmlReportGenerator by @thomhurst in thomhurst/TUnit#6089 * perf: collapse Replace chain in TestNameFormatter.BuildTestId by @thomhurst in thomhurst/TUnit#6083 * perf: use OrdinalIgnoreCase Contains in HtmlReportGenerator span mapping by @thomhurst in thomhurst/TUnit#6093 * perf(assertions): avoid eager interpolated-string alloc in assertion source ctors by @thomhurst in thomhurst/TUnit#6091 * perf: optimize TestNameFormatter argument and bool formatting by @thomhurst in thomhurst/TUnit#6095 * perf: use FrozenSet/FrozenDictionary for read-only static lookups by @thomhurst in thomhurst/TUnit#6099 * perf: avoid GetCustomAttributes() + LINQ chain for per-property attribute scans by @thomhurst in thomhurst/TUnit#6098 * perf(engine): replace magic-string RequiredAttribute match with type check in ConstructorHelper by @thomhurst in thomhurst/TUnit#6087 * perf(core): replace Select+Func factory chain in DataSourceHelpers by @thomhurst in thomhurst/TUnit#6081 * perf: replace LINQ dependency extraction with manual loop by @thomhurst in thomhurst/TUnit#6096 * perf(core): avoid string[] alloc in ArgumentFormatter.FormatArguments by @thomhurst in thomhurst/TUnit#6080 * perf: use [GeneratedRegex] in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6094 * perf: dedupe GetSimpleTypeName into shared TypeNameFormatter by @thomhurst in thomhurst/TUnit#6097 * fix: remove GitVersion MSBuild task, pin local builds to 99.99.99 (#6077) by @thomhurst in thomhurst/TUnit#6101 * HTML Report: source link + code snippet on Source tab (#5993) by @thomhurst in thomhurst/TUnit#6100 * perf(sourcegen): Single-pass attribute classification by @thomhurst in thomhurst/TUnit#6111 * perf(core): eliminate per-test allocations in TestDetails/HookMethod by @thomhurst in thomhurst/TUnit#6109 * perf: hoist char[] alloc in FsCheckPropertyTestExecutor to static SearchValues by @thomhurst in thomhurst/TUnit#6108 * perf(core): de-LINQ data-source expansion by @thomhurst in thomhurst/TUnit#6110 * perf: avoid LINQ chains in TestDependency equality and MethodDataSourceAttribute method matching by @thomhurst in thomhurst/TUnit#6092 * perf(engine): reduce allocations in reflection-mode discovery/execution by @thomhurst in thomhurst/TUnit#6113 * perf(assertions): allocation-free passing path (TUnit.Assertions) by @thomhurst in thomhurst/TUnit#6112 ### Dependencies ... (truncated) ## 1.46.0 <!-- Release notes generated using configuration in .github/release.yml at v1.46.0 --> ## What's Changed ### Other Changes * docs: add Rider VSTest conflict troubleshooting by @smolchanovsky in thomhurst/TUnit#5989 * Populate generated test metadata with full source spans by @Copilot in thomhurst/TUnit#5991 * Add devcontainer configuration by @Copilot in thomhurst/TUnit#5995 * fix: treenode filter pre-filter rejects parenthesised segments (#6026) by @thomhurst in thomhurst/TUnit#6027 * fix(engine): isolate per-session state under MTP server-mode concurrency (#6001) by @thomhurst in thomhurst/TUnit#6025 ### Dependencies * chore(deps): update dependency stackexchange.redis to 2.13.10 by @thomhurst in thomhurst/TUnit#5985 * chore(deps): update tunit to 1.45.29 by @thomhurst in thomhurst/TUnit#5986 * chore(deps): update dependency mockolate to 3.2.1 by @thomhurst in thomhurst/TUnit#5987 * chore(deps): update dependency microsoft.playwright to 1.60.0 by @thomhurst in thomhurst/TUnit#5988 * chore(deps): update dependency messagepack to 3.1.6 by @thomhurst in thomhurst/TUnit#5992 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5998 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5997 * chore(deps): update verify to 31.17.0 by @thomhurst in thomhurst/TUnit#6000 * chore(deps): update verify to 31.18.0 by @thomhurst in thomhurst/TUnit#6013 * chore(deps): update dependency microsoft.net.test.sdk to 18.6.0 by @thomhurst in thomhurst/TUnit#6016 * chore(deps): update dependency dompurify to v3.4.6 by @thomhurst in thomhurst/TUnit#6015 * chore(deps): update dependency dompurify to v3.4.7 by @thomhurst in thomhurst/TUnit#6019 * chore(deps): update dependency npgsql to 10.0.3 by @thomhurst in thomhurst/TUnit#6020 * chore(deps): update dependency stackexchange.redis to 2.13.17 by @thomhurst in thomhurst/TUnit#6021 * chore(deps): update dependency npgsql.entityframeworkcore.postgresql to 10.0.2 by @thomhurst in thomhurst/TUnit#6022 ## New Contributors * @smolchanovsky made their first contribution in thomhurst/TUnit#5989 **Full Changelog**: thomhurst/TUnit@v1.45.29...v1.46.0 Commits viewable in [compare view](thomhurst/TUnit@v1.45.29...v1.48.6). </details> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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Updated [Microsoft.Testing.Extensions.CodeCoverage](https://github.com/microsoft/codecoverage) from 18.6.2 to 18.7.0. <details> <summary>Release notes</summary> _Sourced from [Microsoft.Testing.Extensions.CodeCoverage's releases](https://github.com/microsoft/codecoverage/releases)._ No release notes found for this version range. Commits viewable in [compare view](https://github.com/microsoft/codecoverage/commits). </details> Updated [TUnit](https://github.com/thomhurst/TUnit) from 1.44.39 to 1.48.6. <details> <summary>Release notes</summary> _Sourced from [TUnit's releases](https://github.com/thomhurst/TUnit/releases)._ ## 1.48.6 <!-- Release notes generated using configuration in .github/release.yml at v1.48.6 --> ## What's Changed ### Other Changes * fix(sourcegen): fully-qualify Linq calls in params array binding (#6140) by @thomhurst in thomhurst/TUnit#6141 ### Dependencies * chore(deps): update tunit to 1.48.0 by @thomhurst in thomhurst/TUnit#6135 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6137 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6138 * chore(deps): update verify to 31.19.0 by @thomhurst in thomhurst/TUnit#6139 **Full Changelog**: thomhurst/TUnit@v1.48.0...v1.48.6 ## 1.48.0 <!