Andreas Hocevar
661 lines
18 KiB
JavaScript
661 lines
18 KiB
JavaScript
// Copyright 2009 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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goog.provide('goog.math.RangeSetTest');
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goog.setTestOnly('goog.math.RangeSetTest');
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goog.require('goog.iter');
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goog.require('goog.math.Range');
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goog.require('goog.math.RangeSet');
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goog.require('goog.testing.jsunit');
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/**
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* Produce legible assertion results for comparing ranges. The expected range
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* may be defined as a goog.math.Range or as a two-element array of numbers. If
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* two ranges are not equal, the error message will be in the format:
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* "Expected <[1, 2]> (Object) but was <[3, 4]> (Object)"
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*
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* @param {!goog.math.Range|!Array<number>|string} a A descriptive string or
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* the expected range.
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* @param {!goog.math.Range|!Array<number>} b The expected range when a
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* descriptive string is present, or the range to compare.
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* @param {goog.math.Range=} opt_c The range to compare when a descriptive
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* string is present.
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*/
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function assertRangesEqual(a, b, opt_c) {
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var message = opt_c ? a : '';
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var expected = opt_c ? b : a;
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var actual = opt_c ? opt_c : b;
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if (goog.isArray(expected)) {
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assertEquals(message + '\n' +
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'Expected ranges must be specified as goog.math.Range ' +
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'objects or as 2-element number arrays. Found [' +
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expected.join(', ') + ']',
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2, expected.length);
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expected = new goog.math.Range(expected[0], expected[1]);
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}
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if (!goog.math.Range.equals(/** @type {!goog.math.Range} */ (expected),
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/** @type {!goog.math.Range} */ (actual))) {
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if (message) {
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assertEquals(message, expected, actual);
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} else {
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assertEquals(expected, actual);
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}
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}
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}
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/**
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* Produce legible assertion results for comparing two lists of ranges. Expected
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* lists may be specified as a list of goog.math.Ranges, or as a list of
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* two-element arrays of numbers.
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*
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* @param {Array<goog.math.Range|Array<number>>|string} a A help
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* string or the list of expected ranges.
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* @param {Array<goog.math.Range|Array<number>>} b The list of
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* expected ranges when a descriptive string is present, or the list of
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* ranges to compare.
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* @param {Array<goog.math.Range>=} opt_c The list of ranges to compare when a
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* descriptive string is present.
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*/
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function assertRangeListsEqual(a, b, opt_c) {
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var message = opt_c ? a + '\n' : '';
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var expected = opt_c ? b : a;
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var actual = opt_c ? opt_c : b;
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assertEquals(message + 'Array lengths unequal.',
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expected.length, actual.length);
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for (var i = 0; i < expected.length; i++) {
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assertRangesEqual(message + 'Range ' + i + ' mismatch.',
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expected[i], actual[i]);
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}
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}
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function testClone() {
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var r = new goog.math.RangeSet();
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var test = new goog.math.RangeSet(r);
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assertRangeListsEqual([], test.ranges_);
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r.add(new goog.math.Range(-10, -2));
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r.add(new goog.math.Range(2.72, 3.14));
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r.add(new goog.math.Range(8, 11));
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test = r.clone();
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assertRangeListsEqual([[-10, -2], [2.72, 3.14], [8, 11]], test.ranges_);
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var test2 = r.clone();
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assertRangeListsEqual(test.ranges_, test2.ranges_);
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assertNotEquals('The clones should not share the same list reference.',
