public void PrintTypeNameIsFalseByDefault()
{
string code = @"
[StructGenerators.GenerateToString]
public partial struct MyStruct
{
}
";
var generatorTestHelper = new GeneratorTestHelper <ToStringGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().Contain(@"// sb.Append(""MyStruct "");");
}
public void StructWithNoFields()
{
string code = @"
[StructGenerators.GenerateEquality]
public partial struct MyStruct
{
}
";
var generatorTestHelper = new GeneratorTestHelper <EqualityGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().Contain("Equals");
output.Should().Contain("42");
}
public void Record()
{
string code = @"
[StructGenerators.GenerateToString]
public partial record MyRecord
{
}
";
var generatorTestHelper = new GeneratorTestHelper <ToStringGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().Contain(@"sb.Append(""MyRecord "");");
output.Should().Contain("virtual bool PrintMembers(StringBuilder sb)");
}
public void SkipIsRespected()
{
string code = @"
[StructGenerators.GenerateToString]
public partial struct MyStruct
{
[StructGenerators.ToStringBehavior(Skip = true)]
public int[] S2 => null;
}
";
var generatorTestHelper = new GeneratorTestHelper <ToStringGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().NotContain("PrintCollection");
}
public void StructWithOneField()
{
string code = @"
[StructGenerators.GenerateEquality]
public partial struct MyStruct
{
private readonly string _s;
}
";
var generatorTestHelper = new GeneratorTestHelper <EqualityGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().Contain("Equals");
output.Should().Contain("_s");
output.Should().NotContain("42");
}
public void RespectTheLimits()
{
string code = @"
[StructGenerators.GenerateToString(MaxStringLength = 142)]
public partial struct MyStruct
{
[StructGenerators.ToStringBehavior(CollectionCountLimit = 99)]
private readonly string[] _s;
}
";
var generatorTestHelper = new GeneratorTestHelper <ToStringGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().Contain(", limit: 99");
output.Should().Contain("142");
}
public void RecordWithPrimaryConstructor()
{
string code = @"
[StructGenerators.GenerateToString]
public partial record MyRecord(int Property1)
{
}
";
var generatorTestHelper = new GeneratorTestHelper <ToStringGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().Contain(@"sb.Append(""MyRecord "");");
output.Should().Contain("virtual bool PrintMembers(StringBuilder sb)");
output.Should().Contain("Property1");
output.Should().NotContain("EqualityContract");
}
public void StructAlreadyHasGetHashCode()
{
// TODO: this test can do a better job and detect exactly what is going on.
// This should be fine: the generated code should just skip it.
string code = @"
[StructGenerators.GenerateEquality]
public partial struct MyStruct
{
private readonly string _s;
public override int GetHashCode() => 42;
}
";
var generatorTestHelper = new GeneratorTestHelper <EqualityGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().NotContain("GetHashCode");
}
public void LegacyCollectionToStringBehavior()
{
string code = @"
[StructGenerators.GenerateToString]
public partial struct MyStruct
{
private readonly string[] _s;
public string[] S => _s;
[StructGenerators.ToStringBehavior(CollectionsBehavior = StructGenerators.CollectionsBehavior.PrintContent)]
public int[] S2 => null;
}
";
var generatorTestHelper = new GeneratorTestHelper <ToStringGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().Contain("behavior: CollectionsBehavior.PrintContent");
output.Should().Contain("limit: 100");
}
public void GenericStructWithOneFieldAndStatic()
{
string code = @"
[StructGenerators.GenerateEquality]
public partial struct MyStruct<T1, T2, T3, T4, T5>
{
private readonly T1 _t1;
private readonly T2 _t2;
private readonly T3 _t3;
private readonly T4 _t4;
private readonly T5 _t5;
private static string _staticS;
}
";
var generatorTestHelper = new GeneratorTestHelper <EqualityGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().Contain("Equals");
output.Should().NotContain("42");
output.Should().NotContain("_staticS");
}
public void SkipFieldsAndProperties()
{
string code = @"
[StructGenerators.GenerateToString]
public partial struct MyStruct
{
[StructGenerators.ToStringBehavior(Skip = true)]
private readonly string _s;
[StructGenerators.ToStringBehavior(Skip = true)]
public string S => _s;
public string Y => _s;
}
";
var generatorTestHelper = new GeneratorTestHelper <ToStringGenerator>();
var output = generatorTestHelper.GetGeneratedOutput(code);
output.Should().NotContain("Append((object)_s)");
output.Should().NotContain("Append((object)S)");
output.Should().Contain("Append((object)Y)");
}
