Port remaining Sky tests to the new world

sky/tests/dom/getChildElements.sky

Index: sky/tests/dom/getChildElements.sky
diff --git a/sky/tests/dom/getChildElements.sky b/sky/tests/dom/getChildElements.sky
deleted file mode 100644
index 39c257f8cfa1c7bdc22af81263a39b85799ccef5..0000000000000000000000000000000000000000
--- a/sky/tests/dom/getChildElements.sky
+++ /dev/null
@@ -1,26 +0,0 @@
-<parent>
-  <child1>
-    <grandchild />
-  </child1>
-  <child2 />
-</parent>
-
-<script>
-import "../resources/third_party/unittest/unittest.dart";
-import "../resources/unit.dart";
-
-import "dart:sky";
-
-void main() {
-  initUnit();
-
-  test("getChildElements should only include immediate children", () {
-    var parent = document.querySelector('parent');
-    var children = parent.getChildElements();
-    expect(children.length, equals(2));
-    expect(children[0], equals(document.querySelector('child1')));
-    expect(children[1], equals(document.querySelector('child2')));
-  });
-}
-</script>
-</sky>