public void IsStringEquals(string check, bool expected)
{
var testCode = @"
namespace RoslynSandbox
{
using System;
public class Foo
{
private string bar1;
private string bar2;
private int bar3;
public Foo()
{
string.Equals(this.bar1, this.bar1);
}
}
}";
testCode = testCode.AssertReplace("string.Equals(this.bar1, this.bar1)", check);
var syntaxTree = CSharpSyntaxTree.ParseText(testCode);
var compilation = CSharpCompilation.Create("test", new[] { syntaxTree }, MetadataReferences.FromAttributes());
var semanticModel = compilation.GetSemanticModel(syntaxTree);
var invocation = syntaxTree.FindInvocation(check);
var arg0 = semanticModel.GetSymbolSafe(invocation.ArgumentList.Arguments[0].Expression, CancellationToken.None);
var arg1 = semanticModel.GetSymbolSafe(invocation.ArgumentList.Arguments[1].Expression, CancellationToken.None);
Assert.AreEqual(expected, Equality.IsStringEquals(invocation, semanticModel, CancellationToken.None, arg0, arg1));
Assert.AreEqual(expected, Equality.IsStringEquals(invocation, semanticModel, CancellationToken.None, arg1, arg0));
}
