Update docs for committing changes.

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

diff --git a/auto_tests/tests/range_tests.js b/auto_tests/tests/range_tests.js
index 4fcb822..c2ef95e 100644 (file)
--- a/auto_tests/tests/range_tests.js
+++ b/auto_tests/tests/range_tests.js
@@ -161,3 +161,12 @@ RangeTestCase.prototype.testIncludeZeroIncludesZero = function() {
   g.updateOptions({ includeZero : false });
   assertEquals([450, 1050], g.yAxisRange(0));
 }
+
+/**
+ * Verify that very large Y ranges don't break things.
+ */ 
+RangeTestCase.prototype.testHugeRange = function() {
+  var g = new Dygraph("graph", [[0, -1e120], [1, 1e230]], { includeZero : true });
+  assertEqualsDelta(1, -1e229 / g.yAxisRange(0)[0], 0.001);
+  assertEqualsDelta(1, 1.1e230 / g.yAxisRange(0)[1], 0.001);
+}