77 lines
2.3 KiB
C#
77 lines
2.3 KiB
C#
using System.Globalization;
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using CursorLang.Models;
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namespace CursorLang.Tests.Models;
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public sealed class KeyboardLayoutTests
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{
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[Theory]
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[InlineData(0x0409, "EN")]
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[InlineData(0x0419, "RU")]
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[InlineData(0x040C, "FR")]
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[InlineData(0x0407, "DE")]
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public void The_short_name_comes_from_the_language_code(int localeId, string expected)
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{
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KeyboardLayout layout = KeyboardLayout.FromLocaleId(localeId);
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Assert.Equal(expected, layout.ShortName);
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Assert.Equal(localeId, layout.LocaleId);
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}
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[Fact]
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public void The_full_name_joins_the_short_name_and_the_native_language_name()
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{
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KeyboardLayout layout = KeyboardLayout.FromLocaleId(0x0419);
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Assert.Equal($"RU — {new CultureInfo(0x0419).NativeName}", layout.DisplayName);
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}
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// A layout may belong to a language the system does not know — that is not an error
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[Fact]
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public void An_unknown_locale_is_shown_by_its_own_code()
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{
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int unknown = FindUnknownLocaleId();
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KeyboardLayout layout = KeyboardLayout.FromLocaleId(unknown);
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string expected = $"0x{unknown:X4}";
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Assert.Equal(expected, layout.ShortName);
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Assert.Equal(expected, layout.DisplayName);
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}
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[Fact]
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public void Layouts_of_the_same_locale_are_equal()
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{
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Assert.Equal(KeyboardLayout.FromLocaleId(0x0409), KeyboardLayout.FromLocaleId(0x0409));
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Assert.NotEqual(KeyboardLayout.FromLocaleId(0x0409), KeyboardLayout.FromLocaleId(0x0419));
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}
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[Fact]
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public void A_layout_can_also_be_built_directly()
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{
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var layout = new KeyboardLayout(1, "XX", "XX — language");
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Assert.Equal(1, layout.LocaleId);
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Assert.Equal("XX", layout.ShortName);
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Assert.Equal("XX — language", layout.DisplayName);
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}
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// An identifier with no culture behind it in Windows
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private static int FindUnknownLocaleId()
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{
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for (int candidate = 0x1000; candidate <= 0xFFFF; candidate++)
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{
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try
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{
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_ = new CultureInfo(candidate);
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}
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catch (CultureNotFoundException)
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{
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return candidate;
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}
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}
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throw new InvalidOperationException("The system knows every locale identifier");
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}
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}
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