source: frontend/node_modules/qs/test/utils.js

Last change on this file was 9af201e, checked in by MBK <marija.karapandzova@…>, 11 days ago

Fix frontend appearance
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File size: 16.3 KB
Line 
1'use strict';
2
3var test = require('tape');
4var inspect = require('object-inspect');
5var SaferBuffer = require('safer-buffer').Buffer;
6var forEach = require('for-each');
7var v = require('es-value-fixtures');
8
9var utils = require('../lib/utils');
10
11test('merge()', function (t) {
12 t.deepEqual(utils.merge(null, true), [null, true], 'merges true into null');
13
14 t.deepEqual(utils.merge(null, [42]), [null, 42], 'merges null into an array');
15
16 t.deepEqual(utils.merge({ a: 'b' }, { a: 'c' }), { a: ['b', 'c'] }, 'merges two objects with the same key');
17
18 var oneMerged = utils.merge({ foo: 'bar' }, { foo: { first: '123' } });
19 t.deepEqual(oneMerged, { foo: ['bar', { first: '123' }] }, 'merges a standalone and an object into an array');
20
21 var twoMerged = utils.merge({ foo: ['bar', { first: '123' }] }, { foo: { second: '456' } });
22 t.deepEqual(twoMerged, { foo: { 0: 'bar', 1: { first: '123' }, second: '456' } }, 'merges a standalone and two objects into an array');
23
24 var sandwiched = utils.merge({ foo: ['bar', { first: '123', second: '456' }] }, { foo: 'baz' });
25 t.deepEqual(sandwiched, { foo: ['bar', { first: '123', second: '456' }, 'baz'] }, 'merges an object sandwiched by two standalones into an array');
26
27 var nestedArrays = utils.merge({ foo: ['baz'] }, { foo: ['bar', 'xyzzy'] });
28 t.deepEqual(nestedArrays, { foo: ['baz', 'bar', 'xyzzy'] });
29
30 var noOptionsNonObjectSource = utils.merge({ foo: 'baz' }, 'bar');
31 t.deepEqual(noOptionsNonObjectSource, { foo: 'baz', bar: true });
32
33 var func = function f() {};
34 func();
35 t.deepEqual(
36 utils.merge(func, { foo: 'bar' }),
37 [func, { foo: 'bar' }],
38 'functions can not be merged into'
39 );
40
41 func.bar = 'baz';
42 t.deepEqual(
43 utils.merge({ foo: 'bar' }, func),
44 { foo: 'bar', bar: 'baz' },
45 'functions can be merge sources'
46 );
47
48 t.test(
49 'avoids invoking array setters unnecessarily',
50 { skip: typeof Object.defineProperty !== 'function' },
51 function (st) {
52 var setCount = 0;
53 var getCount = 0;
54 var observed = [];
55 Object.defineProperty(observed, 0, {
56 get: function () {
57 getCount += 1;
58 return { bar: 'baz' };
59 },
60 set: function () { setCount += 1; }
61 });
62 utils.merge(observed, [null]);
63 st.equal(setCount, 0);
64 st.equal(getCount, 1);
65 observed[0] = observed[0]; // eslint-disable-line no-self-assign
66 st.equal(setCount, 1);
67 st.equal(getCount, 2);
68 st.end();
69 }
70 );
71
72 t.test('with overflow objects (from arrayLimit)', function (st) {
73 // arrayLimit is max index, so with limit 0, max index 0 is allowed (1 element)
74 // To create overflow, need 2+ elements with limit 0, or 3+ with limit 1, etc.
