| This test only works in WKTR or DRT. |
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| Valid system preview |
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| Result: Link element present. Identified as system preview. Child 0 is an image inside a system preview. |
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| Valid system preview (multiple rel values) |
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| Result: Link element present. Identified as system preview. Child 0 is an image inside a system preview. |
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| Valid system preview (picture child) |
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| Result: Link element present. Identified as system preview. Child 0 is an image inside a system preview. |
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| Invalid system preview (wrong rel value) |
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| Result: Link element present. Not identified as system preview. Child 0 is not an image inside a system preview. |
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| Invalid system preview (wrong children) |
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| hello |
| Result: Link element present. Not identified as system preview. Child 0 is not an image inside a system preview. |
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| Invalid system preview (too many children) |
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| hello |
| Result: Link element present. Not identified as system preview. Child 0 is not an image inside a system preview. Child 1 is not an image inside a system preview. |
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| Invalid system preview (no children) |
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| Result: Link element present. Not identified as system preview. |
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| Invalid system preview (just an image) |
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| Result: No link. Child is not an image inside a system preview. |