| 1 | // Copyright (c) 2011 Google, Inc. |
| 2 | // |
| 3 | // Permission is hereby granted, free of charge, to any person obtaining a copy |
| 4 | // of this software and associated documentation files (the "Software"), to deal |
| 5 | // in the Software without restriction, including without limitation the rights |
| 6 | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 7 | // copies of the Software, and to permit persons to whom the Software is |
| 8 | // furnished to do so, subject to the following conditions: |
| 9 | // |
| 10 | // The above copyright notice and this permission notice shall be included in |
| 11 | // all copies or substantial portions of the Software. |
| 12 | // |
| 13 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 14 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 15 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 16 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 17 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 18 | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 19 | // THE SOFTWARE. |
| 20 | |
| 21 | |
| 22 | /** |
| 23 | * @fileoverview Test cases that ensure Dygraphs works at all. |
| 24 | * |
| 25 | * @author konigsberg@google.com (Robert Konigsberg) |
| 26 | */ |
| 27 | var DEAD_SIMPLE_DATA = [[ 20061010, 2100 ]]; |
| 28 | var ZERO_TO_FIFTY = [[ 20061010, 0 ] , [ 20061011, 50 ]]; |
| 29 | |
| 30 | var SanityTestCase = TestCase("dygraphs-sanity"); |
| 31 | |
| 32 | SanityTestCase.prototype.setUp = function() { |
| 33 | document.body.innerHTML = "<div id='graph'></div>"; |
| 34 | }; |
| 35 | |
| 36 | /** |
| 37 | * The sanity test of sanity tests. |
| 38 | */ |
| 39 | SanityTestCase.prototype.testTrue = function() { |
| 40 | assertTrue(true); |
| 41 | }; |
| 42 | |
| 43 | /** |
| 44 | * Sanity test that ensures the graph element exists. |
| 45 | */ |
| 46 | SanityTestCase.prototype.testGraphExists = function() { |
| 47 | var graph = document.getElementById("graph"); |
| 48 | assertNotNull(graph); |
| 49 | }; |
| 50 | |
| 51 | /** |
| 52 | * A sanity test of sorts, by ensuring the dygraph is created, and |
| 53 | * isn't just some piece of junk object. |
| 54 | */ |
| 55 | SanityTestCase.prototype.testToString = function() { |
| 56 | var graph = document.getElementById("graph"); |
| 57 | var g = new Dygraph(graph, DEAD_SIMPLE_DATA, {}); |
| 58 | assertNotNull(g); |
| 59 | assertEquals("[Dygraph graph]", g.toString()); |
| 60 | }; |
| 61 | |
| 62 | /** |
| 63 | * Test that when no valueRange is specified, the y axis range is |
| 64 | * adjusted by 10% on top. |
| 65 | */ |
| 66 | SanityTestCase.prototype.testYAxisRange_default = function() { |
| 67 | var graph = document.getElementById("graph"); |
| 68 | assertEquals(0, graph.style.length); |
| 69 | var g = new Dygraph(graph, ZERO_TO_FIFTY, {}); |
| 70 | assertEquals([0, 55], g.yAxisRange(0)); |
| 71 | }; |
| 72 | |
| 73 | /** |
| 74 | * Test that valueRange matches the y-axis range specifically. |
| 75 | */ |
| 76 | SanityTestCase.prototype.testYAxisRange_custom = function() { |
| 77 | var graph = document.getElementById("graph"); |
| 78 | var g = new Dygraph(graph, ZERO_TO_FIFTY, { valueRange: [0,50] }); |
| 79 | assertEquals([0, 50], g.yAxisRange(0)); |
| 80 | }; |
| 81 | |
| 82 | function assertEqualsDelta(msg, expected, actual, delta) { |
| 83 | var args = this.argsWithOptionalMsg_(arguments, 4); |
| 84 | |
| 85 | var message = args[0]; |
| 86 | var exp = args[1]; |
| 87 | var act = args[2]; |
| 88 | var d = args[3]; |
| 89 | if (Math.abs(exp - act) > d) { |
| 90 | fail(message + |
| 91 | " Expected to be within " + d + " of " + exp + ", got " + act); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Test that valueRange matches the y-axis range specifically. |
| 97 | * |
| 98 | * This is based on the assumption that 20 pixels are dedicated to the |
| 99 | * axis label and tick marks. |
| 100 | * TODO(konigsberg): change yAxisLabelWidth to 0 (or 20) and try again. |
| 101 | */ |
| 102 | SanityTestCase.prototype.testToDomYCoord = function() { |
| 103 | var graph = document.getElementById("graph"); |
| 104 | var g = new Dygraph(graph, ZERO_TO_FIFTY, { height: 70, valueRange: [0,50] }); |
| 105 | |
| 106 | assertEquals(50, g.toDomYCoord(0)); |
| 107 | assertEquals(0, g.toDomYCoord(50)); |
| 108 | |
| 109 | for (var x = 0; x <= 50; x++) { |
| 110 | assertEqualsDelta(50 - x, g.toDomYCoord(x), 0.00001); |
| 111 | } |
| 112 | }; |