Tests for Composed Shadow DOM Tree Traversal APIs. Can only run within DRT

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


Multiple shadow root without shadow element
Composed Shadow Tree:
DIV	 id=a
	DIV	 id=c

Traverse in forward.
DIV	 id=a
DIV	 id=c
Traverse in backward.
DIV	 id=c
DIV	 id=a

Multiple shadow root with shadow element
Composed Shadow Tree:
DIV	 id=a
	DIV	 id=c
	DIV	 id=b
	DIV	 id=e

Traverse in forward.
DIV	 id=a
DIV	 id=c
DIV	 id=b
DIV	 id=e
Traverse in backward.
DIV	 id=e
DIV	 id=b
DIV	 id=c
DIV	 id=a

Multiple shadow root with shadow element, case 2
Composed Shadow Tree:
DIV	 id=a
	DIV	 id=f
	DIV	 id=c
	DIV	 id=b
	DIV	 id=e
	DIV	 id=h

Traverse in forward.
DIV	 id=a
DIV	 id=f
DIV	 id=c
DIV	 id=b
DIV	 id=e
DIV	 id=h
Traverse in backward.
DIV	 id=h
DIV	 id=e
DIV	 id=b
DIV	 id=c
DIV	 id=f
DIV	 id=a

shadow reprojection
Composed Shadow Tree:
DIV	 id=a
	DIV	 id=b
		DIV	 id=d
		DIV	 id=a-child
		DIV	 id=f

Traverse in forward.
DIV	 id=a
DIV	 id=b
DIV	 id=d
DIV	 id=a-child
DIV	 id=f
Traverse in backward.
DIV	 id=f
DIV	 id=a-child
DIV	 id=d
DIV	 id=b
DIV	 id=a

shadow reprojection, take 2
Composed Shadow Tree:
DIV	 id=a
	DIV	 id=d
		DIV	 id=f
		DIV	 id=b
		DIV	 id=h

Traverse in forward.
DIV	 id=a
DIV	 id=d
DIV	 id=f
DIV	 id=b
DIV	 id=h
Traverse in backward.
DIV	 id=h
DIV	 id=b
DIV	 id=f
DIV	 id=d
DIV	 id=a

shadow fallback element reprojection
Composed Shadow Tree:
DIV	 id=a
	DIV	 id=i
		DIV	 id=k
		DIV	 id=c
		DIV	 id=b
		DIV	 id=g
		DIV	 id=h
		DIV	 id=m

Traverse in forward.
DIV	 id=a
DIV	 id=i
DIV	 id=k
DIV	 id=c
DIV	 id=b
DIV	 id=g
DIV	 id=h
DIV	 id=m
Traverse in backward.
DIV	 id=m
DIV	 id=h
DIV	 id=g
DIV	 id=b
DIV	 id=c
DIV	 id=k
DIV	 id=i
DIV	 id=a

with inactive insertion points
Composed Shadow Tree:
DIV	 id=a
	DIV	 id=s
		DIV	 id=u
		DIV	 id=f
		CONTENT	 id=b
			DIV	 id=c
		SHADOW	 id=d
			DIV	 id=e
		CONTENT	 id=l
		SHADOW	 id=m
		DIV	 id=n
		CONTENT	 id=p
		SHADOW	 id=q
		DIV	 id=r
		DIV	 id=w

Traverse in forward.
DIV	 id=a
DIV	 id=s
DIV	 id=u
DIV	 id=f
CONTENT	 id=b
DIV	 id=c
SHADOW	 id=d
DIV	 id=e
CONTENT	 id=l
SHADOW	 id=m
DIV	 id=n
CONTENT	 id=p
SHADOW	 id=q
DIV	 id=r
DIV	 id=w
Traverse in backward.
DIV	 id=w
DIV	 id=r
SHADOW	 id=q
CONTENT	 id=p
DIV	 id=n
SHADOW	 id=m
CONTENT	 id=l
DIV	 id=e
SHADOW	 id=d
DIV	 id=c
CONTENT	 id=b
DIV	 id=f
DIV	 id=u
DIV	 id=s
DIV	 id=a

PASS successfullyParsed is true

TEST COMPLETE