Update tests with string constant default argument

Author: tonybaloney

PythonSourceGenerator.Tests/TokenizerTests.cs

@@ -45,6 +45,7 @@ public void TokenizeWithDefaultValue()
             PythonSignatureTokens.PythonSignatureToken.Colon,
             PythonSignatureTokens.PythonSignatureToken.Identifier,
             PythonSignatureTokens.PythonSignatureToken.Equal,
+            PythonSignatureTokens.PythonSignatureToken.String,
             PythonSignatureTokens.PythonSignatureToken.CloseParenthesis,
             PythonSignatureTokens.PythonSignatureToken.Arrow,
             PythonSignatureTokens.PythonSignatureToken.Identifier,
@@ -80,6 +81,16 @@ public void ParseFunctionParameterNoType()
         Assert.Null(result.Value.Type);
     }
 
+    [Fact]
+    public void ParseFunctionParameterDefault()
+    {
+        var tokens = PythonSignatureTokenizer.Tokenize("a = 1");
+        var result = PythonSignatureParser.PythonParameterTokenizer.TryParse(tokens);
+        Assert.True(result.HasValue);
+        Assert.Equal("a", result.Value.Name);
+        Assert.Null(result.Value.Type);
+    }
+
     [Fact]
     public void ParseFunctionParameterListEasy()
     {

PythonSourceGenerator.Tests/TypeReflectionTests.cs

@@ -1,5 +1,4 @@
-using Microsoft.CodeAnalysis.CSharp.Syntax;
-using PythonSourceGenerator.Reflection;
+using PythonSourceGenerator.Reflection;
 
 namespace PythonSourceGenerator.Tests;