Migrate more tests from blink repository.

test/webkit/fast/js/string-fontsize.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 is a test case for <a href="https://bugs.webkit.org/show_bug.cgi?id=3537">bug 3537</a>.'
+'This is a test case for String.prototype.fontsize(size).'
 );
 
-var Foo = { Bar: function () {}};
-var f = new Foo.Bar();
-shouldBe("f.constructor", "Foo.Bar");
-shouldBe("typeof f.constructor", '"function"');
+// This test is based on http://mathias.html5.org/tests/javascript/string/.
 
-function F() {};
-var Foo2 = { Bar: F};
-var f2 = new Foo2.Bar();
-shouldBe("f2.constructor", "Foo2.Bar");
-shouldBe("typeof f2.constructor", '"function"');
+// Check that the quotation mark is correctly escaped.
+shouldBe("'_'.fontsize('\"')", '"<font size=\\"&quot;\\">_</font>"');
 
-var Foo3 = { Bar: new Function("")};
-var f3 = new Foo3.Bar();
-shouldBe("f3.constructor", "Foo3.Bar");
-shouldBe("typeof f3.constructor", '"function"');
+// Simple case.
+shouldBe("'_'.fontsize('b')", '"<font size=\\"b\\">_</font>"');
+
+// Does not escape special characters in `this` value.
+shouldBe("'<'.fontsize('b')", '"<font size=\\"b\\"><</font>"');
+
+// First argument gets ToString()ed.
+shouldBe("'_'.fontsize(0x2A)", '"<font size=\\"42\\">_</font>"');
+
+// Check that the quotation mark is correctly escaped.
+shouldBe("'_'.fontsize('\"')", '"<font size=\\"&quot;\\">_</font>"');
+shouldBe("'_'.fontsize('\" color=\"b')", '"<font size=\\"&quot; color=&quot;b\\">_</font>"');
+
+// Generic use on Number object.
+shouldBe("String.prototype.fontsize.call(0x2A, 0x2A)", '"<font size=\\"42\\">42</font>"');
+
+// Generic use on non-coercible object `undefined`.
+shouldThrow("String.prototype.fontsize.call(undefined)", '"TypeError: Type error"');
+
+// Generic use on non-coercible object `null`.
+shouldThrow("String.prototype.fontsize.call(null)", '"TypeError: Type error"');
+
+// Check fontsize.length.
+shouldBe("String.prototype.fontsize.length", "1");