public void RemoveNodeResultShouldNotHaveReferenceToOriginalPrefix()
{
// Arrange
var prefix = new CommentGroupNode("This is a prefix.");
var oldNode = new TestRegexNode();
var target = new TestRegexNode(oldNode)
{
Prefix = prefix
};
// Act
RegexNode result = target.RemoveNode(oldNode);
// Assert
result.Prefix.ShouldNotBe(target.Prefix);
}
public void RemoveNodeShouldHaveNoReferencesToTheOriginalTreeNodes()
{
// Arrange
var charNodeA = new CharacterNode('a');
var charNodeB = new CharacterNode('b');
var childNodes = new List <RegexNode> {
charNodeA, charNodeB
};
var target = new TestRegexNode(childNodes);
// Act
RegexNode result = target.RemoveNode(charNodeA);
// Assert
result.ShouldNotBe(target);
result.ChildNodes.ShouldNotContain(charNodeA);
result.ChildNodes.ShouldNotContain(charNodeB);
}
public void RemoveNodeShouldCopyNodeAndRemoveOldNode()
{
// Arrange
var charNodeA = new CharacterNode('a');
var charNodeB = new CharacterNode('b');
var childNodes = new List <RegexNode> {
charNodeA, charNodeB
};
var target = new TestRegexNode(childNodes);
// Act
RegexNode result = target.RemoveNode(charNodeA);
// Assert
var childNode = result.ChildNodes.ShouldHaveSingleItem();
childNode.ToString().ShouldBe("b");
}
public void RemoveNodeShouldCopyRootsPrefix()
{
// Arrange
var prefix2 = new CommentGroupNode("This is the prefix's prefix.");
var prefix = new CommentGroupNode("This is a prefix.")
{
Prefix = prefix2
};
var oldNode = new TestRegexNode();
var target = new TestRegexNode(oldNode)
{
Prefix = prefix
};
// Act
RegexNode result = target.RemoveNode(oldNode);
// Assert
result.Prefix.ToString().ShouldBe(target.Prefix.ToString());
}
public void RemoveNodeShouldNotReturnRootNodeIfReturnRootIsFalse()
{
// Arrange
var charNodeA = new CharacterNode('a');
var charNodeB = new CharacterNode('b');
var targetChildNodes = new List <RegexNode> {
charNodeA, charNodeB
};
var target = new TestRegexNode(targetChildNodes);
var targetParent = new TestRegexNode(target);
_ = new TestRegexNode(targetParent);
// Act
RegexNode result = target.RemoveNode(charNodeA, false);
// Assert
var childNode = result.ChildNodes.ShouldHaveSingleItem();
childNode.ToString().ShouldBe("b");
}
public void RemoveNodeShouldReturnRootNode()
{
// Arrange
var charNodeA = new CharacterNode('a');
var charNodeB = new CharacterNode('b');
var targetChildNodes = new List <RegexNode> {
charNodeA, charNodeB
};
var target = new TestRegexNode(targetChildNodes);
var targetParent = new TestRegexNode(target);
_ = new TestRegexNode(targetParent);
// Act
RegexNode result = target.RemoveNode(charNodeA);
// Assert
var copiedTargetParentNode = result.ChildNodes.ShouldHaveSingleItem();
var modifiedNode = copiedTargetParentNode.ChildNodes.ShouldHaveSingleItem();
modifiedNode.ChildNodes.ShouldHaveSingleItem();
modifiedNode.ChildNodes.First().ToString().ShouldBe("b");
}
