Writing unit tests for C# parsing, binding, and codegen phases
This section will enable you to add unit tests for a new C# language feature: Switch operator (?::). For details on the intended functionality of this operator, read the section, New language feature: Switch Operator (?::), at the start of this chapter.
C# compiler has the following set of unit test projects in Roslyn.sln:
CSharpCompilerSyntaxTest: This unit tests for parsing and syntax errors.CSharpCompilerSemanticTest: This unit tests for semantic errors and semantic model APIs.CSharpCompilerSymbolTest: This unit tests for symbols defined in the compiler layer.CSharpCommandLineTest: This unit tests for the compiler's command line options.CSharpCompilerEmitTest: This unit tests for the code generation phase that verifies the generated MSIL.
In this section, we will add unit tests to CSharpCompilerSyntaxTest,CSharpCompilerSemanticTest and CSharpCompilerEmitTest for parsing, binding, and codegen support, respectively.
