public void Append_CreatesNewSegments_WhenCurrentSegmentIsFull()
{
// Arrange
var buffer = new ViewBuffer(new TestViewBufferScope(), "some-name");
var expected = Enumerable.Range(0, TestViewBufferScope.DefaultBufferSize).Select(i => i.ToString());
// Act
foreach (var item in expected)
{
buffer.Append(item);
}
buffer.Append("Hello");
buffer.Append("world");
// Assert
Assert.Equal(2, buffer.CurrentCount);
Assert.Collection(buffer.BufferSegments,
segment => Assert.Equal(expected, segment.Select(v => v.Value)),
segment =>
{
var array = segment;
Assert.Equal("Hello", array[0].Value);
Assert.Equal("world", array[1].Value);
});
}
public void Append_AddsStringRazorValue()
{
// Arrange
var buffer = new ViewBuffer(new TestViewBufferScope(), "some-name");
// Act
buffer.Append("Hello world");
// Assert
var segment = Assert.Single(buffer.BufferSegments);
Assert.Equal(1, buffer.CurrentCount);
Assert.Equal("Hello world", segment[0].Value);
}
public void Clear_ResetsBackingBufferAndIndex(int valuesToWrite)
{
// Arrange
var buffer = new ViewBuffer(new TestViewBufferScope(), "some-name");
// Act
for (var i = 0; i < valuesToWrite; i++)
{
buffer.Append("Hello");
}
buffer.Clear();
buffer.Append("world");
// Assert
var segment = Assert.Single(buffer.BufferSegments);
Assert.Equal(1, buffer.CurrentCount);
Assert.Equal("world", segment[0].Value);
}
public async Task WriteToAsync_WritesRazorValues_ToTextWriter()
{
// Arrange
var buffer = new ViewBuffer(new TestViewBufferScope(), "some-name");
var writer = new StringWriter();
// Act
buffer.Append("Hello");
buffer.AppendHtml(new HtmlString(" world"));
buffer.AppendHtml(" 123");
await buffer.WriteToAsync(writer, new HtmlTestEncoder());
// Assert
Assert.Equal("Hello world 123", writer.ToString());
}
public async Task WriteToAsync_WritesSelf_WhenWriterIsHtmlTextWriter()
{
// Arrange
var buffer = new ViewBuffer(new TestViewBufferScope(), "some-name");
var htmlWriter = new Mock<HtmlTextWriter>();
htmlWriter.Setup(w => w.Write(buffer)).Verifiable();
// Act
buffer.Append("Hello world");
await buffer.WriteToAsync(htmlWriter.Object, new HtmlTestEncoder());
// Assert
htmlWriter.Verify();
}