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+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ *
+ * Date: 22 Jan 2002
+ * SUMMARY: Testing Error.prototype.toString()
+ *
+ * Revised: 25 Nov 2002
+ * See http://bugzilla.mozilla.org/show_bug.cgi?id=181909
+ *
+ * Note that ECMA-262 3rd Edition Final, Section 15.11.4.4 states that
+ * Error.prototype.toString() returns an implementation-dependent string.
+ * Therefore any testcase on this property is somewhat arbitrary.
+ *
+ * However, d-russo@ti.com pointed out that Rhino was returning this:
+ *
+ * js> err = new Error()
+ * undefined: undefined
+ *
+ * js> err = new Error("msg")
+ * undefined: msg
+ *
+ *
+ * We expect Rhino to return what SpiderMonkey currently does:
+ *
+ * js> err = new Error()
+ * Error
+ *
+ * js> err = new Error("msg")
+ * Error: msg
+ *
+ *
+ * i.e. we expect err.toString() === err.name if err.message is not defined;
+ * otherwise, we expect err.toString() === err.name + ': ' + err.message.
+ *
+ * See also ECMA 15.11.4.2, 15.11.4.3
+ */
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var BUGNUMBER = '(none)';
+var summary = 'Testing Error.prototype.toString()';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+var EMPTY_STRING = '';
+var EXPECTED_FORMAT = 0;
+
+
+status = inSection(1);
+var err1 = new Error('msg1');
+actual = examineThis(err1, 'msg1');
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(2);
+var err2 = new Error(err1);
+actual = examineThis(err2, err1);
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(3);
+var err3 = new Error();
+actual = examineThis(err3, EMPTY_STRING);
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(4);
+var err4 = new Error(EMPTY_STRING);
+actual = examineThis(err4, EMPTY_STRING);
+expect = EXPECTED_FORMAT;
+addThis();
+
+// now generate a run-time error -
+status = inSection(5);
+try
+{
+ eval('1=2');
+}
+catch(err5)
+{
+ actual = examineThis(err5, '.*');
+}
+expect = EXPECTED_FORMAT;
+addThis();
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+/*
+ * Searches err.toString() for err.name + ':' + err.message,
+ * with possible whitespace on each side of the colon sign.
+ *
+ * We allow for no colon in case err.message was not provided by the user.
+ * In such a case, SpiderMonkey and Rhino currently set err.message = '',
+ * as allowed for by ECMA 15.11.4.3. This makes |pattern| work in this case.
+ *
+ * If this is ever changed to a non-empty string, e.g. 'undefined',
+ * you may have to modify |pattern| to take that into account -
+ *
+ */
+function examineThis(err, msg)
+{
+ var pattern = err.name + '\\s*:?\\s*' + msg;
+ return err.toString().search(RegExp(pattern));
+}
+
+
+function addThis()
+{
+ statusitems[UBound] = status;
+ actualvalues[UBound] = actual;
+ expectedvalues[UBound] = expect;
+ UBound++;
+}
+
+
+function test()
+{
+ enterFunc ('test');
+ printBugNumber(BUGNUMBER);
+ printStatus (summary);
+
+ for (var i = 0; i < UBound; i++)
+ {
+ reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+ }
+
+ exitFunc ('test');
+}