Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1 | // Copyright 2008 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 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()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 58 | assertEquals("-0.0123", (-0.0123).toString()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 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)); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 125 | assertEquals("1000000000000000", (-(-'0x1000000000000080')).toString(16)); |
| 126 | assertEquals("1000000000000000", (-(-'0x100000000000007F')).toString(16)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 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)"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 222 | assertEquals("-1", (-0.5).toFixed(0), "(-0.5).toFixed(0)"); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 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)"); |