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test.ranges_, test2.ranges_);
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for (var i = 0; i < test.ranges_.length; i++) {
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assertNotEquals('The clones should not share references to ranges.',
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test.ranges_[i], test2.ranges_[i]);
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}
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}
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function testAddNoCorruption() {
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var r = new goog.math.RangeSet();
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var range = new goog.math.Range(1, 2);
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r.add(range);
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assertNotEquals('Only a copy of the input range should be stored.',
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range, r.ranges_[0]);
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range.end = 5;
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assertRangeListsEqual('Modifying an input range after use should not ' +
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'affect the set.',
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[[1, 2]], r.ranges_);
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}
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function testAdd() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(7, 12));
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assertRangeListsEqual([[7, 12]], r.ranges_);
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r.add(new goog.math.Range(1, 3));
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assertRangeListsEqual([[1, 3], [7, 12]], r.ranges_);
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r.add(new goog.math.Range(13, 18));
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assertRangeListsEqual([[1, 3], [7, 12], [13, 18]], r.ranges_);
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r.add(new goog.math.Range(5, 5));
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assertRangeListsEqual('Zero length ranges should be ignored.',
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[[1, 3], [7, 12], [13, 18]], r.ranges_);
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var badRange = new goog.math.Range(5, 5);
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badRange.end = 4;
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r.add(badRange);
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assertRangeListsEqual('Negative length ranges should be ignored.',
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[[1, 3], [7, 12], [13, 18]], r.ranges_);
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r.add(new goog.math.Range(-22, -15));
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assertRangeListsEqual('Negative ranges should work fine.',
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[[-22, -15], [1, 3], [7, 12], [13, 18]], r.ranges_);
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r.add(new goog.math.Range(3.1, 6.9));
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assertRangeListsEqual('Non-integer ranges should work fine.',
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[[-22, -15], [1, 3], [3.1, 6.9], [7, 12], [13, 18]],
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r.ranges_);
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}
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function testAddWithOverlaps() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(7, 12));
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r.add(new goog.math.Range(5, 8));
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assertRangeListsEqual([[5, 12]], r.ranges_);
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r.add(new goog.math.Range(15, 20));
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r.add(new goog.math.Range(18, 25));
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assertRangeListsEqual([[5, 12], [15, 25]], r.ranges_);
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r.add(new goog.math.Range(10, 17));
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assertRangeListsEqual([[5, 25]], r.ranges_);
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r.add(new goog.math.Range(-4, 4.5));
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assertRangeListsEqual([[-4, 4.5], [5, 25]], r.ranges_);
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r.add(new goog.math.Range(4.2, 5.3));
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assertRangeListsEqual([[-4, 25]], r.ranges_);
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}
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function testAddWithAdjacentSpans() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(7, 12));
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r.add(new goog.math.Range(13, 19));
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assertRangeListsEqual([[7, 12], [13, 19]], r.ranges_);
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r.add(new goog.math.Range(4, 6));
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assertRangeListsEqual([[4, 6], [7, 12], [13, 19]], r.ranges_);
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r.add(new goog.math.Range(6, 7));
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assertRangeListsEqual([[4, 12], [13, 19]], r.ranges_);
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r.add(new goog.math.Range(12, 13));
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assertRangeListsEqual([[4, 19]], r.ranges_);
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r.add(new goog.math.Range(19.1, 22));
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assertRangeListsEqual([[4, 19], [19.1, 22]], r.ranges_);
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r.add(new goog.math.Range(19, 19.1));
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assertRangeListsEqual([[4, 22]], r.ranges_);
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r.add(new goog.math.Range(-3, -2));
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assertRangeListsEqual([[-3, -2], [4, 22]], r.ranges_);
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r.add(new goog.math.Range(-2, 4));
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assertRangeListsEqual([[-3, 22]], r.ranges_);
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}
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function testAddWithSubsets() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(7, 12));
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assertRangeListsEqual([[7, 12]], r.ranges_);
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r.add(new goog.math.Range(7, 12));
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assertRangeListsEqual([[7, 12]], r.ranges_);