-- Release notes generated using configuration in .github/release.yml at v1.48.0 --> ## What's Changed ### Other Changes * feat(html-report): baked-in C# syntax highlighting on Source tab by @slang25 in thomhurst/TUnit#6132 * feat(analyzers): suppress VSTHRD200 on test and hook methods by @thomhurst in thomhurst/TUnit#6123 * fix(source-gen): correct source location for cross-project inherited tests by @slang25 in thomhurst/TUnit#6133 * feat(assertions): add WasCalled to tunit mocks assertions by @robertcoltheart in thomhurst/TUnit#6126 * feat(arguments): bind array values to a single array test parameter by @thomhurst in thomhurst/TUnit#6122 * fix: populate retry/flaky attempt history in HTML report (#6119) by @thomhurst in thomhurst/TUnit#6124 ### Dependencies * chore(deps): update tunit to 1.47.0 by @thomhurst in thomhurst/TUnit#6115 * chore(deps): update dependency microsoft.visualstudio.threading.analyzers to 17.14.15 by @thomhurst in thomhurst/TUnit#6134 **Full Changelog**: thomhurst/TUnit@v1.47.0...v1.48.0 ## 1.47.0 <!-- Release notes generated using configuration in .github/release.yml at v1.47.0 --> ## What's Changed ### Other Changes * perf(engine): hoist GetParameters and dict-dedup AfterTestDiscovery hooks by @thomhurst in thomhurst/TUnit#6062 * perf(engine): hoist GetParameters and drop LINQ in reflection discovery by @thomhurst in thomhurst/TUnit#6063 * perf(engine): cache treenode filter path on TestMetadata by @thomhurst in thomhurst/TUnit#6064 * perf: use is T pattern in ReflectionExtensions.HasAttribute fallback (#6060) by @thomhurst in thomhurst/TUnit#6066 * perf: replace OrderBy().ToArray() with Array.Sort in ConstraintKeyScheduler by @thomhurst in thomhurst/TUnit#6067 * perf: pool HashSet in WaitingTestIndex.GetCandidatesForReleasedKeys by @thomhurst in thomhurst/TUnit#6069 * perf: collapse OfType chains in JUnitXmlWriter (#6052) by @thomhurst in thomhurst/TUnit#6070 * perf(engine): avoid closure allocation in AfterHookPairTracker.GetOrCreateAfterAssemblyTask (#6041) by @thomhurst in thomhurst/TUnit#6071 * perf: avoid closure allocation in BeforeHookTaskCache.GetOrCreateBeforeAssemblyTask (#6040) by @thomhurst in thomhurst/TUnit#6073 * perf: use TryAdd in TestDependencyResolver dependency dedupe by @thomhurst in thomhurst/TUnit#6068 * perf: replace LINQ Any with foreach in TestGenericTypeResolver (#6044) by @thomhurst in thomhurst/TUnit#6072 * perf: avoid Cast<object>().FirstOrDefault() iterator alloc in CastHelper (#6029) by @thomhurst in thomhurst/TUnit#6074 * perf(engine): avoid string round-trip when building nested type names (#6049) by @thomhurst in thomhurst/TUnit#6075 * perf(engine): replace Select+ToArray with manual Type[] build (#6043) by @thomhurst in thomhurst/TUnit#6076 * perf(core): replace OfType().FirstOrDefault()/.Any() with foreach in ClassConstructorHelper by @thomhurst in thomhurst/TUnit#6078 * perf(engine): avoid FirstOrDefault iterator alloc in TestGenericTypeResolver by @thomhurst in thomhurst/TUnit#6079 * perf(engine): use SearchValues<char> for reporter filename sanitization by @thomhurst in thomhurst/TUnit#6090 * perf: dedupe TestDataFormatter.FormatArguments with pooled StringBuilder by @thomhurst in thomhurst/TUnit#6088 * perf(engine): use MemoryExtensions.Split for path parsing in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6085 * perf(engine): use CollectionsMarshal.GetValueRefOrAddDefault for dictionary index builds by @thomhurst in thomhurst/TUnit#6086 * perf(engine): replace LINQ Where closure with inline filter in MetadataDependencyExpander BFS by @thomhurst in thomhurst/TUnit#6084 * perf(engine): pool StringBuilder in DisplayNameBuilder.FormatArguments by @thomhurst in thomhurst/TUnit#6082 * Preserve specialized chaining after null assertions by @thomhurst in thomhurst/TUnit#6008 * perf: use EnumerateLines for line splitting in HtmlReportGenerator by @thomhurst in thomhurst/TUnit#6089 * perf: collapse Replace chain in TestNameFormatter.BuildTestId by @thomhurst in thomhurst/TUnit#6083 * perf: use OrdinalIgnoreCase Contains in HtmlReportGenerator span mapping by @thomhurst in thomhurst/TUnit#6093 * perf(assertions): avoid eager interpolated-string alloc in assertion source ctors by @thomhurst in thomhurst/TUnit#6091 * perf: optimize TestNameFormatter argument and bool formatting by @thomhurst in thomhurst/TUnit#6095 * perf: use FrozenSet/FrozenDictionary for read-only static lookups by @thomhurst in thomhurst/TUnit#6099 * perf: avoid GetCustomAttributes() + LINQ chain for per-property attribute scans by @thomhurst in thomhurst/TUnit#6098 * perf(engine): replace magic-string RequiredAttribute match with type check in ConstructorHelper by @thomhurst in thomhurst/TUnit#6087 * perf(core): replace Select+Func factory chain in DataSourceHelpers by @thomhurst in thomhurst/TUnit#6081 * perf: replace LINQ dependency extraction with manual loop by @thomhurst in thomhurst/TUnit#6096 * perf(core): avoid string[] alloc in ArgumentFormatter.FormatArguments by @thomhurst in thomhurst/TUnit#6080 * perf: use [GeneratedRegex] in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6094 * perf: dedupe GetSimpleTypeName into shared TypeNameFormatter by @thomhurst in thomhurst/TUnit#6097 * fix: remove GitVersion MSBuild task, pin local builds to 99.99.99 (#6077) by @thomhurst in thomhurst/TUnit#6101 * HTML Report: source link + code snippet on Source tab (#5993) by @thomhurst in thomhurst/TUnit#6100 * perf(sourcegen): Single-pass attribute classification by @thomhurst in thomhurst/TUnit#6111 * perf(core): eliminate per-test allocations in TestDetails/HookMethod by @thomhurst in thomhurst/TUnit#6109 * perf: hoist char[] alloc in FsCheckPropertyTestExecutor to static SearchValues by @thomhurst in thomhurst/TUnit#6108 * perf(core): de-LINQ data-source expansion by @thomhurst in thomhurst/TUnit#6110 * perf: avoid LINQ chains in TestDependency equality and MethodDataSourceAttribute method matching by @thomhurst in thomhurst/TUnit#6092 * perf(engine): reduce allocations in reflection-mode discovery/execution by @thomhurst in thomhurst/TUnit#6113 * perf(assertions): allocation-free passing path (TUnit.Assertions) by @thomhurst in thomhurst/TUnit#6112 ### Dependencies ... (truncated) ## 1.46.0 <!