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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using Xunit;
namespace Microsoft.AspNetCore.Routing.Matching
{
public class FastPathTokenizerTest
{
// Generally this will only happen in tests when the HttpContext hasn't been
// initialized. We still don't want to crash in this case.
[Fact]
public void Tokenize_EmptyString()
{
// Arrange
Span<PathSegment> segments = stackalloc PathSegment[1];
// Act
var count = FastPathTokenizer.Tokenize("", segments);
// Assert
Assert.Equal(0, count);
}
[Fact]
public void Tokenize_RootPath()
{
// Arrange
Span<PathSegment> segments = stackalloc PathSegment[1];
// Act
var count = FastPathTokenizer.Tokenize("/", segments);
// Assert
Assert.Equal(0, count);
}
[Fact]
public void Tokenize_SingleSegment()
{
// Arrange
Span<PathSegment> segments = stackalloc PathSegment[1];
// Act
var count = FastPathTokenizer.Tokenize("/abc", segments);
// Assert
Assert.Equal(1, count);
Assert.Equal(new PathSegment(1, 3), segments[0]);
}
[Fact]
public void Tokenize_WithSomeSegments()
{
// Arrange
Span<PathSegment> segments = stackalloc PathSegment[3];
// Act
var count = FastPathTokenizer.Tokenize("/a/b/c", segments);
// Assert
Assert.Equal(3, count);
Assert.Equal(new PathSegment(1, 1), segments[0]);
Assert.Equal(new PathSegment(3, 1), segments[1]);
Assert.Equal(new PathSegment(5, 1), segments[2]);
}
[Fact] // Empty trailing / is ignored
public void Tokenize_WithSomeSegments_TrailingSlash()
{
// Arrange
Span<PathSegment> segments = stackalloc PathSegment[3];
// Act
var count = FastPathTokenizer.Tokenize("/a/b/c/", segments);
// Assert
Assert.Equal(3, count);
Assert.Equal(new PathSegment(1, 1), segments[0]);
Assert.Equal(new PathSegment(3, 1), segments[1]);
Assert.Equal(new PathSegment(5, 1), segments[2]);
}
[Fact]
public void Tokenize_LongerSegments()
{
// Arrange
Span<PathSegment> segments = stackalloc PathSegment[3];
// Act
var count = FastPathTokenizer.Tokenize("/aaa/bb/ccccc", segments);
// Assert
Assert.Equal(3, count);
Assert.Equal(new PathSegment(1, 3), segments[0]);
Assert.Equal(new PathSegment(5, 2), segments[1]);
Assert.Equal(new PathSegment(8, 5), segments[2]);
}
[Fact]
public void Tokenize_EmptySegments()
{
// Arrange
Span<PathSegment> segments = stackalloc PathSegment[3];
// Act
var count = FastPathTokenizer.Tokenize("///c", segments);
// Assert
Assert.Equal(3, count);
Assert.Equal(new PathSegment(1, 0), segments[0]);
Assert.Equal(new PathSegment(2, 0), segments[1]);
Assert.Equal(new PathSegment(3, 1), segments[2]);
}
[Fact]
public void Tokenize_TooManySegments()
{
// Arrange
Span<PathSegment> segments = stackalloc PathSegment[3];
// Act
var count = FastPathTokenizer.Tokenize("/a/b/c/d", segments);
// Assert
Assert.Equal(3, count);
Assert.Equal(new PathSegment(1, 1), segments[0]);
Assert.Equal(new PathSegment(3, 1), segments[1]);
Assert.Equal(new PathSegment(5, 1), segments[2]);
}
}
}
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