public void ReadingAtWithExplicitBuffer()
{
var buffer = new ConsoleInputBuffer();
buffer.Insert("abcd");
var outBuffer = new char[4];
buffer.ReadAt(0, outBuffer, 0, 2);
outBuffer[0].Should().Be('a');
outBuffer[1].Should().Be('b');
buffer.ReadAt(2, outBuffer, 0, 2);
outBuffer[0].Should().Be('c');
outBuffer[1].Should().Be('d');
outBuffer[0] = 'x';
buffer.ReadAt(0, outBuffer, 1, 1);
outBuffer[0].Should().Be('x');
outBuffer[1].Should().Be('a');
buffer.Invoking(b => b.ReadAt(0, null, 0, 2)).Should().Throw <ArgumentNullException>();
buffer.Invoking(b => b.ReadAt(2, outBuffer, 0, 4)).Should().Throw <ArgumentException>();
buffer.Invoking(b => b.ReadAt(2, outBuffer, 3, 2)).Should().Throw <ArgumentException>();
}
public void ReadingAt()
{
var buffer = new ConsoleInputBuffer();
buffer.Insert("abcd");
buffer.ReadAt(0, 2).Should().Equal('a', 'b');
buffer.ReadAt(2, 2).Should().Equal('c', 'd');
buffer.Invoking(b => b.ReadAt(2, 4)).Should().Throw <ArgumentException>();
buffer.Invoking(b => b.ReadAt(3, 2)).Should().Throw <ArgumentException>();
}
public void ReadingAt()
{
var buffer = new ConsoleInputBuffer();
buffer.Insert("abcd");
buffer.ReadAt(0, 2).Should().ContainInOrder('a', 'b');
buffer.ReadAt(2, 2).Should().ContainInOrder('c', 'd');
((Action)(() => buffer.ReadAt(2, 4))).ShouldThrow <ArgumentException>();
((Action)(() => buffer.ReadAt(3, 2))).ShouldThrow <ArgumentException>();
}