js/src/tests/ecma/Math/15.8.2.7.js

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  38
  39
  40 /**
  41    File Name:          15.8.2.7.js
  42    ECMA Section:       15.8.2.7 cos( x )
  43    Description:        return an approximation to the cosine of the
  44    argument.  argument is expressed in radians
  45    Author:             christine@netscape.com
  46    Date:               7 july 1997
  47
  48 */
  49
  50 var SECTION = "15.8.2.7";
  51 var VERSION = "ECMA_1";
  52 startTest();
  53 var TITLE   = "Math.cos(x)";
  54
  55 writeHeaderToLog( SECTION + " "+ TITLE);
  56
  57 new TestCase( SECTION,
  58               "Math.cos.length",
  59               1,
  60               Math.cos.length );
  61
  62 new TestCase( SECTION,
  63               "Math.cos()",
  64               Number.NaN,
  65               Math.cos() );
  66
  67 new TestCase( SECTION,
  68               "Math.cos(void 0)",
  69               Number.NaN,
  70               Math.cos(void 0) );
  71
  72 new TestCase( SECTION,
  73               "Math.cos(false)",
  74               1,
  75               Math.cos(false) );
  76
  77 new TestCase( SECTION,
  78               "Math.cos(null)",
  79               1,
  80               Math.cos(null) );
  81
  82 new TestCase( SECTION,
  83               "Math.cos('0')",
  84               1,
  85               Math.cos('0') );
  86
  87 new TestCase( SECTION,
  88               "Math.cos('Infinity')",
  89               Number.NaN,
  90               Math.cos("Infinity") );
  91
  92 new TestCase( SECTION,
  93               "Math.cos('3.14159265359')",
  94               -1,
  95               Math.cos('3.14159265359') );
  96
  97 new TestCase( SECTION,
  98               "Math.cos(NaN)",
  99               Number.NaN,
 100               Math.cos(Number.NaN)        );
 101
 102 new TestCase( SECTION,
 103               "Math.cos(0)",
 104               1,
 105               Math.cos(0)                 );
 106
 107 new TestCase( SECTION,
 108               "Math.cos(-0)",
 109               1,
 110               Math.cos(-0)                );
 111
 112 new TestCase( SECTION,
 113               "Math.cos(Infinity)",
 114               Number.NaN,
 115               Math.cos(Number.POSITIVE_INFINITY) );
 116
 117 new TestCase( SECTION,
 118               "Math.cos(-Infinity)",
 119               Number.NaN,
 120               Math.cos(Number.NEGATIVE_INFINITY) );
 121
 122 new TestCase( SECTION,
 123               "Math.cos(0.7853981633974)",
 124               0.7071067811865,
 125               Math.cos(0.7853981633974)   );
 126
 127 new TestCase( SECTION,
 128               "Math.cos(1.570796326795)",
 129               0,
 130               Math.cos(1.570796326795)    );
 131
 132 new TestCase( SECTION,
 133               "Math.cos(2.356194490192)",
 134               -0.7071067811865,
 135               Math.cos(2.356194490192)    );
 136
 137 new TestCase( SECTION,
 138               "Math.cos(3.14159265359)",
 139               -1,
 140               Math.cos(3.14159265359)     );
 141
 142 new TestCase( SECTION,
 143               "Math.cos(3.926990816987)",
 144               -0.7071067811865,
 145               Math.cos(3.926990816987)    );
 146
 147 new TestCase( SECTION,
 148               "Math.cos(4.712388980385)",
 149               0,
 150               Math.cos(4.712388980385)    );
 151
 152 new TestCase( SECTION,
 153               "Math.cos(5.497787143782)",
 154               0.7071067811865,
 155               Math.cos(5.497787143782)    );
 156
 157 new TestCase( SECTION,
 158               "Math.cos(Math.PI*2)",
 159               1,
 160               Math.cos(Math.PI*2)         );
 161
 162 new TestCase( SECTION,
