public void AddNegativeLookbehindAssertionTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
// Act
regexGenerator.AddNegativeLookbehindAssertion(@"a");
// Assert
Assert.Equal(@"(?<!a)", regexGenerator.ToString());
}
public void AddUnicodeCategoryByStringTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
// Act
regexGenerator.AddUnicodeCategory("L");
// Assert
Assert.Equal(@"\p{L}", regexGenerator.ToString());
}
public void AddAtomicGroupTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
// Act
regexGenerator.AddAtomicGroup(@"a");
// Assert
Assert.Equal(@"(?>a)", regexGenerator.ToString());
}
public void AddNamedCapturingGroupTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
// Act
regexGenerator.AddGroup(@"a", name: "a");
// Assert
Assert.Equal(@"(?<a>a)", regexGenerator.ToString());
}
public void AddConditionalTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
// Act
regexGenerator.AddConditional(@"a", "b", "c");
// Assert
Assert.Equal(@"(?(?=a)b|c)", regexGenerator.ToString());
}
public void AddPositiveLookaheadAssertionTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
// Act
regexGenerator.AddPositiveLookaheadAssertion(@"a");
// Assert
Assert.Equal(@"(?=a)", regexGenerator.ToString());
}
public void AddNodeTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
// Act
regexGenerator.Add(@"a");
// Assert
Assert.Equal(@"a", regexGenerator.ToString());
}
public void AddNonCapturingGroupTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
// Act
regexGenerator.AddGroup(@"a", capturing: false);
// Assert
Assert.Equal(@"(?:a)", regexGenerator.ToString());
}
public void SimpleAddNestedNodeTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
var node = new RegexNode(@"a");
// Act
regexGenerator.AddGroup(node);
// Assert
Assert.Equal(@"(a)", regexGenerator.ToString());
}
public void SimplePatternGenerationTest()
{
// Arrange
var expectedPattern = @"\d";
var regexGenerator = new RegexGenerator(RegexLanguage.DotNet)
.Add(expectedPattern);
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void SimpleCapturingGroupWithoutNamePatternGenerationTest()
{
// Arrange
var expectedPattern = @"(abcde)";
var regexGenerator = new RegexGenerator(RegexLanguage.DotNet)
.AddGroup(@"abcde", true);
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void SimpleUnicodeCategoryByStringPatternGenerationTest()
{
// Arrange
var expectedPattern = @"\p{Lo}+";
var regexGenerator = new RegexGenerator(RegexLanguage.DotNet)
.AddUnicodeCategory("Lo", min: 1);
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void SimpleNegativeLookbehindPatternGenerationTest()
{
// Arrange
var expectedPattern = @"(?<!abc)";
var regexGenerator = new RegexGenerator(RegexLanguage.DotNet)
.AddNegativeLookbehindAssertion("abc");
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void SimpleConditionalPatternGenerationTest()
{
// Arrange
var expectedPattern = @"(?(?=yes)yess|no)";
var regexGenerator = new RegexGenerator(RegexLanguage.DotNet)
.AddConditional("yes", "yess", "no");
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void SimpleNonCapturingGroupPatternGenerationTest()
{
// Arrange
var pattern = @"(?:abcde)";
var expectedPattern = $"/{pattern}/";
var regexGenerator = new RegexGenerator(RegexLanguage.ECMAScript)
.AddGroup("abcde", false);
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void SimpleCapturingGroupWithAngleBracketedNamePatternGenerationTest()
{
// Arrange
var expectedPattern = @"(?<word>abcde)";
var regexGenerator = new RegexGenerator(RegexLanguage.DotNet)
.AddGroup(@"abcde", name: "word");
// Important!
