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Add analyzer for Console.Write*, Trace.Write*, and Debug.Write* usage in tests with code fixer (MSTEST0053) #6286
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Co-authored-by: Evangelink <[email protected]>
Co-authored-by: Evangelink <[email protected]>
Console.Write**
, Trace.Write**
, and Debug.Write**
usage in tests to suggest using TestContext
instead.There was a problem hiding this comment.
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@Youssef1313 do we want to be conditioned to having the capture enabled? I mean that if CaptureTraceOutput
is set to false, we may want to avoid reporting.
…review feedback Co-authored-by: Evangelink <[email protected]>
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Please add a fixer.
Please also add tests for calls in:
- AssemblyInit method
- AssemblyClenaup method
- ClassInit method
- ClassCleanup method
- TestInit method
- TestCleanup method
Also, please add a test with a method called by a test method.
… lifecycle methods Co-authored-by: Evangelink <[email protected]>
Added PreferTestContextWriteCodeFixer with full localization support, expanded analyzer to detect usage in all test lifecycle methods (AssemblyInit, AssemblyCleanup, ClassInit, ClassCleanup, TestInit, TestCleanup), and added comprehensive tests including code fix verification. Commit: c1eb25d |
namespace MSTest.Analyzers.Test; | ||
|
||
[TestClass] | ||
public sealed class PreferTestContextWriteAnalyzerTests |
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Every test with a diagnostic should have the equivalent code fixer.
[TestMethod] | ||
public void MyTestMethod() | ||
{ | ||
TestContext.WriteLine("test"); |
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Original code is using Write
so after codefix we should use Write
MessageFormat, | ||
Description, | ||
Category.Usage, | ||
DiagnosticSeverity.Warning, |
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It should be Info
This PR implements a new MSTest analyzer
PreferTestContextWriteAnalyzer
(MSTEST0053) that detects usage ofConsole.Write*
,Trace.Write*
, andDebug.Write*
methods in test methods and test lifecycle methods, and provides an automatic code fixer to replace them withTestContext.WriteLine
.Problem
When developers use
Console.Write
,Console.WriteLine
,Trace.Write
,Trace.WriteLine
,Debug.Write
, orDebug.WriteLine
in test methods or test lifecycle methods, the output may be lost or not properly captured by the test framework. This makes debugging tests more difficult and can result in important diagnostic information being missed.Solution
The new analyzer detects these problematic patterns in:
[TestMethod]
)[TestInitialize]
,[TestCleanup]
,[ClassInitialize]
,[ClassCleanup]
,[AssemblyInitialize]
,[AssemblyCleanup]
)The included code fixer automatically replaces the problematic calls with
TestContext.WriteLine
to ensure test output is properly captured and displayed by the test framework.Example
Before (triggers MSTEST0053):
After (with code fixer applied):
Implementation Details
[TestMethod]
,[TestInitialize]
,[TestCleanup]
,[ClassInitialize]
,[ClassCleanup]
,[AssemblyInitialize]
,[AssemblyCleanup]
)TestContext.WriteLine
Write
andWriteLine
methods onConsole
,Trace
, andDebug
typesFiles Modified
PreferTestContextWriteAnalyzer.cs
- Main analyzer implementationPreferTestContextWriteCodeFixer.cs
- Automatic code fixerPreferTestContextWriteAnalyzerTests.cs
- Comprehensive unit tests including code fixer testsDiagnosticIds.cs
- Added MSTEST0053 diagnostic IDWellKnownTypeNames.cs
- Added Console, Trace, Debug type namesResources.resx
- Added localized resource stringsCodeFixResources.resx
- Added code fixer resource stringsAnalyzerReleases.Unshipped.md
- Added analyzer documentationThe analyzer follows MSTest analyzer patterns and integrates seamlessly with the existing analyzer infrastructure. The code fixer provides immediate, automated resolution of the detected issues.
Fixes #6285.
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