public async Task NoDataWritten_FlushAsync_DoesNotFlushUnderlyingStream()
{
// Arrange
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
// Act
await writer.FlushAsync();
// Assert
Assert.Equal(0, stream.FlushAsyncCallCount);
Assert.Equal(0, stream.Length);
}
public async Task FlushesBuffer_OnFlushAsync(int byteLength)
{
// Arrange
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
await writer.WriteAsync(new string('a', byteLength));
// Act
await writer.FlushAsync();
// Assert
Assert.Equal(1, stream.FlushAsyncCallCount);
Assert.Equal(byteLength, stream.Length);
}
public async Task FlushesBuffer_ButNotStream_OnFlushAsync(int byteLength)
{
// Arrange
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
await writer.WriteAsync(new string('a', byteLength));
var expectedWriteCount = Math.Ceiling((double)byteLength / HttpResponseStreamWriter.DefaultBufferSize);
// Act
await writer.FlushAsync();
// Assert
Assert.Equal(0, stream.FlushAsyncCallCount);
Assert.Equal(expectedWriteCount, stream.WriteAsyncCallCount);
Assert.Equal(byteLength, stream.Length);
}
public async Task FlushesBuffer_ButNotStream_OnFlushAsync(int byteLength)
{
// Arrange
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
await writer.WriteAsync(new string('a', byteLength));
var expectedWriteCount = Math.Ceiling((double)byteLength / HttpResponseStreamWriter.DefaultBufferSize);
// Act
await writer.FlushAsync();
// Assert
Assert.Equal(0, stream.FlushAsyncCallCount);
Assert.Equal(expectedWriteCount, stream.WriteAsyncCallCount);
Assert.Equal(byteLength, stream.Length);
}
public async Task NoDataWritten_FlushAsync_DoesNotFlushUnderlyingStream()
{
// Arrange
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
// Act
await writer.FlushAsync();
// Assert
Assert.Equal(0, stream.FlushAsyncCallCount);
Assert.Equal(0, stream.Length);
}
public async Task FlushesBuffer_OnFlushAsync(int byteLength)
{
// Arrange
var stream = new TestMemoryStream();
var writer = new HttpResponseStreamWriter(stream, Encoding.UTF8);
await writer.WriteAsync(new string('a', byteLength));
// Act
await writer.FlushAsync();
// Assert
Assert.Equal(1, stream.FlushAsyncCallCount);
Assert.Equal(byteLength, stream.Length);
}