JSTests/mozilla/ecma_2/Expressions/StrictEquality-001.js

/**
 *  File Name:          StrictEquality-001.js
 *  ECMA Section:       11.9.6.js
 *  Description:
 *
 *  Author:             christine@netscape.com
 *  Date:               4 september 1998
 */
    var SECTION = "StrictEquality-001 - 11.9.6";
    var VERSION = "ECMA_2";
    var TITLE   =  "The strict equality operator ( === )";

    startTest();
    writeHeaderToLog( SECTION + " "+ TITLE);

    var tc = 0;
    var testcases = new Array();


    // 1. If Type(x) is different from Type(y) return false

    StrictEquality( true, new Boolean(true), false );
    StrictEquality( new Boolean(), false, false );
    StrictEquality( "", new String(),    false );
    StrictEquality( new String("hi"), "hi", false );

    // 2. If Type(x) is not Number go to step 9.

    // 3. If x is NaN, return false
    StrictEquality( NaN, NaN,   false );
    StrictEquality( NaN, 0,     false );

    // 4. If y is NaN, return false.
    StrictEquality( 0,  NaN,    false );

    // 5. if x is the same number value as y, return true

    // 6. If x is +0 and y is -0, return true

    // 7. If x is -0 and y is +0, return true

    // 8. Return false.


    // 9.  If Type(x) is String, then return true if x and y are exactly
    //  the same sequence of characters ( same length and same characters
    //  in corresponding positions.) Otherwise return false.

    //  10. If Type(x) is Boolean, return true if x and y are both true or
    //  both false. otherwise return false.


    //  Return true if x and y refer to the same object.  Otherwise return
    //  false.

    // Return false.


    test();

function StrictEquality( x, y, expect ) {
    result = ( x === y );

    testcases[tc++] = new TestCase(
        SECTION,
        x +" === " + y,
        expect,
        result );
}