263 lines
8 KiB
JavaScript
263 lines
8 KiB
JavaScript
'use strict';
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var test = require('tape');
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var inspect = require('object-inspect');
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var SaferBuffer = require('safer-buffer').Buffer;
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var forEach = require('for-each');
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var v = require('es-value-fixtures');
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var utils = require('../lib/utils');
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test('merge()', function (t) {
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t.deepEqual(utils.merge(null, true), [null, true], 'merges true into null');
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t.deepEqual(utils.merge(null, [42]), [null, 42], 'merges null into an array');
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t.deepEqual(utils.merge({ a: 'b' }, { a: 'c' }), { a: ['b', 'c'] }, 'merges two objects with the same key');
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var oneMerged = utils.merge({ foo: 'bar' }, { foo: { first: '123' } });
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t.deepEqual(oneMerged, { foo: ['bar', { first: '123' }] }, 'merges a standalone and an object into an array');
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var twoMerged = utils.merge({ foo: ['bar', { first: '123' }] }, { foo: { second: '456' } });
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t.deepEqual(twoMerged, { foo: { 0: 'bar', 1: { first: '123' }, second: '456' } }, 'merges a standalone and two objects into an array');
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var sandwiched = utils.merge({ foo: ['bar', { first: '123', second: '456' }] }, { foo: 'baz' });
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t.deepEqual(sandwiched, { foo: ['bar', { first: '123', second: '456' }, 'baz'] }, 'merges an object sandwiched by two standalones into an array');
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var nestedArrays = utils.merge({ foo: ['baz'] }, { foo: ['bar', 'xyzzy'] });
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t.deepEqual(nestedArrays, { foo: ['baz', 'bar', 'xyzzy'] });
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var noOptionsNonObjectSource = utils.merge({ foo: 'baz' }, 'bar');
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t.deepEqual(noOptionsNonObjectSource, { foo: 'baz', bar: true });
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var func = function f() {};
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t.deepEqual(
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utils.merge(func, { foo: 'bar' }),
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[func, { foo: 'bar' }],
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'functions can not be merged into'
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);
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func.bar = 'baz';
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t.deepEqual(
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utils.merge({ foo: 'bar' }, func),
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{ foo: 'bar', bar: 'baz' },
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'functions can be merge sources'
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);
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t.test(
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'avoids invoking array setters unnecessarily',
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{ skip: typeof Object.defineProperty !== 'function' },
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function (st) {
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var setCount = 0;
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var getCount = 0;
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var observed = [];
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Object.defineProperty(observed, 0, {
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get: function () {
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getCount += 1;
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return { bar: 'baz' };
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},
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set: function () { setCount += 1; }
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});
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utils.merge(observed, [null]);
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st.equal(setCount, 0);
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st.equal(getCount, 1);
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observed[0] = observed[0]; // eslint-disable-line no-self-assign
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st.equal(setCount, 1);
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st.equal(getCount, 2);
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st.end();
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}
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);
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t.end();
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});
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test('assign()', function (t) {
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var target = { a: 1, b: 2 };
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var source = { b: 3, c: 4 };
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var result = utils.assign(target, source);
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t.equal(result, target, 'returns the target');
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t.deepEqual(target, { a: 1, b: 3, c: 4 }, 'target and source are merged');
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t.deepEqual(source, { b: 3, c: 4 }, 'source is untouched');
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t.end();
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});
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test('combine()', function (t) {
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t.test('both arrays', function (st) {
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var a = [1];
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var b = [2];
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var combined = utils.combine(a, b);
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st.deepEqual(a, [1], 'a is not mutated');
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st.deepEqual(b, [2], 'b is not mutated');
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st.notEqual(a, combined, 'a !== combined');
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st.notEqual(b, combined, 'b !== combined');
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st.deepEqual(combined, [1, 2], 'combined is a + b');
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st.end();
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});
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t.test('one array, one non-array', function (st) {
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var aN = 1;
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var a = [aN];
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var bN = 2;
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var b = [bN];
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var combinedAnB = utils.combine(aN, b);
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st.deepEqual(b, [bN], 'b is not mutated');
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st.notEqual(aN, combinedAnB, 'aN + b !== aN');
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st.notEqual(a, combinedAnB, 'aN + b !== a');
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st.notEqual(bN, combinedAnB, 'aN + b !== bN');
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st.notEqual(b, combinedAnB, 'aN + b !== b');
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st.deepEqual([1, 2], combinedAnB, 'first argument is array-wrapped when not an array');
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var combinedABn = utils.combine(a, bN);
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st.deepEqual(a, [aN], 'a is not mutated');
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st.notEqual(aN, combinedABn, 'a + bN !== aN');
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st.notEqual(a, combinedABn, 'a + bN !== a');
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st.notEqual(bN, combinedABn, 'a + bN !== bN');
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st.notEqual(b, combinedABn, 'a + bN !== b');
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st.deepEqual([1, 2], combinedABn, 'second argument is array-wrapped when not an array');
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st.end();
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});