75 st.test('merges primitive into overflow object at next index', function (s2t) {
76 // Create an overflow object via combine: 3 elements (indices 0-2) with limit 0
77 var overflow = utils.combine(['a', 'b'], 'c', 0, false);
78 s2t.ok(utils.isOverflow(overflow), 'overflow object is marked');
79 var merged = utils.merge(overflow, 'd');
80 s2t.deepEqual(merged, { 0: 'a', 1: 'b', 2: 'c', 3: 'd' }, 'adds primitive at next numeric index');
81 s2t.end();
82 });
83
84 st.test('merges primitive into regular object with numeric keys normally', function (s2t) {
85 var obj = { 0: 'a', 1: 'b' };
86 s2t.notOk(utils.isOverflow(obj), 'plain object is not marked as overflow');
87 var merged = utils.merge(obj, 'c');
88 s2t.deepEqual(merged, { 0: 'a', 1: 'b', c: true }, 'adds primitive as key (not at next index)');
89 s2t.end();
90 });
91
92 st.test('merges primitive into object with non-numeric keys normally', function (s2t) {
93 var obj = { foo: 'bar' };
94 var merged = utils.merge(obj, 'baz');
95 s2t.deepEqual(merged, { foo: 'bar', baz: true }, 'adds primitive as key with value true');
96 s2t.end();
97 });
98
99 st.test('with strictMerge, wraps object and primitive in array', function (s2t) {
100 var obj = { foo: 'bar' };
101 var merged = utils.merge(obj, 'baz', { strictMerge: true });
102 s2t.deepEqual(merged, [{ foo: 'bar' }, 'baz'], 'wraps in array with strictMerge');
103 s2t.end();
104 });
105
106 st.test('merges overflow object into primitive', function (s2t) {
107 // Create an overflow object via combine: 2 elements (indices 0-1) with limit 0
108 var overflow = utils.combine(['a'], 'b', 0, false);
109 s2t.ok(utils.isOverflow(overflow), 'overflow object is marked');
110 var merged = utils.merge('c', overflow);
111 s2t.ok(utils.isOverflow(merged), 'result is also marked as overflow');
112 s2t.deepEqual(merged, { 0: 'c', 1: 'a', 2: 'b' }, 'creates object with primitive at 0, source values shifted');
113 s2t.end();
114 });
115
116 st.test('merges overflow object into primitive with plainObjects', function (s2t) {
117 var overflow = utils.combine(['a'], 'b', 0, false);
118 s2t.ok(utils.isOverflow(overflow), 'overflow object is marked');
119 var merged = utils.merge('c', overflow, { plainObjects: true });
120 s2t.ok(utils.isOverflow(merged), 'result is also marked as overflow');
121 s2t.deepEqual(merged, { __proto__: null, 0: 'c', 1: 'a', 2: 'b' }, 'creates null-proto object with primitive at 0');
122 s2t.end();
123 });
124
125 st.test('merges overflow object with multiple values into primitive', function (s2t) {
126 // Create an overflow object via combine: 3 elements (indices 0-2) with limit 0
127 var overflow = utils.combine(['b', 'c'], 'd', 0, false);
128 s2t.ok(utils.isOverflow(overflow), 'overflow object is marked');
129 var merged = utils.merge('a', overflow);
130 s2t.deepEqual(merged, { 0: 'a', 1: 'b', 2: 'c', 3: 'd' }, 'shifts all source indices by 1');
131 s2t.end();
132 });
133
134 st.test('merges regular object into primitive as array', function (s2t) {
135 var obj = { foo: 'bar' };
136 var merged = utils.merge('a', obj);
137 s2t.deepEqual(merged, ['a', { foo: 'bar' }], 'creates array with primitive and object');
138 s2t.end();
139 });
140
141 st.test('merges primitive into array that exceeds arrayLimit', function (s2t) {
142 var arr = ['a', 'b', 'c'];
143 var merged = utils.merge(arr, 'd', { arrayLimit: 1 });
144 s2t.ok(utils.isOverflow(merged), 'result is marked as overflow');
145 s2t.deepEqual(merged, { 0: 'a', 1: 'b', 2: 'c', 3: 'd' }, 'converts to overflow object with primitive appended');
146 s2t.end();
147 });
148
149 st.test('merges array into primitive that exceeds arrayLimit', function (s2t) {
150 var merged = utils.merge('a', ['b', 'c'], { arrayLimit: 1 });
151 s2t.ok(utils.isOverflow(merged), 'result is marked as overflow');
152 s2t.deepEqual(merged, { 0: 'a', 1: 'b', 2: 'c' }, 'converts to overflow object');
153 s2t.end();
154 });
155
156 st.end();
157 });
158
159 t.end();
160});
161
162test('assign()', function (t) {
163 var target = { a: 1, b: 2 };
164 var source = { b: 3, c: 4 };
165 var result = utils.assign(target, source);
166
167 t.equal(result, target, 'returns the target');
168 t.deepEqual(target, { a: 1, b: 3, c: 4 }, 'target and source are merged');
