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+/* The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is Mozilla Communicator client code, released March
+ * 31, 1998.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation. Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ */
+/**
+ File Name: 11.6.1-2.js
+ ECMA Section: 11.6.1 The addition operator ( + )
+ Description:
+
+ The addition operator either performs string concatenation or numeric
+ addition.
+
+ The production AdditiveExpression : AdditiveExpression + MultiplicativeExpression
+ is evaluated as follows:
+
+ 1. Evaluate AdditiveExpression.
+ 2. Call GetValue(Result(1)).
+ 3. Evaluate MultiplicativeExpression.
+ 4. Call GetValue(Result(3)).
+ 5. Call ToPrimitive(Result(2)).
+ 6. Call ToPrimitive(Result(4)).
+ 7. If Type(Result(5)) is String or Type(Result(6)) is String, go to step 12.
+ (Note that this step differs from step 3 in the algorithm for comparison
+ for the relational operators in using or instead of and.)
+ 8. Call ToNumber(Result(5)).
+ 9. Call ToNumber(Result(6)).
+ 10. Apply the addition operation to Result(8) and Result(9). See the discussion below (11.6.3).
+ 11. Return Result(10).
+ 12. Call ToString(Result(5)).
+ 13. Call ToString(Result(6)).
+ 14. Concatenate Result(12) followed by Result(13).
+ 15. Return Result(14).
+
+ Note that no hint is provided in the calls to ToPrimitive in steps 5 and 6.
+ All native ECMAScript objects except Date objects handle the absence of a
+ hint as if the hint Number were given; Date objects handle the absence of a
+ hint as if the hint String were given. Host objects may handle the absence
+ of a hint in some other manner.
+
+ This test does only covers cases where the Additive or Mulplicative expression
+ ToPrimitive is a string.
+
+ Author: christine@netscape.com
+ Date: 12 november 1997
+*/
+ var SECTION = "11.6.1-2";
+ var VERSION = "ECMA_1";
+ startTest();
+
+ var testcases = getTestCases();
+
+ writeHeaderToLog( SECTION + " The Addition operator ( + )");
+ test();
+
+function test() {
+ for ( tc=0; tc < testcases.length; tc++ ) {
+ testcases[tc].passed = writeTestCaseResult(
+ testcases[tc].expect,
+ testcases[tc].actual,
+ testcases[tc].description +" = "+
+ testcases[tc].actual );
+
+ testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
+ }
+ stopTest();
+ return ( testcases );
+}
+function getTestCases() {
+ var array = new Array();
+ var item = 0;
+
+ // tests for boolean primitive, boolean object, Object object, a "MyObject" whose value is
+ // a boolean primitive and a boolean object, and "MyValuelessObject", where the value is
+ // set in the object's prototype, not the object itself.
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = 'string'; var EXP_2 = false; EXP_1 + EXP_2",
+ "stringfalse",
+ eval("var EXP_1 = 'string'; var EXP_2 = false; EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = true; var EXP_2 = 'string'; EXP_1 + EXP_2",
+ "truestring",
+ eval("var EXP_1 = true; var EXP_2 = 'string'; EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new Boolean(true); var EXP_2 = new String('string'); EXP_1 + EXP_2",
+ "truestring",
+ eval("var EXP_1 = new Boolean(true); var EXP_2 = new String('string'); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new Object(true); var EXP_2 = new Object('string'); EXP_1 + EXP_2",
+ "truestring",
+ eval("var EXP_1 = new Object(true); var EXP_2 = new Object('string'); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new Object(new String('string')); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2",
+ "stringfalse",
+ eval("var EXP_1 = new Object(new String('string')); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new MyObject(true); var EXP_2 = new MyObject('string'); EXP_1 + EXP_2",
+ "truestring",
+ eval("var EXP_1 = new MyObject(true); var EXP_2 = new MyObject('string'); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new MyObject(new String('string')); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2",
+ "[object Object][object Object]",
+ eval("var EXP_1 = new MyObject(new String('string')); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new MyValuelessObject('string'); var EXP_2 = new MyValuelessObject(false); EXP_1 + EXP_2",
+ "stringfalse",
+ eval("var EXP_1 = new MyValuelessObject('string'); var EXP_2 = new MyValuelessObject(false); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new MyValuelessObject(new String('string')); var EXP_2 = new MyValuelessObject(new Boolean(false)); EXP_1 + EXP_2",
+ "stringfalse",
+ eval("var EXP_1 = new MyValuelessObject(new String('string')); var EXP_2 = new MyValuelessObject(new Boolean(false)); EXP_1 + EXP_2") );
+
+ // tests for number primitive, number object, Object object, a "MyObject" whose value is
+ // a number primitive and a number object, and "MyValuelessObject", where the value is
+ // set in the object's prototype, not the object itself.
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = 100; var EXP_2 = 'string'; EXP_1 + EXP_2",
+ "100string",
+ eval("var EXP_1 = 100; var EXP_2 = 'string'; EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new String('string'); var EXP_2 = new Number(-1); EXP_1 + EXP_2",
+ "string-1",
+ eval("var EXP_1 = new String('string'); var EXP_2 = new Number(-1); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new Object(100); var EXP_2 = new Object('string'); EXP_1 + EXP_2",
+ "100string",
+ eval("var EXP_1 = new Object(100); var EXP_2 = new Object('string'); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new Object(new String('string')); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2",
+ "string-1",
+ eval("var EXP_1 = new Object(new String('string')); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new MyObject(100); var EXP_2 = new MyObject('string'); EXP_1 + EXP_2",
+ "100string",
+ eval("var EXP_1 = new MyObject(100); var EXP_2 = new MyObject('string'); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new MyObject(new String('string')); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2",
+ "[object Object][object Object]",
+ eval("var EXP_1 = new MyObject(new String('string')); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new MyValuelessObject(100); var EXP_2 = new MyValuelessObject('string'); EXP_1 + EXP_2",
+ "100string",
+ eval("var EXP_1 = new MyValuelessObject(100); var EXP_2 = new MyValuelessObject('string'); EXP_1 + EXP_2") );
+
+ array[item++] = new TestCase( SECTION,
+ "var EXP_1 = new MyValuelessObject(new String('string')); var EXP_2 = new MyValuelessObject(new Number(-1)); EXP_1 + EXP_2",
+ "string-1",
+ eval("var EXP_1 = new MyValuelessObject(new String('string')); var EXP_2 = new MyValuelessObject(new Number(-1)); EXP_1 + EXP_2") );
+ return ( array );
+}
+function MyProtoValuelessObject() {
+ this.valueOf = new Function ( "" );
+ this.__proto__ = null;
+}
+function MyProtolessObject( value ) {
+ this.valueOf = new Function( "return this.value" );
+ this.__proto__ = null;
+ this.value = value;
+}
+function MyValuelessObject(value) {
+ this.__proto__ = new MyPrototypeObject(value);
+}
+function MyPrototypeObject(value) {
+ this.valueOf = new Function( "return this.value;" );
+ this.toString = new Function( "return (this.value + '');" );
+ this.value = value;
+}
+function MyObject( value ) {
+ this.valueOf = new Function( "return this.value" );
+ this.value = value;
+}
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