feat: initial commit

dotnet/MaigoLabs.NeedLe.Tests/Common/CommonNormalizationTests.cs

@@ -0,0 +1,126 @@
+using MaigoLabs.NeedLe.Common;
+
+namespace MaigoLabs.NeedLe.Tests.Common;
+
+#region ToKatakana
+
+public sealed class ToKatakana_ConvertsHiraganaToKatakanaTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal("アイウエオ", CommonNormalization.ToKatakana("あいうえお"));
+        Assert.Equal("カキクケコ", CommonNormalization.ToKatakana("かきくけこ"));
+        Assert.Equal("サシスセソ", CommonNormalization.ToKatakana("さしすせそ"));
+    }
+}
+
+public sealed class ToKatakana_KeepsKatakanaUnchangedTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal("アイウエオ", CommonNormalization.ToKatakana("アイウエオ"));
+    }
+}
+
+public sealed class ToKatakana_KeepsNonKanaUnchangedTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal("abc123", CommonNormalization.ToKatakana("abc123"));
+        Assert.Equal("漢字", CommonNormalization.ToKatakana("漢字"));
+    }
+}
+
+public sealed class ToKatakana_HandlesMixedInputTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal("アアa漢", CommonNormalization.ToKatakana("あアa漢"));
+    }
+}
+
+#endregion
+
+#region NormalizeCodePoint
+
+public sealed class NormalizeCodePoint_ConvertsFullwidthAsciiToHalfwidthLowercaseTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal('a', CommonNormalization.NormalizeCodePoint('Ａ'));
+        Assert.Equal('b', CommonNormalization.NormalizeCodePoint('Ｂ'));
+        Assert.Equal('c', CommonNormalization.NormalizeCodePoint('Ｃ'));
+        Assert.Equal('1', CommonNormalization.NormalizeCodePoint('１'));
+        Assert.Equal('2', CommonNormalization.NormalizeCodePoint('２'));
+        Assert.Equal('3', CommonNormalization.NormalizeCodePoint('３'));
+        Assert.Equal('!', CommonNormalization.NormalizeCodePoint('！'));
+    }
+}
+
+public sealed class NormalizeCodePoint_ConvertsFullwidthSpaceToHalfwidthTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal(' ', CommonNormalization.NormalizeCodePoint('　'));
+    }
+}
+
+public sealed class NormalizeCodePoint_ConvertsHalfwidthKanaToFullwidthTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal('ア', CommonNormalization.NormalizeCodePoint('ｱ'));
+        Assert.Equal('イ', CommonNormalization.NormalizeCodePoint('ｲ'));
+        Assert.Equal('ウ', CommonNormalization.NormalizeCodePoint('ｳ'));
+        Assert.Equal('エ', CommonNormalization.NormalizeCodePoint('ｴ'));
+        Assert.Equal('オ', CommonNormalization.NormalizeCodePoint('ｵ'));
+        Assert.Equal('カ', CommonNormalization.NormalizeCodePoint('ｶ'));
+    }
+}
+
+public sealed class NormalizeCodePoint_NormalizesVoicedSoundMarksTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal(0x3099, CommonNormalization.NormalizeCodePoint('ﾞ')); // halfwidth voiced -> combining
+        Assert.Equal(0x309A, CommonNormalization.NormalizeCodePoint('ﾟ')); // halfwidth semi-voiced -> combining
+        Assert.Equal(0x3099, CommonNormalization.NormalizeCodePoint('゛')); // fullwidth voiced -> combining
+        Assert.Equal(0x309A, CommonNormalization.NormalizeCodePoint('゜')); // fullwidth semi-voiced -> combining
+    }
+}
+
+public sealed class NormalizeCodePoint_ConvertsHalfwidthPunctuationToFullwidthTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal('。', CommonNormalization.NormalizeCodePoint('｡'));
+        Assert.Equal('「', CommonNormalization.NormalizeCodePoint('｢'));
+        Assert.Equal('」', CommonNormalization.NormalizeCodePoint('｣'));
+        Assert.Equal('、', CommonNormalization.NormalizeCodePoint('､'));
+        Assert.Equal('・', CommonNormalization.NormalizeCodePoint('･'));
+    }
+}
+
+public sealed class NormalizeCodePoint_LowercasesRegularAsciiTest : NeedleTestBase
+{
+    [Fact]
+    public void Execute()
+    {
+        Assert.Equal('a', CommonNormalization.NormalizeCodePoint('A'));
+        Assert.Equal('b', CommonNormalization.NormalizeCodePoint('B'));
+        Assert.Equal('c', CommonNormalization.NormalizeCodePoint('C'));
+    }
+}
+
+#endregion
+
+