169 t.deepEqual(source, { b: 3, c: 4 }, 'source is untouched');
170
171 t.end();
172});
173
174test('combine()', function (t) {
175 t.test('both arrays', function (st) {
176 var a = [1];
177 var b = [2];
178 var combined = utils.combine(a, b);
179
180 st.deepEqual(a, [1], 'a is not mutated');
181 st.deepEqual(b, [2], 'b is not mutated');
182 st.notEqual(a, combined, 'a !== combined');
183 st.notEqual(b, combined, 'b !== combined');
184 st.deepEqual(combined, [1, 2], 'combined is a + b');
185
186 st.end();
187 });
188
189 t.test('one array, one non-array', function (st) {
190 var aN = 1;
191 var a = [aN];
192 var bN = 2;
193 var b = [bN];
194
195 var combinedAnB = utils.combine(aN, b);
196 st.deepEqual(b, [bN], 'b is not mutated');
197 st.notEqual(aN, combinedAnB, 'aN + b !== aN');
198 st.notEqual(a, combinedAnB, 'aN + b !== a');
199 st.notEqual(bN, combinedAnB, 'aN + b !== bN');
200 st.notEqual(b, combinedAnB, 'aN + b !== b');
201 st.deepEqual([1, 2], combinedAnB, 'first argument is array-wrapped when not an array');
202
203 var combinedABn = utils.combine(a, bN);
204 st.deepEqual(a, [aN], 'a is not mutated');
205 st.notEqual(aN, combinedABn, 'a + bN !== aN');
206 st.notEqual(a, combinedABn, 'a + bN !== a');
207 st.notEqual(bN, combinedABn, 'a + bN !== bN');
208 st.notEqual(b, combinedABn, 'a + bN !== b');
209 st.deepEqual([1, 2], combinedABn, 'second argument is array-wrapped when not an array');
210
211 st.end();
212 });
213
214 t.test('neither is an array', function (st) {
215 var combined = utils.combine(1, 2);
216 st.notEqual(1, combined, '1 + 2 !== 1');
217 st.notEqual(2, combined, '1 + 2 !== 2');
218 st.deepEqual([1, 2], combined, 'both arguments are array-wrapped when not an array');
219
220 st.end();
221 });
222
223 t.test('with arrayLimit', function (st) {
224 st.test('under the limit', function (s2t) {
225 var combined = utils.combine(['a', 'b'], 'c', 10, false);
226 s2t.deepEqual(combined, ['a', 'b', 'c'], 'returns array when under limit');
227 s2t.ok(Array.isArray(combined), 'result is an array');
228 s2t.end();
229 });
230
231 st.test('exactly at the limit stays as array', function (s2t) {
232 var combined = utils.combine(['a', 'b'], 'c', 3, false);
233 s2t.deepEqual(combined, ['a', 'b', 'c'], 'stays as array when count equals limit');
234 s2t.ok(Array.isArray(combined), 'result is an array');
235 s2t.end();
236 });
237
238 st.test('over the limit', function (s2t) {
239 var combined = utils.combine(['a', 'b', 'c'], 'd', 3, false);
240 s2t.deepEqual(combined, { 0: 'a', 1: 'b', 2: 'c', 3: 'd' }, 'converts to object when over limit');
241 s2t.notOk(Array.isArray(combined), 'result is not an array');
242 s2t.end();
243 });
244
245 st.test('with arrayLimit 1', function (s2t) {
246 var combined = utils.combine([], 'a', 1, false);
247 s2t.deepEqual(combined, ['a'], 'stays as array when count equals limit');
248 s2t.ok(Array.isArray(combined), 'result is an array');
249 s2t.end();
250 });
251
252 st.test('with arrayLimit 0 converts single element to object', function (s2t) {
253 var combined = utils.combine([], 'a', 0, false);
254 s2t.deepEqual(combined, { 0: 'a' }, 'converts to object when count exceeds limit');
255 s2t.notOk(Array.isArray(combined), 'result is not an array');
256 s2t.end();
257 });
258
259 st.test('with arrayLimit 0 and two elements converts to object', function (s2t) {
260 var combined = utils.combine(['a'], 'b', 0, false);
261 s2t.deepEqual(combined, { 0: 'a', 1: 'b' }, 'converts to object when count exceeds limit');
262 s2t.notOk(Array.isArray(combined), 'result is not an array');
263 s2t.end();
264 });
265
266 st.test('with plainObjects option', function (s2t) {
267 var combined = utils.combine(['a', 'b'], 'c', 1, true);
268 var expected = { __proto__: null, 0: 'a', 1: 'b', 2: 'c' };
269 s2t.deepEqual(combined, expected, 'converts to object with null prototype');
270 s2t.equal(Object.getPrototypeOf(combined), null, 'result has null prototype when plainObjects is true');
271 s2t.end();
272 });
273
274 st.end();
275 });
276
277 t.test('with existing overflow object', function (st) {
278 st.test('adds to existing overflow object at next index', function (s2t) {
279 // Create overflow object first via combine: 3 elements (indices 0-2) with limit 0
280 var overflow = utils.combine(['a', 'b'], 'c', 0, false);
