зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
4.6 KiB
HTML
113 строки
4.6 KiB
HTML
<!doctype html>
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<title>Range.cloneRange() and document.createRange() tests</title>
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<link rel="author" title="Aryeh Gregor" href=ayg@aryeh.name>
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<meta name=timeout content=long>
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<div id=log></div>
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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=../common.js></script>
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<script>
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"use strict";
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function testCloneRange(rangeEndpoints) {
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var range;
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if (rangeEndpoints == "detached") {
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range = document.createRange();
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range.detach();
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var clonedRange = range.cloneRange();
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assert_equals(clonedRange.startContainer, range.startContainer,
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"startContainers must be equal after cloneRange()");
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assert_equals(clonedRange.startOffset, range.startOffset,
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"startOffsets must be equal after cloneRange()");
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assert_equals(clonedRange.endContainer, range.endContainer,
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"endContainers must be equal after cloneRange()");
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assert_equals(clonedRange.endOffset, range.endOffset,
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"endOffsets must be equal after cloneRange()");
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return;
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}
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// Have to account for Ranges involving Documents! We could just create
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// the Range from the current document unconditionally, but some browsers
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// (WebKit) don't implement setStart() and setEnd() per spec and will throw
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// spurious exceptions at the time of this writing. No need to mask other
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// bugs.
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var ownerDoc = rangeEndpoints[0].nodeType == Node.DOCUMENT_NODE
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? rangeEndpoints[0]
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: rangeEndpoints[0].ownerDocument;
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range = ownerDoc.createRange();
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// Here we throw in some createRange() tests, because why not. Have to
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// test it someplace.
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assert_equals(range.startContainer, ownerDoc,
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"doc.createRange() must create Range whose startContainer is doc");
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assert_equals(range.endContainer, ownerDoc,
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"doc.createRange() must create Range whose endContainer is doc");
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assert_equals(range.startOffset, 0,
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"doc.createRange() must create Range whose startOffset is 0");
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assert_equals(range.endOffset, 0,
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"doc.createRange() must create Range whose endOffset is 0");
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range.setStart(rangeEndpoints[0], rangeEndpoints[1]);
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range.setEnd(rangeEndpoints[2], rangeEndpoints[3]);
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// Make sure we bail out now if setStart or setEnd are buggy, so it doesn't
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// create misleading failures later.
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assert_equals(range.startContainer, rangeEndpoints[0],
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"Sanity check on setStart()");
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assert_equals(range.startOffset, rangeEndpoints[1],
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"Sanity check on setStart()");
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assert_equals(range.endContainer, rangeEndpoints[2],
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"Sanity check on setEnd()");
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assert_equals(range.endOffset, rangeEndpoints[3],
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"Sanity check on setEnd()");
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var clonedRange = range.cloneRange();
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assert_equals(clonedRange.startContainer, range.startContainer,
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"startContainers must be equal after cloneRange()");
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assert_equals(clonedRange.startOffset, range.startOffset,
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"startOffsets must be equal after cloneRange()");
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assert_equals(clonedRange.endContainer, range.endContainer,
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"endContainers must be equal after cloneRange()");
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assert_equals(clonedRange.endOffset, range.endOffset,
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"endOffsets must be equal after cloneRange()");
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// Make sure that modifying one doesn't affect the other.
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var testNode1 = ownerDoc.createTextNode("testing");
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var testNode2 = ownerDoc.createTextNode("testing with different length");
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range.setStart(testNode1, 1);
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range.setEnd(testNode1, 2);
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assert_equals(clonedRange.startContainer, rangeEndpoints[0],
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"Modifying a Range must not modify its clone's startContainer");
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assert_equals(clonedRange.startOffset, rangeEndpoints[1],
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"Modifying a Range must not modify its clone's startOffset");
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assert_equals(clonedRange.endContainer, rangeEndpoints[2],
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"Modifying a Range must not modify its clone's endContainer");
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assert_equals(clonedRange.endOffset, rangeEndpoints[3],
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"Modifying a Range must not modify its clone's endOffset");
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clonedRange.setStart(testNode2, 3);
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clonedRange.setStart(testNode2, 4);
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assert_equals(range.startContainer, testNode1,
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"Modifying a clone must not modify the original Range's startContainer");
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assert_equals(range.startOffset, 1,
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"Modifying a clone must not modify the original Range's startOffset");
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assert_equals(range.endContainer, testNode1,
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"Modifying a clone must not modify the original Range's endContainer");
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assert_equals(range.endOffset, 2,
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"Modifying a clone must not modify the original Range's endOffset");
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}
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var tests = [];
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for (var i = 0; i < testRanges.length; i++) {
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tests.push([
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"Range " + i + " " + testRanges[i],
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eval(testRanges[i])
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]);
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}
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generate_tests(testCloneRange, tests);
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testDiv.style.display = "none";
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</script>
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