src/v8/test/mjsunit/number-tostring.js

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  27
  28 // ----------------------------------------------------------------------
  29 // toString
  30 assertEquals("NaN", (NaN).toString());
  31 assertEquals("Infinity", (1/0).toString());
  32 assertEquals("-Infinity", (-1/0).toString());
  33 assertEquals("0", (0).toString());
  34 assertEquals("9", (9).toString());
  35 assertEquals("90", (90).toString());
  36 assertEquals("90.12", (90.12).toString());
  37 assertEquals("0.1", (0.1).toString());
  38 assertEquals("0.01", (0.01).toString());
  39 assertEquals("0.0123", (0.0123).toString());
  40 assertEquals("111111111111111110000", (111111111111111111111).toString());
  41 assertEquals("1.1111111111111111e+21", (1111111111111111111111).toString());
  42 assertEquals("1.1111111111111111e+22", (11111111111111111111111).toString());
  43 assertEquals("0.00001", (0.00001).toString());
  44 assertEquals("0.000001", (0.000001).toString());
  45 assertEquals("1e-7", (0.0000001).toString());
  46 assertEquals("1.2e-7", (0.00000012).toString());
  47 assertEquals("1.23e-7", (0.000000123).toString());
  48 assertEquals("1e-8", (0.00000001).toString());
  49 assertEquals("1.2e-8", (0.000000012).toString());
  50 assertEquals("1.23e-8", (0.0000000123).toString());
  51
  52 assertEquals("0", (-0).toString());
  53 assertEquals("-9", (-9).toString());
  54 assertEquals("-90", (-90).toString());
  55 assertEquals("-90.12", (-90.12).toString());
  56 assertEquals("-0.1", (-0.1).toString());
  57 assertEquals("-0.01", (-0.01).toString());
  58 assertEquals("-0.0123", (-0.0123).toString());
  59 assertEquals("-111111111111111110000", (-111111111111111111111).toString());
  60 assertEquals("-1.1111111111111111e+21", (-1111111111111111111111).toString());
  61 assertEquals("-1.1111111111111111e+22", (-11111111111111111111111).toString());
  62 assertEquals("-0.00001", (-0.00001).toString());
  63 assertEquals("-0.000001", (-0.000001).toString());
  64 assertEquals("-1e-7", (-0.0000001).toString());
  65 assertEquals("-1.2e-7", (-0.00000012).toString());
  66 assertEquals("-1.23e-7", (-0.000000123).toString());
  67 assertEquals("-1e-8", (-0.00000001).toString());
  68 assertEquals("-1.2e-8", (-0.000000012).toString());
  69 assertEquals("-1.23e-8", (-0.0000000123).toString());
  70
  71 assertEquals("NaN", (NaN).toString(16));
  72 assertEquals("Infinity", (1/0).toString(16));
  73 assertEquals("-Infinity", (-1/0).toString(16));
  74 assertEquals("0", (0).toString(16));
  75 assertEquals("9", (9).toString(16));
  76 assertEquals("5a", (90).toString(16));
  77 assertEquals("5a.1eb851eb852", (90.12).toString(16));
  78 assertEquals("0.1999999999999a", (0.1).toString(16));
  79 assertEquals("0.028f5c28f5c28f6", (0.01).toString(16));
  80 assertEquals("0.032617c1bda511a", (0.0123).toString(16));
  81 assertEquals("605f9f6dd18bc8000", (111111111111111111111).toString(16));
  82 assertEquals("3c3bc3a4a2f75c0000", (1111111111111111111111).toString(16));
  83 assertEquals("25a55a46e5da9a00000", (11111111111111111111111).toString(16));
  84 assertEquals("0.0000a7c5ac471b4788", (0.00001).toString(16));
  85 assertEquals("0.000010c6f7a0b5ed8d", (0.000001).toString(16));
  86 assertEquals("0.000001ad7f29abcaf48", (0.0000001).toString(16));
  87 assertEquals("0.000002036565348d256", (0.00000012).toString(16));
  88 assertEquals("0.0000021047ee22aa466", (0.000000123).toString(16));
  89 assertEquals("0.0000002af31dc4611874", (0.00000001).toString(16));
  90 assertEquals("0.000000338a23b87483be", (0.000000012).toString(16));
