+
+// For a more visual version of this test, see
+// https://gist.github.com/danvk/e98dbb24253c9b153696
+// The drawing commands in the following two tests are taken from there.
+it('should handle gaps on the left', function() {
+ var htx = new Proxy(fakeCanvasContext);
+ var fastProxy = DygraphCanvasRenderer._fastCanvasProxy(htx);
+
+ fastProxy.moveTo(0, 320);
+ fastProxy.lineTo(0, 320);
+ fastProxy.lineTo(53.21, 187);
+ fastProxy.lineTo(53.23, 29);
+ fastProxy.lineTo(53.41, 320);
+ fastProxy.lineTo(54.15, 320);
+ fastProxy.lineTo(475, 320);
+ fastProxy.lineTo(475, 320);
+ fastProxy.fill();
+
+ assert.deepEqual([
+ ['moveTo', 0, 320],
+ ['lineTo', 0, 320],
+ ['lineTo', 53.21, 187],
+ ['lineTo', 53.23, 29],
+ ['lineTo', 53.41, 320],
+ ['lineTo', 54.15, 320],
+ ['lineTo', 475, 320],
+ ['lineTo', 475, 320]
+ ], extractMoveToAndLineToCalls(htx));
+});
+
+it('should handle gaps on the right', function() {
+ var htx = new Proxy(fakeCanvasContext);
+ var fastProxy = DygraphCanvasRenderer._fastCanvasProxy(htx);
+ fastProxy.moveTo(240.2, 320);
+ fastProxy.lineTo(240.2, 320);
+ fastProxy.lineTo(240.2, 174);
+ fastProxy.lineTo(240.7, 145);
+ fastProxy.lineTo(240.8, 320);
+ fastProxy.lineTo(241.3, 29);
+ fastProxy.lineTo(241.4, 320);
+ fastProxy.lineTo(715.9, 320);
+ fastProxy.lineTo(715.9, 320);
+ fastProxy.fill();
+
+ assert.deepEqual([
+ ['moveTo', 240.2, 320],
+ ['lineTo', 240.2, 320],
+ ['lineTo', 240.2, 174],
+ ['lineTo', 240.7, 145],
+ ['lineTo', 240.8, 320],
+ ['lineTo', 241.3, 29],
+ ['lineTo', 241.4, 320],
+ ['lineTo', 715.9, 320],
+ ['lineTo', 715.9, 320]
+ ], extractMoveToAndLineToCalls(htx));
+});
+