bigint-and-number-extremes.js (3830B)
1 // Copyright (C) 2017 Josh Wolfe. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 description: Comparisons of BigInt and Number values 5 esid: sec-abstract-relational-comparison 6 info: | 7 ... 8 3. If both px and py are Strings, then 9 ... 10 4. Else, 11 a. Let nx be ? ToNumeric(px). Because px and py are primitive values evaluation order is not important. 12 b. Let ny be ? ToNumeric(py). 13 c. If Type(nx) is Type(ny), return ? Type(nx)::lessThan(nx, ny). 14 d. Assert: Type(nx) is BigInt and Type(ny) is Number, or if Type(nx) is Number and Type(ny) is BigInt. 15 e. If x or y are any of NaN, return undefined. 16 f. If x is -∞, or y is +∞, return true. 17 g. If x is +∞, or y is -∞, return false. 18 h. If the mathematical value of nx is less than the mathematical value of ny, return true, otherwise return false. 19 features: [BigInt] 20 ---*/ 21 assert.sameValue(1n <= Number.MAX_VALUE, true, 'The result of (1n <= Number.MAX_VALUE) is true'); 22 assert.sameValue(Number.MAX_VALUE <= 1n, false, 'The result of (Number.MAX_VALUE <= 1n) is false'); 23 24 assert.sameValue( 25 1n <= -Number.MAX_VALUE, 26 false, 27 'The result of (1n <= -Number.MAX_VALUE) is false' 28 ); 29 30 assert.sameValue(-Number.MAX_VALUE <= 1n, true, 'The result of (-Number.MAX_VALUE <= 1n) is true'); 31 32 assert.sameValue( 33 0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn <= Number.MAX_VALUE, 34 true, 35 'The result of (0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn <= Number.MAX_VALUE) is true' 36 ); 37 38 assert.sameValue( 39 Number.MAX_VALUE <= 0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn, 40 false, 41 'The result of (Number.MAX_VALUE <= 0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn) is false' 42 ); 43 44 assert.sameValue( 45 0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001n <= Number.MAX_VALUE, 46 false, 47 'The result of (0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001n <= Number.MAX_VALUE) is false' 48 ); 49 50 assert.sameValue( 51 Number.MAX_VALUE <= 0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001n, 52 true, 53 'The result of (Number.MAX_VALUE <= 0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001n) is true' 54 ); 55 56 reportCompare(0, 0);