public void Parse_WithGroupedAlternativesInConcatination_ReturnsExpectedTree()
{
// Arrange
var pattern = "a(b|c)d";
// Act
var regex = Regex.Parse(pattern);
// Assert
regex.Tree.AssertConcatenation(
TreeAssert.Char('a'),
TreeAssert.Concat(
TreeAssert.Alt(
TreeAssert.Char('b'),
TreeAssert.Char('c')),
TreeAssert.Char('d')));
}
public void Parse_WithNestedAlternativeGroups_ReturnsExpectedTree()
{
// Arrange
var pattern = "(a|b)(c|d)";
// Act
var regex = Regex.Parse(pattern);
// Assert
regex.Tree.AssertConcatenation(
TreeAssert.Alt(
TreeAssert.Char('a'),
TreeAssert.Char('b')),
TreeAssert.Alt(
TreeAssert.Char('c'),
TreeAssert.Char('d')));
}
public void Parse_WithChainedAlternatives_ReturnsExpectedTree()
{
// Arrange
var pattern = "a|b|c|d";
// Act
var regex = Regex.Parse(pattern);
// Assert
regex.Tree.AssertAlternative(
TreeAssert.Char('a'),
TreeAssert.Alt(
TreeAssert.Char('b'),
TreeAssert.Alt(
TreeAssert.Char('c'),
TreeAssert.Char('d'))));
}