implemented Unit-Test for SelectorNode::append and fixed a bug in the append function.

2 files changed, 17 insertions, 4 deletions

diff --git a/src/core/CSS.cpp b/src/core/CSS.cpp
index 8beb075..c3900e8 100644
--- a/src/core/CSS.cpp
+++ b/src/core/CSS.cpp
@@ -116,16 +116,22 @@ std::vector<Rooted<SelectorNode>> SelectorNode::append(
 		if (edge->getTarget()->getEdges().size() == 0) {
 			// if there are no more subsequent edges this is a leafe we could
 			// not merge, because it is already present in the Tree.
-			out.push_back(edge->getTarget());
+			out.push_back(children[0]);
 		} else {
 			// otherwise we go into recursion.
 			for (auto &e : edge->getTarget()->getEdges()) {
+				Rooted<SelectorEdge> e2 {e};
 				std::vector<Rooted<SelectorNode>> childLeafs =
-				    children[0]->append(e);
+				    children[0]->append(e2);
 				out.insert(out.end(), childLeafs.begin(), childLeafs.end());
 			}
 		}
 	}
 	return out;
 }
+
+std::vector<Rooted<SelectorNode>> SelectorNode::append(Rooted<SelectorNode> node){
+	const Rooted<SelectorEdge> e {new SelectorEdge{node->getManager(), node}};
+	return std::move(append(e));
+}
 }
diff --git a/src/core/CSS.hpp b/src/core/CSS.hpp
index 8c87ee7..e730721 100644
--- a/src/core/CSS.hpp
+++ b/src/core/CSS.hpp
@@ -227,8 +227,9 @@ public:
 		const SelectionOperator selectionOperator;
 
 	public:
-		SelectorEdge(Manager &mgr, Handle<SelectorNode> target,
-		             SelectionOperator selectionOperator)
+		SelectorEdge(
+		    Manager &mgr, Handle<SelectorNode> target,
+		    SelectionOperator selectionOperator = SelectionOperator::DESCENDANT)
 		    : Managed(mgr),
 		      target(acquire(target)),
 		      selectionOperator(selectionOperator)
@@ -378,6 +379,12 @@ public:
 	 *         because they were already contained.
 	 */
 	std::vector<Rooted<SelectorNode>> append(Rooted<SelectorEdge> edge);
+
+	/**
+	 * This is just a convenience function which creates a new edge
+	 * automatically using the DESCENDANT SelectionOperator.
+	 */
+	std::vector<Rooted<SelectorNode>> append(Rooted<SelectorNode> node);
 };
 }
 #endif