| 1 | /** |
| 2 | * @fileoverview Test cases for the callbacks. |
| 3 | * |
| 4 | * @author uemit.seren@gmail.com (Ümit Seren) |
| 5 | */ |
| 6 | |
| 7 | var CallbackTestCase = TestCase("callback"); |
| 8 | |
| 9 | CallbackTestCase.prototype.setUp = function() { |
| 10 | document.body.innerHTML = "<div id='graph'></div><div id='selection'></div>"; |
| 11 | this.styleSheet = document.createElement("style"); |
| 12 | this.styleSheet.type = "text/css"; |
| 13 | document.getElementsByTagName("head")[0].appendChild(this.styleSheet); |
| 14 | }; |
| 15 | |
| 16 | CallbackTestCase.prototype.tearDown = function() { |
| 17 | }; |
| 18 | |
| 19 | var data = "X,a\,b,c\n" + |
| 20 | "10,-1,1,2\n" + |
| 21 | "11,0,3,1\n" + |
| 22 | "12,1,4,2\n" + |
| 23 | "13,0,2,3\n"; |
| 24 | |
| 25 | |
| 26 | /** |
| 27 | * This tests that when the function idxToRow_ returns the proper row and the onHiglightCallback |
| 28 | * is properly called when the first series is hidden (setVisibility = false) |
| 29 | * |
| 30 | */ |
| 31 | CallbackTestCase.prototype.testHighlightCallbackIsCalled = function() { |
| 32 | var h_row; |
| 33 | var h_pts; |
| 34 | |
| 35 | var highlightCallback = function(e, x, pts, row) { |
| 36 | h_row = row; |
| 37 | h_pts = pts; |
| 38 | }; |
| 39 | |
| 40 | var graph = document.getElementById("graph"); |
| 41 | var g = new Dygraph(graph, data, |
| 42 | { |
| 43 | width: 100, |
| 44 | height: 100, |
| 45 | visibility: [false, true, true], |
| 46 | highlightCallback: highlightCallback |
| 47 | }); |
| 48 | |
| 49 | DygraphOps.dispatchMouseMove(g, 13, 10); |
| 50 | |
| 51 | //check correct row is returned |
| 52 | assertEquals(3, h_row); |
| 53 | //check there are only two points (because first series is hidden) |
| 54 | assertEquals(2, h_pts.length); |
| 55 | }; |
| 56 | |
| 57 | |
| 58 | /** |
| 59 | * Test that drawPointCallback isn't called when drawPoints is false |
| 60 | */ |
| 61 | CallbackTestCase.prototype.testDrawPointCallback_disabled = function() { |
| 62 | var called = false; |
| 63 | |
| 64 | var callback = function() { |
| 65 | called = true; |
| 66 | }; |
| 67 | |
| 68 | var graph = document.getElementById("graph"); |
| 69 | var g = new Dygraph(graph, data, { |
| 70 | drawPointCallback : callback, |
| 71 | }); |
| 72 | |
| 73 | assertFalse(called); |
| 74 | }; |
| 75 | |
| 76 | /** |
| 77 | * Test that drawPointCallback is called when drawPoints is true |
| 78 | */ |
| 79 | CallbackTestCase.prototype.testDrawPointCallback_enabled = function() { |
| 80 | var called = false; |
| 81 | |
| 82 | var callback = function() { |
| 83 | called = true; |
| 84 | }; |
| 85 | |
| 86 | var graph = document.getElementById("graph"); |
| 87 | var g = new Dygraph(graph, data, { |
| 88 | drawPoints : true, |
| 89 | drawPointCallback : callback |
| 90 | }); |
| 91 | |
| 92 | assertTrue(called); |
| 93 | }; |
| 94 | |
| 95 | /** |
| 96 | * Test that drawPointCallback is called when drawPoints is true |
| 97 | */ |
| 98 | CallbackTestCase.prototype.testDrawPointCallback_pointSize = function() { |
| 99 | var pointSize = 0; |
| 100 | var count = 0; |
| 101 | |
| 102 | var callback = function(g, seriesName, canvasContext, cx, cy, color, pointSizeParam) { |
| 103 | pointSize = pointSizeParam; |
| 104 | count++; |
| 105 | }; |
| 106 | |
| 107 | var graph = document.getElementById("graph"); |
| 108 | var g = new Dygraph(graph, data, { |
| 109 | drawPoints : true, |
| 110 | drawPointCallback : callback |
| 111 | }); |
| 112 | |
| 113 | assertEquals(1.5, pointSize); |
| 114 | assertEquals(12, count); // one call per data point. |
| 115 | |
| 116 | var g = new Dygraph(graph, data, { |
| 117 | drawPoints : true, |
| 118 | drawPointCallback : callback, |
| 119 | pointSize : 8 |
| 120 | }); |
| 121 | |
| 122 | assertEquals(8, pointSize); |
| 123 | }; |
| 124 | |
| 125 | /** |
| 126 | * This tests that when the function idxToRow_ returns the proper row and the onHiglightCallback |
| 127 | * is properly called when the first series is hidden (setVisibility = false) |
| 128 | * |
| 129 | */ |
| 130 | CallbackTestCase.prototype.testDrawHighlightPointCallbackIsCalled = function() { |
| 131 | var called = false; |
| 132 | |
| 133 | var drawHighlightPointCallback = function() { |
| 134 | called = true; |
| 135 | }; |
| 136 | |
| 137 | var graph = document.getElementById("graph"); |
