fix: TRX parser data-loss bugs and FQTN derivation spec compliance

[BenjaminMichaelis]

Summary

Fixes several data-loss and correctness bugs discovered by deep comparison against the upstream Microsoft.TestPlatform TRX object model.

Changes

1. XML serialization annotations (data-loss fixes)

Several model classes were missing [XmlAttribute]/[XmlElement] annotations, causing silent data loss during deserialization:

• Counters — added [XmlAttribute] on all 16 counter properties
• Execution — added [XmlAttribute("id")]
• ResultSummary — added [XmlAttribute] + [XmlElement] for Counters and Output
• TestList — added [XmlAttribute] on Name and Id
• TestLists — added [XmlElement("TestList")] on Items
• TestEntry — added [XmlAttribute] on all three properties
• TestEntries — added [XmlElement("TestEntry")] on Items

2. Missing properties on core model classes

• TestRun — added RunUser, ResultSummary, TestLists, TestEntries
• UnitTestResult — added ExecutionId, TestListId, TestType, RelativeResultsDirectory
• UnitTest — added Storage, Execution

3. Parser fixes

• TestResultSet.TestRunId was never populated — now set from testRun.Id
• FQTN for theory tests now preserves the parameter suffix (e.g. Method(param: 42))
• TestResult.ToString() no longer throws ArgumentOutOfRangeException for unknown outcome values

4. Spec-compliant FQTN derivation (spec bug fix)

The TRX spec provides TestMethod.className and TestMethod.name as authoritative fields. Previously TestResult re-derived ClassName/Namespace by splitting the FQTN on '.', which breaks when theory-test parameter values contain dots (e.g. Method(param: "foo.bar")).

When testMethod is available, FullyQualifiedClassName/ClassName/Namespace are now derived from testMethod.ClassName directly. The dot-split heuristic is kept as a fallback.

Test approach

All fixes were developed TDD-style: failing tests written first, then implementation to make them pass.

• 3 commits: red tests → green parser/model fixes → green FQTN spec fix
• 49 tests pass, 0 regressions

[Copilot]

Pull request overview

This PR fixes TRX parsing/data-model correctness issues by aligning TrxLib’s XML-serializable object model and FQTN derivation logic with vstest/TRX semantics, preventing silent deserialization data loss and improving result identity for theory tests.

Changes:

• Added missing TRX model fields and XML serialization attributes/elements to prevent data loss during deserialization.
• Fixed parser output to populate TestResultSet.TestRunId and preserve theory-test parameter suffixes in FQTN.
• Updated TestResult inference to prefer authoritative TestMethod.className and made ToString() resilient to unknown TestOutcome values.

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
TrxLib/UnitTestResult.cs	Adds missing TRX UnitTestResult attributes (execution/list/type/attachments metadata).
TrxLib/UnitTest.cs	Adds storage and <Execution> mapping for unit test definitions.
TrxLib/TrxParser.cs	Fixes FQTN construction (theory params) and populates TestRunId on the result set.
TrxLib/TestRun.cs	Adds run metadata and sections (runUser, ResultSummary, TestLists, TestEntries).
TrxLib/TestResult.cs	Uses TestMethod.className for class/namespace derivation and avoids ToString() throwing on unknown outcomes.
TrxLib/TestLists.cs	Introduces model for <TestLists> deserialization.
TrxLib/TestList.cs	Introduces model for individual <TestList> entries.
TrxLib/TestEntries.cs	Introduces model for <TestEntries> deserialization.
TrxLib/TestEntry.cs	Introduces model for individual <TestEntry> links (testId/executionId/testListId).
TrxLib/ResultSummary.cs	Introduces model for <ResultSummary> including counters/output.
TrxLib/Execution.cs	Introduces model for <Execution id="..."/> under unit tests.
TrxLib/Counters.cs	Introduces model for <Counters ...> attributes to preserve vstest-computed counts.
TrxLib.Tests/TrxParserTests.cs	Adds regression coverage for previously dropped TRX attributes/elements and theory FQTN preservation.
TrxLib.Tests/TestResultTests.cs	Adds coverage for dotted theory params and ToString() behavior with unknown outcomes.

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[Copilot]

Pull request overview

Copilot reviewed 14 out of 14 changed files in this pull request and generated no new comments.