Bug 805325 - Use the actual search engine name for logo's alt text on about:home, instead of the string "undefined". r=mak

browser/base/content/abouthome/aboutHome.js

@@ -144,7 +144,7 @@ function setupSearchEngine()
     if (searchEngineInfo.imageHD && window.matchMedia("(min-resolution: 2dppx)"))
       logoElt.src = searchEngineInfo.imageHD;
 #endif
-    logoElt.alt = searchEngineInfo.name;
+    logoElt.alt = searchEngineName;
   }
 
   // The "autofocus" attribute doesn't focus the form element

browser/base/content/test/browser_aboutHome.js

@@ -67,6 +67,28 @@ let gTests = [
     executeSoon(runNextTest);
   }
 },
+{
+  desc: "Check that search engine logo has alt text",
+  setup: function ()
+  {
+  },
+  run: function ()
+  {
+    let doc = gBrowser.selectedTab.linkedBrowser.contentDocument;
+
+    let searchEngineLogoElt = doc.getElementById("searchEngineLogo");
+    ok(searchEngineLogoElt, "Found search engine logo");
+
+    let altText = searchEngineLogoElt.alt;
+    ok(typeof altText == "string" && altText.length > 0,
+       "Search engine logo's alt text is a nonempty string");
+
+    isnot(altText, "undefined",
+          "Search engine logo's alt text shouldn't be the string 'undefined'");
+
+    executeSoon(runNextTest);
+  }
+},
 ];
 
 function test()