//(regexGenerator.RegexLanguageStrategy.Stringifier as DotNetRegexStringifier).NamedCaptureGroupBracketOption = NamedCaptureGroupBracketOption.AngleBracket;
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void SimpleNegativeLookaheadPatternGenerationTest()
{
// Arrange
var pattern = @"(?!abc)";
var expectedPattern = $"/{pattern}/";
var regexGenerator = new RegexGenerator(RegexLanguage.ECMAScript)
.AddNegativeLookaheadAssertion("abc");
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void SimpleAtomicGroupPatternGenerationTest()
{
// Arrange
var expectedPattern = @"(?>(\w)\1+).\b";
var regexGenerator = new RegexGenerator(RegexLanguage.DotNet)
.AddAtomicGroup(@"(\w)\1+")
.Add(@".\b");
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void CompositeAddNestedNodeTest()
{
// Arrange
var regexGenerator = new RegexGenerator();
var node1 = new RegexNode(@"[abc]");
var nested1 = new RegexGroupNode(node1, capturing: false, min: 1, max: null, quantifierOption: RegexQuantifierOption.Lazy);
var node2 = new RegexConditionalNode(@"a", "b", "c");
var nested2 = new RegexGroupNode(node2, capturing: true, name: "a");
// Act
regexGenerator.AddNegativeLookbehindAssertion(nested1)
.AddGroup(nested2);
// Assert
Assert.Equal(@"(?<!(?:[abc])+?)(?<a>(?(?=a)b|c))", regexGenerator.ToString());
}
public void UnicodeCategoryByFlagPatternGenerationsTest()
{
for (RegexUnicodeCategoryFlag flag = RegexUnicodeCategoryFlag.Lo; flag < RegexUnicodeCategoryFlag.Z; flag = (RegexUnicodeCategoryFlag)((int)flag << 1))
{
// Arrange
var expectedPattern = $@"\p{{{flag}}}+";
var regexGenerator = new RegexGenerator(RegexLanguage.DotNet)
.AddUnicodeCategory(flag, min: 1);
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
}
public void SimpleConditionalPatternGenerationTest()
{
// Arrange
var expectedPattern = @"(?(?=yes)yess|no)";
Assert.Throws <ConditionalNotSupportedException>(() =>
{
var regexGenerator = new RegexGenerator(RegexLanguage.ECMAScript)
.AddConditional("yes", "yess", "no");
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
});
}
public void CombinedGroupsPatternGenerationTest()
{
// Arrange
var expectedPattern = @"(?:[a-z]+?)(?<odd>13579)(?i:THIS)(\d+)?";
var regexGenerator = new RegexGenerator(RegexLanguage.DotNet)
.AddGroup("[a-z]+?", false)
.AddGroup("13579", true, "odd")
.AddGroup("THIS", false, options: "i") // capturing group option does not matter.
.AddGroup(@"\d+", true, min: 0, max: 1);
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
}
public void SimpleUnicodeCategoryByStringPatternGenerationTest()
{
// Arrange
var pattern = @"\p{Lo}+";
var expectedPattern = $"/{pattern}/";
Assert.Throws <UnicodeCategoryNotSupportedException>(() =>
{
var regexGenerator = new RegexGenerator(RegexLanguage.ECMAScript)
.AddUnicodeCategory("Lo", min: 1);
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
});
}
public void SimpleNegativeLookbehindPatternGenerationTest()
{
// Arrange
var pattern = @"(?<!abc)";
var expectedPattern = $"/{pattern}/";
Assert.Throws <NegativeLookbehindAssertionNotSupportedException>(() =>
{
var regexGenerator = new RegexGenerator(RegexLanguage.ECMAScript)
.AddNegativeLookbehindAssertion("abc");
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
});
}
public void SimpleAtomicGroupPatternGenerationTest()
{
// Arrange
var pattern = @"(?>(\w)\1+).\b";
var expectedPattern = $"/{pattern}/";
Assert.Throws <AtomicGroupNotSupportedException>(() =>
{
var regexGenerator = new RegexGenerator(RegexLanguage.ECMAScript)
.AddAtomicGroup(@"(\w)\1+")
.Add(@".\b");
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
});
}
public void UnicodeCategoryByFlagPatternGenerationsTest()
{
for (RegexUnicodeCategoryFlag flag = RegexUnicodeCategoryFlag.Lo; flag < RegexUnicodeCategoryFlag.Z; flag = (RegexUnicodeCategoryFlag)((int)flag << 1))
{
// Arrange
var pattern = $@"\p{{{flag}}}+";
var expectedPattern = $"/{pattern}/";
Assert.Throws <UnicodeCategoryNotSupportedException>(() =>
{
var regexGenerator = new RegexGenerator(RegexLanguage.ECMAScript)
.AddUnicodeCategory(flag, min: 1);
// Act
var actualPattern = regexGenerator.ToString();
// Assert
Assert.Equal(expectedPattern, actualPattern);
});
}
}
public void AddNodeQuantifierTest(RegexQuantifierOption quantifierOption)
{
// Arrange
var regexGenerator = new RegexGenerator();
// Act
regexGenerator.Add(@"a", min: 1, max: 10, quantifierOption: quantifierOption);
// Assert
Assert.Equal($@"a{{1,10}}{regexGenerator.RegexLanguageStrategy.Stringifier.ToQuantifierOptionString(quantifierOption)}", regexGenerator.ToString());
}
