js/tests/js1_2/statements/switch2.js

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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  38
  39 gTestfile = 'switch2.js';
  40
  41 /**
  42    Filename:     switch2.js
  43    Description:  'Tests the switch statement'
  44
  45    http://scopus.mcom.com/bugsplat/show_bug.cgi?id=323696
  46
  47    Author:       Norris Boyd
  48    Date:         July 31, 1998
  49 */
  50
  51 var SECTION = 'As described in Netscape doc "Whats new in JavaScript 1.2"';
  52 var VERSION = 'no version';
  53 var TITLE   = 'statements: switch';
  54 var BUGNUMBER="323626";
  55
  56 startTest();
  57 writeHeaderToLog("Executing script: switch2.js");
  58 writeHeaderToLog( SECTION + " "+ TITLE);
  59
  60 // test defaults not at the end; regression test for a bug that
  61 // nearly made it into 4.06
  62 function f0(i) {
  63   switch(i) {
  64   default:
  65   case "a":
  66   case "b":
  67     return "ab*"
  68       case "c":
  69     return "c";
  70   case "d":
  71     return "d";
  72   }
  73   return "";
  74 }
  75 new TestCase(SECTION, 'switch statement',
  76              f0("a"), "ab*");
  77
  78 new TestCase(SECTION, 'switch statement',
  79              f0("b"), "ab*");
  80
  81 new TestCase(SECTION, 'switch statement',
  82              f0("*"), "ab*");
  83
  84 new TestCase(SECTION, 'switch statement',
  85              f0("c"), "c");
  86
  87 new TestCase(SECTION, 'switch statement',
  88              f0("d"), "d");
  89
  90 function f1(i) {
  91   switch(i) {
  92   case "a":
  93   case "b":
  94   default:
  95     return "ab*"
  96       case "c":
  97     return "c";
  98   case "d":
  99     return "d";
 100   }
 101   return "";
 102 }
 103
 104 new TestCase(SECTION, 'switch statement',
 105              f1("a"), "ab*");
 106
 107 new TestCase(SECTION, 'switch statement',
 108              f1("b"), "ab*");
 109
 110 new TestCase(SECTION, 'switch statement',
 111              f1("*"), "ab*");
 112
 113 new TestCase(SECTION, 'switch statement',
 114              f1("c"), "c");
 115
 116 new TestCase(SECTION, 'switch statement',
 117              f1("d"), "d");
 118
 119 // Switch on integer; will use TABLESWITCH opcode in C engine
 120 function f2(i) {
 121   switch (i) {
 122   case 0:
 123   case 1:
 124     return 1;
 125   case 2:
 126     return 2;
 127   }
 128   // with no default, control will fall through
 129   return 3;
 130 }
 131
 132 new TestCase(SECTION, 'switch statement',
 133              f2(0), 1);
 134
 135 new TestCase(SECTION, 'switch statement',
 136              f2(1), 1);
 137
 138 new TestCase(SECTION, 'switch statement',
 139              f2(2), 2);
 140
 141 new TestCase(SECTION, 'switch statement',
 142              f2(3), 3);
 143
 144 // empty switch: make sure expression is evaluated
 145 var se = 0;
 146 switch (se = 1) {
 147 }
 148 new TestCase(SECTION, 'switch statement',
 149              se, 1);
 150
 151 // only default
 152 se = 0;
 153 switch (se) {
 154 default:
 155   se = 1;
 156 }
 157 new TestCase(SECTION, 'switch statement',
 158              se, 1);
 159
 160 // in loop, break should only break out of switch
 161 se = 0;
 162 for (var i=0; i < 2; i++) {
 163   switch (i) {
 164   case 0:
 165   case 1:
 166     break;
 167   }
 168   se = 1;
 169 }
 170 new TestCase(SECTION, 'switch statement',
 171              se, 1);
 172
 173 // test "fall through"
 174 se = 0;
 175 i = 0;
 176 switch (i) {
 177 case 0:
 178   se++;
 179   /* fall through */
 180 case 1:
 181   se++;
 182   break;
 183 }
 184 new TestCase(SECTION, 'switch statement',
 185              se, 2);
 186 print("hi");
 187
 188 test();
 189
 190 // Needed: tests for evaluation time of case expressions.
 191 // This issue was under debate at ECMA, so postponing for now.
 192