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t.test('neither is an array', function (st) {
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var combined = utils.combine(1, 2);
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st.notEqual(1, combined, '1 + 2 !== 1');
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st.notEqual(2, combined, '1 + 2 !== 2');
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st.deepEqual([1, 2], combined, 'both arguments are array-wrapped when not an array');
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st.end();
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});
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t.end();
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});
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test('decode', function (t) {
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t.equal(
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utils.decode('a+b'),
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'a b',
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'decodes + to space'
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);
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t.equal(
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utils.decode('name%2Eobj'),
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'name.obj',
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'decodes a string'
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);
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t.equal(
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utils.decode('name%2Eobj%2Efoo', null, 'iso-8859-1'),
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'name.obj.foo',
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'decodes a string in iso-8859-1'
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);
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t.end();
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});
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test('encode', function (t) {
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forEach(v.nullPrimitives, function (nullish) {
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t['throws'](
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function () { utils.encode(nullish); },
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TypeError,
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inspect(nullish) + ' is not a string'
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);
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});
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t.equal(utils.encode(''), '', 'empty string returns itself');
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t.deepEqual(utils.encode([]), [], 'empty array returns itself');
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t.deepEqual(utils.encode({ length: 0 }), { length: 0 }, 'empty arraylike returns itself');
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t.test('symbols', { skip: !v.hasSymbols }, function (st) {
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st.equal(utils.encode(Symbol('x')), 'Symbol%28x%29', 'symbol is encoded');
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st.end();
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});
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t.equal(
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utils.encode('(abc)'),
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'%28abc%29',
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'encodes parentheses'
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);
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t.equal(
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utils.encode({ toString: function () { return '(abc)'; } }),
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'%28abc%29',
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'toStrings and encodes parentheses'
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);
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t.equal(
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utils.encode('abc 123 💩', null, 'iso-8859-1'),
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'abc%20123%20%26%2355357%3B%26%2356489%3B',
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'encodes in iso-8859-1'
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);
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var longString = '';
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var expectedString = '';
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for (var i = 0; i < 1500; i++) {
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longString += ' ';
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expectedString += '%20';
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}
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t.equal(
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utils.encode(longString),
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expectedString,
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'encodes a long string'
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);
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t.equal(
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utils.encode('\x28\x29'),
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'%28%29',
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'encodes parens normally'
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);
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t.equal(
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utils.encode('\x28\x29', null, null, null, 'RFC1738'),
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'()',
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'does not encode parens in RFC1738'
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);
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// todo RFC1738 format
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t.equal(
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utils.encode('Āက豈'),
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'%C4%80%E1%80%80%EF%A4%80',
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'encodes multibyte chars'
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);
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t.equal(
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utils.encode('\uD83D \uDCA9'),
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'%F0%9F%90%A0%F0%BA%90%80',
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'encodes lone surrogates'
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);
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t.end();
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});
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test('isBuffer()', function (t) {
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forEach([null, undefined, true, false, '', 'abc', 42, 0, NaN, {}, [], function () {}, /a/g], function (x) {
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t.equal(utils.isBuffer(x), false, inspect(x) + ' is not a buffer');
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});
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var fakeBuffer = { constructor: Buffer };
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t.equal(utils.isBuffer(fakeBuffer), false, 'fake buffer is not a buffer');
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var saferBuffer = SaferBuffer.from('abc');
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t.equal(utils.isBuffer(saferBuffer), true, 'SaferBuffer instance is a buffer');
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var buffer = Buffer.from && Buffer.alloc ? Buffer.from('abc') : new Buffer('abc');
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t.equal(utils.isBuffer(buffer), true, 'real Buffer instance is a buffer');
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t.end();
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});
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test('isRegExp()', function (t) {
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t.equal(utils.isRegExp(/a/g), true, 'RegExp is a RegExp');
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t.equal(utils.isRegExp(new RegExp('a', 'g')), true, 'new RegExp is a RegExp');
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t.equal(utils.isRegExp(new Date()), false, 'Date is not a RegExp');
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forEach(v.primitives, function (primitive) {
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t.equal(utils.isRegExp(primitive), false, inspect(primitive) + ' is not a RegExp');
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});
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t.end();
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});
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