77 lines
2.0 KiB
C#
77 lines
2.0 KiB
C#
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using YKanBan.Models;
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namespace YKanBan.Tests.Models;
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/// <summary>
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/// Tests for the RGB color value type: component storage and the text
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/// boundary in both directions.
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/// </summary>
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[TestClass]
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public class RgbColorTests
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{
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[TestMethod]
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public void ParseSplitsComponents()
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{
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RgbColor color = RgbColor.Parse("#102030");
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Assert.AreEqual((byte)0x10, color.R);
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Assert.AreEqual((byte)0x20, color.G);
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Assert.AreEqual((byte)0x30, color.B);
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}
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[TestMethod]
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[DataRow("#a1B2c3")]
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[DataRow("#A1B2C3")]
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[DataRow("#a1b2c3")]
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public void ParseIsCaseInsensitive(string text)
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{
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Assert.AreEqual(new RgbColor(0xA1, 0xB2, 0xC3), RgbColor.Parse(text));
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}
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[TestMethod]
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[DataRow("")]
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[DataRow("112233")]
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[DataRow("#11223")]
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[DataRow("#1122334")]
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[DataRow("#GGGGGG")]
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[DataRow("#12345g")]
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[DataRow(" #112233")]
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[DataRow("#112233 ")]
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public void ParseRejectsMalformedText(string text)
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{
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Assert.ThrowsExactly<FormatException>(() => RgbColor.Parse(text));
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}
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[TestMethod]
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public void TryParseRejectsNull()
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{
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Assert.IsFalse(RgbColor.TryParse(null, out RgbColor color));
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Assert.AreEqual(default, color);
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}
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[TestMethod]
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public void TryParseAcceptsValidText()
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{
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Assert.IsTrue(RgbColor.TryParse("#010203", out RgbColor color));
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Assert.AreEqual(new RgbColor(1, 2, 3), color);
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}
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[TestMethod]
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public void ToStringUsesCanonicalLowercase()
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{
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Assert.AreEqual("#ff0a00", new RgbColor(0xFF, 0x0A, 0x00).ToString());
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}
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[TestMethod]
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public void TextRoundTrips()
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{
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var color = new RgbColor(0x12, 0xAB, 0xCD);
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Assert.AreEqual(color, RgbColor.Parse(color.ToString()));
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}
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[TestMethod]
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public void EqualityComparesComponents()
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{
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Assert.AreEqual(new RgbColor(1, 2, 3), new RgbColor(1, 2, 3));
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Assert.AreNotEqual(new RgbColor(1, 2, 3), new RgbColor(1, 2, 4));
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}
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}
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