| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2014 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| <link rel="import" href="/base/sorted_array_utils.html"> |
| <script> |
| 'use strict'; |
| |
| tr.b.unittest.testSuite(function() { |
| var ArrayOfIntervals = function(array) { |
| this.array = array; |
| } |
| |
| ArrayOfIntervals.prototype = { |
| |
| get: function(index) { |
| return this.array[index]; |
| }, |
| |
| findLowElementIndex: function(ts) { |
| return tr.b.findLowIndexInSortedArray( |
| this.array, |
| function(x) { return x.lo; }, |
| ts); |
| }, |
| |
| findIntervalIndex: function(ts) { |
| return tr.b.findIndexInSortedIntervals( |
| this.array, |
| function(x) { return x.lo; }, |
| function(x) { return x.hi - x.lo; }, |
| ts); |
| }, |
| |
| findIndexInClosedIntervals: function(ts) { |
| return tr.b.findIndexInSortedClosedIntervals( |
| this.array, |
| function(x) { return x.lo; }, |
| function(x) { return x.hi; }, |
| ts); |
| }, |
| |
| findIntersectingIntervals: function(tsA, tsB) { |
| var array = this.array; |
| var result = []; |
| tr.b.iterateOverIntersectingIntervals( |
| this.array, |
| function(x) { return x.lo; }, |
| function(x) { return x.hi - x.lo; }, |
| tsA, |
| tsB, |
| function(x) { result.push(array.indexOf(x)); }); |
| return result; |
| }, |
| |
| findClosestElement: function(ts, tsDiff) { |
| return tr.b.findClosestElementInSortedArray( |
| this.array, |
| function(x) { return x.lo; }, |
| ts, |
| tsDiff); |
| }, |
| |
| findClosestInterval: function(ts, tsDiff) { |
| return tr.b.findClosestIntervalInSortedIntervals( |
| this.array, |
| function(x) { return x.lo; }, |
| function(x) { return x.hi; }, |
| ts, |
| tsDiff); |
| } |
| }; |
| |
| test('findLowElementIndex', function() { |
| var array = new ArrayOfIntervals([ |
| {lo: 10, hi: 15}, |
| {lo: 20, hi: 30} |
| ]); |
| |
| assert.equal(array.findLowElementIndex(-100), 0); |
| assert.equal(array.findLowElementIndex(0), 0); |
| assert.equal(array.findLowElementIndex(10), 0); |
| |
| assert.equal(array.findLowElementIndex(10.1), 1); |
| assert.equal(array.findLowElementIndex(15), 1); |
| assert.equal(array.findLowElementIndex(20), 1); |
| |
| assert.equal(array.findLowElementIndex(20.1), 2); |
| assert.equal(array.findLowElementIndex(21), 2); |
| assert.equal(array.findLowElementIndex(100), 2); |
| }); |
| |
| test('findIntervalIndex', function() { |
| var array = new ArrayOfIntervals([ |
| {lo: 10, hi: 15}, |
| {lo: 20, hi: 30} |
| ]); |
| |
| assert.equal(array.findIntervalIndex(0), -1); |
| assert.equal(array.findIntervalIndex(9.9), -1); |
| |
| assert.equal(array.findIntervalIndex(10), 0); |
| assert.equal(array.findIntervalIndex(12), 0); |
| assert.equal(array.findIntervalIndex(14.9), 0); |
| |
| assert.equal(array.findIntervalIndex(20), 1); |
| assert.equal(array.findIntervalIndex(21), 1); |
| assert.equal(array.findIntervalIndex(29.99), 1); |
| |
| assert.equal(array.findIntervalIndex(30), 2); |
| assert.equal(array.findIntervalIndex(40), 2); |
| |
| |
| // misses, in between the intervals, return array length |
| assert.equal(array.findIntervalIndex(15), 2); |
| assert.equal(array.findIntervalIndex(19.9), 2); |
| }); |
| |
| test('findClosedIntervalIndex', function() { |
| var array = new ArrayOfIntervals([ |
| {lo: 10, hi: 15}, |
| {lo: 15, hi: 20}, |
| {lo: 21, hi: 25} |
| ]); |
| |
| assert.equal(array.findIndexInClosedIntervals(0), -1); |
| assert.equal(array.findIndexInClosedIntervals(9.999), -1); |
| assert.equal(array.findIndexInClosedIntervals(10), 0); |
| assert.equal(array.findIndexInClosedIntervals(14), 0); |
| assert.equal(array.findIndexInClosedIntervals(15), 0); |
| assert.equal(array.findIndexInClosedIntervals(15.00001), 1); |
| assert.equal(array.findIndexInClosedIntervals(20.5), 3); |
| assert.equal(array.findIndexInClosedIntervals(22), 2); |
| assert.equal(array.findIndexInClosedIntervals(25), 2); |
| assert.equal(array.findIndexInClosedIntervals(25.00001), 3); |
| }); |
| |
| test('findClosedInEmptyArray', function() { |
