Tests for TreeScope.comparePosition().

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

PASS internals.compareTreeScopePosition(document, sr1) is Node.DOCUMENT_POSITION_CONTAINED_BY | Node.DOCUMENT_POSITION_FOLLOWING
PASS internals.compareTreeScopePosition(sr1, document) is Node.DOCUMENT_POSITION_CONTAINS | Node.DOCUMENT_POSITION_PRECEDING
PASS internals.compareTreeScopePosition(sr1, sr2) is Node.DOCUMENT_POSITION_FOLLOWING
PASS internals.compareTreeScopePosition(sr2, sr1) is Node.DOCUMENT_POSITION_PRECEDING
PASS internals.compareTreeScopePosition(sr2, sr3) is Node.DOCUMENT_POSITION_CONTAINED_BY | Node.DOCUMENT_POSITION_FOLLOWING
PASS internals.compareTreeScopePosition(sr3, sr2) is Node.DOCUMENT_POSITION_CONTAINS | Node.DOCUMENT_POSITION_PRECEDING
PASS internals.compareTreeScopePosition(sr1, sr3) is Node.DOCUMENT_POSITION_FOLLOWING
PASS internals.compareTreeScopePosition(sr3, sr1) is Node.DOCUMENT_POSITION_PRECEDING
PASS internals.compareTreeScopePosition(document, document) is 0
PASS internals.compareTreeScopePosition(sr1, sr1) is 0
PASS internals.compareTreeScopePosition(sr3, sr2) & Node.DOCUMENT_POSITION_PRECEDING || internals.compareTreeScopePosition(sr3, sr2) & Node.DOCUMENT_POSITION_FOLLOWING is non-zero.
PASS internals.compareTreeScopePosition(sr3, sr2) & Node.DOCUMENT_POSITION_DISCONNECTED is Node.DOCUMENT_POSITION_DISCONNECTED
PASS internals.compareTreeScopePosition(sr3, sr2) & Node.DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC is Node.DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC
PASS internals.compareTreeScopePosition(sr3, sr2) is internals.compareTreeScopePosition(sr3, sr2)
PASS successfullyParsed is true

TEST COMPLETE