X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=auto_tests%2Ftests%2Fcustom_bars.js;h=e8af21456937176fa3fdd03cda8d3f550e5923ad;hb=a105b36aa566cc7b4198635af7ad36662ad5e30b;hp=1e1b0c98468312a630923c922c203da046680b2e;hpb=44477387f9e610d6d792bd06d0cd85d32d694752;p=dygraphs.git

diff --git a/auto_tests/tests/custom_bars.js b/auto_tests/tests/custom_bars.js
index 1e1b0c9..e8af214 100644
--- a/auto_tests/tests/custom_bars.js
+++ b/auto_tests/tests/custom_bars.js
@@ -6,11 +6,16 @@
  */
 var CustomBarsTestCase = TestCase("custom-bars");
 
+CustomBarsTestCase._origFunc = Dygraph.getContext;
 CustomBarsTestCase.prototype.setUp = function() {
   document.body.innerHTML = "<div id='graph'></div>";
+  Dygraph.getContext = function(canvas) {
+    return new Proxy(CustomBarsTestCase._origFunc(canvas));
+  }
 };
 
 CustomBarsTestCase.prototype.tearDown = function() {
+  Dygraph.getContext = CustomBarsTestCase._origFunc;
 };
 
 // This test used to reliably produce an infinite loop.
@@ -75,3 +80,116 @@ CustomBarsTestCase.prototype.testCustomBarsZero = function() {
   assertTrue('y-axis must include 0', range[0] <= 0);
   assertTrue('y-axis must include 5', range[1] >= 5);
 };
+
+// Regression test for http://code.google.com/p/dygraphs/issues/detail?id=229
+CustomBarsTestCase.prototype.testCustomBarsAtTop = function() {
+  var g = new Dygraph(document.getElementById("graph"),
+      [
+        [1, [10, 10, 100]],
+        [1, [10, 10, 100]],
+        [2, [15, 20, 110]],
+        [3, [10, 30, 100]],
+        [4, [15, 40, 110]],
+        [5, [10,120, 100]],
+        [6, [15, 50, 110]],
+        [7, [10, 70, 100]],
+        [8, [15, 90, 110]],
+        [9, [10, 50, 100]]
+      ], {
+        width: 500, height: 350,
+        customBars: true,
+        errorBars: true,
+        axes : {
+          x : {
+            drawGrid: false,
+            drawAxis: false,
+          },
+          y : {
+            drawGrid: false,
+            drawAxis: false,
+          }
+        },
+        valueRange: [0, 120],
+        fillAlpha: 0.15,
+        colors: [ '#00FF00' ]
+      });
+
+  var sampler = new PixelSampler(g);
+  assertEquals([0, 255, 0, 38], sampler.colorAtCoordinate(5, 60));
+};
+
+// Tests that custom bars work with log scale.
+CustomBarsTestCase.prototype.testCustomBarsLogScale = function() {
+  var g = new Dygraph(document.getElementById("graph"),
+      [
+        [1, [10, 10, 100]],
+        [5, [15,120, 80]],
+        [9, [10, 50, 100]]
+      ], {
+        width: 500, height: 350,
+        customBars: true,
+        errorBars: true,
+        valueRange: [1, 120],
+        axes : {
+          x : {
+            drawGrid: false,
+            drawAxis: false,
+          },
+          y : {
+            drawGrid: false,
+            drawAxis: false,
+          }
+        },
+        fillAlpha: 1.0,
+        logscale: true,
+        colors: [ '#00FF00' ]
+      });
+
+  // The following assertions describe the sides of the custom bars, which are
+  // drawn in two halves.
+  CanvasAssertions.assertConsecutiveLinesDrawn(
+      g.hidden_ctx_,
+      [[0, 13.329014086362069],
+       [247.5, 29.64240889852502],
+       [247.5, 152.02209814465604],
+       [0, 181.66450704318103]],
+      { fillStyle: "#00ff00" });
+
+  CanvasAssertions.assertConsecutiveLinesDrawn(
+      g.hidden_ctx_,
+      [[247.5, 29.64240889852502],
+       [495, 13.329014086362069],
+       [495, 181.66450704318103],
+       [247.5, 152.02209814465604]],
+      { fillStyle: "#00ff00" });
+};
+
+CustomBarsTestCase.prototype.testCustomBarsWithNegativeValuesInLogScale =
+    function() {
+  var graph = document.getElementById("graph");
+
+  var count = 0;
+  var drawPointCallback = function() {
+    count++;
+  };
+
+  var g = new Dygraph(graph,
+      [
+        [1, [10, 20,30]],
+        [2, [5, 10, 15]],
+        [3, [-1, 5, 10]]
+      ],
+      {
+        drawPoints: true,
+        drawPointCallback : drawPointCallback,
+        customBars: true
+      });
+
+  // Normally all three points would be drawn.
+  assertEquals(3, count);
+  count = 0;
+
+  // In log scale, the third point shouldn't be shown.
+  g.updateOptions({ logscale : true });
+  assertEquals(2, count);
+};