public void FromUnicodeShouldEscape4DigitHexadecimalNumber(string hex, char character)
{
// Act
var result = EscapeCharacterNode.FromUnicode(hex);
// Assert
result.Escape.ShouldBe($"u{hex}");
result.Character.ShouldBe(character);
result.ToString().ShouldBe($"\\u{hex}");
}
public void FromCharacterShouldEscapeMetacharacters(char metacharacter)
{
// Act
var result = EscapeCharacterNode.FromCharacter(metacharacter);
// Assert
result.Escape.ShouldBe(metacharacter.ToString());
result.Character.ShouldBe(metacharacter);
result.ToString().ShouldBe($"\\{metacharacter}");
}
public void FromHexShould2DigitEscapeHexadecimalNumber(string hex, char character)
{
// Act
var result = EscapeCharacterNode.FromHex(hex);
// Assert
result.Escape.ShouldBe($"x{hex}");
result.Character.ShouldBe(character);
result.ToString().ShouldBe($"\\x{hex}");
}
public void FromCharacterShouldEscapeEscapeCharacters(char escape, char character)
{
// Act
var result = EscapeCharacterNode.FromCharacter(escape);
// Assert
result.Escape.ShouldBe(escape.ToString());
result.Character.ShouldBe(character);
result.ToString().ShouldBe($"\\{escape}");
}
public void FromControlCharacterShouldEscape2Or3DigitOctalNumber(char control, char character)
{
// Act
var result = EscapeCharacterNode.FromControlCharacter(control);
// Assert
result.Escape.ShouldBe($"c{control}");
result.Character.ShouldBe(character);
result.ToString().ShouldBe($"\\c{control}");
}
public void FromOctalShouldEscape2Or3DigitOctalNumber(string oct, char character)
{
// Act
var result = EscapeCharacterNode.FromOctal(oct);
// Assert
result.Escape.ShouldBe(oct);
result.Character.ShouldBe(character);
result.ToString().ShouldBe($"\\{oct}");
}
public void ToStringOnEscapeCharacterNodeWithPrefixShouldReturnPrefixBeforeEscapeCharacter()
{
// Arrange
var comment = new CommentGroupNode("This is a comment.");
var target = EscapeCharacterNode.FromCharacter('a');
target.Prefix = comment;
// Act
var result = target.ToString();
// Assert
result.ShouldBe(@"(?#This is a comment.)\a");
}
public void CopyingEscapeNodeShouldCopyOriginalEscape()
{
// Arrange
var target = EscapeCharacterNode.FromCharacter('a');
// Act
// RemoveNode returns a copy of the current node.
var result = target.RemoveNode(new CharacterNode('x'));
// Assert
var escapeNode = result.ShouldBeOfType <EscapeCharacterNode>();
escapeNode.Escape.ShouldBe(target.Escape);
escapeNode.Character.ShouldBe(target.Character);
}
