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fc818b0274
* Fixes #4382. StringExtensions.GetColumns method should only return the total text width and not the sum of all runes width * Trying to fix unit test error * Update StringExtensions.cs Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Add unit test to prove that null and empty string doesn't not throws anything. --------- Co-authored-by: Tig <tig@users.noreply.github.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
83 lines
2.7 KiB
C#
83 lines
2.7 KiB
C#
namespace UnitTests_Parallelizable.TextTests;
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#nullable enable
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public class StringTests
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{
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[Fact]
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public void TestGetColumns_Empty ()
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{
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var str = string.Empty;
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Assert.Equal (0, str.GetColumns ());
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}
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[Theory]
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[InlineData ("a", 1)]
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[InlineData ("á", 1)]
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[InlineData ("ab", 2)]
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[InlineData ("áé", 2)]
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[InlineData ("abc", 3)]
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[InlineData ("áéí", 3)]
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[InlineData ("abcd", 4)]
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public void TestGetColumns_MultiRune (string str, int expected) { Assert.Equal (expected, str.GetColumns ()); }
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// Test non-BMP codepoints
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// Face with Tears of Joy Emoji (😂), Unicode U+1F602 is 2 columns wide
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[Theory]
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[InlineData ("😂", 2)]
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[InlineData ("😂😂", 4)]
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public void TestGetColumns_MultiRune_NonBMP (string str, int expected) { Assert.Equal (expected, str.GetColumns ()); }
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// Test known wide codepoints
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[Theory]
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[InlineData ("🙂", 2)]
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[InlineData ("a🙂", 3)]
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[InlineData ("🙂a", 3)]
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[InlineData ("👨👩👦👦", 2)]
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[InlineData ("👨👩👦👦🙂", 4)]
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[InlineData ("👨👩👦👦🙂a", 5)]
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[InlineData ("👨👩👦👦a🙂", 5)]
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[InlineData ("👨👩👦👦👨👩👦👦", 4)]
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[InlineData ("山", 2)] // The character for "mountain" in Chinese/Japanese/Korean (山), Unicode U+5C71
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[InlineData ("山🙂", 4)] // The character for "mountain" in Chinese/Japanese/Korean (山), Unicode U+5C71
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//[InlineData ("\ufe20\ufe21", 2)] // Combining Ligature Left Half ︠ - U+fe20 -https://github.com/microsoft/terminal/blob/main/src/types/unicode_width_overrides.xml
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// // Combining Ligature Right Half - U+fe21 -https://github.com/microsoft/terminal/blob/main/src/types/unicode_width_overrides.xml
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public void TestGetColumns_MultiRune_WideBMP (string str, int expected) { Assert.Equal (expected, str.GetColumns ()); }
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[Fact]
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public void TestGetColumns_Null ()
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{
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string? str = null;
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Assert.Equal (0, str!.GetColumns ());
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}
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[Fact]
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public void TestGetColumns_SingleRune ()
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{
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var str = "a";
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Assert.Equal (1, str.GetColumns ());
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}
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[Fact]
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public void TestGetColumns_Zero_Width ()
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{
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var str = "\u200D";
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Assert.Equal (0, str.GetColumns ());
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}
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[Theory]
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[InlineData (null)]
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[InlineData ("")]
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public void TestGetColumns_Does_Not_Throws_With_Null_And_Empty_String (string? text)
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{
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if (text is null)
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{
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Assert.Equal (0, StringExtensions.GetColumns (text!));
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}
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else
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{
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Assert.Equal (0, text.GetColumns ());
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}
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}
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}
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