Support stroke patterns (i.e. dashed/dotted lines).

[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 ca19301..0ea13a4 100644 (file)
--- a/auto_tests/tests/simple_drawing.js
+++ b/auto_tests/tests/simple_drawing.js
@@ -56,3 +56,27 @@ SimpleDrawingTestCase.prototype.testDrawSimpleRangePlusOne = function() {
     lineWidth: 1
   });
 }
+
+/**
+ * Tests that it is drawing dashes, and it remember the dash history between
+ * points.
+ */
+SimpleDrawingTestCase.prototype.testDrawSimpleDash = function() {
+  var opts = {
+      drawXGrid: false,
+      drawYGrid: false,
+      drawXAxis: false,
+      drawYAxis: false,
+      'Y1': {strokePattern: [25, 7, 7, 7]},
+      colors: ['#ff0000']
+  };
+
+  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);
+  htx = g.hidden_ctx_;
+
+  assertEquals(29, CanvasAssertions.numLinesDrawn(htx, "#ff0000"));
+};