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 | // Test the exponential notation output. |
| 29 | assertEquals("1e+27", (1.2345e+27).toPrecision(1)); |
| 30 | assertEquals("1.2e+27", (1.2345e+27).toPrecision(2)); |
| 31 | assertEquals("1.23e+27", (1.2345e+27).toPrecision(3)); |
| 32 | assertEquals("1.234e+27", (1.2345e+27).toPrecision(4)); |
| 33 | assertEquals("1.2345e+27", (1.2345e+27).toPrecision(5)); |
| 34 | assertEquals("1.23450e+27", (1.2345e+27).toPrecision(6)); |
| 35 | assertEquals("1.234500e+27", (1.2345e+27).toPrecision(7)); |
| 36 | |
| 37 | assertEquals("-1e+27", (-1.2345e+27).toPrecision(1)); |
| 38 | assertEquals("-1.2e+27", (-1.2345e+27).toPrecision(2)); |
| 39 | assertEquals("-1.23e+27", (-1.2345e+27).toPrecision(3)); |
| 40 | assertEquals("-1.234e+27", (-1.2345e+27).toPrecision(4)); |
| 41 | assertEquals("-1.2345e+27", (-1.2345e+27).toPrecision(5)); |
| 42 | assertEquals("-1.23450e+27", (-1.2345e+27).toPrecision(6)); |
| 43 | assertEquals("-1.234500e+27", (-1.2345e+27).toPrecision(7)); |
| 44 | |
| 45 | |
| 46 | // Test the fixed notation output. |
| 47 | assertEquals("7", (7).toPrecision(1)); |
| 48 | assertEquals("7.0", (7).toPrecision(2)); |
| 49 | assertEquals("7.00", (7).toPrecision(3)); |
| 50 | |
| 51 | assertEquals("-7", (-7).toPrecision(1)); |
| 52 | assertEquals("-7.0", (-7).toPrecision(2)); |
| 53 | assertEquals("-7.00", (-7).toPrecision(3)); |
| 54 | |
| 55 | assertEquals("9e+1", (91).toPrecision(1)); |
| 56 | assertEquals("91", (91).toPrecision(2)); |
| 57 | assertEquals("91.0", (91).toPrecision(3)); |
| 58 | assertEquals("91.00", (91).toPrecision(4)); |
| 59 | |
| 60 | assertEquals("-9e+1", (-91).toPrecision(1)); |
| 61 | assertEquals("-91", (-91).toPrecision(2)); |
| 62 | assertEquals("-91.0", (-91).toPrecision(3)); |
| 63 | assertEquals("-91.00", (-91).toPrecision(4)); |
| 64 | |
| 65 | assertEquals("9e+1", (91.1234).toPrecision(1)); |
| 66 | assertEquals("91", (91.1234).toPrecision(2)); |
| 67 | assertEquals("91.1", (91.1234).toPrecision(3)); |
| 68 | assertEquals("91.12", (91.1234).toPrecision(4)); |
| 69 | assertEquals("91.123", (91.1234).toPrecision(5)); |
| 70 | assertEquals("91.1234", (91.1234).toPrecision(6)); |
| 71 | assertEquals("91.12340", (91.1234).toPrecision(7)); |
| 72 | assertEquals("91.123400", (91.1234).toPrecision(8)); |
| 73 | |
| 74 | assertEquals("-9e+1", (-91.1234).toPrecision(1)); |
| 75 | assertEquals("-91", (-91.1234).toPrecision(2)); |
| 76 | assertEquals("-91.1", (-91.1234).toPrecision(3)); |
| 77 | assertEquals("-91.12", (-91.1234).toPrecision(4)); |
| 78 | assertEquals("-91.123", (-91.1234).toPrecision(5)); |
| 79 | assertEquals("-91.1234", (-91.1234).toPrecision(6)); |
| 80 | assertEquals("-91.12340", (-91.1234).toPrecision(7)); |
| 81 | assertEquals("-91.123400", (-91.1234).toPrecision(8)); |