Use shouldBecomeEqual in asynchronous spellchecking tests.

LayoutTests/editing/spelling/script-tests/spellcheck-paste.js

 
 description('For Bug 40092: Spell checking for pasted text.');
 
 jsTestIsAsync = true;
 
 var testRoot = document.createElement("div");
 document.body.insertBefore(testRoot, document.body.firstChild);
 
 var testTextArea = document.createElement("textarea");
 testRoot.appendChild(testTextArea);
@@ skipping 35 matching lines @@
 {
     if (node instanceof HTMLInputElement || node instanceof HTMLTextAreaElement) {
         node.focus();
     } else {
         sel.selectAllChildren(node);
     }
 
     var ok = true;
     for (var i = 0; ok && i < expectedMarked.length; ++i)
         ok = internals.hasSpellingMarker(document, expectedMarked[i][0], expectedMarked[i][1]);
+
+    if (ok) {
+        var nodeContent = node instanceof HTMLInputElement || node instanceof HTMLTextAreaElement ? node.value : node.innerHTML;
+        testPassed(node.tagName + " has a marker on '" + nodeContent + "'");
+    }
+
     return ok;
 }
 
+var destination = null;
+var misspelledLocations = null;
 function pasteAndVerify(source, dest, expectedMarked)
 {
     sel.selectAllChildren(source);
     document.execCommand("Copy");
     if (dest instanceof HTMLInputElement || dest instanceof HTMLTextAreaElement) {
         dest.value = "";
         dest.focus();
     } else {
         dest.innerHTML = "";
         sel.selectAllChildren(dest);
     }
     document.execCommand("Paste");
 
-    var nretry = 10;
-    var nsleep = 1;
-    function trial() { 
-        var verified = verifyMarker(dest, expectedMarked);
-        if (verified) {
-            testPassed(dest.tagName + " has a marker on '" + source.innerHTML + "'");
-            done();
-            return;
-        }
-
-        nretry--;
-        if (0 == nretry) {
-            testFailed(dest.tagName + " should have a marker on '" + source.innerHTML + "'");
-            done();
-            return;
-        }
-        
-        nsleep *= 2;
-        window.setTimeout(trial, nsleep);
-    };
-    trial();
+    if (window.internals) {
+        destination = dest;
+        misspelledLocations = expectedMarked;
+        shouldBecomeEqual('verifyMarker(destination, misspelledLocations)', 'true', done);
+    }
 };
 
 if (window.internals)
     internals.settings.setAsynchronousSpellCheckingEnabled(true);
 
 tests.push(function() { pasteAndVerify(testSourcePlain, testInput, [[0, 2]]); });
 tests.push(function() { pasteAndVerify(testSourceDecorated, testInput, [[0, 2]]); });
 tests.push(function() { pasteAndVerify(testSourceMulti, testInput, [[0, 2], [3, 2]]); });
 
 tests.push(function() { pasteAndVerify(testSourcePlain, testTextArea, [[0, 2]]); });
 tests.push(function() { pasteAndVerify(testSourceDecorated, testTextArea, [[0, 2]]); });
 tests.push(function() { pasteAndVerify(testSourceMulti, testTextArea, [[0, 2], [3, 2]]); });
 
 tests.push(function() { pasteAndVerify(testSourcePlain, testEditable, [[0, 2]]); });
 tests.push(function() { pasteAndVerify(testSourceDecorated, testEditable, [[0, 1]]); }); // To check "fo" part of foo.
 tests.push(function() { pasteAndVerify(testSourceMulti, testEditable, [[0, 2], [3, 2]]); });
 done();
 
 var successfullyParsed = true;