 163               "Math.cos(Math.PI/4)",
 164               Math.SQRT2/2,
 165               Math.cos(Math.PI/4)         );
 166
 167 new TestCase( SECTION,
 168               "Math.cos(Math.PI/2)",
 169               0,
 170               Math.cos(Math.PI/2)         );
 171
 172 new TestCase( SECTION,
 173               "Math.cos(3*Math.PI/4)",
 174               -Math.SQRT2/2,
 175               Math.cos(3*Math.PI/4)       );
 176
 177 new TestCase( SECTION,
 178               "Math.cos(Math.PI)",
 179               -1,
 180               Math.cos(Math.PI)           );
 181
 182 new TestCase( SECTION,
 183               "Math.cos(5*Math.PI/4)",
 184               -Math.SQRT2/2,
 185               Math.cos(5*Math.PI/4)       );
 186
 187 new TestCase( SECTION,
 188               "Math.cos(3*Math.PI/2)",
 189               0,
 190               Math.cos(3*Math.PI/2)       );
 191
 192 new TestCase( SECTION,
 193               "Math.cos(7*Math.PI/4)",
 194               Math.SQRT2/2,
 195               Math.cos(7*Math.PI/4)       );
 196
 197 new TestCase( SECTION,
 198               "Math.cos(Math.PI*2)",
 199               1,
 200               Math.cos(2*Math.PI)         );
 201
 202 new TestCase( SECTION,
 203               "Math.cos(-0.7853981633974)",
 204               0.7071067811865,
 205               Math.cos(-0.7853981633974)  );
 206
 207 new TestCase( SECTION,
 208               "Math.cos(-1.570796326795)",
 209               0,
 210               Math.cos(-1.570796326795)   );
 211
 212 new TestCase( SECTION,
 213               "Math.cos(-2.3561944901920)",
 214               -.7071067811865,
 215               Math.cos(2.3561944901920)   );
 216
 217 new TestCase( SECTION,
 218               "Math.cos(-3.14159265359)",
 219               -1,
 220               Math.cos(3.14159265359)     );
 221
 222 new TestCase( SECTION,
 223               "Math.cos(-3.926990816987)",
 224               -0.7071067811865,
 225               Math.cos(3.926990816987)    );
 226
 227 new TestCase( SECTION,
 228               "Math.cos(-4.712388980385)",
 229               0,
 230               Math.cos(4.712388980385)    );
 231
 232 new TestCase( SECTION,
 233               "Math.cos(-5.497787143782)",
 234               0.7071067811865,
 235               Math.cos(5.497787143782)    );
 236
 237 new TestCase( SECTION,
 238               "Math.cos(-6.28318530718)",
 239               1,
 240               Math.cos(6.28318530718)     );
 241
 242 new TestCase( SECTION,
 243               "Math.cos(-Math.PI/4)",
 244               Math.SQRT2/2,
 245               Math.cos(-Math.PI/4)        );
 246
 247 new TestCase( SECTION,
 248               "Math.cos(-Math.PI/2)",
 249               0,
 250               Math.cos(-Math.PI/2)        );
 251
 252 new TestCase( SECTION,
 253               "Math.cos(-3*Math.PI/4)",
 254               -Math.SQRT2/2,
 255               Math.cos(-3*Math.PI/4)      );
 256
 257 new TestCase( SECTION,
 258               "Math.cos(-Math.PI)",
 259               -1,
 260               Math.cos(-Math.PI)          );
 261
 262 new TestCase( SECTION,
 263               "Math.cos(-5*Math.PI/4)",
 264               -Math.SQRT2/2,
 265               Math.cos(-5*Math.PI/4)      );
 266
 267 new TestCase( SECTION,
 268               "Math.cos(-3*Math.PI/2)",
 269               0,
 270               Math.cos(-3*Math.PI/2)      );
 271
 272 new TestCase( SECTION,
 273               "Math.cos(-7*Math.PI/4)",
 274               Math.SQRT2/2,
 275               Math.cos(-7*Math.PI/4)      );
 276
 277 new TestCase( SECTION,
 278               "Math.cos(-Math.PI*2)",
 279               1,
 280               Math.cos(-Math.PI*2)        );
 281
 282 test();