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r.add(new goog.math.Range(8, 11));
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assertRangeListsEqual([[7, 12]], r.ranges_);
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for (var i = 20; i < 30; i += 2) {
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r.add(new goog.math.Range(i, i + 1));
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}
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assertRangeListsEqual(
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[[7, 12], [20, 21], [22, 23], [24, 25], [26, 27], [28, 29]],
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r.ranges_);
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r.add(new goog.math.Range(1, 30));
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assertRangeListsEqual([[1, 30]], r.ranges_);
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}
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function testRemove() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(1, 3));
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r.add(new goog.math.Range(7, 8));
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r.add(new goog.math.Range(10, 20));
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r.remove(new goog.math.Range(3, 6));
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assertRangeListsEqual([[1, 3], [7, 8], [10, 20]], r.ranges_);
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r.remove(new goog.math.Range(7, 8));
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assertRangeListsEqual([[1, 3], [10, 20]], r.ranges_);
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r.remove(new goog.math.Range(1, 3));
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assertRangeListsEqual([[10, 20]], r.ranges_);
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r.remove(new goog.math.Range(8, 11));
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assertRangeListsEqual([[11, 20]], r.ranges_);
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r.remove(new goog.math.Range(18, 25));
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assertRangeListsEqual([[11, 18]], r.ranges_);
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r.remove(new goog.math.Range(15, 16));
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assertRangeListsEqual([[11, 15], [16, 18]], r.ranges_);
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r.remove(new goog.math.Range(11, 15));
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assertRangeListsEqual([[16, 18]], r.ranges_);
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r.remove(new goog.math.Range(16, 16));
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assertRangeListsEqual('Empty ranges should be ignored.',
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[[16, 18]], r.ranges_);
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r.remove(new goog.math.Range(16, 17));
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assertRangeListsEqual([[17, 18]], r.ranges_);
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r.remove(new goog.math.Range(17, 18));
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assertRangeListsEqual([], r.ranges_);
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}
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function testRemoveWithNonOverlappingRanges() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(10, 20));
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r.remove(new goog.math.Range(5, 8));
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assertRangeListsEqual('Non-overlapping ranges should be ignored.',
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[[10, 20]], r.ranges_);
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r.remove(new goog.math.Range(20, 30));
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assertRangeListsEqual('Non-overlapping ranges should be ignored.',
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[[10, 20]], r.ranges_);
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r.remove(new goog.math.Range(15, 15));
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assertRangeListsEqual('Zero-length ranges should be ignored.',
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[[10, 20]], r.ranges_);
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}
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function testRemoveWithIdenticalRanges() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(10, 20));
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r.add(new goog.math.Range(30, 40));
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r.add(new goog.math.Range(50, 60));
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assertRangeListsEqual([[10, 20], [30, 40], [50, 60]], r.ranges_);
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r.remove(new goog.math.Range(30, 40));
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assertRangeListsEqual([[10, 20], [50, 60]], r.ranges_);
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r.remove(new goog.math.Range(50, 60));
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assertRangeListsEqual([[10, 20]], r.ranges_);
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r.remove(new goog.math.Range(10, 20));
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assertRangeListsEqual([], r.ranges_);
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}
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function testRemoveWithOverlappingSubsets() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(1, 10));
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r.remove(new goog.math.Range(1, 4));
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assertRangeListsEqual([[4, 10]], r.ranges_);
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r.remove(new goog.math.Range(8, 10));
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assertRangeListsEqual([[4, 8]], r.ranges_);
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}
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function testRemoveMultiple() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(5, 8));
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r.add(new goog.math.Range(10, 20));
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r.add(new goog.math.Range(30, 35));
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for (var i = 20; i < 30; i += 2) {
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r.add(new goog.math.Range(i, i + 1));
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}
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assertRangeListsEqual(
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'Setting up the test data seems to have failed, how embarrassing.',
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[[5, 8], [10, 21], [22, 23], [24, 25], [26, 27], [28, 29], [30, 35]],