-- Release notes generated using configuration in .github/release.yml at v1.46.0 --> ## What's Changed ### Other Changes * docs: add Rider VSTest conflict troubleshooting by @smolchanovsky in thomhurst/TUnit#5989 * Populate generated test metadata with full source spans by @Copilot in thomhurst/TUnit#5991 * Add devcontainer configuration by @Copilot in thomhurst/TUnit#5995 * fix: treenode filter pre-filter rejects parenthesised segments (#6026) by @thomhurst in thomhurst/TUnit#6027 * fix(engine): isolate per-session state under MTP server-mode concurrency (#6001) by @thomhurst in thomhurst/TUnit#6025 ### Dependencies * chore(deps): update dependency stackexchange.redis to 2.13.10 by @thomhurst in thomhurst/TUnit#5985 * chore(deps): update tunit to 1.45.29 by @thomhurst in thomhurst/TUnit#5986 * chore(deps): update dependency mockolate to 3.2.1 by @thomhurst in thomhurst/TUnit#5987 * chore(deps): update dependency microsoft.playwright to 1.60.0 by @thomhurst in thomhurst/TUnit#5988 * chore(deps): update dependency messagepack to 3.1.6 by @thomhurst in thomhurst/TUnit#5992 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5998 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5997 * chore(deps): update verify to 31.17.0 by @thomhurst in thomhurst/TUnit#6000 * chore(deps): update verify to 31.18.0 by @thomhurst in thomhurst/TUnit#6013 * chore(deps): update dependency microsoft.net.test.sdk to 18.6.0 by @thomhurst in thomhurst/TUnit#6016 * chore(deps): update dependency dompurify to v3.4.6 by @thomhurst in thomhurst/TUnit#6015 * chore(deps): update dependency dompurify to v3.4.7 by @thomhurst in thomhurst/TUnit#6019 * chore(deps): update dependency npgsql to 10.0.3 by @thomhurst in thomhurst/TUnit#6020 * chore(deps): update dependency stackexchange.redis to 2.13.17 by @thomhurst in thomhurst/TUnit#6021 * chore(deps): update dependency npgsql.entityframeworkcore.postgresql to 10.0.2 by @thomhurst in thomhurst/TUnit#6022 ## New Contributors * @smolchanovsky made their first contribution in thomhurst/TUnit#5989 **Full Changelog**: thomhurst/TUnit@v1.45.29...v1.46.0 ## 1.45.29 <!-- Release notes generated using configuration in .github/release.yml at v1.45.29 --> ## What's Changed ### Other Changes * Fix shared fixture lifetime for reused discovery instances by @thomhurst in thomhurst/TUnit#5983 * Preserve override accessibility in generated mocks by @thomhurst in thomhurst/TUnit#5984 ### Dependencies * chore(deps): update tunit to 1.45.22 by @thomhurst in thomhurst/TUnit#5974 * chore(deps): update dependency messagepack to 3.1.5 by @thomhurst in thomhurst/TUnit#5978 * chore(deps): update aspire to 13.3.5 by @thomhurst in thomhurst/TUnit#5980 **Full Changelog**: thomhurst/TUnit@v1.45.22...v1.45.29 ## 1.45.22 <!-- Release notes generated using configuration in .github/release.yml at v1.45.22 --> ## What's Changed ### Other Changes * Remove ".NET" from Aspire references by @antmdvs in thomhurst/TUnit#5968 * Fix chained mock setup behavior by @thomhurst in thomhurst/TUnit#5973 ### Dependencies * chore(deps): update tunit to 1.45.8 by @thomhurst in thomhurst/TUnit#5958 * chore(deps): update dependency nunit to 4.6.1 by @thomhurst in thomhurst/TUnit#5961 * chore(deps): update dependency testcontainers.postgresql to 4.12.0 by @thomhurst in thomhurst/TUnit#5963 * chore(deps): update dependency testcontainers.redis to 4.12.0 by @thomhurst in thomhurst/TUnit#5965 * chore(deps): update dependency testcontainers.kafka to 4.12.0 by @thomhurst in thomhurst/TUnit#5962 * chore(deps): update aspire to 13.3.4 by @thomhurst in thomhurst/TUnit#5966 * chore(deps): bump webpack-dev-server from 5.2.2 to 5.2.4 in /docs by @dependabot[bot] in thomhurst/TUnit#5964 ## New Contributors * @antmdvs made their first contribution in thomhurst/TUnit#5968 **Full Changelog**: thomhurst/TUnit@v1.45.8...v1.45.22 ## 1.45.8 <!-- Release notes generated using configuration in .github/release.yml at v1.45.8 --> ## What's Changed ### Other Changes * fix(aspire): route CreateHttpClient through IHttpClientFactory by @thomhurst in thomhurst/TUnit#5957 ### Dependencies * chore(deps): update tunit to 1.45.0 by @thomhurst in thomhurst/TUnit#5949 * chore(deps): update dependency dompurify to v3.4.5 by @thomhurst in thomhurst/TUnit#5951 * chore(deps): update dependency microsoft.testing.extensions.codecoverage to 18.7.0 by @thomhurst in thomhurst/TUnit#5953 * chore(deps): update dependency coverlet.collector to 10.0.1 by @thomhurst in thomhurst/TUnit#5952 * chore(deps): update dependency polyfill to 10.6.0 by @thomhurst in thomhurst/TUnit#5955 * chore(deps): update dependency polyfill to 10.6.0 by @thomhurst in thomhurst/TUnit#5954 **Full Changelog**: thomhurst/TUnit@v1.45.0...v1.45.8 ## 1.45.0 <!-- Release notes generated using configuration in .github/release.yml at v1.45.0 --> ## What's Changed ### Other Changes * fix(generator): place CallerArgumentExpression before params in [GenerateAssertion] emit by @JohnVerheij in thomhurst/TUnit#5940 * fix(sourcegen): drop covariant TActual when [GenerateAssertion] method has its own type parameters by @JohnVerheij in thomhurst/TUnit#5935 * feat(assertions): add CancellationToken overload to WaitsFor and Eventually by @JohnVerheij in thomhurst/TUnit#5938 * fix(html-report): extract categories using MTP Key=name convention by @thomhurst in thomhurst/TUnit#5946 * feat(html-report): rewrite as split-pane design template by @thomhurst in thomhurst/TUnit#5947 ### Dependencies * chore(deps): update microsoft.testing to 2.2.3 by @thomhurst in thomhurst/TUnit#5927 * chore(deps): update mstest to 4.2.3 by @thomhurst in thomhurst/TUnit#5928 * chore(deps): update tunit to 1.44.39 by @thomhurst in thomhurst/TUnit#5929 * chore(deps): update aspire to 13.3.3 by @thomhurst in thomhurst/TUnit#5933 * chore(deps): update dependency dompurify to v3.4.4 by @thomhurst in thomhurst/TUnit#5944 * chore(deps): update dependency qs to v6.15.2 by @thomhurst in thomhurst/TUnit#5941 **Full Changelog**: thomhurst/TUnit@v1.44.39...v1.45.0 Commits viewable in [compare view](thomhurst/TUnit@v1.44.39...v1.48.6). </details> Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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Updated [TUnit](https://github.com/thomhurst/TUnit) from 1.45.29 to 1.48.6. <details> <summary>Release notes</summary> _Sourced from [TUnit's releases](https://github.com/thomhurst/TUnit/releases)._ ## 1.48.6 <!