281 s2t.ok(utils.isOverflow(overflow), 'initial object is marked as overflow');
282
283 var combined = utils.combine(overflow, 'd', 10, false);
284 s2t.equal(combined, overflow, 'returns the same object (mutated)');
285 s2t.deepEqual(combined, { 0: 'a', 1: 'b', 2: 'c', 3: 'd' }, 'adds value at next numeric index');
286 s2t.end();
287 });
288
289 st.test('does not treat plain object with numeric keys as overflow', function (s2t) {
290 var plainObj = { 0: 'a', 1: 'b' };
291 s2t.notOk(utils.isOverflow(plainObj), 'plain object is not marked as overflow');
292
293 // combine treats this as a regular value, not an overflow object to append to
294 var combined = utils.combine(plainObj, 'c', 10, false);
295 s2t.deepEqual(combined, [{ 0: 'a', 1: 'b' }, 'c'], 'concatenates as regular values');
296 s2t.end();
297 });
298
299 st.end();
300 });
301
302 t.end();
303});
304
305test('decode', function (t) {
306 t.equal(
307 utils.decode('a+b'),
308 'a b',
309 'decodes + to space'
310 );
311
312 t.equal(
313 utils.decode('name%2Eobj'),
314 'name.obj',
315 'decodes a string'
316 );
317 t.equal(
318 utils.decode('name%2Eobj%2Efoo', null, 'iso-8859-1'),
319 'name.obj.foo',
320 'decodes a string in iso-8859-1'
321 );
322
323 t.end();
324});
325
326test('encode', function (t) {
327 forEach(v.nullPrimitives, function (nullish) {
328 t['throws'](
329 function () { utils.encode(nullish); },
330 TypeError,
331 inspect(nullish) + ' is not a string'
332 );
333 });
334
335 t.equal(utils.encode(''), '', 'empty string returns itself');
336 t.deepEqual(utils.encode([]), [], 'empty array returns itself');
337 t.deepEqual(utils.encode({ length: 0 }), { length: 0 }, 'empty arraylike returns itself');
338
339 t.test('symbols', { skip: !v.hasSymbols }, function (st) {
340 st.equal(utils.encode(Symbol('x')), 'Symbol%28x%29', 'symbol is encoded');
341
342 st.end();
343 });
344
345 t.equal(
346 utils.encode('(abc)'),
347 '%28abc%29',
348 'encodes parentheses'
349 );
350 t.equal(
351 utils.encode({ toString: function () { return '(abc)'; } }),
352 '%28abc%29',
353 'toStrings and encodes parentheses'
354 );
355
356 t.equal(
357 utils.encode('abc 123 💩', null, 'iso-8859-1'),
358 'abc%20123%20%26%2355357%3B%26%2356489%3B',
359 'encodes in iso-8859-1'
360 );
361
362 var longString = '';
363 var expectedString = '';
364 for (var i = 0; i < 1500; i++) {
365 longString += ' ';
366 expectedString += '%20';
367 }
368
369 t.equal(
370 utils.encode(longString),
371 expectedString,
372 'encodes a long string'
373 );
374
375 t.equal(
376 utils.encode('\x28\x29'),
377 '%28%29',
378 'encodes parens normally'
379 );
380 t.equal(
381 utils.encode('\x28\x29', null, null, null, 'RFC1738'),
382 '()',
383 'does not encode parens in RFC1738'
384 );
385
386 // todo RFC1738 format
387
388 t.equal(
389 utils.encode('Āက豈'),
390 '%C4%80%E1%80%80%EF%A4%80',
391 'encodes multibyte chars'
392 );
393
394 t.equal(
395 utils.encode('\uD83D \uDCA9'),
396 '%F0%9F%90%A0%F0%BA%90%80',
397 'encodes lone surrogates'
398 );
399
400 t.end();
401});
402
403test('isBuffer()', function (t) {
404 var fn = function () {};
405 fn();
406 forEach([null, undefined, true, false, '', 'abc', 42, 0, NaN, {}, [], fn, /a/g], function (x) {
407 t.equal(utils.isBuffer(x), false, inspect(x) + ' is not a buffer');
408 });
409
410 var fakeBuffer = { constructor: Buffer };
411 t.equal(utils.isBuffer(fakeBuffer), false, 'fake buffer is not a buffer');
412
413 var saferBuffer = SaferBuffer.from('abc');
414 t.equal(utils.isBuffer(saferBuffer), true, 'SaferBuffer instance is a buffer');
415
416 var buffer = SaferBuffer.from('abc');
417 t.notEqual(saferBuffer, buffer, 'different buffer instances');
418 t.equal(utils.isBuffer(buffer), true, 'another Buffer instance is a buffer');
419 t.end();
420});
421
422test('isRegExp()', function (t) {
423 t.equal(utils.isRegExp(/a/g), true, 'RegExp is a RegExp');
424 t.equal(utils.isRegExp(new RegExp('a', 'g')), true, 'new RegExp is a RegExp');
425 t.equal(utils.isRegExp(new Date()), false, 'Date is not a RegExp');
426
427 forEach(v.primitives, function (primitive) {
428 t.equal(utils.isRegExp(primitive), false, inspect(primitive) + ' is not a RegExp');
429 });
430
431 t.end();
432});
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