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r.ranges_);
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r.remove(new goog.math.Range(15, 32));
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assertRangeListsEqual([[5, 8], [10, 15], [32, 35]],
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r.ranges_);
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}
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function testRemoveWithRealNumbers() {
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var r = new goog.math.RangeSet();
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r.add(new goog.math.Range(2, 4));
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r.remove(new goog.math.Range(1.1, 2.72));
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assertRangeListsEqual([[2.72, 4]], r.ranges_);
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r.remove(new goog.math.Range(3.14, 5));
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assertRangeListsEqual([[2.72, 3.14]], r.ranges_);
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r.remove(new goog.math.Range(2.8, 3));
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assertRangeListsEqual([[2.72, 2.8], [3, 3.14]], r.ranges_);
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}
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function testEquals() {
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var a = new goog.math.RangeSet();
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var b = new goog.math.RangeSet();
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assertTrue(goog.math.RangeSet.equals(a, b));
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a.add(new goog.math.Range(3, 9));
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assertFalse(goog.math.RangeSet.equals(a, b));
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b.add(new goog.math.Range(4, 9));
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assertFalse(goog.math.RangeSet.equals(a, b));
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b.add(new goog.math.Range(3, 4));
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assertTrue(goog.math.RangeSet.equals(a, b));
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a.add(new goog.math.Range(12, 14));
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b.add(new goog.math.Range(11, 14));
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assertFalse(goog.math.RangeSet.equals(a, b));
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a.add(new goog.math.Range(11, 12));
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assertTrue(goog.math.RangeSet.equals(a, b));
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}
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function testContains() {
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var r = new goog.math.RangeSet();
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assertFalse(r.contains(7, 9));
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r.add(new goog.math.Range(5, 6));
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r.add(new goog.math.Range(10, 20));
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assertFalse(r.contains(new goog.math.Range(7, 9)));
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assertFalse(r.contains(new goog.math.Range(9, 11)));
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assertFalse(r.contains(new goog.math.Range(18, 22)));
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assertTrue(r.contains(new goog.math.Range(17, 19)));
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assertTrue(r.contains(new goog.math.Range(5, 6)));
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assertTrue(r.contains(new goog.math.Range(5.9, 5.999)));
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assertFalse('An empty input range should always return false.',
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r.contains(new goog.math.Range(15, 15)));
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var badRange = new goog.math.Range(15, 15);
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badRange.end = 14;
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assertFalse('An invalid range should always return false.',
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r.contains(badRange));
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}
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function testContainsValue() {
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var r = new goog.math.RangeSet();
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assertFalse(r.containsValue(5));
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r.add(new goog.math.Range(1, 4));
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r.add(new goog.math.Range(10, 20));
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assertFalse(r.containsValue(0));
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assertFalse(r.containsValue(0.999));
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assertFalse(r.containsValue(5));
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assertFalse(r.containsValue(25));
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assertFalse(r.containsValue(20));
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assertTrue(r.containsValue(3));
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assertTrue(r.containsValue(10));
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assertTrue(r.containsValue(19));
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assertTrue(r.containsValue(19.999));
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}
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function testUnion() {
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var a = new goog.math.RangeSet();
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a.add(new goog.math.Range(1, 5));
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a.add(new goog.math.Range(10, 11));
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a.add(new goog.math.Range(15, 20));
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var b = new goog.math.RangeSet();
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b.add(new goog.math.Range(0, 5));
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b.add(new goog.math.Range(8, 18));
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var test = a.union(b);
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assertRangeListsEqual([[0, 5], [8, 20]], test.ranges_);
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var test = b.union(a);
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assertRangeListsEqual([[0, 5], [8, 20]], test.ranges_);
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var test = a.union(a);
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assertRangeListsEqual(a.ranges_, test.ranges_);
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}
