public async Task WriteLineReadOnlyMemoryAsync_TokenCanceled_ReturnsCanceledTask()
{
// Arrange
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
var memory = new ReadOnlyMemory <char>(new char[] { 'a' });
var cancellationToken = new CancellationToken(true);
// Act
using (writer)
{
await Assert.ThrowsAsync <TaskCanceledException>(async() => await writer.WriteLineAsync(memory, cancellationToken));
}
// Assert
Assert.Equal(0, stream.Length);
}
public async Task WriteLineAsyncString_WritesToStream(int charCount, int newLineLength)
{
// Arrange
var content = new string('a', charCount);
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
writer.NewLine = new string('\n', newLineLength);
// Act
using (writer)
{
await writer.WriteLineAsync(content);
}
// Assert
Assert.Equal(charCount + newLineLength, stream.Length);
}
public async Task WriteLineAsyncString_OnlyWritesNewLineToStream_ForNullArgument(int newLineLength)
{
// Arrange
string?content = null;
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
writer.NewLine = new string('\n', newLineLength);
// Act
using (writer)
{
await writer.WriteLineAsync(content);
}
// Assert
Assert.Equal(newLineLength, stream.Length);
}
public async Task WriteLineAsyncCharArray_OnlyWritesNewLineToStream_ForZeroCount(int newLineLength)
{
// Arrange
var content = new char[1];
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
writer.NewLine = new string('\n', newLineLength);
// Act
using (writer)
{
await writer.WriteLineAsync(content, 0, 0);
}
// Assert
Assert.Equal(newLineLength, stream.Length);
}
public async Task WriteLineReadOnlyMemoryAsync_WritesToStream(int byteLength, int newLineLength)
{
// Arrange
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
writer.NewLine = new string('\n', newLineLength);
// Act
using (writer)
{
var array = new string('a', byteLength).ToCharArray();
var memory = new ReadOnlyMemory <char>(array);
await writer.WriteLineAsync(memory);
}
// Assert
Assert.Equal(byteLength + newLineLength, stream.Length);
}