  91 assertEquals("0.00000034d3fe36aaa0a2", (0.0000000123).toString(16));
  92
  93 assertEquals("0", (-0).toString(16));
  94 assertEquals("-9", (-9).toString(16));
  95 assertEquals("-5a", (-90).toString(16));
  96 assertEquals("-5a.1eb851eb852", (-90.12).toString(16));
  97 assertEquals("-0.1999999999999a", (-0.1).toString(16));
  98 assertEquals("-0.028f5c28f5c28f6", (-0.01).toString(16));
  99 assertEquals("-0.032617c1bda511a", (-0.0123).toString(16));
 100 assertEquals("-605f9f6dd18bc8000", (-111111111111111111111).toString(16));
 101 assertEquals("-3c3bc3a4a2f75c0000", (-1111111111111111111111).toString(16));
 102 assertEquals("-25a55a46e5da9a00000", (-11111111111111111111111).toString(16));
 103 assertEquals("-0.0000a7c5ac471b4788", (-0.00001).toString(16));
 104 assertEquals("-0.000010c6f7a0b5ed8d", (-0.000001).toString(16));
 105 assertEquals("-0.000001ad7f29abcaf48", (-0.0000001).toString(16));
 106 assertEquals("-0.000002036565348d256", (-0.00000012).toString(16));
 107 assertEquals("-0.0000021047ee22aa466", (-0.000000123).toString(16));
 108 assertEquals("-0.0000002af31dc4611874", (-0.00000001).toString(16));
 109 assertEquals("-0.000000338a23b87483be", (-0.000000012).toString(16));
 110 assertEquals("-0.00000034d3fe36aaa0a2", (-0.0000000123).toString(16));
 111
 112 assertEquals("4294967296", Math.pow(2,32).toString());
 113 assertEquals("ffffffff", (Math.pow(2,32)-1).toString(16));
 114 assertEquals("11111111111111111111111111111111", (Math.pow(2,32)-1).toString(2));
 115 assertEquals("5yc1z", (10000007).toString(36));
 116 assertEquals("0", (0).toString(36));
 117 assertEquals("0", (0).toString(16));
 118 assertEquals("0", (0).toString(10));
 119 assertEquals("0", (0).toString(8));
 120 assertEquals("0", (0).toString(2));
 121 assertEquals("100000000000000000000000000000000", Math.pow(2,32).toString(2));
 122 assertEquals("100000000000000000000000000000001", (Math.pow(2,32) + 1).toString(2));
 123 assertEquals("100000000000080", (0x100000000000081).toString(16));
 124 assertEquals("1000000000000100", (-(-'0x1000000000000081')).toString(16));
 125 assertEquals("1000000000000000", (-(-'0x1000000000000080')).toString(16));
 126 assertEquals("1000000000000000", (-(-'0x100000000000007F')).toString(16));
 127 assertEquals("100000000000000000000000000000000000000000000000010000000", (0x100000000000081).toString(2));
 128 assertEquals("-11111111111111111111111111111111", (-(Math.pow(2,32)-1)).toString(2));
 129 assertEquals("-5yc1z", (-10000007).toString(36));
 130 assertEquals("-100000000000000000000000000000000", (-Math.pow(2,32)).toString(2));
 131 assertEquals("-100000000000000000000000000000001", (-(Math.pow(2,32) + 1)).toString(2));
 132 assertEquals("-100000000000080", (-0x100000000000081).toString(16));
 133 assertEquals("-100000000000000000000000000000000000000000000000010000000", (-0x100000000000081).toString(2));
 134 assertEquals("1000", (1000).toString());
 135 assertEquals("0.00001", (0.00001).toString());
 136 assertEquals("1000000000000000100", (1000000000000000128).toString());
 137 assertEquals("1e+21", (1000000000000000012800).toString());
 138 assertEquals("-1e+21", (-1000000000000000012800).toString());
 139 assertEquals("1e-7", (0.0000001).toString());
 140 assertEquals("-1e-7", (-0.0000001).toString());
 141 assertEquals("1.0000000000000001e+21", (1000000000000000128000).toString());
 142 assertEquals("0.000001", (0.000001).toString());
 143 assertEquals("1e-7", (0.0000001).toString());
 144 assertEquals("8.8", (8.5).toString(16));
 145 assertEquals("-8.8", (-8.5).toString(16));
 146
 147 // ----------------------------------------------------------------------
 148 // toFixed
