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)); 82 83
