Write the received file from the stream for handle based FileStreams - #1869
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The NotEqual path in InnerCompare copied by fileStream.Name, which is not a path for a FileStream built from a handle: .NET Framework reports "[Unknown]", and modern .NET falls back to that when the path cannot be resolved. The first run succeeded, since the New path goes through IoHelpers.WriteStream, and the next mismatch threw "Failed to compare files: Could not find file '[Unknown]'". WriteStream already keeps the copy-by-path fast path and falls back to the handle, so it replaces the raw copy here.
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Updated [Verify.XunitV3](https://github.com/VerifyTests/Verify) from 31.28.0 to 32.0.0. <details> <summary>Release notes</summary> _Sourced from [Verify.XunitV3's releases](https://github.com/VerifyTests/Verify/releases)._ ## 32.0.0 - [x] [#1832](VerifyTests/Verify#1832) Add Inline snpashot support - [x] [#1835](VerifyTests/Verify#1835) Add SettingsTask.AddContext - [x] [#1847](VerifyTests/Verify#1847) Honor explicit DefaultValueHandling for bools - [x] [#1850](VerifyTests/Verify#1850) Stray extension-less snapshot file crashes every run of its test - [x] [#1851](VerifyTests/Verify#1851) Static UniqueForTargetFramework(Assembly) overloads ignore the assembly passed to them - [x] [#1852](VerifyTests/Verify#1852) Appended files skip scrubbing and newline normalization when a stream converter is registered - [x] [#1853](VerifyTests/Verify#1853) IgnoreParameters() ignore-all sentinel is lost when combined with another ignore source - [x] [#1854](VerifyTests/Verify#1854) Format UTC offsets with the invariant culture - [x] [#1855](VerifyTests/Verify#1855) Format UTC offsets with invariant culture - [x] [#1856](VerifyTests/Verify#1856) Use ticks to decide date precision - [x] [#1857](VerifyTests/Verify#1857) Clean # out of file name parameters - [x] [#1858](VerifyTests/Verify#1858) Escape one character trimmed date formats - [x] [#1859](VerifyTests/Verify#1859) Prefer the exact type when resolving a member converter - [x] [#1860](VerifyTests/Verify#1860) Keep empty collections ignored alongside instance predicates - [x] [#1861](VerifyTests/Verify#1861) Key the combinations name cache by reference - [x] [#1862](VerifyTests/Verify#1862) Match MSTest overloads against the test data - [x] [#1863](VerifyTests/Verify#1863) Report deletes as directory relative paths - [x] [#1864](VerifyTests/Verify#1864) Name the guarded API in ThrowIfVerifyHasBeenRun - [x] [#1865](VerifyTests/Verify#1865) Keep stack frames that have no parameter list - [x] [#1866](VerifyTests/Verify#1866) Generate the TestContext property for record test classes - [x] [#1867](VerifyTests/Verify#1867) Fix two CombinationResultsConverter edge cases - [x] [#1868](VerifyTests/Verify#1868) Sign sub-hour UTC offsets - [x] [#1869](VerifyTests/Verify#1869) Write the received file from the stream for handle based FileStreams - [x] [#1870](VerifyTests/Verify#1870) Compare prefixes ignoring case - [x] [#1871](VerifyTests/Verify#1871) Guard the counter value caches with a lock - [x] [#1872](VerifyTests/Verify#1872) Sign sub-hour UTC offsets ## 32.0.0-beta.16 ## 32.0.0-beta.15 ## 32.0.0-beta.14 ## 32.0.0-beta.13 ## 32.0.0-beta.12 ## 32.0.0-beta.10 ## 32.0.0-beta.8 ## 32.0.0-beta.7 ## 32.0.0-beta.6 ## 32.0.0-beta.5 ## 32.0.0-beta.4 ## 32.0.0-beta.3 ## 32.0.0-beta.2 ## 32.0.0-beta.1 Commits viewable in [compare view](VerifyTests/Verify@31.28.0...32.0.0). </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. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (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 <dependency name> major version` will close this group update PR and stop Dependabot creating any more for the specific dependency's major version (unless you unignore this specific dependency's major version or upgrade to it yourself) - `@dependabot ignore <dependency name> minor version` will close this group update PR and stop Dependabot creating any more for the specific dependency's minor version (unless you unignore this specific dependency's minor version or upgrade to it yourself) - `@dependabot ignore <dependency name>` will close this group update PR and stop Dependabot creating any more for the specific dependency (unless you unignore this specific dependency or upgrade to it yourself) - `@dependabot unignore <dependency name>` will remove all of the ignore conditions of the specified dependency - `@dependabot unignore <dependency name> <ignore condition>` will remove the ignore condition of the specified dependency and ignore conditions </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
This was referenced Aug 27, 2026
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FileComparer.InnerComparewrites the received file on a mismatch withIoHelpers.CopyFile(fileStream.Name, …).Nameis not a path for aFileStreambuilt from a handle — .NET Framework reports[Unknown], and modern .NET falls back to that when the path cannot be resolved from the handle.The first run of such a test passes: the New path goes through
IoHelpers.WriteStream, which already guards for this (TryFileCopybails on a non rooted name and copies through the handle instead). The next run, once a.verified.file exists and the content differs, throws:So
WriteStreamreplaces the raw copy here — same copy-by-path fast path, with the fallback the other paths already get.HandleStreamTests.Mismatchopens aFileStreamover another stream'sSafeFileHandleand verifies it against a differing snapshot. Two notes on how it is built:StringBuilderup front andFileCompareris never reached, so the test would pass without proving anything.WriteStreamand is therefore already safe) does not short-circuit ahead of the comparison.On net48 it reproduces the crash above; on net11.0 the handle resolves back to a real path, so it passes either way there and only asserts the outcome. Full
Verify.Testspasses on both net48 (1221) and net11.0 (1300).