tests/mozilla/ecma_2/Statements/try-006.js

   1 /**
   2  *  File Name:          try-006.js
   3  *  ECMA Section:
   4  *  Description:        The try statement
   5  *
   6  *  Throw an exception from within a With block in a try block.  Verify
   7  *  that any expected exceptions are caught.
   8  *
   9  *  Author:             christine@netscape.com
  10  *  Date:               11 August 1998
  11  */
  12     var SECTION = "try-006";
  13     var VERSION = "ECMA_2";
  14     var TITLE   = "The try statement";
  15
  16     startTest();
  17     writeHeaderToLog( SECTION + " "+ TITLE);
  18
  19     var tc = 0;
  20     var testcases = new Array();
  21
  22     /**
  23      *  This is the "check" function for test objects that will
  24      *  throw an exception.
  25      */
  26     function throwException() {
  27         throw EXCEPTION_STRING +": " + this.valueOf();
  28     }
  29     var EXCEPTION_STRING = "Exception thrown:";
  30
  31     /**
  32      *  This is the "check" function for test objects that do not
  33      *  throw an exception
  34      */
  35     function noException() {
  36         return this.valueOf();
  37     }
  38
  39     /**
  40      *  Add test cases here
  41      */
  42     TryWith( new TryObject( "hello", throwException, true ));
  43     TryWith( new TryObject( "hola",  noException, false ));
  44
  45     /**
  46      *  Run the test.
  47      */
  48
  49     test();
  50
  51     /**
  52      *  This is the object that will be the "this" in a with block.
  53      */
  54     function TryObject( value, fun, exception ) {
  55         this.value = value;
  56         this.exception = exception;
  57
  58         this.valueOf = new Function ( "return this.value" );
  59         this.check = fun;
  60     }
  61
  62     /**
  63      *  This function has the try block that has a with block within it.
  64      *  Test cases are added in this function.  Within the with block, the
  65      *  object's "check" function is called.  If the test object's exception
  66      *  property is true, we expect the result to be the exception value.
  67      *  If exception is false, then we expect the result to be the value of
  68      *  the object.
  69      */
  70     function TryWith( object ) {
  71         try {
  72             with ( object ) {
  73                 result = check();
  74             }
  75         } catch ( e ) {
  76             result = e;
  77         }
  78
  79         testcases[tc++] = new TestCase(
  80             SECTION,
  81             "TryWith( " + object.value +" )",
  82             (object.exception ? EXCEPTION_STRING +": " + object.valueOf() : object.valueOf()),
  83             result );
  84     }