public void AppendFormatted_String_ICustomFormatter()
{
var provider = new ConcatFormatter();
var expected = new StringBuilder();
var actual = new StringBuilder();
StringBuilder.AppendInterpolatedStringHandler iab = new StringBuilder.AppendInterpolatedStringHandler(0, 0, actual, provider);
foreach (string s in new[] { null, "", "a" })
{
// string
expected.AppendFormat(provider, "{0}", s);
iab.AppendFormatted(s);
// string, format
expected.AppendFormat(provider, "{0:X2}", s);
iab.AppendFormatted(s, "X2");
// string, alignment
expected.AppendFormat(provider, "{0,3}", s);
iab.AppendFormatted(s, 3);
// string, alignment, format
expected.AppendFormat(provider, "{0,-3:X2}", s);
iab.AppendFormatted(s, -3, "X2");
}
actual.Append(provider, ref iab);
Assert.Equal(expected.ToString(), actual.ToString());
}
public void AppendFormatted_String_ICustomFormatter()
{
var provider = new ConcatFormatter();
var expected = new StringBuilder();
InterpolatedStringBuilder actual = InterpolatedStringBuilder.Create(0, 0, provider);
foreach (string s in new[] { null, "", "a" })
{
// string
expected.AppendFormat(provider, "{0}", s);
actual.AppendFormatted(s);
// string, format
expected.AppendFormat(provider, "{0:X2}", s);
actual.AppendFormatted(s, "X2");
// string, alignment
expected.AppendFormat(provider, "{0,3}", s);
actual.AppendFormatted(s, 3);
// string, alignment, format
expected.AppendFormat(provider, "{0,-3:X2}", s);
actual.AppendFormatted(s, -3, "X2");
}
Assert.Equal(expected.ToString(), actual.ToStringAndClear());
}
public void AppendFormatted_String_ICustomFormatter()
{
var provider = new ConcatFormatter();
var expected = new StringBuilder();
MemoryExtensions.TryWriteInterpolatedStringHandler actual = new MemoryExtensions.TryWriteInterpolatedStringHandler(0, 0, _largeBuffer, provider, out _);
foreach (string s in new[] { null, "", "a" })
{
// string
expected.AppendFormat(provider, "{0}", s);
actual.AppendFormatted(s);
// string, format
expected.AppendFormat(provider, "{0:X2}", s);
actual.AppendFormatted(s, "X2");
// string, alignment
expected.AppendFormat(provider, "{0,3}", s);
actual.AppendFormatted(s, 3);
// string, alignment, format
expected.AppendFormat(provider, "{0,-3:X2}", s);
actual.AppendFormatted(s, -3, "X2");
}
Assert.True(MemoryExtensions.TryWrite(_largeBuffer, ref actual, out int charsWritten));
Assert.Equal(expected.ToString(), _largeBuffer.AsSpan(0, charsWritten).ToString());
}
public void AppendFormatted_ValueTypes_ICustomFormatter()
{
var provider = new ConcatFormatter();
void Test <T>(T t)
{
void AssertTss(T tss, string format)
{
Assert.Equal(format, ((IHasToStringState)tss).ToStringState.LastFormat);
Assert.Same(provider, ((IHasToStringState)tss).ToStringState.LastProvider);
Assert.Equal(ToStringMode.ICustomFormatterFormat, ((IHasToStringState)tss).ToStringState.ToStringMode);
}
var expected = new StringBuilder();
var actual = new StringBuilder();
StringBuilder.AppendInterpolatedStringHandler iab = new StringBuilder.AppendInterpolatedStringHandler(0, 0, actual, provider);
// struct
expected.AppendFormat(provider, "{0}", t);
iab.AppendFormatted(t);
AssertTss(t, null);
// struct, format
expected.AppendFormat(provider, "{0:X2}", t);
iab.AppendFormatted(t, "X2");
AssertTss(t, "X2");
// struct, alignment
expected.AppendFormat(provider, "{0,3}", t);
iab.AppendFormatted(t, 3);
AssertTss(t, null);
// struct, alignment, format
expected.AppendFormat(provider, "{0,-3:X2}", t);
iab.AppendFormatted(t, -3, "X2");
AssertTss(t, "X2");
Assert.Equal(expected.ToString(), actual.ToString());
actual.Append(ref iab);
}
Test(new FormattableInt32Wrapper(42));
Test(new SpanFormattableInt32Wrapper(84));
Test((FormattableInt32Wrapper?)new FormattableInt32Wrapper(42));
Test((SpanFormattableInt32Wrapper?)new SpanFormattableInt32Wrapper(84));
}
public void AppendFormatted_ReferenceTypes_ICustomFormatter()
{
var provider = new ConcatFormatter();
var expected = new StringBuilder();
var actual = new StringBuilder();
