+/**
+ * Checks how many lines of the given color have been drawn.
+ * @return {Integer} The number of lines of the given color.
+ */
+CanvasAssertions.numLinesDrawn = function(proxy, color) {
+ var num_lines = 0;
+ for (var i = 0; i < proxy.calls__.length; i++) {
+ var call = proxy.calls__[i];
+ if (call.name == "lineTo" && call.properties.strokeStyle == color) {
+ num_lines++;
+ }
+ }
+ return num_lines;
+}
+