212 lines
6.9 KiB
JavaScript
212 lines
6.9 KiB
JavaScript
'use strict';
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var inspect = require('../');
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var test = require('tape');
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var mockProperty = require('mock-property');
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var hasSymbols = require('has-symbols/shams')();
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var hasToStringTag = require('has-tostringtag/shams')();
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test('values', function (t) {
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t.plan(1);
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var obj = [{}, [], { 'a-b': 5 }];
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t.equal(inspect(obj), '[ {}, [], { \'a-b\': 5 } ]');
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});
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test('arrays with properties', function (t) {
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t.plan(1);
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var arr = [3];
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arr.foo = 'bar';
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var obj = [1, 2, arr];
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obj.baz = 'quux';
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obj.index = -1;
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t.equal(inspect(obj), '[ 1, 2, [ 3, foo: \'bar\' ], baz: \'quux\', index: -1 ]');
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});
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test('has', function (t) {
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t.plan(1);
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t.teardown(mockProperty(Object.prototype, 'hasOwnProperty', { 'delete': true }));
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t.equal(inspect({ a: 1, b: 2 }), '{ a: 1, b: 2 }');
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});
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test('indexOf seen', function (t) {
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t.plan(1);
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var xs = [1, 2, 3, {}];
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xs.push(xs);
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var seen = [];
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seen.indexOf = undefined;
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t.equal(
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inspect(xs, {}, 0, seen),
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'[ 1, 2, 3, {}, [Circular] ]'
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);
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});
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test('seen seen', function (t) {
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t.plan(1);
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var xs = [1, 2, 3];
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var seen = [xs];
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seen.indexOf = undefined;
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t.equal(
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inspect(xs, {}, 0, seen),
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'[Circular]'
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);
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});
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test('seen seen seen', function (t) {
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t.plan(1);
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var xs = [1, 2, 3];
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var seen = [5, xs];
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seen.indexOf = undefined;
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t.equal(
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inspect(xs, {}, 0, seen),
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'[Circular]'
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);
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});
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test('symbols', { skip: !hasSymbols }, function (t) {
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var sym = Symbol('foo');
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t.equal(inspect(sym), 'Symbol(foo)', 'Symbol("foo") should be "Symbol(foo)"');
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if (typeof sym === 'symbol') {
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// Symbol shams are incapable of differentiating boxed from unboxed symbols
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t.equal(inspect(Object(sym)), 'Object(Symbol(foo))', 'Object(Symbol("foo")) should be "Object(Symbol(foo))"');
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}
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t.test('toStringTag', { skip: !hasToStringTag }, function (st) {
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st.plan(1);
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var faker = {};
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faker[Symbol.toStringTag] = 'Symbol';
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st.equal(
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inspect(faker),
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'{ [Symbol(Symbol.toStringTag)]: \'Symbol\' }',
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'object lying about being a Symbol inspects as an object'
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);
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});
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t.end();
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});
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test('Map', { skip: typeof Map !== 'function' }, function (t) {
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var map = new Map();
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map.set({ a: 1 }, ['b']);
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map.set(3, NaN);
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var expectedString = 'Map (2) {' + inspect({ a: 1 }) + ' => ' + inspect(['b']) + ', 3 => NaN}';
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t.equal(inspect(map), expectedString, 'new Map([[{ a: 1 }, ["b"]], [3, NaN]]) should show size and contents');
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t.equal(inspect(new Map()), 'Map (0) {}', 'empty Map should show as empty');
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var nestedMap = new Map();
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nestedMap.set(nestedMap, map);
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t.equal(inspect(nestedMap), 'Map (1) {[Circular] => ' + expectedString + '}', 'Map containing a Map should work');
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t.end();
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});
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test('WeakMap', { skip: typeof WeakMap !== 'function' }, function (t) {
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var map = new WeakMap();
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map.set({ a: 1 }, ['b']);
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var expectedString = 'WeakMap { ? }';