-- Release notes generated using configuration in .github/release.yml at v1.48.6 --> ## What's Changed ### Other Changes * fix(sourcegen): fully-qualify Linq calls in params array binding (#6140) by @thomhurst in thomhurst/TUnit#6141 ### Dependencies * chore(deps): update tunit to 1.48.0 by @thomhurst in thomhurst/TUnit#6135 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6137 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6138 * chore(deps): update verify to 31.19.0 by @thomhurst in thomhurst/TUnit#6139 **Full Changelog**: thomhurst/TUnit@v1.48.0...v1.48.6 ## 1.48.0 <!-- Release notes generated using configuration in .github/release.yml at v1.48.0 --> ## What's Changed ### Other Changes * feat(html-report): baked-in C# syntax highlighting on Source tab by @slang25 in thomhurst/TUnit#6132 * feat(analyzers): suppress VSTHRD200 on test and hook methods by @thomhurst in thomhurst/TUnit#6123 * fix(source-gen): correct source location for cross-project inherited tests by @slang25 in thomhurst/TUnit#6133 * feat(assertions): add WasCalled to tunit mocks assertions by @robertcoltheart in thomhurst/TUnit#6126 * feat(arguments): bind array values to a single array test parameter by @thomhurst in thomhurst/TUnit#6122 * fix: populate retry/flaky attempt history in HTML report (#6119) by @thomhurst in thomhurst/TUnit#6124 ### Dependencies * chore(deps): update tunit to 1.47.0 by @thomhurst in thomhurst/TUnit#6115 * chore(deps): update dependency microsoft.visualstudio.threading.analyzers to 17.14.15 by @thomhurst in thomhurst/TUnit#6134 **Full Changelog**: thomhurst/TUnit@v1.47.0...v1.48.0 ## 1.47.0 <!-- Release notes generated using configuration in .github/release.yml at v1.47.0 --> ## What's Changed ### Other Changes * perf(engine): hoist GetParameters and dict-dedup AfterTestDiscovery hooks by @thomhurst in thomhurst/TUnit#6062 * perf(engine): hoist GetParameters and drop LINQ in reflection discovery by @thomhurst in thomhurst/TUnit#6063 * perf(engine): cache treenode filter path on TestMetadata by @thomhurst in thomhurst/TUnit#6064 * perf: use is T pattern in ReflectionExtensions.HasAttribute fallback (#6060) by @thomhurst in thomhurst/TUnit#6066 * perf: replace OrderBy().ToArray() with Array.Sort in ConstraintKeyScheduler by @thomhurst in thomhurst/TUnit#6067 * perf: pool HashSet in WaitingTestIndex.GetCandidatesForReleasedKeys by @thomhurst in thomhurst/TUnit#6069 * perf: collapse OfType chains in JUnitXmlWriter (#6052) by @thomhurst in thomhurst/TUnit#6070 * perf(engine): avoid closure allocation in AfterHookPairTracker.GetOrCreateAfterAssemblyTask (#6041) by @thomhurst in thomhurst/TUnit#6071 * perf: avoid closure allocation in BeforeHookTaskCache.GetOrCreateBeforeAssemblyTask (#6040) by @thomhurst in thomhurst/TUnit#6073 * perf: use TryAdd in TestDependencyResolver dependency dedupe by @thomhurst in thomhurst/TUnit#6068 * perf: replace LINQ Any with foreach in TestGenericTypeResolver (#6044) by @thomhurst in thomhurst/TUnit#6072 * perf: avoid Cast<object>().FirstOrDefault() iterator alloc in CastHelper (#6029) by @thomhurst in thomhurst/TUnit#6074 * perf(engine): avoid string round-trip when building nested type names (#6049) by @thomhurst in thomhurst/TUnit#6075 * perf(engine): replace Select+ToArray with manual Type[] build (#6043) by @thomhurst in thomhurst/TUnit#6076 * perf(core): replace OfType().FirstOrDefault()/.Any() with foreach in ClassConstructorHelper by @thomhurst in thomhurst/TUnit#6078 * perf(engine): avoid FirstOrDefault iterator alloc in TestGenericTypeResolver by @thomhurst in thomhurst/TUnit#6079 * perf(engine): use SearchValues<char> for reporter filename sanitization by @thomhurst in thomhurst/TUnit#6090 * perf: dedupe TestDataFormatter.FormatArguments with pooled StringBuilder by @thomhurst in thomhurst/TUnit#6088 * perf(engine): use MemoryExtensions.Split for path parsing in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6085 * perf(engine): use CollectionsMarshal.GetValueRefOrAddDefault for dictionary index builds by @thomhurst in thomhurst/TUnit#6086 * perf(engine): replace LINQ Where closure with inline filter in MetadataDependencyExpander BFS by @thomhurst in thomhurst/TUnit#6084 * perf(engine): pool StringBuilder in DisplayNameBuilder.FormatArguments by @thomhurst in thomhurst/TUnit#6082 * Preserve specialized chaining after null assertions by @thomhurst in thomhurst/TUnit#6008 * perf: use EnumerateLines for line splitting in HtmlReportGenerator by @thomhurst in thomhurst/TUnit#6089 * perf: collapse Replace chain in TestNameFormatter.BuildTestId by @thomhurst in thomhurst/TUnit#6083 * perf: use OrdinalIgnoreCase Contains in HtmlReportGenerator span mapping by @thomhurst in thomhurst/TUnit#6093 * perf(assertions): avoid eager interpolated-string alloc in assertion source ctors by @thomhurst in thomhurst/TUnit#6091 * perf: optimize TestNameFormatter argument and bool formatting by @thomhurst in thomhurst/TUnit#6095 * perf: use FrozenSet/FrozenDictionary for read-only static lookups by @thomhurst in thomhurst/TUnit#6099 * perf: avoid GetCustomAttributes() + LINQ chain for per-property attribute scans by @thomhurst in thomhurst/TUnit#6098 * perf(engine): replace magic-string RequiredAttribute match with type check in ConstructorHelper by @thomhurst in thomhurst/TUnit#6087 * perf(core): replace Select+Func factory chain in DataSourceHelpers by @thomhurst in thomhurst/TUnit#6081 * perf: replace LINQ dependency extraction with manual loop by @thomhurst in thomhurst/TUnit#6096 * perf(core): avoid string[] alloc in ArgumentFormatter.FormatArguments by @thomhurst in thomhurst/TUnit#6080 * perf: use [GeneratedRegex] in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6094 * perf: dedupe GetSimpleTypeName into shared TypeNameFormatter by @thomhurst in thomhurst/TUnit#6097 * fix: remove GitVersion MSBuild task, pin local builds to 99.99.99 (#6077) by @thomhurst in thomhurst/TUnit#6101 * HTML Report: source link + code snippet on Source tab (#5993) by @thomhurst in thomhurst/TUnit#6100 * perf(sourcegen): Single-pass attribute classification by @thomhurst in thomhurst/TUnit#6111 * perf(core): eliminate per-test allocations in TestDetails/HookMethod by @thomhurst in thomhurst/TUnit#6109 * perf: hoist char[] alloc in FsCheckPropertyTestExecutor to static SearchValues by @thomhurst in thomhurst/TUnit#6108 * perf(core): de-LINQ data-source expansion by @thomhurst in thomhurst/TUnit#6110 * perf: avoid LINQ chains in TestDependency equality and MethodDataSourceAttribute method matching by @thomhurst in thomhurst/TUnit#6092 * perf(engine): reduce allocations in reflection-mode discovery/execution by @thomhurst in thomhurst/TUnit#6113 * perf(assertions): allocation-free passing path (TUnit.Assertions) by @thomhurst in thomhurst/TUnit#6112 ### Dependencies ... (truncated) ## 1.46.0 <!-- Release notes generated using configuration in .github/release.yml at v1.46.0 --> ## What's Changed ### Other Changes * docs: add Rider VSTest conflict troubleshooting by @smolchanovsky in thomhurst/TUnit#5989 * Populate generated test metadata with full source spans by @Copilot in thomhurst/TUnit#5991 * Add devcontainer configuration by @Copilot in thomhurst/TUnit#5995 * fix: treenode filter pre-filter rejects parenthesised segments (#6026) by @thomhurst in thomhurst/TUnit#6027 * fix(engine): isolate per-session state under MTP server-mode concurrency (#6001) by @thomhurst in thomhurst/TUnit#6025 ### Dependencies * chore(deps): update dependency stackexchange.redis to 2.13.10 by @thomhurst in thomhurst/TUnit#5985 * chore(deps): update tunit to 1.45.29 by @thomhurst in thomhurst/TUnit#5986 * chore(deps): update dependency mockolate to 3.2.1 by @thomhurst in thomhurst/TUnit#5987 * chore(deps): update dependency microsoft.playwright to 1.60.0 by @thomhurst in thomhurst/TUnit#5988 * chore(deps): update dependency messagepack to 3.1.6 by @thomhurst in thomhurst/TUnit#5992 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5998 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5997 * chore(deps): update verify to 31.17.0 by @thomhurst in thomhurst/TUnit#6000 * chore(deps): update verify to 31.18.0 by @thomhurst in thomhurst/TUnit#6013 * chore(deps): update dependency microsoft.net.test.sdk to 18.6.0 by @thomhurst in thomhurst/TUnit#6016 * chore(deps): update dependency dompurify to v3.4.6 by @thomhurst in thomhurst/TUnit#6015 * chore(deps): update dependency dompurify to v3.4.7 by @thomhurst in thomhurst/TUnit#6019 * chore(deps): update dependency npgsql to 10.0.3 by @thomhurst in thomhurst/TUnit#6020 * chore(deps): update dependency stackexchange.redis to 2.13.17 by @thomhurst in thomhurst/TUnit#6021 * chore(deps): update dependency npgsql.entityframeworkcore.postgresql to 10.0.2 by @thomhurst in thomhurst/TUnit#6022 ## New Contributors * @smolchanovsky made their first contribution in thomhurst/TUnit#5989 **Full Changelog**: thomhurst/TUnit@v1.45.29...v1.46.0 Commits viewable in [compare view](thomhurst/TUnit@v1.45.29...v1.48.6). </details> Updated [TUnit.AspNetCore](https://github.com/thomhurst/TUnit) from 1.45.29 to 1.48.6. <details> <summary>Release notes</summary> _Sourced from [TUnit.AspNetCore's releases](https://github.com/thomhurst/TUnit/releases)._ ## 1.48.6 <!-- Release notes generated using configuration in .github/release.yml at v1.48.6 --> ## What's Changed ### Other Changes * fix(sourcegen): fully-qualify Linq calls in params array binding (#6140) by @thomhurst in thomhurst/TUnit#6141 ### Dependencies * chore(deps): update tunit to 1.48.0 by @thomhurst in thomhurst/TUnit#6135 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6137 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6138 * chore(deps): update verify to 31.19.0 by @thomhurst in thomhurst/TUnit#6139 **Full Changelog**: thomhurst/TUnit@v1.48.0...v1.48.6 ## 1.48.0 <!-- Release notes generated using configuration in .github/release.yml at v1.48.0 --> ## What's Changed ### Other Changes * feat(html-report): baked-in C# syntax highlighting on Source tab by @slang25 in thomhurst/TUnit#6132 * feat(analyzers): suppress VSTHRD200 on test and hook methods by @thomhurst in thomhurst/TUnit#6123 * fix(source-gen): correct source location for cross-project inherited tests by @slang25 in thomhurst/TUnit#6133 * feat(assertions): add WasCalled to tunit mocks assertions by @robertcoltheart in thomhurst/TUnit#6126 * feat(arguments): bind array values to a single array test parameter by @thomhurst in thomhurst/TUnit#6122 * fix: populate retry/flaky attempt history in HTML report (#6119) by @thomhurst in thomhurst/TUnit#6124 ### Dependencies * chore(deps): update tunit to 1.47.0 by @thomhurst in thomhurst/TUnit#6115 * chore(deps): update dependency microsoft.visualstudio.threading.analyzers to 17.14.15 by @thomhurst in thomhurst/TUnit#6134 **Full Changelog**: thomhurst/TUnit@v1.47.0...v1.48.0 ## 1.47.0 <!