| var array = new ArrayOfIntervals([]); |
| assert.equal(array.findIndexInClosedIntervals(0), 0); |
| }); |
| |
| test('findIntersectingIntervals', function() { |
| var array = new ArrayOfIntervals([ |
| {lo: 10, hi: 15}, |
| {lo: 20, hi: 30} |
| ]); |
| |
| assert.deepEqual(array.findIntersectingIntervals(0, 0), []); |
| assert.deepEqual(array.findIntersectingIntervals(100, 0), []); |
| assert.deepEqual(array.findIntersectingIntervals(0, 10), []); |
| |
| assert.deepEqual(array.findIntersectingIntervals(0, 10.1), [0]); |
| assert.deepEqual(array.findIntersectingIntervals(5, 15), [0]); |
| assert.deepEqual(array.findIntersectingIntervals(15, 20), [0]); |
| |
| assert.deepEqual(array.findIntersectingIntervals(15.1, 20), []); |
| |
| assert.deepEqual(array.findIntersectingIntervals(15.1, 20.1), [1]); |
| assert.deepEqual(array.findIntersectingIntervals(20, 30), [1]); |
| assert.deepEqual(array.findIntersectingIntervals(30, 100), [1]); |
| |
| assert.deepEqual(array.findIntersectingIntervals(0, 100), [0, 1]); |
| assert.deepEqual(array.findIntersectingIntervals(15, 20.1), [0, 1]); |
| }); |
| |
| test('findClosestElement', function() { |
| var array = new ArrayOfIntervals([ |
| {lo: 10, hi: 15}, |
| {lo: 20, hi: 30} |
| ]); |
| |
| // Test the helper method first. |
| assert.isUndefined(array.get(-1)); |
| assert.equal(array.get(0), array.array[0]); |
| assert.equal(array.get(1), array.array[1]); |
| assert.isUndefined(array.get(2)); |
| |
| assert.isNull(array.findClosestElement(0, 0)); |
| assert.isNull(array.findClosestElement(0, 9.9)); |
| assert.isNull(array.findClosestElement(10, -10)); |
| |
| assert.equal(array.get(0), array.findClosestElement(0, 10)); |
| assert.equal(array.get(0), array.findClosestElement(8, 5)); |
| assert.equal(array.get(0), array.findClosestElement(10, 0)); |
| assert.equal(array.get(0), array.findClosestElement(12, 2)); |
| |
| assert.isNull(array.findClosestElement(15, 3)); |
| assert.isNotNull(array.findClosestElement(15, 5)); |
| |
| assert.equal(array.get(1), array.findClosestElement(19, 1)); |
| assert.equal(array.get(1), array.findClosestElement(20, 0)); |
| assert.equal(array.get(1), array.findClosestElement(30, 15)); |
| |
| assert.isNull(array.findClosestElement(30, 9.9)); |
| assert.isNull(array.findClosestElement(100, 50)); |
| }); |
| |
| test('findClosestInterval', function() { |
| var array = new ArrayOfIntervals([ |
| {lo: 10, hi: 15}, |
| {lo: 20, hi: 30} |
| ]); |
| |
| assert.isNull(array.findClosestInterval(0, 0)); |
| assert.isNull(array.findClosestInterval(0, 9.9)); |
| assert.isNull(array.findClosestInterval(0, -100)); |
| |
| assert.equal(array.get(0), array.findClosestInterval(0, 10)); |
| assert.equal(array.get(0), array.findClosestInterval(10, 0)); |
| assert.equal(array.get(0), array.findClosestInterval(12, 3)); |
| assert.equal(array.get(0), array.findClosestInterval(12, 100)); |
| |
| assert.equal(array.get(0), array.findClosestInterval(13, 3)); |
| assert.equal(array.get(0), array.findClosestInterval(13, 20)); |
| assert.equal(array.get(0), array.findClosestInterval(15, 0)); |
| |
| assert.isNull(array.findClosestInterval(17.5, 0)); |
| assert.isNull(array.findClosestInterval(17.5, 2.4)); |
| assert.isNotNull(array.findClosestInterval(17.5, 2.5)); |
| assert.isNotNull(array.findClosestInterval(17.5, 10)); |
| |
| assert.equal(array.get(1), array.findClosestInterval(19, 2)); |
| assert.equal(array.get(1), array.findClosestInterval(20, 0)); |
| assert.equal(array.get(1), array.findClosestInterval(24, 100)); |
| assert.equal(array.get(1), array.findClosestInterval(26, 100)); |
| |
| assert.equal(array.get(1), array.findClosestInterval(30, 0)); |
| assert.equal(array.get(1), array.findClosestInterval(35, 10)); |
| assert.equal(array.get(1), array.findClosestInterval(50, 100)); |
| |
| assert.isNull(array.findClosestInterval(50, 19)); |
| assert.isNull(array.findClosestInterval(100, 50)); |
| assert.isNull(array.findClosestInterval(50, -100)); |
| }); |
| }); |
| </script> |
