using System.Text;

using Microsoft.PowerShell;

using Xunit;

namespace Test

{

public sealed class StringBuilderLinewiseExtensionsTests

{

[Fact]

public void StringBuilderLinewiseExtensions_LinewiseYank_Fragment()

{

var buffer = new StringBuilder("line1\nline2");

// system under test

var range = buffer.GetRange(1, 42);

// assert

Assert.Equal(5, range.Offset);

Assert.Equal(6, range.Count);

}

[Fact]

public void StringBuilderLinewiseExtensions_LinewiseYank_Line()

{

var buffer = new StringBuilder("line1\nline2\n");

// system under test

var range = buffer.GetRange(1, 42);

// assert

Assert.Equal(5, range.Offset);

Assert.Equal(7, range.Count);

}

[Fact]

public void StringBuilderLinewiseExtensions_LinewiseYank_Lines()

{

var buffer = new StringBuilder("line1\nline2\nline3\nline4");

// system under test

var range = buffer.GetRange(1, 2);

// assert

Assert.Equal(5, range.Offset);

Assert.Equal(12, range.Count);

}

}

}