Test the contains function that checks if a range contains a node. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS internals.rangeContainsNode(contentsRange(document), documentElement, 'ComposedTree') is true PASS internals.rangeContainsNode(contentsRange(document), body, 'ComposedTree') is true PASS internals.rangeContainsNode(contentsRange(documentElement), body, 'ComposedTree') is true PASS internals.rangeContainsNode(contentsRange(document), document, 'ComposedTree') is false PASS internals.rangeContainsNode(range(document, 0, document, 2), document, 'ComposedTree') is false PASS internals.rangeContainsNode(range(document, 0, documentElement, 0), body, 'ComposedTree') is false PASS internals.rangeContainsNode(range(document, 0, documentElement, 1), body, 'ComposedTree') is false PASS internals.rangeContainsNode(range(document, 0, body, 0), body, 'ComposedTree') is false PASS internals.rangeContainsNode(range(document, 0, body, 1), body, 'ComposedTree') is false PASS internals.rangeContainsNode(range(document, 0, documentElement, 2), body, 'ComposedTree') is true PASS internals.rangeContainsNode(contentsRange(document), a, 'ComposedTree') is false PASS internals.rangeContainsNode(contentsRange(body), f, 'ComposedTree') is false PASS internals.rangeContainsNode(contentsRange(body), h, 'ComposedTree') is true PASS successfullyParsed is true TEST COMPLETE