Libraries/LibJS/Tests/Number.isSafeInteger.js at hosted

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serenity / Libraries / LibJS / Tests / Number.isSafeInteger.js

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Linus Groh LibJS: Add Number.isSafeInteger() 6y ago

5ecc7e6a

 1try {
 2    assert(Number.isSafeInteger.length === 1);
 3    assert(Number.isSafeInteger(0) === true);
 4    assert(Number.isSafeInteger(1) === true);
 5    assert(Number.isSafeInteger(2.0) === true);
 6    assert(Number.isSafeInteger(42) === true);
 7    assert(Number.isSafeInteger(Number.MAX_SAFE_INTEGER) === true);
 8    assert(Number.isSafeInteger(Number.MIN_SAFE_INTEGER) === true);
 9    assert(Number.isSafeInteger() === false);
10    assert(Number.isSafeInteger("1") === false);
11    assert(Number.isSafeInteger(2.1) === false);
12    assert(Number.isSafeInteger(42.42) === false);
13    assert(Number.isSafeInteger("") === false);
14    assert(Number.isSafeInteger([]) === false);
15    assert(Number.isSafeInteger(null) === false);
16    assert(Number.isSafeInteger(undefined) === false);
17    assert(Number.isSafeInteger(NaN) === false);
18    assert(Number.isSafeInteger(Infinity) === false);
19    assert(Number.isSafeInteger(-Infinity) === false);
20    assert(Number.isSafeInteger(Number.MAX_SAFE_INTEGER + 1) === false);
21    assert(Number.isSafeInteger(Number.MIN_SAFE_INTEGER - 1) === false);
22
23    console.log("PASS");
24} catch (e) {
25    console.log("FAIL: " + e.message);
26}