-- Release notes generated using configuration in .github/release.yml at v1.47.0 --> ## What's Changed ### Other Changes * perf(engine): hoist GetParameters and dict-dedup AfterTestDiscovery hooks by @thomhurst in thomhurst/TUnit#6062 * perf(engine): hoist GetParameters and drop LINQ in reflection discovery by @thomhurst in thomhurst/TUnit#6063 * perf(engine): cache treenode filter path on TestMetadata by @thomhurst in thomhurst/TUnit#6064 * perf: use is T pattern in ReflectionExtensions.HasAttribute fallback (#6060) by @thomhurst in thomhurst/TUnit#6066 * perf: replace OrderBy().ToArray() with Array.Sort in ConstraintKeyScheduler by @thomhurst in thomhurst/TUnit#6067 * perf: pool HashSet in WaitingTestIndex.GetCandidatesForReleasedKeys by @thomhurst in thomhurst/TUnit#6069 * perf: collapse OfType chains in JUnitXmlWriter (#6052) by @thomhurst in thomhurst/TUnit#6070 * perf(engine): avoid closure allocation in AfterHookPairTracker.GetOrCreateAfterAssemblyTask (#6041) by @thomhurst in thomhurst/TUnit#6071 * perf: avoid closure allocation in BeforeHookTaskCache.GetOrCreateBeforeAssemblyTask (#6040) by @thomhurst in thomhurst/TUnit#6073 * perf: use TryAdd in TestDependencyResolver dependency dedupe by @thomhurst in thomhurst/TUnit#6068 * perf: replace LINQ Any with foreach in TestGenericTypeResolver (#6044) by @thomhurst in thomhurst/TUnit#6072 * perf: avoid Cast<object>().FirstOrDefault() iterator alloc in CastHelper (#6029) by @thomhurst in thomhurst/TUnit#6074 * perf(engine): avoid string round-trip when building nested type names (#6049) by @thomhurst in thomhurst/TUnit#6075 * perf(engine): replace Select+ToArray with manual Type[] build (#6043) by @thomhurst in thomhurst/TUnit#6076 * perf(core): replace OfType().FirstOrDefault()/.Any() with foreach in ClassConstructorHelper by @thomhurst in thomhurst/TUnit#6078 * perf(engine): avoid FirstOrDefault iterator alloc in TestGenericTypeResolver by @thomhurst in thomhurst/TUnit#6079 * perf(engine): use SearchValues<char> for reporter filename sanitization by @thomhurst in thomhurst/TUnit#6090 * perf: dedupe TestDataFormatter.FormatArguments with pooled StringBuilder by @thomhurst in thomhurst/TUnit#6088 * perf(engine): use MemoryExtensions.Split for path parsing in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6085 * perf(engine): use CollectionsMarshal.GetValueRefOrAddDefault for dictionary index builds by @thomhurst in thomhurst/TUnit#6086 * perf(engine): replace LINQ Where closure with inline filter in MetadataDependencyExpander BFS by @thomhurst in thomhurst/TUnit#6084 * perf(engine): pool StringBuilder in DisplayNameBuilder.FormatArguments by @thomhurst in thomhurst/TUnit#6082 * Preserve specialized chaining after null assertions by @thomhurst in thomhurst/TUnit#6008 * perf: use EnumerateLines for line splitting in HtmlReportGenerator by @thomhurst in thomhurst/TUnit#6089 * perf: collapse Replace chain in TestNameFormatter.BuildTestId by @thomhurst in thomhurst/TUnit#6083 * perf: use OrdinalIgnoreCase Contains in HtmlReportGenerator span mapping by @thomhurst in thomhurst/TUnit#6093 * perf(assertions): avoid eager interpolated-string alloc in assertion source ctors by @thomhurst in thomhurst/TUnit#6091 * perf: optimize TestNameFormatter argument and bool formatting by @thomhurst in thomhurst/TUnit#6095 * perf: use FrozenSet/FrozenDictionary for read-only static lookups by @thomhurst in thomhurst/TUnit#6099 * perf: avoid GetCustomAttributes() + LINQ chain for per-property attribute scans by @thomhurst in thomhurst/TUnit#6098 * perf(engine): replace magic-string RequiredAttribute match with type check in ConstructorHelper by @thomhurst in thomhurst/TUnit#6087 * perf(core): replace Select+Func factory chain in DataSourceHelpers by @thomhurst in thomhurst/TUnit#6081 * perf: replace LINQ dependency extraction with manual loop by @thomhurst in thomhurst/TUnit#6096 * perf(core): avoid string[] alloc in ArgumentFormatter.FormatArguments by @thomhurst in thomhurst/TUnit#6080 * perf: use [GeneratedRegex] in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6094 * perf: dedupe GetSimpleTypeName into shared TypeNameFormatter by @thomhurst in thomhurst/TUnit#6097 * fix: remove GitVersion MSBuild task, pin local builds to 99.99.99 (#6077) by @thomhurst in thomhurst/TUnit#6101 * HTML Report: source link + code snippet on Source tab (#5993) by @thomhurst in thomhurst/TUnit#6100 * perf(sourcegen): Single-pass attribute classification by @thomhurst in thomhurst/TUnit#6111 * perf(core): eliminate per-test allocations in TestDetails/HookMethod by @thomhurst in thomhurst/TUnit#6109 * perf: hoist char[] alloc in FsCheckPropertyTestExecutor to static SearchValues by @thomhurst in thomhurst/TUnit#6108 * perf(core): de-LINQ data-source expansion by @thomhurst in thomhurst/TUnit#6110 * perf: avoid LINQ chains in TestDependency equality and MethodDataSourceAttribute method matching by @thomhurst in thomhurst/TUnit#6092 * perf(engine): reduce allocations in reflection-mode discovery/execution by @thomhurst in thomhurst/TUnit#6113 * perf(assertions): allocation-free passing path (TUnit.Assertions) by @thomhurst in thomhurst/TUnit#6112 ### Dependencies ... (truncated) ## 1.46.0 <!-- Release notes generated using configuration in .github/release.yml at v1.46.0 --> ## What's Changed ### Other Changes * docs: add Rider VSTest conflict troubleshooting by @smolchanovsky in thomhurst/TUnit#5989 * Populate generated test metadata with full source spans by @Copilot in thomhurst/TUnit#5991 * Add devcontainer configuration by @Copilot in thomhurst/TUnit#5995 * fix: treenode filter pre-filter rejects parenthesised segments (#6026) by @thomhurst in thomhurst/TUnit#6027 * fix(engine): isolate per-session state under MTP server-mode concurrency (#6001) by @thomhurst in thomhurst/TUnit#6025 ### Dependencies * chore(deps): update dependency stackexchange.redis to 2.13.10 by @thomhurst in thomhurst/TUnit#5985 * chore(deps): update tunit to 1.45.29 by @thomhurst in thomhurst/TUnit#5986 * chore(deps): update dependency mockolate to 3.2.1 by @thomhurst in thomhurst/TUnit#5987 * chore(deps): update dependency microsoft.playwright to 1.60.0 by @thomhurst in thomhurst/TUnit#5988 * chore(deps): update dependency messagepack to 3.1.6 by @thomhurst in thomhurst/TUnit#5992 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5998 