StringBuilder.AppendInterpolatedStringHandler iab = new StringBuilder.AppendInterpolatedStringHandler(0, 0, actual, provider);
foreach (string s in new[] { null, "", "a" })
{
foreach (IHasToStringState tss in new IHasToStringState[] { new FormattableStringWrapper(s), new SpanFormattableStringWrapper(s) })
{
void AssertTss(IHasToStringState tss, string format)
{
Assert.Equal(format, tss.ToStringState.LastFormat);
Assert.Same(provider, tss.ToStringState.LastProvider);
Assert.Equal(ToStringMode.ICustomFormatterFormat, tss.ToStringState.ToStringMode);
}
// object
expected.AppendFormat(provider, "{0}", tss);
iab.AppendFormatted(tss);
AssertTss(tss, null);
// object, format
expected.AppendFormat(provider, "{0:X2}", tss);
iab.AppendFormatted(tss, "X2");
AssertTss(tss, "X2");
// object, alignment
expected.AppendFormat(provider, "{0,3}", tss);
iab.AppendFormatted(tss, 3);
AssertTss(tss, null);
// object, alignment, format
expected.AppendFormat(provider, "{0,-3:X2}", tss);
iab.AppendFormatted(tss, -3, "X2");
AssertTss(tss, "X2");
}
}
actual.Append(provider, ref iab);
Assert.Equal(expected.ToString(), actual.ToString());
}
public void AppendFormatted_ValueTypes_ICustomFormatter()
{
var provider = new ConcatFormatter();
void Test <T>(T t)
{
void AssertTss(T tss, string format)
{
Assert.Equal(format, ((IHasToStringState)tss).ToStringState.LastFormat);
Assert.Same(provider, ((IHasToStringState)tss).ToStringState.LastProvider);
Assert.Equal(ToStringMode.ICustomFormatterFormat, ((IHasToStringState)tss).ToStringState.ToStringMode);
}
var expected = new StringBuilder();
MemoryExtensions.TryWriteInterpolatedStringHandler actual = new MemoryExtensions.TryWriteInterpolatedStringHandler(0, 0, _largeBuffer, provider, out _);
// struct
expected.AppendFormat(provider, "{0}", t);
actual.AppendFormatted(t);
AssertTss(t, null);
// struct, format
expected.AppendFormat(provider, "{0:X2}", t);
actual.AppendFormatted(t, "X2");
AssertTss(t, "X2");
// struct, alignment
expected.AppendFormat(provider, "{0,3}", t);
actual.AppendFormatted(t, 3);
AssertTss(t, null);
// struct, alignment, format
expected.AppendFormat(provider, "{0,-3:X2}", t);
actual.AppendFormatted(t, -3, "X2");
AssertTss(t, "X2");
Assert.True(MemoryExtensions.TryWrite(_largeBuffer, ref actual, out int charsWritten));
Assert.Equal(expected.ToString(), _largeBuffer.AsSpan(0, charsWritten).ToString());
}
Test(new FormattableInt32Wrapper(42));
Test(new SpanFormattableInt32Wrapper(84));
Test((FormattableInt32Wrapper?)new FormattableInt32Wrapper(42));
Test((SpanFormattableInt32Wrapper?)new SpanFormattableInt32Wrapper(84));
}
public void AppendFormatted_ReferenceTypes_ICustomFormatter()
{
var provider = new ConcatFormatter();
var expected = new StringBuilder();
MemoryExtensions.TryWriteInterpolatedStringHandler actual = new MemoryExtensions.TryWriteInterpolatedStringHandler(0, 0, _largeBuffer, provider, out _);
foreach (string s in new[] { null, "", "a" })
{
foreach (IHasToStringState tss in new IHasToStringState[] { new FormattableStringWrapper(s), new SpanFormattableStringWrapper(s) })
{
void AssertTss(IHasToStringState tss, string format)
{
Assert.Equal(format, tss.ToStringState.LastFormat);
Assert.Same(provider, tss.ToStringState.LastProvider);
Assert.Equal(ToStringMode.ICustomFormatterFormat, tss.ToStringState.ToStringMode);
}
// object
expected.AppendFormat(provider, "{0}", tss);
actual.AppendFormatted(tss);
AssertTss(tss, null);
// object, format
expected.AppendFormat(provider, "{0:X2}", tss);
actual.AppendFormatted(tss, "X2");
AssertTss(tss, "X2");
// object, alignment
expected.AppendFormat(provider, "{0,3}", tss);
actual.AppendFormatted(tss, 3);
AssertTss(tss, null);
// object, alignment, format
expected.AppendFormat(provider, "{0,-3:X2}", tss);
actual.AppendFormatted(tss, -3, "X2");
AssertTss(tss, "X2");
}
}
Assert.True(MemoryExtensions.TryWrite(_largeBuffer, ref actual, out int charsWritten));
Assert.Equal(expected.ToString(), _largeBuffer.AsSpan(0, charsWritten).ToString());
}
