System.Text.Json.SourceGeneration.Unit.Tests are disabled in WASM

[eerhardt]

Our System.Text.Json.SourceGeneration.Tests use the following to add references to the compilation:

runtime/src/libraries/System.Text.Json/tests/System.Text.Json.SourceGeneration.UnitTests/CompilationHelper.cs

Lines 31 to 37 in 7994e59

	List<MetadataReference> references = new List<MetadataReference> {
	MetadataReference.CreateFromFile(typeof(object).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(Attribute).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(Type).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(KeyValuePair).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(ContractNamespaceAttribute).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(JavaScriptEncoder).Assembly.Location),

This doesn't work in browser-wasm because Assembly.Location returns string.Empty. Thus we get exceptions that empty string is not a valid file path.

If we feel we need to run these tests on browser-wasm, we need to figure out a way to reference these assemblies so Roslyn can compile code.

cc @lewing @radical

[ghost]

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Issue Details

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Our System.Text.Json.SourceGeneration.Tests use the following to add references to the compilation:

runtime/src/libraries/System.Text.Json/tests/System.Text.Json.SourceGeneration.UnitTests/CompilationHelper.cs

Lines 31 to 37 in 7994e59

	List<MetadataReference> references = new List<MetadataReference> {
	MetadataReference.CreateFromFile(typeof(object).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(Attribute).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(Type).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(KeyValuePair).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(ContractNamespaceAttribute).Assembly.Location),
	MetadataReference.CreateFromFile(typeof(JavaScriptEncoder).Assembly.Location),

This doesn't work in browser-wasm because Assembly.Location returns string.Empty. Thus we get exceptions that empty string is not a valid file path.

If we feel we need to run these tests on browser-wasm, we need to figure out a way to reference these assemblies so Roslyn can compile code.

cc @lewing @radical

Author:	eerhardt
Assignees:	-
Labels:	area-System.Text.Json, disabled-test
Milestone:	-

[elinor-fung]

This is the case for all source generator unit tests that need to set up a compilation as part of the test, not just the System.Text.Json ones. Some of the others are disabled for other reasons beyond the Assembly.Location usage, but they do all currently Assembly.Location in some way to set up the references needed for compilation.