tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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collapse.js (4204B)

      1 "use strict";
      2 
      3 function testCollapse(range, point, method) {
      4    selection.removeAllRanges();
      5    var addedRange;
      6    if (range) {
      7        addedRange = range.cloneRange();
      8        selection.addRange(addedRange);
      9    }
     10 
     11    if (point[0].nodeType == Node.DOCUMENT_TYPE_NODE) {
     12        assert_throws_dom("INVALID_NODE_TYPE_ERR", function() {
     13            selection[method](point[0], point[1]);
     14        }, "Must throw INVALID_NODE_TYPE_ERR when " + method + "()ing if the node is a DocumentType");
     15        return;
     16    }
     17 
     18    if (point[1] < 0 || point[1] > getNodeLength(point[0])) {
     19        assert_throws_dom("INDEX_SIZE_ERR", function() {
     20            selection[method](point[0], point[1]);
     21        }, "Must throw INDEX_SIZE_ERR when " + method + "()ing if the offset is negative or greater than the node's length");
     22        return;
     23    }
     24 
     25    if (!document.contains(point[0])) {
     26        assertSelectionNoChange(function() {
     27            selection[method](point[0], point[1]);
     28        });
     29        return;
     30    }
     31 
     32    selection[method](point[0], point[1]);
     33 
     34    assert_equals(selection.rangeCount, 1,
     35        "selection.rangeCount must equal 1 after " + method + "()");
     36    assert_equals(selection.focusNode, point[0],
     37        "focusNode must equal the node we " + method + "()d to");
     38    assert_equals(selection.focusOffset, point[1],
     39        "focusOffset must equal the offset we " + method + "()d to");
     40    assert_equals(selection.focusNode, selection.anchorNode,
     41        "focusNode and anchorNode must be equal after " + method + "()");
     42    assert_equals(selection.focusOffset, selection.anchorOffset,
     43        "focusOffset and anchorOffset must be equal after " + method + "()");
     44    if (range) {
     45        assert_equals(addedRange.startContainer, range.startContainer,
     46            method + "() must not change the startContainer of a preexisting Range");
     47        assert_equals(addedRange.endContainer, range.endContainer,
     48            method + "() must not change the endContainer of a preexisting Range");
     49        assert_equals(addedRange.startOffset, range.startOffset,
     50            method + "() must not change the startOffset of a preexisting Range");
     51        assert_equals(addedRange.endOffset, range.endOffset,
     52            method + "() must not change the endOffset of a preexisting Range");
     53    }
     54 }
     55 
     56 // Also test a selection with no ranges
     57 testRanges.unshift("[]");
     58 
     59 // Don't want to eval() each point a bazillion times
     60 var testPointsCached = [];
     61 for (var i = 0; i < testPoints.length; i++) {
     62    testPointsCached.push(eval(testPoints[i]));
     63 }
     64 
     65 // Run a subset of all of collapse tests.
     66 // Huge number of tests in a single file causes problems. Each of
     67 // collapse-NN.html runs a part of them.
     68 //
     69 // startIndex - Start index in testRanges array
     70 // optionalEndIndex - End index in testRanges array + 1. If this argument is
     71 //     omitted, testRanges.length is applied.
     72 function testCollapseSubSet(startIndex, optionalEndIndex) {
     73    var endIndex = optionalEndIndex === undefined ? testRanges.length : optionalEndIndex;
     74    if (startIndex < 0 || startIndex >= testRanges.length)
     75        throw "Sanity check: Specified index is invalid.";
     76    if (endIndex < 0 || endIndex > testRanges.length)
     77        throw "Sanity check: Specified index is invalid.";
     78 
     79    var tests = [];
     80    for (var i = startIndex; i < endIndex; i++) {
     81        var endpoints = eval(testRanges[i]);
     82        var range;
     83        test(function() {
     84            if (endpoints.length) {
     85                range = ownerDocument(endpoints[0]).createRange();
     86                range.setStart(endpoints[0], endpoints[1]);
     87                range.setEnd(endpoints[2], endpoints[3]);
     88            } else {
     89                // Empty selection
     90                range = null;
     91            }
     92        }, "Set up range " + i + " " + testRanges[i]);
     93        for (var j = 0; j < testPoints.length; j++) {
     94            tests.push(["collapse() on " + testRanges[i] + " to " + testPoints[j],
     95                        range, testPointsCached[j], "collapse"]);
     96            tests.push(["setPosition() on " + testRanges[i] + " to " + testPoints[j],
     97                        range, testPointsCached[j], "setPosition"]);
     98        }
     99    }
    100 
    101    generate_tests(testCollapse, tests);
    102 }