| containing-block-has-rotate-transform |
| containing-block-undergoes-transition |
| element-in-containing-block-chain-has-overflow-clip-with-padding-and-border |
| element-in-containing-block-chain-has-overflow-clip-without-padding-or-border |
| intersection-ratio-is-nonzero-but-is-intersecting-is-false |
| multiple-observers-with-different-roots-and-targets |
| no-intersection-when-root-is-not-in-containing-block-chain-of-target |
| observers-should-update-when-elements-move |
| previous-threshold-index-and-is-intersecting-fields-should-be-updated |
| root-has-nonzero-padding-and-border |
| root-has-nonzero-padding-and-border-and-overflow-clip |
| root-has-nonzero-root-margin |
| root-intersects-with-multiple-targets |
| root-is-viewport-and-target-is-partially-visible |
| target-has-nonzero-padding-and-border |
| target-with-nonzero-area-is-edge-adjacent-to-root |
| target-with-zero-area-is-edge-adjacent-to-root |
| target-undergoes-transition |
| unobserved-targets-do-not-get-included-in-next-update |
