| 1 | /** |
| 2 | * @fileoverview Tests zero and one-point charts. |
| 3 | * These don't have to render nicely, they just have to not crash. |
| 4 | * |
| 5 | * @author dan@dygraphs.com (Dan Vanderkam) |
| 6 | */ |
| 7 | describe("pathological-cases", function() { |
| 8 | |
| 9 | var restoreConsole; |
| 10 | var logs = {}; |
| 11 | beforeEach(function() { |
| 12 | document.body.innerHTML = "<div id='graph'></div>"; |
| 13 | restoreConsole = Util.captureConsole(logs); |
| 14 | }); |
| 15 | |
| 16 | afterEach(function() { |
| 17 | restoreConsole(); |
| 18 | }); |
| 19 | |
| 20 | it('testZeroPoint', function() { |
| 21 | var opts = { |
| 22 | width: 480, |
| 23 | height: 320 |
| 24 | }; |
| 25 | var data = "X,Y\n"; |
| 26 | |
| 27 | var graph = document.getElementById("graph"); |
| 28 | var g = new Dygraph(graph, data, opts); |
| 29 | }); |
| 30 | |
| 31 | it('testOnePoint', function() { |
| 32 | var opts = { |
| 33 | width: 480, |
| 34 | height: 320 |
| 35 | }; |
| 36 | var data = "X,Y\n" + |
| 37 | "1,2\n"; |
| 38 | |
| 39 | var graph = document.getElementById("graph"); |
| 40 | var g = new Dygraph(graph, data, opts); |
| 41 | }); |
| 42 | |
| 43 | it('testCombinations', function() { |
| 44 | var dataSets = { |
| 45 | empty: [], |
| 46 | onePoint: [[10, 2]], |
| 47 | nanPoint: [[10, NaN]], |
| 48 | nanPoints: [[10, NaN], [20, NaN]], |
| 49 | multiNan1: [[10, NaN, 2], [20, 3, NaN]], |
| 50 | multiNan2: [[10, NaN, 2], [20, NaN, 4]], |
| 51 | multiNan3: [[10, NaN, NaN], [20, 3, 4], [30, NaN, NaN]], |
| 52 | atZero: [[0, 0]], |
| 53 | atZero2: [[0, 0, 0]], |
| 54 | negative: [[-10, -1]], |
| 55 | acrossZero: [[-10, 1], [10, 2]], |
| 56 | normal: [[0,1,9], [10,3,5], [20,2,7], [30,4,3]] |
| 57 | }; |
| 58 | |
| 59 | var baseOpts = { |
| 60 | lines: {}, |
| 61 | stacked: { |
| 62 | stackedGraph: true |
| 63 | } |
| 64 | }; |
| 65 | |
| 66 | var variantOpts = { |
| 67 | none: {}, |
| 68 | avoidMinZero: { |
| 69 | avoidMinZero: true, |
| 70 | includeZero: true |
| 71 | }, |
| 72 | padded: { |
| 73 | includeZero: true, |
| 74 | drawAxesAtZero: true, |
| 75 | xRangePad: 2, |
| 76 | yRangePad: 4 |
| 77 | } |
| 78 | }; |
| 79 | |
| 80 | for (var baseName in baseOpts) { |
| 81 | var base = baseOpts[baseName]; |
| 82 | for (var variantName in variantOpts) { |
| 83 | var variant = variantOpts[variantName]; |
| 84 | |
| 85 | var opts = { |
| 86 | width: 300, |
| 87 | height: 150, |
| 88 | labelsDivWidth: 100, |
| 89 | pointSize: 10 |
| 90 | }; |
| 91 | for (var key in base) { |
| 92 | if (base.hasOwnProperty(key)) opts[key] = base[key]; |
| 93 | } |
| 94 | for (var key in variant) { |
| 95 | if (variant.hasOwnProperty(key)) opts[key] = variant[key]; |
| 96 | } |
| 97 | |
| 98 | var h = document.createElement('h3'); |
| 99 | h.appendChild(document.createTextNode(baseName + ' ' + variantName)); |
| 100 | document.body.appendChild(h); |