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function testDifference() {
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var a = new goog.math.RangeSet();
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a.add(new goog.math.Range(1, 5));
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a.add(new goog.math.Range(10, 11));
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a.add(new goog.math.Range(15, 20));
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var b = new goog.math.RangeSet();
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b.add(new goog.math.Range(0, 5));
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b.add(new goog.math.Range(8, 18));
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var test = a.difference(b);
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assertRangeListsEqual([[18, 20]], test.ranges_);
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var test = b.difference(a);
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assertRangeListsEqual([[0, 1], [8, 10], [11, 15]], test.ranges_);
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var test = a.difference(a);
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assertRangeListsEqual([], test.ranges_);
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var test = b.difference(b);
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assertRangeListsEqual([], test.ranges_);
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}
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function testIntersection() {
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var a = new goog.math.RangeSet();
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a.add(new goog.math.Range(1, 5));
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a.add(new goog.math.Range(10, 11));
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a.add(new goog.math.Range(15, 20));
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|
var b = new goog.math.RangeSet();
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|
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|
b.add(new goog.math.Range(0, 5));
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|
b.add(new goog.math.Range(8, 18));
|
|
|
|
var test = a.intersection(b);
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|
assertRangeListsEqual([[1, 5], [10, 11], [15, 18]], test.ranges_);
|
|
|
|
var test = b.intersection(a);
|
|
assertRangeListsEqual([[1, 5], [10, 11], [15, 18]], test.ranges_);
|
|
|
|
var test = a.intersection(a);
|
|
assertRangeListsEqual(a.ranges_, test.ranges_);
|
|
}
|
|
|
|
|
|
function testSlice() {
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|
var r = new goog.math.RangeSet();
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|
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|
r.add(new goog.math.Range(2, 4));
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|
r.add(new goog.math.Range(5, 6));
|
|
r.add(new goog.math.Range(9, 15));
|
|
|
|
var test = r.slice(new goog.math.Range(0, 2));
|
|
assertRangeListsEqual([], test.ranges_);
|
|
|
|
test = r.slice(new goog.math.Range(2, 4));
|
|
assertRangeListsEqual([[2, 4]], test.ranges_);
|
|
|
|
test = r.slice(new goog.math.Range(7, 20));
|
|
assertRangeListsEqual([[9, 15]], test.ranges_);
|
|
|
|
test = r.slice(new goog.math.Range(4, 30));
|
|
assertRangeListsEqual([[5, 6], [9, 15]], test.ranges_);
|
|
|
|
test = r.slice(new goog.math.Range(2, 15));
|
|
assertRangeListsEqual([[2, 4], [5, 6], [9, 15]], test.ranges_);
|
|
|
|
test = r.slice(new goog.math.Range(10, 10));
|
|
assertRangeListsEqual('An empty range should produce an empty set.',
|
|
[], test.ranges_);
|
|
|
|
var badRange = new goog.math.Range(10, 10);
|
|
badRange.end = 9;
|
|
test = r.slice(badRange);
|
|
assertRangeListsEqual('An invalid range should produce an empty set.',
|
|
[], test.ranges_);
|
|
}
|
|
|
|
|
|
function testInverse() {
|
|
var r = new goog.math.RangeSet();
|
|
|
|
r.add(new goog.math.Range(1, 3));
|
|
r.add(new goog.math.Range(5, 6));
|
|
r.add(new goog.math.Range(8, 10));
|
|
|
|
var test = r.inverse(new goog.math.Range(10, 20));
|
|
assertRangeListsEqual([[10, 20]], test.ranges_);
|
|
|
|
test = r.inverse(new goog.math.Range(1, 3));
|
|
assertRangeListsEqual([], test.ranges_);
|
|
|
|
test = r.inverse(new goog.math.Range(0, 2));
|
|
assertRangeListsEqual([[0, 1]], test.ranges_);
|
|
|
|
test = r.inverse(new goog.math.Range(9, 12));
|
|
assertRangeListsEqual([[10, 12]], test.ranges_);
|
|
|
|
test = r.inverse(new goog.math.Range(2, 9));
|
|
assertRangeListsEqual([[3, 5], [6, 8]], test.ranges_);
|
|
|
|
test = r.inverse(new goog.math.Range(4, 9));
|
|
assertRangeListsEqual([[4, 5], [6, 8]], test.ranges_);
|
|
|
|
test = r.inverse(new goog.math.Range(9, 9));
|
|
assertRangeListsEqual('An empty range should produce an empty set.',
|
|
[], test.ranges_);
|
|
|
|
var badRange = new goog.math.Range(9, 9);
|
|
badRange.end = 8;
|
|
test = r.inverse(badRange);
|
|
assertRangeListsEqual('An invalid range should produce an empty set.',
|
|
[], test.ranges_);
|
|
}
|
|
|
|
|
|
function testCoveredLength() {
|
|
var r = new goog.math.RangeSet();
|
|
assertEquals(0, r.coveredLength());
|
|
|
|
r.add(new goog.math.Range(5, 9));
|
|
assertEquals(4, r.coveredLength());
|
|
|
|
r.add(new goog.math.Range(0, 3));
|
|
r.add(new goog.math.Range(12, 13));
|
|
assertEquals(8, r.coveredLength());
|
|
|
|
r.add(new goog.math.Range(-1, 13));
|
|
assertEquals(14, r.coveredLength());
|
|
|
|
r.add(new goog.math.Range(13, 13.5));
|
|
assertEquals(14.5, r.coveredLength());
|
|
}
|
|
|
|
|
|
function testGetBounds() {
|
|
var r = new goog.math.RangeSet();
|
|
|
|
assertNull(r.getBounds());
|
|
|
|
r.add(new goog.math.Range(12, 54));
|
|
assertRangesEqual([12, 54], r.getBounds());
|
|
|
|
r.add(new goog.math.Range(108, 139));
|
|
assertRangesEqual([12, 139], r.getBounds());
|
|
}
|
|
|
|
|
|
function testIsEmpty() {
|
|
var r = new goog.math.RangeSet();
|
|
assertTrue(r.isEmpty());
|
|
|
|
r.add(new goog.math.Range(0, 1));
|
|
assertFalse(r.isEmpty());
|
|
|
|
r.remove(new goog.math.Range(0, 1));
|
|
assertTrue(r.isEmpty());
|
|
}
|
|
|
|
|
|
function testClear() {
|
|
var r = new goog.math.RangeSet();
|
|
|
|
r.add(new goog.math.Range(1, 2));
|
|
r.add(new goog.math.Range(3, 5));
|
|
r.add(new goog.math.Range(8, 13));
|
|
|
|
assertFalse(r.isEmpty());
|
|
|
|
r.clear();
|
|
assertTrue(r.isEmpty());
|
|
}
|
|
|
|
|
|
function testIter() {
|
|
var r = new goog.math.RangeSet();
|
|
|
|
r.add(new goog.math.Range(1, 3));
|
|
r.add(new goog.math.Range(5, 6));
|
|
r.add(new goog.math.Range(8, 10));
|
|
|
|
assertRangeListsEqual([[1, 3], [5, 6], [8, 10]], goog.iter.toArray(r));
|
|
|
|
var i = 0;
|
|
goog.iter.forEach(r, function(testRange) {
|
|
assertRangesEqual('Iterated set values should match the originals.',
|
|
r.ranges_[i], testRange);
|
|
assertNotEquals('Iterated range should not be a reference to the original.',
|
|
r.ranges_[i], testRange);
|
|
i++;
|
|
});
|
|
}
|