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t.equal(inspect(map), expectedString, 'new WeakMap([[{ a: 1 }, ["b"]]]) should not show size or contents');
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t.equal(inspect(new WeakMap()), 'WeakMap { ? }', 'empty WeakMap should not show as empty');
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t.end();
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});
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test('Set', { skip: typeof Set !== 'function' }, function (t) {
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var set = new Set();
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set.add({ a: 1 });
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set.add(['b']);
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var expectedString = 'Set (2) {' + inspect({ a: 1 }) + ', ' + inspect(['b']) + '}';
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t.equal(inspect(set), expectedString, 'new Set([{ a: 1 }, ["b"]]) should show size and contents');
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t.equal(inspect(new Set()), 'Set (0) {}', 'empty Set should show as empty');
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var nestedSet = new Set();
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nestedSet.add(set);
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nestedSet.add(nestedSet);
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t.equal(inspect(nestedSet), 'Set (2) {' + expectedString + ', [Circular]}', 'Set containing a Set should work');
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t.end();
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});
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test('WeakSet', { skip: typeof WeakSet !== 'function' }, function (t) {
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var map = new WeakSet();
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map.add({ a: 1 });
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var expectedString = 'WeakSet { ? }';
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t.equal(inspect(map), expectedString, 'new WeakSet([{ a: 1 }]) should not show size or contents');
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t.equal(inspect(new WeakSet()), 'WeakSet { ? }', 'empty WeakSet should not show as empty');
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t.end();
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});
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test('WeakRef', { skip: typeof WeakRef !== 'function' }, function (t) {
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var ref = new WeakRef({ a: 1 });
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var expectedString = 'WeakRef { ? }';
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t.equal(inspect(ref), expectedString, 'new WeakRef({ a: 1 }) should not show contents');
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t.end();
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});
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test('FinalizationRegistry', { skip: typeof FinalizationRegistry !== 'function' }, function (t) {
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var registry = new FinalizationRegistry(function () {});
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var expectedString = 'FinalizationRegistry [FinalizationRegistry] {}';
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t.equal(inspect(registry), expectedString, 'new FinalizationRegistry(function () {}) should work normallys');
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t.end();
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});
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test('Strings', function (t) {
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var str = 'abc';
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t.equal(inspect(str), "'" + str + "'", 'primitive string shows as such');
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t.equal(inspect(str, { quoteStyle: 'single' }), "'" + str + "'", 'primitive string shows as such, single quoted');
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t.equal(inspect(str, { quoteStyle: 'double' }), '"' + str + '"', 'primitive string shows as such, double quoted');
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t.equal(inspect(Object(str)), 'Object(' + inspect(str) + ')', 'String object shows as such');
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t.equal(inspect(Object(str), { quoteStyle: 'single' }), 'Object(' + inspect(str, { quoteStyle: 'single' }) + ')', 'String object shows as such, single quoted');
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t.equal(inspect(Object(str), { quoteStyle: 'double' }), 'Object(' + inspect(str, { quoteStyle: 'double' }) + ')', 'String object shows as such, double quoted');
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t.end();
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});
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test('Numbers', function (t) {
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var num = 42;
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t.equal(inspect(num), String(num), 'primitive number shows as such');
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t.equal(inspect(Object(num)), 'Object(' + inspect(num) + ')', 'Number object shows as such');
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t.end();
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});
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test('Booleans', function (t) {
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t.equal(inspect(true), String(true), 'primitive true shows as such');
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t.equal(inspect(Object(true)), 'Object(' + inspect(true) + ')', 'Boolean object true shows as such');
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t.equal(inspect(false), String(false), 'primitive false shows as such');
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t.equal(inspect(Object(false)), 'Object(' + inspect(false) + ')', 'Boolean false object shows as such');
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t.end();
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});
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test('Date', function (t) {
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var now = new Date();
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t.equal(inspect(now), String(now), 'Date shows properly');
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t.equal(inspect(new Date(NaN)), 'Invalid Date', 'Invalid Date shows properly');
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t.end();
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});
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test('RegExps', function (t) {
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t.equal(inspect(/a/g), '/a/g', 'regex shows properly');
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t.equal(inspect(new RegExp('abc', 'i')), '/abc/i', 'new RegExp shows properly');
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var match = 'abc abc'.match(/[ab]+/);
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delete match.groups; // for node < 10
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t.equal(inspect(match), '[ \'ab\', index: 0, input: \'abc abc\' ]', 'RegExp match object shows properly');
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t.end();
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});
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