 149 assertEquals("NaN", (NaN).toFixed(2));
 150 assertEquals("Infinity", (1/0).toFixed(2));
 151 assertEquals("-Infinity", (-1/0).toFixed(2));
 152
 153 assertEquals("1.1111111111111111e+21", (1111111111111111111111).toFixed(8));
 154 assertEquals("0.1", (0.1).toFixed(1));
 155 assertEquals("0.10", (0.1).toFixed(2));
 156 assertEquals("0.100", (0.1).toFixed(3));
 157 assertEquals("0.01", (0.01).toFixed(2));
 158 assertEquals("0.010", (0.01).toFixed(3));
 159 assertEquals("0.0100", (0.01).toFixed(4));
 160 assertEquals("0.00", (0.001).toFixed(2));
 161 assertEquals("0.001", (0.001).toFixed(3));
 162 assertEquals("0.0010", (0.001).toFixed(4));
 163 assertEquals("1.0000", (1).toFixed(4));
 164 assertEquals("1.0", (1).toFixed(1));
 165 assertEquals("1", (1).toFixed(0));
 166 assertEquals("12", (12).toFixed(0));
 167 assertEquals("1", (1.1).toFixed(0));
 168 assertEquals("12", (12.1).toFixed(0));
 169 assertEquals("1", (1.12).toFixed(0));
 170 assertEquals("12", (12.12).toFixed(0));
 171 assertEquals("0.0000006", (0.0000006).toFixed(7));
 172 assertEquals("0.00000006", (0.00000006).toFixed(8));
 173 assertEquals("0.000000060", (0.00000006).toFixed(9));
 174 assertEquals("0.0000000600", (0.00000006).toFixed(10));
 175 assertEquals("0", (0).toFixed(0));
 176 assertEquals("0.0", (0).toFixed(1));
 177 assertEquals("0.00", (0).toFixed(2));
 178
 179 assertEquals("-1.1111111111111111e+21", (-1111111111111111111111).toFixed(8));
 180 assertEquals("-0.1", (-0.1).toFixed(1));
 181 assertEquals("-0.10", (-0.1).toFixed(2));
 182 assertEquals("-0.100", (-0.1).toFixed(3));
 183 assertEquals("-0.01", (-0.01).toFixed(2));
 184 assertEquals("-0.010", (-0.01).toFixed(3));
 185 assertEquals("-0.0100", (-0.01).toFixed(4));
 186 assertEquals("-0.00", (-0.001).toFixed(2));
 187 assertEquals("-0.001", (-0.001).toFixed(3));
 188 assertEquals("-0.0010", (-0.001).toFixed(4));
 189 assertEquals("-1.0000", (-1).toFixed(4));
 190 assertEquals("-1.0", (-1).toFixed(1));
 191 assertEquals("-1", (-1).toFixed(0));
 192 assertEquals("-1", (-1.1).toFixed(0));
 193 assertEquals("-12", (-12.1).toFixed(0));
 194 assertEquals("-1", (-1.12).toFixed(0));
 195 assertEquals("-12", (-12.12).toFixed(0));
 196 assertEquals("-0.0000006", (-0.0000006).toFixed(7));
 197 assertEquals("-0.00000006", (-0.00000006).toFixed(8));
 198 assertEquals("-0.000000060", (-0.00000006).toFixed(9));
 199 assertEquals("-0.0000000600", (-0.00000006).toFixed(10));
 200 assertEquals("0", (-0).toFixed(0));
 201 assertEquals("0.0", (-0).toFixed(1));
 202 assertEquals("0.00", (-0).toFixed(2));
 203
 204 assertEquals("1000", (1000).toFixed());
 205 assertEquals("0", (0.00001).toFixed());
 206 assertEquals("0.00001", (0.00001).toFixed(5));
 207 assertEquals("0.00000000000000000010", (0.0000000000000000001).toFixed(20));
 208 assertEquals("0.00001000000000000", (0.00001).toFixed(17));
 209 assertEquals("1.00000000000000000", (1).toFixed(17));
 210 assertEquals("1000000000000000128", (1000000000000000128).toFixed());
 211 assertEquals("100000000000000128.0", (100000000000000128).toFixed(1));
 212 assertEquals("10000000000000128.00", (10000000000000128).toFixed(2));
 213 assertEquals("10000000000000128.00000000000000000000", (10000000000000128).toFixed(20));
 214 assertEquals("0", (0).toFixed());
 215 assertEquals("-42.000", ((-42).toFixed(3)));
 216 assertEquals("-1000000000000000128", (-1000000000000000128).toFixed());
 217 assertEquals("-0.00000000000000000010", (-0.0000000000000000001).toFixed(20));
 218 assertEquals("0.12312312312312299889", (0.123123123123123).toFixed(20));
 219 // Test that we round up even when the last digit generated is even.
