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Code Issues

test: cover Span<char> overloads of CountSubstring

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Oliver Booth 2023-03-30 21:22:45 +01:00
parent f360311d9c
commit 4c62367303
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1 changed files with 33 additions and 9 deletions
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42
X10D.Tests/src/Text/CharSpanTests.cs
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@ -9,25 +9,49 @@ public class CharSpanTests
[TestMethod] [TestMethod]
public void CountSubstring_ShouldHonor_StringComparison() public void CountSubstring_ShouldHonor_StringComparison()
{ {
Assert.AreEqual(0, "Hello World".AsSpan().CountSubstring('E')); var readOnlySpan = "Hello World".AsSpan();
Assert.AreEqual(0, "Hello World".AsSpan().CountSubstring("E".AsSpan())); Span<char> span = stackalloc char[readOnlySpan.Length];
Assert.AreEqual(1, "Hello World".AsSpan().CountSubstring("E".AsSpan(), StringComparison.OrdinalIgnoreCase)); readOnlySpan.CopyTo(span);
Assert.AreEqual(0, readOnlySpan.CountSubstring('E'));
Assert.AreEqual(0, readOnlySpan.CountSubstring("E".AsSpan()));
Assert.AreEqual(1, readOnlySpan.CountSubstring("E".AsSpan(), StringComparison.OrdinalIgnoreCase));
Assert.AreEqual(0, span.CountSubstring('E'));
Assert.AreEqual(0, span.CountSubstring("E".AsSpan()));
Assert.AreEqual(1, span.CountSubstring("E".AsSpan(), StringComparison.OrdinalIgnoreCase));
} }
[TestMethod] [TestMethod]
public void CountSubstring_ShouldReturn0_GivenNoInstanceChar() public void CountSubstring_ShouldReturn0_GivenNoInstanceChar()
{ {
Assert.AreEqual(0, "Hello World".AsSpan().CountSubstring('z')); var readOnlySpan = "Hello World".AsSpan();
Assert.AreEqual(0, "Hello World".AsSpan().CountSubstring("z".AsSpan())); Span<char> span = stackalloc char[readOnlySpan.Length];
Assert.AreEqual(0, "Hello World".AsSpan().CountSubstring("z".AsSpan(), StringComparison.OrdinalIgnoreCase)); readOnlySpan.CopyTo(span);
Assert.AreEqual(0, readOnlySpan.CountSubstring('z'));
Assert.AreEqual(0, readOnlySpan.CountSubstring("z".AsSpan()));
Assert.AreEqual(0, readOnlySpan.CountSubstring("z".AsSpan(), StringComparison.OrdinalIgnoreCase));
Assert.AreEqual(0, span.CountSubstring('z'));
Assert.AreEqual(0, span.CountSubstring("z".AsSpan()));
Assert.AreEqual(0, span.CountSubstring("z".AsSpan(), StringComparison.OrdinalIgnoreCase));
} }
[TestMethod] [TestMethod]
public void CountSubstring_ShouldReturn1_GivenSingleInstanceChar() public void CountSubstring_ShouldReturn1_GivenSingleInstanceChar()
{ {
Assert.AreEqual(1, "Hello World".AsSpan().CountSubstring('e')); var readOnlySpan = "Hello World".AsSpan();
Assert.AreEqual(1, "Hello World".AsSpan().CountSubstring("e".AsSpan())); Span<char> span = stackalloc char[readOnlySpan.Length];
Assert.AreEqual(1, "Hello World".AsSpan().CountSubstring("e".AsSpan(), StringComparison.OrdinalIgnoreCase)); readOnlySpan.CopyTo(span);
Assert.AreEqual(1, readOnlySpan.CountSubstring('e'));
Assert.AreEqual(1, readOnlySpan.CountSubstring("e".AsSpan()));
Assert.AreEqual(1, readOnlySpan.CountSubstring("e".AsSpan(), StringComparison.OrdinalIgnoreCase));
Assert.AreEqual(1, span.CountSubstring('e'));
Assert.AreEqual(1, span.CountSubstring("e".AsSpan()));
Assert.AreEqual(1, span.CountSubstring("e".AsSpan(), StringComparison.OrdinalIgnoreCase));
} }
[TestMethod] [TestMethod]