Migrated several tests from blink to V8 repository.

test/webkit/regexp-in-and-foreach-handling.js

Index: test/webkit/regexp-in-and-foreach-handling.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/regexp-in-and-foreach-handling.js
similarity index 53%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/regexp-in-and-foreach-handling.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..a2430db7ba5e0a16e4a88d50004f1acaa7f817e2 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/regexp-in-and-foreach-handling.js
@@ -21,11 +21,52 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-description(
-"Tests the behavior of Array.prototype.concat while the array is having a bad time due to one of the elements we are concatenating."
-);
+description("Test for bug 31689: RegExp#exec's returned Array-like object behaves differently from regular Arrays");
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+var tests = [
+    [ /(a)(_)?.+(c)(_)?.+(e)(_)?.+/, 'abcdef', '["abcdef", "a", undefined, "c", undefined, "e", undefined]' ],
+    [ /(a)(_)?/, 'abcdef', '["a", "a", undefined]' ],
+    [ /(_)?.+(a)/, 'xabcdef', '["xa", undefined, "a"]' ],
+    [ /(_)?.+(a)(_)?/, 'xabcdef', '["xa", undefined, "a", undefined]' ],
+];
 
+function testRegExpMatchesArray(i)
+{
+    return tests[i][0].exec(tests[i][1]);
+}
+
+function testInOperator(i)
+{
+    var re = tests[i][0],
+        str = tests[i][1],
+        inArray = [],
+        matches = re.exec(str);
+
+    for (var j = 0; j < matches.length; j++) {
+        if (j in matches) {
+            inArray.push(matches[j]);
+        }
+    }
+    return inArray;
+}
+
+function testForEachFunction(i)
+{
+    var re = tests[i][0],
+        str = tests[i][1],
+        inArray = [],
+        matches = re.exec(str);
+
+    matches.forEach(function(m) {
+        inArray.push(m);
+    });
+    return inArray;
+
+}
+
+for (var i in tests) {
+    shouldBe('testRegExpMatchesArray(' + i + ')', tests[i][2]);
+    shouldBe('testInOperator(' + i + ')', tests[i][2]);
+    shouldBe('testForEachFunction(' + i + ')', tests[i][2]);
+}