From 5fdfe3b17bedde8627f94b490c5a2a74bc26c78c Mon Sep 17 00:00:00 2001
From: clocksmith <antrob@google.com>
Date: Mon, 25 Feb 2013 11:58:15 -0500
Subject: [PATCH] Add tests for underlayCallback with no series.
---
auto_tests/tests/callback.js | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/auto_tests/tests/callback.js b/auto_tests/tests/callback.js
index e44e397..1d748fb 100644
--- a/auto_tests/tests/callback.js
+++ b/auto_tests/tests/callback.js
@@ -565,3 +565,27 @@ CallbackTestCase.prototype.testHighlightCallbackRow = function() {
assertEquals(2, highlightRow);
assertEquals('2: Y: 3 Z: 4', Util.getLegend());
};
+
+/**
+ * Test that underlay callback is called even when there are no series,
+ * and that the y axis ranges are not NaN.
+ */
+CallbackTestCase.prototype.underlayCallback_noSeries = function() {
+ var called = false;
+ var yMin, yMax;
+
+ var callback = function(canvas, area, g) {
+ called = true;
+ yMin = g.yAxisRange(0)[0];
+ yMax = g.yAxisRange(0)[0];
+ };
+
+ var graph = document.getElementById("graph");
+ var g = new Dygraph(graph, "\n", {
+ underlayCallback: callback
+ });
+
+ assertTrue(called);
+ assertFalse(isNaN(yMin));
+ assertFalse(isNaN(yMax));
+};
--
2.7.4