DataTestMethod skips DataRows that provide different data arrays, only keeping last #1016
Description
Steps to reproduce
[DataTestMethod]
[DataRow(0, new int[] { })]
[DataRow(0, new int[] { 0 })]
[DataRow(0, new int[] { 0, 0, 0 })] // Is executed
[DataRow(1, new int[] { 1 })]
[DataRow(1, new int[] { 0, 1 })] // Is executed
public void TestMethod1(int expectedSum, int[] buckets)
{
Assert.AreEqual(expectedSum, buckets.Sum());
}Expected behavior
Test is executed with 5 sets of arguments.
Actual behavior
Test is executed with only 2 sets of arguments (see comments in snippet).
Test discovery DOES see all 5 test cases:
========== Starting test discovery ==========
========== Test discovery finished: 5 Tests found in 450,8 ms ==========
========== Starting test run ==========
========== Test run finished: 2 Tests (2 Passed, 0 Failed, 0 Skipped) run in 69 ms ==========
Environment
Windows 11, Visual Studio 2022 v17.0.1, .NET SDK 6.0.100.
<ItemGroup>
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
<PackageReference Include="MSTest.TestAdapter" Version="2.2.7" />
<PackageReference Include="MSTest.TestFramework" Version="2.2.7" />
<PackageReference Include="coverlet.collector" Version="3.1.0" />
</ItemGroup>