54 lines
2.0 KiB
JavaScript
54 lines
2.0 KiB
JavaScript
var test = require('tape');
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var hasSymbols = require('has-symbols')();
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var utilInspect = require('../util.inspect');
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var repeat = require('string.prototype.repeat');
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var inspect = require('..');
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test('inspect', function (t) {
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t.plan(3);
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var obj = [{ inspect: function xyzInspect() { return '!XYZ¡'; } }, []];
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t.equal(inspect(obj), '[ !XYZ¡, [] ]');
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t.equal(inspect(obj, { customInspect: true }), '[ !XYZ¡, [] ]');
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t.equal(inspect(obj, { customInspect: false }), '[ { inspect: [Function: xyzInspect] }, [] ]');
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});
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test('inspect custom symbol', { skip: !hasSymbols || !utilInspect || !utilInspect.custom }, function (t) {
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t.plan(3);
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var obj = { inspect: function stringInspect() { return 'string'; } };
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obj[utilInspect.custom] = function custom() { return 'symbol'; };
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t.equal(inspect([obj, []]), '[ ' + (utilInspect.custom ? 'symbol' : 'string') + ', [] ]');
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t.equal(inspect([obj, []], { customInspect: true }), '[ ' + (utilInspect.custom ? 'symbol' : 'string') + ', [] ]');
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t.equal(
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inspect([obj, []], { customInspect: false }),
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'[ { inspect: [Function: stringInspect]' + (utilInspect.custom ? ', [' + inspect(utilInspect.custom) + ']: [Function: custom]' : '') + ' }, [] ]'
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);
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});
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test('symbols', { skip: !hasSymbols }, function (t) {
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t.plan(2);
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var obj = { a: 1 };
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obj[Symbol('test')] = 2;
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obj[Symbol.iterator] = 3;
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Object.defineProperty(obj, Symbol('non-enum'), {
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enumerable: false,
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value: 4
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});
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t.equal(inspect(obj), '{ a: 1, [Symbol(test)]: 2, [Symbol(Symbol.iterator)]: 3 }', 'object with symbols');
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t.equal(inspect([obj, []]), '[ { a: 1, [Symbol(test)]: 2, [Symbol(Symbol.iterator)]: 3 }, [] ]', 'object with symbols');
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});
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test('maxStringLength', function (t) {
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t.equal(
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inspect([repeat('a', 1e8)], { maxStringLength: 10 }),
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'[ \'aaaaaaaaaa\'... 99999990 more characters ]',
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'maxStringLength option limits output'
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);
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t.end();
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});
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