| 138 | var g = new Dygraph(graph, data, |
| 139 | { |
| 140 | width: 100, |
| 141 | height : 100, |
| 142 | drawHighlightPointCallback : drawHighlightPointCallback |
| 143 | }); |
| 144 | |
| 145 | assertFalse(called); |
| 146 | DygraphOps.dispatchMouseMove(g, 13, 10); |
| 147 | assertTrue(called); |
| 148 | }; |
| 149 | |
| 150 | /** |
| 151 | * Test the closest-series highlighting methods for normal and stacked modes. |
| 152 | * Also pass in line widths for plain and highlighted lines for easier visual |
| 153 | * confirmation that the highlighted line is drawn on top of the others. |
| 154 | */ |
| 155 | var runClosestTest = function(isStacked, widthNormal, widthHighlighted) { |
| 156 | var h_row; |
| 157 | var h_pts; |
| 158 | var h_series; |
| 159 | |
| 160 | var graph = document.getElementById("graph"); |
| 161 | var g = new Dygraph(graph, data, |
| 162 | { |
| 163 | width: 600, |
| 164 | height: 400, |
| 165 | visibility: [false, true, true], |
| 166 | stackedGraph: isStacked, |
| 167 | strokeWidth: widthNormal, |
| 168 | strokeBorderWidth: 2, |
| 169 | highlightCircleSize: widthNormal * 2, |
| 170 | highlightSeriesBackgroundAlpha: 0.3, |
| 171 | |
| 172 | highlightSeriesOpts: { |
| 173 | strokeWidth: widthHighlighted, |
| 174 | highlightCircleSize: widthHighlighted * 2 |
| 175 | } |
| 176 | }); |
| 177 | |
| 178 | var highlightCallback = function(e, x, pts, row, set) { |
| 179 | h_row = row; |
| 180 | h_pts = pts; |
| 181 | h_series = set; |
| 182 | document.getElementById('selection').innerHTML='row=' + row + ', set=' + set; |
| 183 | }; |
| 184 | |
| 185 | g.updateOptions({highlightCallback: highlightCallback}, true); |
| 186 | |
| 187 | if (isStacked) { |
| 188 | DygraphOps.dispatchMouseMove(g, 11.45, 1.4); |
| 189 | assertEquals(1, h_row); |
| 190 | assertEquals('c', h_series); |
| 191 | |
| 192 | //now move up in the same row |
| 193 | DygraphOps.dispatchMouseMove(g, 11.45, 1.5); |
| 194 | assertEquals(1, h_row); |
| 195 | assertEquals('b', h_series); |
| 196 | |
| 197 | //and a bit to the right |
| 198 | DygraphOps.dispatchMouseMove(g, 11.55, 1.5); |
| 199 | assertEquals(2, h_row); |
| 200 | assertEquals('c', h_series); |
| 201 | } else { |
| 202 | DygraphOps.dispatchMouseMove(g, 11, 1.5); |
| 203 | assertEquals(1, h_row); |
| 204 | assertEquals('c', h_series); |
| 205 | |
| 206 | //now move up in the same row |
| 207 | DygraphOps.dispatchMouseMove(g, 11, 2.5); |
| 208 | assertEquals(1, h_row); |
| 209 | assertEquals('b', h_series); |
| 210 | } |
| 211 | |
| 212 | return g; |
| 213 | }; |
| 214 | |
| 215 | /** |
| 216 | * Test basic closest-point highlighting. |
| 217 | */ |
| 218 | CallbackTestCase.prototype.testClosestPointCallback = function() { |
| 219 | runClosestTest(false, 1, 3); |
| 220 | } |
| 221 | |
| 222 | /** |
| 223 | * Test setSelection() with series name |
| 224 | */ |
| 225 | CallbackTestCase.prototype.testSetSelection = function() { |
| 226 | var g = runClosestTest(false, 1, 3); |
| 227 | assertEquals(1, g.attr_('strokeWidth', 'c')); |
| 228 | g.setSelection(false, 'c'); |
| 229 | assertEquals(3, g.attr_('strokeWidth', 'c')); |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * Test closest-point highlighting for stacked graph |
| 234 | */ |
| 235 | CallbackTestCase.prototype.testClosestPointStackedCallback = function() { |
| 236 | runClosestTest(true, 1, 3); |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Closest-point highlighting with legend CSS - border around active series. |
| 241 | */ |
| 242 | CallbackTestCase.prototype.testClosestPointCallbackCss1 = function() { |
| 243 | var css = "div.dygraph-legend > span { display: block; }\n" + |
| 244 | "div.dygraph-legend > span.highlight { border: 1px solid grey; }\n"; |
| 245 | this.styleSheet.innerHTML = css; |
| 246 | runClosestTest(false, 2, 4); |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Closest-point highlighting with legend CSS - show only closest series. |
| 251 | */ |
| 252 | CallbackTestCase.prototype.testClosestPointCallbackCss2 = function() { |
| 253 | var css = "div.dygraph-legend > span { display: none; }\n" + |
| 254 | "div.dygraph-legend > span.highlight { display: inline; }\n"; |
| 255 | this.styleSheet.innerHTML = css; |
| 256 | runClosestTest(false, 10, 15); |
| 257 | // TODO(klausw): verify that the highlighted line is drawn on top? |
| 258 | } |