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5997 * chore(deps): update verify to 31.17.0 by @thomhurst in thomhurst/TUnit#6000 * chore(deps): update verify to 31.18.0 by @thomhurst in thomhurst/TUnit#6013 * chore(deps): update dependency microsoft.net.test.sdk to 18.6.0 by @thomhurst in thomhurst/TUnit#6016 * chore(deps): update dependency dompurify to v3.4.6 by @thomhurst in thomhurst/TUnit#6015 * chore(deps): update dependency dompurify to v3.4.7 by @thomhurst in thomhurst/TUnit#6019 * chore(deps): update dependency npgsql to 10.0.3 by @thomhurst in thomhurst/TUnit#6020 * chore(deps): update dependency stackexchange.redis to 2.13.17 by @thomhurst in thomhurst/TUnit#6021 * chore(deps): update dependency npgsql.entityframeworkcore.postgresql to 10.0.2 by @thomhurst in thomhurst/TUnit#6022 ## New Contributors * @smolchanovsky made their first contribution in thomhurst/TUnit#5989 **Full Changelog**: thomhurst/TUnit@v1.45.29...v1.46.0 Commits viewable in [compare view](thomhurst/TUnit@v1.45.29...v1.48.6). </details> Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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Updated [TUnit.Core](https://github.com/thomhurst/TUnit) from 1.45.29 to 1.48.6. <details> <summary>Release notes</summary> _Sourced from [TUnit.Core's releases](https://github.com/thomhurst/TUnit/releases)._ ## 1.48.6 <!-- Release notes generated using configuration in .github/release.yml at v1.48.6 --> ## What's Changed ### Other Changes * fix(sourcegen): fully-qualify Linq calls in params array binding (#6140) by @thomhurst in thomhurst/TUnit#6141 ### Dependencies * chore(deps): update tunit to 1.48.0 by @thomhurst in thomhurst/TUnit#6135 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6137 * chore(deps): update dependency polyfill to 10.7.1 by @thomhurst in thomhurst/TUnit#6138 * chore(deps): update verify to 31.19.0 by @thomhurst in thomhurst/TUnit#6139 **Full Changelog**: thomhurst/TUnit@v1.48.0...v1.48.6 ## 1.48.0 <!-- Release notes generated using configuration in .github/release.yml at v1.48.0 --> ## What's Changed ### Other Changes * feat(html-report): baked-in C# syntax highlighting on Source tab by @slang25 in thomhurst/TUnit#6132 * feat(analyzers): suppress VSTHRD200 on test and hook methods by @thomhurst in thomhurst/TUnit#6123 * fix(source-gen): correct source location for cross-project inherited tests by @slang25 in thomhurst/TUnit#6133 * feat(assertions): add WasCalled to tunit mocks assertions by @robertcoltheart in thomhurst/TUnit#6126 * feat(arguments): bind array values to a single array test parameter by @thomhurst in thomhurst/TUnit#6122 * fix: populate retry/flaky attempt history in HTML report (#6119) by @thomhurst in thomhurst/TUnit#6124 ### Dependencies * chore(deps): update tunit to 1.47.0 by @thomhurst in thomhurst/TUnit#6115 * chore(deps): update dependency microsoft.visualstudio.threading.analyzers to 17.14.15 by @thomhurst in thomhurst/TUnit#6134 **Full Changelog**: thomhurst/TUnit@v1.47.0...v1.48.0 ## 1.47.0 <!-- Release notes generated using configuration in .github/release.yml at v1.47.0 --> ## What's Changed ### Other Changes * perf(engine): hoist GetParameters and dict-dedup AfterTestDiscovery hooks by @thomhurst in thomhurst/TUnit#6062 * perf(engine): hoist GetParameters and drop LINQ in reflection discovery by @thomhurst in thomhurst/TUnit#6063 * perf(engine): cache treenode filter path on TestMetadata by @thomhurst in thomhurst/TUnit#6064 * perf: use is T pattern in ReflectionExtensions.HasAttribute fallback (#6060) by @thomhurst in thomhurst/TUnit#6066 * perf: replace OrderBy().ToArray() with Array.Sort in ConstraintKeyScheduler by @thomhurst in thomhurst/TUnit#6067 * perf: pool HashSet in WaitingTestIndex.GetCandidatesForReleasedKeys by @thomhurst in thomhurst/TUnit#6069 * perf: collapse OfType chains in JUnitXmlWriter (#6052) by @thomhurst in thomhurst/TUnit#6070 * perf(engine): avoid closure allocation in AfterHookPairTracker.GetOrCreateAfterAssemblyTask (#6041) by @thomhurst in thomhurst/TUnit#6071 * perf: avoid closure allocation in BeforeHookTaskCache.GetOrCreateBeforeAssemblyTask (#6040) by @thomhurst in thomhurst/TUnit#6073 * perf: use TryAdd in TestDependencyResolver dependency dedupe by @thomhurst in thomhurst/TUnit#6068 * perf: replace LINQ Any with foreach in TestGenericTypeResolver (#6044) by @thomhurst in thomhurst/TUnit#6072 * perf: avoid Cast<object>().FirstOrDefault() iterator alloc in CastHelper (#6029) by @thomhurst in thomhurst/TUnit#6074 * perf(engine): avoid string round-trip when building nested type names (#6049) by @thomhurst in thomhurst/TUnit#6075 * perf(engine): replace Select+ToArray with manual Type[] build (#6043) by @thomhurst in thomhurst/TUnit#6076 * perf(core): replace OfType().FirstOrDefault()/.Any() with foreach in ClassConstructorHelper by @thomhurst in thomhurst/TUnit#6078 * perf(engine): avoid FirstOrDefault iterator alloc in TestGenericTypeResolver by @thomhurst in thomhurst/TUnit#6079 * perf(engine): use SearchValues<char> for reporter filename sanitization by @thomhurst in thomhurst/TUnit#6090 * perf: dedupe TestDataFormatter.FormatArguments with pooled StringBuilder by @thomhurst in thomhurst/TUnit#6088 * perf(engine): use MemoryExtensions.Split for path parsing in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6085 * perf(engine): use CollectionsMarshal.GetValueRefOrAddDefault for dictionary index builds by @thomhurst in thomhurst/TUnit#6086 * perf(engine): replace LINQ Where closure with inline filter in MetadataDependencyExpander BFS by @thomhurst in thomhurst/TUnit#6084 * perf(engine): pool StringBuilder in DisplayNameBuilder.FormatArguments by @thomhurst in thomhurst/TUnit#6082 * Preserve specialized chaining after null assertions by @thomhurst in thomhurst/TUnit#6008 * perf: use EnumerateLines for line splitting in HtmlReportGenerator by @thomhurst in thomhurst/TUnit#6089 * perf: collapse Replace chain in TestNameFormatter.BuildTestId by @thomhurst in