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Copy pathStringBuilderTextObjectExtensionsTests.cs
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77 lines (64 loc) · 4.05 KB
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using Microsoft.PowerShell;
using System.Text;
using Xunit;
namespace Test
{
public sealed class StringBuilderTextObjectExtensionsTests
{
[Fact]
public void StringBuilderTextObjectExtensions_ViFindBeginningOfWordObjectBoundary()
{
const string wordDelimiters = PSConsoleReadLineOptions.DefaultWordDelimiters;
var buffer = new StringBuilder("Hello, world!\ncruel world.\none\n\n\n\n\ntwo\n three four.");
Assert.Equal(0, buffer.ViFindBeginningOfWordObjectBoundary(1, wordDelimiters));
}
[Fact]
public void StringBuilderTextObjectExtensions_ViFindBeginningOfWordObjectBoundary_whitespace()
{
const string wordDelimiters = PSConsoleReadLineOptions.DefaultWordDelimiters;
var buffer = new StringBuilder("Hello, world!");
Assert.Equal(6, buffer.ViFindBeginningOfWordObjectBoundary(7, wordDelimiters));
}
[Fact]
public void StringBuilderTextObjectExtensions_ViFindBeginningOfWordObjectBoundary_backwards()
{
const string wordDelimiters = PSConsoleReadLineOptions.DefaultWordDelimiters;
var buffer = new StringBuilder("Hello!\nworld!");
Assert.Equal(5, buffer.ViFindBeginningOfWordObjectBoundary(6, wordDelimiters));
}
[Fact]
public void StringBuilderTextObjectExtensions_ViFindBeginningOfWordObjectBoundary_end_of_buffer()
{
const string wordDelimiters = PSConsoleReadLineOptions.DefaultWordDelimiters;
var buffer = new StringBuilder("Hello, world!");
Assert.Equal(12, buffer.ViFindBeginningOfWordObjectBoundary(buffer.Length, wordDelimiters));
}
[Fact]
public void StringBuilderTextObjectExtensions_ViFindBeginningOfNextWordObjectBoundary()
{
const string wordDelimiters = PSConsoleReadLineOptions.DefaultWordDelimiters;
var buffer = new StringBuilder("Hello, world!\ncruel world.\none\n\n\n\n\ntwo\n three four.");
// Words |Hello|,| |world|!|\n|cruel |world|.|\n|one\n\n|\n\n|\n|two|\n |three| |four|.|
// Pos 01234 5 6 78901 2 _3 456789 01234 5 _6 789_0_1 _2_3 _4 567 _89 01234 5 6789 0
// Pos 0 1 2 3 4 5
// system under test
Assert.Equal(5, buffer.ViFindBeginningOfNextWordObjectBoundary(0, wordDelimiters));
Assert.Equal(6, buffer.ViFindBeginningOfNextWordObjectBoundary(5, wordDelimiters));
Assert.Equal(7, buffer.ViFindBeginningOfNextWordObjectBoundary(6, wordDelimiters));
Assert.Equal(12, buffer.ViFindBeginningOfNextWordObjectBoundary(7, wordDelimiters));
Assert.Equal(13, buffer.ViFindBeginningOfNextWordObjectBoundary(12, wordDelimiters));
Assert.Equal(19, buffer.ViFindBeginningOfNextWordObjectBoundary(13, wordDelimiters));
Assert.Equal(20, buffer.ViFindBeginningOfNextWordObjectBoundary(19, wordDelimiters));
Assert.Equal(25, buffer.ViFindBeginningOfNextWordObjectBoundary(20, wordDelimiters));
Assert.Equal(26, buffer.ViFindBeginningOfNextWordObjectBoundary(25, wordDelimiters));
Assert.Equal(30, buffer.ViFindBeginningOfNextWordObjectBoundary(26, wordDelimiters));
Assert.Equal(32, buffer.ViFindBeginningOfNextWordObjectBoundary(30, wordDelimiters));
Assert.Equal(34, buffer.ViFindBeginningOfNextWordObjectBoundary(32, wordDelimiters));
Assert.Equal(38, buffer.ViFindBeginningOfNextWordObjectBoundary(34, wordDelimiters));
Assert.Equal(40, buffer.ViFindBeginningOfNextWordObjectBoundary(38, wordDelimiters));
Assert.Equal(45, buffer.ViFindBeginningOfNextWordObjectBoundary(40, wordDelimiters));
Assert.Equal(46, buffer.ViFindBeginningOfNextWordObjectBoundary(45, wordDelimiters));
Assert.Equal(50, buffer.ViFindBeginningOfNextWordObjectBoundary(46, wordDelimiters));
}
}
}