| 101 | for (var dataName in dataSets) { |
| 102 | var data = dataSets[dataName]; |
| 103 | |
| 104 | var box = document.createElement('fieldset'); |
| 105 | box.style.display = 'inline-block'; |
| 106 | var legend = document.createElement('legend'); |
| 107 | legend.appendChild(document.createTextNode(dataName)); |
| 108 | box.appendChild(legend); |
| 109 | var gdiv = document.createElement('div'); |
| 110 | gdiv.style.display = 'inline-block'; |
| 111 | box.appendChild(gdiv); |
| 112 | document.body.appendChild(box); |
| 113 | |
| 114 | var cols = data && data[0] ? data[0].length : 0; |
| 115 | opts.labels = ['X', 'A', 'B', 'C'].slice(0, cols); |
| 116 | |
| 117 | var g = new Dygraph(gdiv, data, opts); |
| 118 | |
| 119 | if (dataName == 'empty') { |
| 120 | assert.deepEqual(logs, { |
| 121 | log: [], warn: [], |
| 122 | error: ["Can't plot empty data set"] |
| 123 | }); |
| 124 | logs.error = []; // reset |
| 125 | } else { |
| 126 | assert.deepEqual(logs, {log: [], warn: [], error: []}); |
| 127 | } |
| 128 | } |
| 129 | } |
| 130 | } |
| 131 | }); |
| 132 | |
| 133 | it('testNullLegend', function() { |
| 134 | var opts = { |
| 135 | width: 480, |
| 136 | height: 320, |
| 137 | labelsDiv: null |
| 138 | }; |
| 139 | var data = "X,Y\n" + |
| 140 | "1,2\n"; |
| 141 | |
| 142 | var graph = document.getElementById("graph"); |
| 143 | var g = new Dygraph(graph, data, opts); |
| 144 | }); |
| 145 | |
| 146 | it('testDivAsString', function() { |
| 147 | var data = "X,Y\n" + |
| 148 | "1,2\n"; |
| 149 | |
| 150 | var g = new Dygraph('graph', data, {}); |
| 151 | }); |
| 152 | |
| 153 | |
| 154 | it('testConstantSeriesNegative', function() { |
| 155 | var data = "X,Y\n" + |
| 156 | "1,-1\n" + |
| 157 | "2,-1\n"; |
| 158 | |
| 159 | var g = new Dygraph('graph', data, {}); |
| 160 | // This check could be loosened to |
| 161 | // g.yAxisRange()[0] < g.yAxisRange()[1] if it breaks in the future. |
| 162 | assert.deepEqual([-1.1, -0.9], g.yAxisRange()); |
| 163 | }); |
| 164 | |
| 165 | |
| 166 | it('testConstantSeriesNegativeIncludeZero', function() { |
| 167 | var data = "X,Y\n" + |
| 168 | "1,-1\n" + |
| 169 | "2,-1\n"; |
| 170 | |
| 171 | var g = new Dygraph('graph', data, {includeZero: true}); |
| 172 | // This check could be loosened to |
| 173 | // g.yAxisRange()[0] < g.yAxisRange()[1] if it breaks in the future. |
| 174 | assert.deepEqual([-1.1, 0], g.yAxisRange()); |
| 175 | }); |
| 176 | |
| 177 | it('should throw with non-existent divs', function() { |
| 178 | var data = "X,Y\n" + |
| 179 | "1,-1\n" + |
| 180 | "2,1\n"; |
| 181 | |
| 182 | assert.throws(function() { |
| 183 | new Dygraph(null, data); |
| 184 | }, /non-existent div/); |
| 185 | |
| 186 | assert.throws(function() { |
| 187 | new Dygraph('non-existent-div-id', data); |
| 188 | }, /non-existent div/); |
| 189 | }); |
| 190 | |
| 191 | }); |