dotnet test html logger throws execption when using special characters in DataRow attributes.

[crone66]

Describe the bug

When using DataRow attribute in a unit-test such as [DataRow((char)8)] causes an exception in the dotnet test logger when using html logs. It is a pain to figure out what the actual root cause is in bigger projects :).

I configured the test logger by using Directory.Build.props file. But I guess the same issue should occur when using dotnet test --logger html

<?xml version="1.0" encoding="utf-8"?>
<Project>
    <PropertyGroup>
        <SignAssembly>false</SignAssembly>
    </PropertyGroup>
    <PropertyGroup>
        <VSTestLogger>html%3BLogFileName=$(MSBuildProjectName).html</VSTestLogger>
    </PropertyGroup>
</Project>

    [TestClass]
    public class MyTestClass
    {
        [DataRow((char)8)] //html logger prints an error and the test result file is empty.
        [DataRow((char)122)]
        [TestMethod]
        public void UselessTestMethod(char key)
        {
            Assert.IsTrue(key > 0);
        }
    }

To Reproduce

The output of the last executed github action run shows the error in the Test step
https://github.com/crone66/bug-dotnet-test/tree/main

Exceptions (if any)

Html Logger Error : '�', hexadecimal value 0x08, is an invalid character.

Further technical details

• Error can be seen when using github actions

[nohwnd]

Moved to vstest, Will see how we can escape it better.