public static void NullInputsInConstructor_ExpectArgumentNullException(Stream stream, Encoding encoding, ArrayPool <byte> bytePool, ArrayPool <char> charPool)
{
Assert.Throws <ArgumentNullException>(() =>
{
var httpRequestStreamReader = new HttpRequestStreamReader(stream, encoding, 1, bytePool, charPool);
});
}
public static void NegativeOrZeroBufferSize_ExpectArgumentOutOfRangeException(int size)
{
Assert.Throws <ArgumentOutOfRangeException>(() =>
{
var httpRequestStreamReader = new HttpRequestStreamReader(new MemoryStream(), Encoding.UTF8, size, ArrayPool <byte> .Shared, ArrayPool <char> .Shared);
});
}
public static async Task ReadLine_CarriageReturnAndLineFeedAcrossBufferBundaries(Func <HttpRequestStreamReader, Task <string> > action)
{
// Arrange
var stream = new MemoryStream();
var writer = new StreamWriter(stream);
writer.Write("123456789\r\nfoo");
writer.Flush();
stream.Position = 0;
var reader = new HttpRequestStreamReader(stream, Encoding.UTF8, 10);
// Act & Assert
var data = await action(reader);
Assert.Equal("123456789", data);
data = await action(reader);
Assert.Equal("foo", data);
var eof = await action(reader);
Assert.Null(eof);
}
public static async Task StreamDisposed_ExpectObjectDisposedExceptionAsync(Func <HttpRequestStreamReader, Task> action)
{
var httpRequestStreamReader = new HttpRequestStreamReader(new MemoryStream(), Encoding.UTF8, 10, ArrayPool <byte> .Shared, ArrayPool <char> .Shared);
httpRequestStreamReader.Dispose();
await Assert.ThrowsAsync <ObjectDisposedException>(() => action(httpRequestStreamReader));
}
public static async Task ReadToEndAsync()
{
// Arrange
var reader = new HttpRequestStreamReader(GetLargeStream(), Encoding.UTF8);
var result = await reader.ReadToEndAsync();
Assert.Equal(5000, result.Length);
}
public static void StreamCannotRead_ExpectArgumentException()
{
var mockStream = new Mock <Stream>();
mockStream.Setup(m => m.CanRead).Returns(false);
Assert.Throws <ArgumentException>(() =>
{
var httpRequestStreamReader = new HttpRequestStreamReader(mockStream.Object, Encoding.UTF8, 1, ArrayPool <byte> .Shared, ArrayPool <char> .Shared);
});
}
public static void StreamDisposed_ExpectedObjectDisposedException(Action <HttpRequestStreamReader> action)
{
var httpRequestStreamReader = new HttpRequestStreamReader(new MemoryStream(), Encoding.UTF8, 10, ArrayPool <byte> .Shared, ArrayPool <char> .Shared);
httpRequestStreamReader.Dispose();
Assert.Throws <ObjectDisposedException>(() =>
{
action(httpRequestStreamReader);
});
}
public static async Task ReadLine_EOF(Func <HttpRequestStreamReader, Task <string> > action)
{
// Arrange
var stream = new MemoryStream();
var reader = new HttpRequestStreamReader(stream, Encoding.UTF8);
// Act & Assert
var eof = await action(reader);
Assert.Null(eof);
}
public static async Task StreamDisposed_ExpectObjectDisposedExceptionAsync()
{
var httpRequestStreamReader = new HttpRequestStreamReader(new MemoryStream(), Encoding.UTF8, 10, ArrayPool <byte> .Shared, ArrayPool <char> .Shared);
httpRequestStreamReader.Dispose();
await Assert.ThrowsAsync <ObjectDisposedException>(() =>
{
return(httpRequestStreamReader.ReadAsync(new char[10], 0, 1));
});
}
public static void EmptyStream()
{
// Arrange
var reader = new HttpRequestStreamReader(new MemoryStream(), Encoding.UTF8);
var buffer = new char[10];
// Act
var read = reader.Read(buffer, 0, 1);
// Assert
Assert.Equal(0, read);
}
public static async Task ReadToEndAsync_Reads_Asynchronously()
{
// Arrange
var stream = new AsyncOnlyStreamWrapper(GetLargeStream());
var reader = new HttpRequestStreamReader(stream, Encoding.UTF8);
var streamReader = new StreamReader(GetLargeStream());
string expected = await streamReader.ReadToEndAsync();
// Act
var actual = await reader.ReadToEndAsync();
// Assert
Assert.Equal(expected, actual);
}
public static async Task ReadLine_NewLineOnly(Func <HttpRequestStreamReader, Task <string> > action)
{
// Arrange
var stream = new MemoryStream();
var writer = new StreamWriter(stream);
writer.Write("\r\n");
writer.Flush();
stream.Position = 0;
var reader = new HttpRequestStreamReader(stream, Encoding.UTF8);
// Act & Assert
var empty = await action(reader);
Assert.Equal(string.Empty, empty);
}
public static async Task ReadLine_MultipleContinuousLines(Func <HttpRequestStreamReader, Task <string> > action)
{
// Arrange
var stream = new MemoryStream();
var writer = new StreamWriter(stream);
writer.Write("\n\n\r\r\n\r");
writer.Flush();
stream.Position = 0;
var reader = new HttpRequestStreamReader(stream, Encoding.UTF8);
// Act & Assert
for (var i = 0; i < 5; i++)
{
var data = await action(reader);
Assert.Equal(string.Empty, data);
}
var eof = await action(reader);
Assert.Null(eof);
}
public static async Task ReadLineAsync_MultipleContinuousLines()
{
// Arrange
var stream = new MemoryStream();
var writer = new StreamWriter(stream);
writer.Write("\n\n\r\r\n");
writer.Flush();
stream.Position = 0;
var reader = new HttpRequestStreamReader(stream, Encoding.UTF8);
// Act & Assert
for (var i = 0; i < 4; i++)
{
var data = await reader.ReadLineAsync();
Assert.Equal(string.Empty, data);
}
var eol = await reader.ReadLineAsync();
Assert.Null(eol);
}