1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/jaeger/bug751320.js b/js/src/jit-test/tests/jaeger/bug751320.js
new file mode 100644
index 0000000000..2013150aa7
--- /dev/null
+++ b/js/src/jit-test/tests/jaeger/bug751320.js
@@ -0,0 +1,22 @@
+datediff = function(date1, date2, interval) {
+  var delta = 1;
+  switch(interval) {
+  case "day":
+    delta /= 24;
+  case "hour":
+    delta /= 60;
+  case "minute":
+    delta /= 60;
+  case "second":
+    delta /= 1000;
+  case "millisecond":
+    delta *= date2.getTime() - date1.getTime();
+  }
+  return Math.round(delta);
+};
+
+var diff = datediff(new Date("2012-04-28T14:30:00Z"), new Date("2012-04-29T14:30:00Z"), "day"); 
+for (var i = 0; i < 50; i++) {
+  diff = datediff(new Date("2012-04-28T17:00:00Z"), new Date("2012-04-28T17:30:00Z"), "minute"); 
+  assertEq(diff, 30);
+}