Migrate more tests from blink repository.

test/webkit/fast/regex/quantified-assertions.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 // 1.  Redistributions of source code must retain the above copyright
 //     notice, this list of conditions and the following disclaimer.
 // 2.  Redistributions in binary form must reproduce the above copyright
 //     notice, this list of conditions and the following disclaimer in the
 //     documentation and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (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(
-"This test checks that iterating a large array backwards works correctly."
+"This page tests assertions followed by quantifiers."
 );
 
-var bytes = new Array();
+var regexp;
 
-function prepare(nbytes) {
-    var i = nbytes - 1;
-    while (i >= 0) {
-        bytes[i] = new Number(i);
-        i -= 1;
-    }
-}
+regexp = /(?=a){0}/gm;
+debug("\nTesting regexp: " + regexp);
+shouldBeTrue("regexp.test('a')");
+shouldBe("regexp.lastIndex", "0");
 
-function verify(nbytes) {
-    var i = nbytes - 1;
-    while (i >= 0) {
-        if (bytes[i] != i)
-            return false;
-        i -= 1;
-    }
-    return true;
-}
+regexp = /(?=a){1}/gm;
+debug("\nTesting regexp: " + regexp);
+shouldBeTrue("regexp.test('a')");
+shouldBe("regexp.lastIndex", "0");
 
-prepare(32768);
-shouldBeTrue('verify(32768)');
+regexp = /(?!a){0}/gm;
+debug("\nTesting regexp: " + regexp);
+shouldBeTrue("regexp.test('b')");
+shouldBe("regexp.lastIndex", "0");
 
-prepare(65536);
-shouldBeTrue('verify(65536)');
+regexp = /(?!a){1}/gm;
+debug("\nTesting regexp: " + regexp);
+shouldBeTrue("regexp.test('b')");
+shouldBe("regexp.lastIndex", "0");
 
-prepare(120000);
-shouldBeTrue('verify(120000)');
+shouldBeTrue('/^(?=a)?b$/.test("b")');