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Unified Diff: test/webkit/fast/regex/toString.js

Issue 20280003: Migrate more tests from blink repository. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 5 months ago
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Index: test/webkit/fast/regex/toString.js
diff --git a/test/webkit/fast/regex/toString.js b/test/webkit/fast/regex/toString.js
new file mode 100644
index 0000000000000000000000000000000000000000..a76fbe8c27e5214ca308a0cad43ae4de6ab8595f
--- /dev/null
+++ b/test/webkit/fast/regex/toString.js
@@ -0,0 +1,87 @@
+// 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 page tests toString conversion of RegExp objects, particularly wrt to '/' characters and RegExp.prototype.");
+
+function testForwardSlash(pattern, _string)
+{
+ string = _string;
+
+ re1 = new RegExp(pattern);
+ re2 = eval(re1.toString());
+
+ return re1.test(string) && re2.test(string);
+}
+
+function testLineTerminator(pattern)
+{
+ re1 = new RegExp(pattern);
+
+ return /\n|\r|\u2028|\u2029/.test(re1.toString());
+}
+
+shouldBe("RegExp('/').source", '"\\\\/"');
+shouldBe("RegExp('').source", '"(?:)"');
+shouldBe("RegExp.prototype.source", '"(?:)"');
+
+shouldBe("RegExp('/').toString()", '"/\\\\//"');
+shouldBe("RegExp('').toString()", '"/(?:)/"');
+shouldBe("RegExp.prototype.toString()", '"/(?:)/"');
+
+// These strings are equivalent, since the '\' is identity escaping the '/' at the string level.
+shouldBeTrue('testForwardSlash("^/$", "/");');
+shouldBeTrue('testForwardSlash("^\/$", "/");');
+// This string passes "^\/$" to the RegExp, so the '/' is escaped in the re!
+shouldBeTrue('testForwardSlash("^\\/$", "/");');
+// These strings pass "^\\/$" and "^\\\/$" respectively to the RegExp, giving one '\' to match.
+shouldBeTrue('testForwardSlash("^\\\\/$", "\\/");');
+shouldBeTrue('testForwardSlash("^\\\\\\/$", "\\/");');
+// These strings match two backslashes (the second with the '/' escaped).
+shouldBeTrue('testForwardSlash("^\\\\\\\\/$", "\\\\/");');
+shouldBeTrue('testForwardSlash("^\\\\\\\\\\/$", "\\\\/");');
+// Test that nothing goes wrongif there are multiple forward slashes!
+shouldBeTrue('testForwardSlash("x/x/x", "x\\/x\\/x");');
+shouldBeTrue('testForwardSlash("x\\/x/x", "x\\/x\\/x");');
+shouldBeTrue('testForwardSlash("x/x\\/x", "x\\/x\\/x");');
+shouldBeTrue('testForwardSlash("x\\/x\\/x", "x\\/x\\/x");');
+
+shouldBeFalse('testLineTerminator("\\n");');
+shouldBeFalse('testLineTerminator("\\\\n");');
+shouldBeFalse('testLineTerminator("\\r");');
+shouldBeFalse('testLineTerminator("\\\\r");');
+shouldBeFalse('testLineTerminator("\\u2028");');
+shouldBeFalse('testLineTerminator("\\\\u2028");');
+shouldBeFalse('testLineTerminator("\\u2029");');
+shouldBeFalse('testLineTerminator("\\\\u2029");');
+
+shouldBe("RegExp('[/]').source", "'[/]'");
+shouldBe("RegExp('\\\\[/]').source", "'\\\\[\\\\/]'");
+
+// See 15.10.6.4
+// The first half of this checks that:
+// Return the String value formed by concatenating the Strings "/", the
+// String value of the source property of this RegExp object, and "/";
+// The second half checks that:
+// The returned String has the form of a RegularExpressionLiteral that
+// evaluates to another RegExp object with the same behaviour as this object.
+shouldBe("var o = new RegExp(); o.toString() === '/'+o.source+'/' && eval(o.toString()+'.exec(String())')", '[""]');
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