254 lines
8.0 KiB
HTML
254 lines
8.0 KiB
HTML
<!DOCTYPE html>
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<title>Shadow DOM: Slots and fallback contents</title>
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<meta name="author" title="Hayato Ito" href="mailto:hayato@google.com">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="resources/shadow-dom.js"></script>
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<div id="test1">
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<div id="host">
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<template data-mode="open">
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<slot id="s1" name="slot1">
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<div id="f1"></div>
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</slot>
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</template>
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</div>
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</div>
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<script>
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test(() => {
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let n = createTestTree(test1);
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removeWhiteSpaceOnlyTextNodes(n.test1);
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assert_equals(n.f1.assignedSlot, null);
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assert_array_equals(n.s1.assignedNodes(), []);
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assert_array_equals(n.s1.assignedNodes({ flatten: true }), [n.f1]);
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}, 'Slots fallback: Basic.');
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test(() => {
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let n = createTestTree(test1);
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assert_array_equals(n.s1.assignedElements(), []);
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assert_array_equals(n.s1.assignedElements({ flatten: true }), [n.f1]);
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}, 'Slots fallback: Basic, elements only.');
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</script>
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<div id="test2">
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<div id="host">
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<template data-mode="open">
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<slot id="s1" name="slot1">
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<slot id="s2" name="slot2">
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<div id="f1"></div>
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</slot>
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</slot>
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</template>
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</div>
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</div>
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<script>
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test(() => {
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let n = createTestTree(test2);
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removeWhiteSpaceOnlyTextNodes(n.test2);
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assert_equals(n.f1.assignedSlot, null);
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assert_array_equals(n.s1.assignedNodes(), []);
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assert_array_equals(n.s2.assignedNodes(), []);
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assert_array_equals(n.s1.assignedNodes({ flatten: true }), [n.f1]);
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assert_array_equals(n.s2.assignedNodes({ flatten: true }), [n.f1]);
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}, 'Slots fallback: Slots in Slots.');
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test(() => {
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let n = createTestTree(test2);
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assert_array_equals(n.s1.assignedElements(), []);
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assert_array_equals(n.s2.assignedElements(), []);
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assert_array_equals(n.s1.assignedElements({ flatten: true }), [n.f1]);
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assert_array_equals(n.s2.assignedElements({ flatten: true }), [n.f1]);
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}, 'Slots fallback: Slots in Slots, elements only.');
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</script>
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<div id="test3">
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<div id="host">
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<template data-mode="open">
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<slot id="s1" name="slot1">
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<slot id="s2" name="slot2">
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<div id="f1"></div>
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</slot>
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</slot>
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</template>
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<div id="c1" slot="slot1"></div>
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</div>
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</div>
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<script>
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test(() => {
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let n = createTestTree(test3);
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removeWhiteSpaceOnlyTextNodes(n.test3);
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assert_equals(n.c1.assignedSlot, n.s1);
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assert_equals(n.f1.assignedSlot, null);
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assert_array_equals(n.s1.assignedNodes(), [n.c1]);
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assert_array_equals(n.s2.assignedNodes(), []);
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assert_array_equals(n.s1.assignedNodes({ flatten: true }), [n.c1]);
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assert_array_equals(n.s2.assignedNodes({ flatten: true }), [n.f1]);
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}, 'Slots fallback: Fallback contents should not be used if a node is assigned.');
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</script>
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<div id="test4">
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<div id="host">
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<template data-mode="open">
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<slot id="s1" name="slot1">
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<slot id="s2" name="slot2">
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<div id="f1"></div>
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</slot>
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</slot>
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</template>
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<div id="c1" slot="slot2"></div>
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</div>
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</div>
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<script>
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test(() => {
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let n = createTestTree(test4);
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removeWhiteSpaceOnlyTextNodes(n.test4);
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assert_equals(n.c1.assignedSlot, n.s2);
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assert_equals(n.f1.assignedSlot, null);
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assert_array_equals(n.s1.assignedNodes(), []);
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assert_array_equals(n.s2.assignedNodes(), [n.c1]);
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assert_array_equals(n.s1.assignedNodes({ flatten: true }), [n.c1]);
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assert_array_equals(n.s2.assignedNodes({ flatten: true }), [n.c1]);
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}, 'Slots fallback: Slots in Slots: Assigned nodes should be used as fallback contents of another slot');
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</script>
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<div id="test5">
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<div id="host1">
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<template data-mode="open">
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<div id="host2">
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<template data-mode="open">
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<slot id="s4" name="slot4">
