1 files changed, 34 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 0000000000..1bf9856039
--- /dev/null
+++ b/toolkit/components/tooltiptext/tests/browser_bug561623.js
@@ -0,0 +1,34 @@
+add_task(async function() {
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url:
+        "data:text/html,<!DOCTYPE html><html><body><input id='i'></body></html>",
+    },
+    async function(browser) {
+      await SpecialPowers.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"
+        );
+      });
+    }
+  );
+});