1 files changed, 24 insertions, 0 deletions
diff --git a/toolkit/components/tooltiptext/tests/browser_bug561623.js b/toolkit/components/tooltiptext/tests/browser_bug561623.js
new file mode 100644
index 000000000..49c51c4ba
--- /dev/null
+++ b/toolkit/components/tooltiptext/tests/browser_bug561623.js
@@ -0,0 +1,24 @@
+add_task(function*() {
+  yield BrowserTestUtils.withNewTab({
+    gBrowser,
+    url: "data:text/html,<!DOCTYPE html><html><body><input id='i'></body></html>",
+  }, function*(browser) {
+    yield ContentTask.spawn(browser, "", function() {
+      let tttp = Cc["@mozilla.org/embedcomp/default-tooltiptextprovider;1"]
+                 .getService(Ci.nsITooltipTextProvider);
+      let i = content.document.getElementById("i");
+
+      ok(!tttp.getNodeText(i, {}, {}),
+         "No tooltip should be shown when @title is null");
+
+      i.title = "foo";
+      ok(tttp.getNodeText(i, {}, {}),
+         "A tooltip should be shown when @title is not the empty string");
+
+      i.pattern = "bar";
+      ok(tttp.getNodeText(i, {}, {}),
+         "A tooltip should be shown when @title is not the empty string");
+    });
+  });
+});
+