Bug fix for dygraph point selection touch event.

[dygraphs.git] / auto_tests / tests / simple_drawing.js

diff --git a/auto_tests/tests/simple_drawing.js b/auto_tests/tests/simple_drawing.js
index 7e9e6ef..2ef84f3 100644 (file)
--- a/auto_tests/tests/simple_drawing.js
+++ b/auto_tests/tests/simple_drawing.js
@@ -23,36 +23,163 @@
  *
  * @author konigsberg@google.com (Robert Konigsberg)
  */
-var ZERO_TO_FIFTY = [[ 10, 0 ] , [ 20, 50 ]];
 
-var SimpleDrawingTestCase = TestCase("simple-drawing");
+import Dygraph from '../../src/dygraph';
+import * as utils from '../../src/dygraph-utils';
 
-var _origFunc = Dygraph.getContext;
-SimpleDrawingTestCase.prototype.setUp = function() {
-  document.body.innerHTML = "<div id='graph'></div>";
-  Dygraph.getContext = function(canvas) {
-    return new Proxy(_origFunc(canvas));
-  }
-};
+import CanvasAssertions from './CanvasAssertions';
+import Proxy from './Proxy';
+import PixelSampler from './PixelSampler';
 
-SimpleDrawingTestCase.prototype.tearDown = function() {
-  Dygraph.getContext = _origFunc;
-};
+describe("simple-drawing", function() {
 
-SimpleDrawingTestCase.prototype.testDrawSimpleRangePlusOne = function() {
+cleanupAfterEach();
+useProxyCanvas(utils, Proxy);
+
+var ZERO_TO_FIFTY = 'X,Y\n10,0\n20,50';
+
+it('testDrawSimpleRangePlusOne', function() {
   var opts = {
-    drawXGrid: false,
-    drawYGrid: false,
-    drawXAxis: false,
-    drawYAxis: false,
-    valueRange: [0,51] }
+    axes: {
+      x: {
+        drawGrid: false,
+        drawAxis: false
+      },
+      y: {
+        drawGrid: false,
+        drawAxis: false
+      }
+    },
+    valueRange: [0,51]
+  };
 
   var graph = document.getElementById("graph");
   var g = new Dygraph(graph, ZERO_TO_FIFTY, opts);
   var htx = g.hidden_ctx_;
 
-  CanvasAssertions.assertLineDrawn(htx, [56,300], [475,5.8], {
+  CanvasAssertions.assertLineDrawn(htx, [0,320], [475,6.2745], {
     strokeStyle: "#008080",
     lineWidth: 1
   });
-}
+  g.destroy(); // to balance context saves and destroys.
+  CanvasAssertions.assertBalancedSaveRestore(htx);
+});
+
+// See http://code.google.com/p/dygraphs/issues/detail?id=185
+it('testDrawSimpleRangeZeroToFifty', function() {
+  var opts = {
+    axes : {
+      x : {
+        drawGrid: false,
+        drawAxis: false,
+      },
+      y : {
+        drawGrid: false,
+        drawAxis: false,
+      }
+    },
+    valueRange: [0,50] }
+
+  var graph = document.getElementById("graph");
+  var g = new Dygraph(graph, ZERO_TO_FIFTY, opts);
+  var htx = g.hidden_ctx_;
+
+  var lines = CanvasAssertions.getLinesDrawn(htx, {
+    strokeStyle: "#008080",
+    lineWidth: 1
+  });
+  assert.equal(1, lines.length);
+  g.destroy(); // to balance context saves and destroys.
+  CanvasAssertions.assertBalancedSaveRestore(htx);
+});
+
+it('testDrawWithAxis', function() {
+  var graph = document.getElementById("graph");
+  var g = new Dygraph(graph, ZERO_TO_FIFTY);
+
+  var htx = g.hidden_ctx_;
+  g.destroy(); // to balance context saves and destroys.
+  CanvasAssertions.assertBalancedSaveRestore(htx);
+});
+
+/**
+ * Tests that it is drawing dashes, and it remember the dash history between
+ * points.
+ */
+it('testDrawSimpleDash', function() {
+  var opts = {
+    axes: {
+      x: {
+        drawGrid: false,
+        drawAxis: false
+      },
+      y: {
+        drawGrid: false,
+        drawAxis: false
+      }
+    },
+    series: {
+      'Y1': {strokePattern: [25, 7, 7, 7]},
+    },
+    colors: ['#ff0000'],
+    labels: ['X', 'Y']
+  };
+
+  var graph = document.getElementById("graph");
+  // Set the dims so we pass if default changes.
+  graph.style.width='480px';
+  graph.style.height='320px';
+  var g = new Dygraph(graph, [[1, 4], [2, 5], [3, 3], [4, 7], [5, 9]], opts);
+  var htx = g.hidden_ctx_;
+
+  // TODO(danvk): figure out a good way to restore this test.
+  // assert.equal(29, CanvasAssertions.numLinesDrawn(htx, "#ff0000"));
+  g.destroy(); // to balance context saves and destroys.
+  CanvasAssertions.assertBalancedSaveRestore(htx);
+});
+
+/**
+ * Tests that thick lines are drawn continuously.
+ * Regression test for http://code.google.com/p/dygraphs/issues/detail?id=328
+ */
+it('testDrawThickLine', function() {
+  var opts = {
+    axes: {
+      x: {
+        drawGrid: false,
+        drawAxis: false
+      },
+      y: {
+        drawGrid: false,
+        drawAxis: false
+      }
+    },
+    strokeWidth: 15,
+    colors: ['#ff0000'],
+    labels: ['X', 'Y']
+  };
+
+  var graph = document.getElementById("graph");
+  // Set the dims so we pass if default changes.
+  graph.style.width='480px';
+  graph.style.height='320px';
+  var g = new Dygraph(graph, [[1, 2], [2, 5], [3, 2], [4, 7], [5, 0]], opts);
+  var htx = g.hidden_ctx_;
+
+  // There's a big gap in the line at (2, 5)
+  // If the bug is fixed, then there should be some red going up from here.
+  var xy = g.toDomCoords(2, 5);
+  var x = Math.round(xy[0]), y = Math.round(xy[1]);
+
+  var sampler = new PixelSampler(g);
+  assert.deepEqual([255,0,0,255], sampler.colorAtPixel(x, y));
+  assert.deepEqual([255,0,0,255], sampler.colorAtPixel(x, y - 1));
+  assert.deepEqual([255,0,0,255], sampler.colorAtPixel(x, y - 2));
+
+  // TODO(danvk): figure out a good way to restore this test.
+  // assert.equal(29, CanvasAssertions.numLinesDrawn(htx, "#ff0000"));
+  g.destroy(); // to balance context saves and destroys.
+  CanvasAssertions.assertBalancedSaveRestore(htx);
+});
+
+});