 220 // dtoa does not do this in its original form.
 221 assertEquals("1", 0.5.toFixed(0), "0.5.toFixed(0)");
 222 assertEquals("-1", (-0.5).toFixed(0), "(-0.5).toFixed(0)");
 223 assertEquals("1.3", 1.25.toFixed(1), "1.25.toFixed(1)");
 224 // This is bizare, but Spidermonkey and KJS behave the same.
 225 assertEquals("234.2040", (234.20405).toFixed(4), "234.2040.toFixed(4)");
 226 assertEquals("234.2041", (234.2040506).toFixed(4));
 227
 228 // ----------------------------------------------------------------------
 229 // toExponential
 230 assertEquals("1e+0", (1).toExponential());
 231 assertEquals("1.1e+1", (11).toExponential());
 232 assertEquals("1.12e+2", (112).toExponential());
 233 assertEquals("1e+0", (1).toExponential(0));
 234 assertEquals("1e+1", (11).toExponential(0));
 235 assertEquals("1e+2", (112).toExponential(0));
 236 assertEquals("1.0e+0", (1).toExponential(1));
 237 assertEquals("1.1e+1", (11).toExponential(1));
 238 assertEquals("1.1e+2", (112).toExponential(1));
 239 assertEquals("1.00e+0", (1).toExponential(2));
 240 assertEquals("1.10e+1", (11).toExponential(2));
 241 assertEquals("1.12e+2", (112).toExponential(2));
 242 assertEquals("1.000e+0", (1).toExponential(3));
 243 assertEquals("1.100e+1", (11).toExponential(3));
 244 assertEquals("1.120e+2", (112).toExponential(3));
 245 assertEquals("1e-1", (0.1).toExponential());
 246 assertEquals("1.1e-1", (0.11).toExponential());
 247 assertEquals("1.12e-1", (0.112).toExponential());
 248 assertEquals("1e-1", (0.1).toExponential(0));
 249 assertEquals("1e-1", (0.11).toExponential(0));
 250 assertEquals("1e-1", (0.112).toExponential(0));
 251 assertEquals("1.0e-1", (0.1).toExponential(1));
 252 assertEquals("1.1e-1", (0.11).toExponential(1));
 253 assertEquals("1.1e-1", (0.112).toExponential(1));
 254 assertEquals("1.00e-1", (0.1).toExponential(2));
 255 assertEquals("1.10e-1", (0.11).toExponential(2));
 256 assertEquals("1.12e-1", (0.112).toExponential(2));
 257 assertEquals("1.000e-1", (0.1).toExponential(3));
 258 assertEquals("1.100e-1", (0.11).toExponential(3));
 259 assertEquals("1.120e-1", (0.112).toExponential(3));
 260
 261 assertEquals("-1e+0", (-1).toExponential());
 262 assertEquals("-1.1e+1", (-11).toExponential());
 263 assertEquals("-1.12e+2", (-112).toExponential());
 264 assertEquals("-1e+0", (-1).toExponential(0));
 265 assertEquals("-1e+1", (-11).toExponential(0));
 266 assertEquals("-1e+2", (-112).toExponential(0));
 267 assertEquals("-1.0e+0", (-1).toExponential(1));
 268 assertEquals("-1.1e+1", (-11).toExponential(1));
 269 assertEquals("-1.1e+2", (-112).toExponential(1));
 270 assertEquals("-1.00e+0", (-1).toExponential(2));
 271 assertEquals("-1.10e+1", (-11).toExponential(2));
 272 assertEquals("-1.12e+2", (-112).toExponential(2));
 273 assertEquals("-1.000e+0", (-1).toExponential(3));
 274 assertEquals("-1.100e+1", (-11).toExponential(3));
 275 assertEquals("-1.120e+2", (-112).toExponential(3));
 276 assertEquals("-1e-1", (-0.1).toExponential());
 277 assertEquals("-1.1e-1", (-0.11).toExponential());
 278 assertEquals("-1.12e-1", (-0.112).toExponential());
 279 assertEquals("-1e-1", (-0.1).toExponential(0));
 280 assertEquals("-1e-1", (-0.11).toExponential(0));
 281 assertEquals("-1e-1", (-0.112).toExponential(0));