thomhurst/TUnit#6083 * perf: use OrdinalIgnoreCase Contains in HtmlReportGenerator span mapping by @thomhurst in thomhurst/TUnit#6093 * perf(assertions): avoid eager interpolated-string alloc in assertion source ctors by @thomhurst in thomhurst/TUnit#6091 * perf: optimize TestNameFormatter argument and bool formatting by @thomhurst in thomhurst/TUnit#6095 * perf: use FrozenSet/FrozenDictionary for read-only static lookups by @thomhurst in thomhurst/TUnit#6099 * perf: avoid GetCustomAttributes() + LINQ chain for per-property attribute scans by @thomhurst in thomhurst/TUnit#6098 * perf(engine): replace magic-string RequiredAttribute match with type check in ConstructorHelper by @thomhurst in thomhurst/TUnit#6087 * perf(core): replace Select+Func factory chain in DataSourceHelpers by @thomhurst in thomhurst/TUnit#6081 * perf: replace LINQ dependency extraction with manual loop by @thomhurst in thomhurst/TUnit#6096 * perf(core): avoid string[] alloc in ArgumentFormatter.FormatArguments by @thomhurst in thomhurst/TUnit#6080 * perf: use [GeneratedRegex] in MetadataFilterMatcher by @thomhurst in thomhurst/TUnit#6094 * perf: dedupe GetSimpleTypeName into shared TypeNameFormatter by @thomhurst in thomhurst/TUnit#6097 * fix: remove GitVersion MSBuild task, pin local builds to 99.99.99 (#6077) by @thomhurst in thomhurst/TUnit#6101 * HTML Report: source link + code snippet on Source tab (#5993) by @thomhurst in thomhurst/TUnit#6100 * perf(sourcegen): Single-pass attribute classification by @thomhurst in thomhurst/TUnit#6111 * perf(core): eliminate per-test allocations in TestDetails/HookMethod by @thomhurst in thomhurst/TUnit#6109 * perf: hoist char[] alloc in FsCheckPropertyTestExecutor to static SearchValues by @thomhurst in thomhurst/TUnit#6108 * perf(core): de-LINQ data-source expansion by @thomhurst in thomhurst/TUnit#6110 * perf: avoid LINQ chains in TestDependency equality and MethodDataSourceAttribute method matching by @thomhurst in thomhurst/TUnit#6092 * perf(engine): reduce allocations in reflection-mode discovery/execution by @thomhurst in thomhurst/TUnit#6113 * perf(assertions): allocation-free passing path (TUnit.Assertions) by @thomhurst in thomhurst/TUnit#6112 ### Dependencies ... (truncated) ## 1.46.0 <!-- Release notes generated using configuration in .github/release.yml at v1.46.0 --> ## What's Changed ### Other Changes * docs: add Rider VSTest conflict troubleshooting by @smolchanovsky in thomhurst/TUnit#5989 * Populate generated test metadata with full source spans by @Copilot in thomhurst/TUnit#5991 * Add devcontainer configuration by @Copilot in thomhurst/TUnit#5995 * fix: treenode filter pre-filter rejects parenthesised segments (#6026) by @thomhurst in thomhurst/TUnit#6027 * fix(engine): isolate per-session state under MTP server-mode concurrency (#6001) by @thomhurst in thomhurst/TUnit#6025 ### Dependencies * chore(deps): update dependency stackexchange.redis to 2.13.10 by @thomhurst in thomhurst/TUnit#5985 * chore(deps): update tunit to 1.45.29 by @thomhurst in thomhurst/TUnit#5986 * chore(deps): update dependency mockolate to 3.2.1 by @thomhurst in thomhurst/TUnit#5987 * chore(deps): update dependency microsoft.playwright to 1.60.0 by @thomhurst in thomhurst/TUnit#5988 * chore(deps): update dependency messagepack to 3.1.6 by @thomhurst in thomhurst/TUnit#5992 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5998 * chore(deps): update dependency polyfill to 10.7.0 by @thomhurst in thomhurst/TUnit#5997 * chore(deps): update verify to 31.17.0 by @thomhurst in thomhurst/TUnit#6000 * chore(deps): update verify to 31.18.0 by @thomhurst in thomhurst/TUnit#6013 * chore(deps): update dependency microsoft.net.test.sdk to 18.6.0 by @thomhurst in thomhurst/TUnit#6016 * chore(deps): update dependency dompurify to v3.4.6 by @thomhurst in thomhurst/TUnit#6015 * chore(deps): update dependency dompurify to v3.4.7 by @thomhurst in thomhurst/TUnit#6019 * chore(deps): update dependency npgsql to 10.0.3 by @thomhurst in thomhurst/TUnit#6020 * chore(deps): update dependency stackexchange.redis to 2.13.17 by @thomhurst in thomhurst/TUnit#6021 * chore(deps): update dependency npgsql.entityframeworkcore.postgresql to 10.0.2 by @thomhurst in thomhurst/TUnit#6022 ## New Contributors * @smolchanovsky made their first contribution in thomhurst/TUnit#5989 **Full Changelog**: thomhurst/TUnit@v1.45.29...v1.46.0 Commits viewable in [compare view](thomhurst/TUnit@v1.45.29...v1.48.6). </details> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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[//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
@
What
Replace per-comparison LINQ iterator allocations with manual loops / direct comparisons in two equality-style hot paths:
TUnit.Core/TestDependency.cs— dependency equality during graph build. ReplacedtestParams.Select(x => x.Type).SequenceEqual(MethodParameters!)with a length check plus an indexedforloop.TUnit.Core/Attributes/TestData/MethodDataSourceAttribute.cs— runs per candidate method per data source resolution call. Replaced the three-iterator predicate (GetParameters().Select(...).SequenceEqual(Arguments.Select(...))) with aParameterTypesMatchArgumentshelper using a single manual loop.SingleOrDefaults duplicate-match semantics are preserved.Why
Each comparison allocated multiple LINQ iterators + lambdas. These run on hot paths (dependency graph build, data source resolution). The manual loops are allocation-free and short-circuit early.
Behavior
Identical, including null-argument matching: a null argument has no runtime type and therefore never matches a parameter type, matching the previous
a?.GetType()/SequenceEqualbehavior. Works in both source-gen and reflection modes (shared TUnit.Core code), AOT-safe (no new reflection), no public API or source-generator output changes (no snapshot impact).Validation
dotnet build TUnit.Coreacross netstandard2.0/net8.0/net9.0/net10.0 — 0 warnings, 0 errors.Closes #6061
@