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<slot id="s3" name="slot3">
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<div id="f3"></div>
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</slot>
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<div id="f4"></div>
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</slot>
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</template>
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<slot id="s2" name="slot2" slot="slot3">
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<slot id="s1" name="slot1">
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<div id="f1"></div>
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</slot>
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<div id="f2"></div>
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</slot>
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</div>
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</template>
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<div id="c1" slot="slot1"></div>
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</div>
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</div>
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<script>
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test(() => {
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let n = createTestTree(test5);
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removeWhiteSpaceOnlyTextNodes(n.test5);
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assert_array_equals(n.s1.assignedNodes(), [n.c1]);
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assert_array_equals(n.s2.assignedNodes(), []);
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assert_array_equals(n.s3.assignedNodes(), [n.s2]);
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assert_array_equals(n.s4.assignedNodes(), []);
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assert_array_equals(n.s1.assignedNodes({ flatten: true }), [n.c1]);
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assert_array_equals(n.s2.assignedNodes({ flatten: true }), [n.c1, n.f2]);
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assert_array_equals(n.s3.assignedNodes({ flatten: true }), [n.c1, n.f2]);
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assert_array_equals(n.s4.assignedNodes({ flatten: true }), [n.c1, n.f2, n.f4]);
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}, 'Slots fallback: Complex case.');
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test(() => {
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let n = createTestTree(test5);
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assert_array_equals(n.s1.assignedElements(), [n.c1]);
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assert_array_equals(n.s2.assignedElements(), []);
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assert_array_equals(n.s3.assignedElements(), [n.s2]);
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assert_array_equals(n.s4.assignedElements(), []);
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assert_array_equals(n.s1.assignedElements({ flatten: true }), [n.c1]);
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assert_array_equals(n.s2.assignedElements({ flatten: true }), [n.c1, n.f2]);
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assert_array_equals(n.s3.assignedElements({ flatten: true }), [n.c1, n.f2]);
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assert_array_equals(n.s4.assignedElements({ flatten: true }), [n.c1, n.f2, n.f4]);
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}, 'Slots fallback: Complex case, elements only.');
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test(() => {
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let n = createTestTree(test5);
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removeWhiteSpaceOnlyTextNodes(n.test5);
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let d1 = document.createElement('div');
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n.s2.appendChild(d1);
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assert_array_equals(n.s1.assignedNodes({ flatten: true }), [n.c1]);
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assert_array_equals(n.s2.assignedNodes({ flatten: true }), [n.c1, n.f2, d1]);
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assert_array_equals(n.s3.assignedNodes({ flatten: true }), [n.c1, n.f2, d1]);
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assert_array_equals(n.s4.assignedNodes({ flatten: true }), [n.c1, n.f2, d1, n.f4]);
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}, 'Slots fallback: Mutation. Append fallback contents.');
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test(() => {
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let n = createTestTree(test5);
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removeWhiteSpaceOnlyTextNodes(n.test5);
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n.f2.remove();
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assert_array_equals(n.s1.assignedNodes({ flatten: true }), [n.c1]);
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assert_array_equals(n.s2.assignedNodes({ flatten: true }), [n.c1]);
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assert_array_equals(n.s3.assignedNodes({ flatten: true }), [n.c1]);
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assert_array_equals(n.s4.assignedNodes({ flatten: true }), [n.c1, n.f4]);
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}, 'Slots fallback: Mutation. Remove fallback contents.');
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test(() => {
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let n = createTestTree(test5);
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removeWhiteSpaceOnlyTextNodes(n.test5);
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let d2 = document.createElement('div');
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d2.setAttribute('slot', 'slot2');
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n.host1.appendChild(d2);
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assert_array_equals(n.s2.assignedNodes(), [d2]);
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assert_array_equals(n.s2.assignedNodes({ flatten: true }), [d2]);
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assert_array_equals(n.s3.assignedNodes({ flatten: true }), [d2]);
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assert_array_equals(n.s4.assignedNodes({ flatten: true }), [d2, n.f4]);
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}, 'Slots fallback: Mutation. Assign a node to a slot so that fallback contens are no longer used.');
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test(() => {
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let n = createTestTree(test5);
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removeWhiteSpaceOnlyTextNodes(n.test5);
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n.c1.remove();
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assert_array_equals(n.s1.assignedNodes(), []);
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assert_array_equals(n.s1.assignedNodes({ flatten: true }), [n.f1]);
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assert_array_equals(n.s2.assignedNodes({ flatten: true }), [n.f1, n.f2]);
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assert_array_equals(n.s3.assignedNodes({ flatten: true }), [n.f1, n.f2]);
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assert_array_equals(n.s4.assignedNodes({ flatten: true }), [n.f1, n.f2, n.f4]);
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}, 'Slots fallback: Mutation. Remove an assigned node from a slot so that fallback contens will be used.');
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test(() => {
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let n = createTestTree(test5);
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removeWhiteSpaceOnlyTextNodes(n.test5);
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n.s1.remove();
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assert_array_equals(n.s1.assignedNodes(), []);
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assert_array_equals(n.s1.assignedNodes({ flatten: true }), [],
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'fall back contents should be empty because s1 is not in a shadow tree.');
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assert_array_equals(n.s2.assignedNodes({ flatten: true }), [n.f2]);
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assert_array_equals(n.s3.assignedNodes({ flatten: true }), [n.f2]);
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assert_array_equals(n.s4.assignedNodes({ flatten: true }), [n.f2, n.f4]);
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}, 'Slots fallback: Mutation. Remove a slot which is a fallback content of another slot.');
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</script>
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