 282 assertEquals("-1.0e-1", (-0.1).toExponential(1));
 283 assertEquals("-1.1e-1", (-0.11).toExponential(1));
 284 assertEquals("-1.1e-1", (-0.112).toExponential(1));
 285 assertEquals("-1.00e-1", (-0.1).toExponential(2));
 286 assertEquals("-1.10e-1", (-0.11).toExponential(2));
 287 assertEquals("-1.12e-1", (-0.112).toExponential(2));
 288 assertEquals("-1.000e-1", (-0.1).toExponential(3));
 289 assertEquals("-1.100e-1", (-0.11).toExponential(3));
 290 assertEquals("-1.120e-1", (-0.112).toExponential(3));
 291
 292 assertEquals("NaN", (NaN).toExponential(2));
 293 assertEquals("Infinity", (Infinity).toExponential(2));
 294 assertEquals("-Infinity", (-Infinity).toExponential(2));
 295 assertEquals("1e+0", (1).toExponential(0));
 296 assertEquals("0e+0", (0).toExponential());
 297 assertEquals("0.00e+0", (0).toExponential(2));
 298 assertEquals("1e+1", (11.2356).toExponential(0));
 299 assertEquals("1.1236e+1", (11.2356).toExponential(4));
 300 assertEquals("1.1236e-4", (0.000112356).toExponential(4));
 301 assertEquals("-1.1236e-4", (-0.000112356).toExponential(4));
 302 assertEquals("1.12356e-4", (0.000112356).toExponential());
 303 assertEquals("-1.12356e-4", (-0.000112356).toExponential());
 304
 305 // ----------------------------------------------------------------------
 306 // toPrecision
 307 assertEquals("NaN", (NaN).toPrecision(1));
 308 assertEquals("Infinity", (Infinity).toPrecision(2));
 309 assertEquals("-Infinity", (-Infinity).toPrecision(2));
 310 assertEquals("0.000555000000000000", (0.000555).toPrecision(15));
 311 assertEquals("5.55000000000000e-7", (0.000000555).toPrecision(15));
 312 assertEquals("-5.55000000000000e-7", (-0.000000555).toPrecision(15));
 313 assertEquals("1e+8", (123456789).toPrecision(1));
 314 assertEquals("123456789", (123456789).toPrecision(9));
 315 assertEquals("1.2345679e+8", (123456789).toPrecision(8));
 316 assertEquals("1.234568e+8", (123456789).toPrecision(7));
 317 assertEquals("-1.234568e+8", (-123456789).toPrecision(7));
 318 assertEquals("-1.2e-9", Number(-.0000000012345).toPrecision(2));
 319 assertEquals("-1.2e-8", Number(-.000000012345).toPrecision(2));
 320 assertEquals("-1.2e-7", Number(-.00000012345).toPrecision(2));
 321 assertEquals("-0.0000012", Number(-.0000012345).toPrecision(2));
 322 assertEquals("-0.000012", Number(-.000012345).toPrecision(2));
 323 assertEquals("-0.00012", Number(-.00012345).toPrecision(2));
 324 assertEquals("-0.0012", Number(-.0012345).toPrecision(2));
 325 assertEquals("-0.012", Number(-.012345).toPrecision(2));
 326 assertEquals("-0.12", Number(-.12345).toPrecision(2));
 327 assertEquals("-1.2", Number(-1.2345).toPrecision(2));
 328 assertEquals("-12", Number(-12.345).toPrecision(2));
 329 assertEquals("-1.2e+2", Number(-123.45).toPrecision(2));
 330 assertEquals("-1.2e+3", Number(-1234.5).toPrecision(2));
 331 assertEquals("-1.2e+4", Number(-12345).toPrecision(2));
 332 assertEquals("-1.235e+4", Number(-12345.67).toPrecision(4));
 333 assertEquals("-1.234e+4", Number(-12344.67).toPrecision(4));
 334 // Test that we round up even when the last digit generated is even.
 335 // dtoa does not do this in its original form.
 336 assertEquals("1.3", 1.25.toPrecision(2), "1.25.toPrecision(2)");
 337 assertEquals("1.4", 1.35.toPrecision(2), "1.35.toPrecision(2)");