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- var test = require('tape');
- var traverse = require('../');
- var deepEqual = require('./lib/deep_equal');
- test('deepDates', function (t) {
- t.plan(2);
-
- t.ok(
- deepEqual(
- { d : new Date, x : [ 1, 2, 3 ] },
- { d : new Date, x : [ 1, 2, 3 ] }
- ),
- 'dates should be equal'
- );
-
- var d0 = new Date;
- setTimeout(function () {
- t.ok(
- !deepEqual(
- { d : d0, x : [ 1, 2, 3 ], },
- { d : new Date, x : [ 1, 2, 3 ] }
- ),
- 'microseconds should count in date equality'
- );
- }, 5);
- });
- test('deepCircular', function (t) {
- var a = [1];
- a.push(a); // a = [ 1, *a ]
-
- var b = [1];
- b.push(a); // b = [ 1, [ 1, *a ] ]
-
- t.ok(
- !deepEqual(a, b),
- 'circular ref mount points count towards equality'
- );
-
- var c = [1];
- c.push(c); // c = [ 1, *c ]
- t.ok(
- deepEqual(a, c),
- 'circular refs are structurally the same here'
- );
-
- var d = [1];
- d.push(a); // c = [ 1, [ 1, *d ] ]
- t.ok(
- deepEqual(b, d),
- 'non-root circular ref structural comparison'
- );
-
- t.end();
- });
- test('deepInstances', function (t) {
- t.ok(
- !deepEqual([ new Boolean(false) ], [ false ]),
- 'boolean instances are not real booleans'
- );
-
- t.ok(
- !deepEqual([ new String('x') ], [ 'x' ]),
- 'string instances are not real strings'
- );
-
- t.ok(
- !deepEqual([ new Number(4) ], [ 4 ]),
- 'number instances are not real numbers'
- );
-
- t.ok(
- deepEqual([ new RegExp('x') ], [ /x/ ]),
- 'regexp instances are real regexps'
- );
-
- t.ok(
- !deepEqual([ new RegExp(/./) ], [ /../ ]),
- 'these regexps aren\'t the same'
- );
-
- t.ok(
- !deepEqual(
- [ function (x) { return x * 2 } ],
- [ function (x) { return x * 2 } ]
- ),
- 'functions with the same .toString() aren\'t necessarily the same'
- );
-
- var f = function (x) { return x * 2 };
- t.ok(
- deepEqual([ f ], [ f ]),
- 'these functions are actually equal'
- );
-
- t.end();
- });
- test('deepEqual', function (t) {
- t.ok(
- !deepEqual([ 1, 2, 3 ], { 0 : 1, 1 : 2, 2 : 3 }),
- 'arrays are not objects'
- );
- t.end();
- });
- test('falsy', function (t) {
- t.ok(
- !deepEqual([ undefined ], [ null ]),
- 'null is not undefined!'
- );
-
- t.ok(
- !deepEqual([ null ], [ undefined ]),
- 'undefined is not null!'
- );
-
- t.ok(
- !deepEqual(
- { a : 1, b : 2, c : [ 3, undefined, 5 ] },
- { a : 1, b : 2, c : [ 3, null, 5 ] }
- ),
- 'undefined is not null, however deeply!'
- );
-
- t.ok(
- !deepEqual(
- { a : 1, b : 2, c : [ 3, undefined, 5 ] },
- { a : 1, b : 2, c : [ 3, null, 5 ] }
- ),
- 'null is not undefined, however deeply!'
- );
-
- t.ok(
- !deepEqual(
- { a : 1, b : 2, c : [ 3, undefined, 5 ] },
- { a : 1, b : 2, c : [ 3, null, 5 ] }
- ),
- 'null is not undefined, however deeply!'
- );
-
- t.end();
- });
- test('deletedArrayEqual', function (t) {
- var xs = [ 1, 2, 3, 4 ];
- delete xs[2];
-
- var ys = Object.create(Array.prototype);
- ys[0] = 1;
- ys[1] = 2;
- ys[3] = 4;
-
- t.ok(
- deepEqual(xs, ys),
- 'arrays with deleted elements are only equal to'
- + ' arrays with similarly deleted elements'
- );
-
- t.ok(
- !deepEqual(xs, [ 1, 2, undefined, 4 ]),
- 'deleted array elements cannot be undefined'
- );
-
- t.ok(
- !deepEqual(xs, [ 1, 2, null, 4 ]),
- 'deleted array elements cannot be null'
- );
-
- t.end();
- });
- test('deletedObjectEqual', function (t) {
- var obj = { a : 1, b : 2, c : 3 };
- delete obj.c;
-
- t.ok(
- deepEqual(obj, { a : 1, b : 2 }),
- 'deleted object elements should not show up'
- );
-
- t.ok(
- !deepEqual(obj, { a : 1, b : 2, c : undefined }),
- 'deleted object elements are not undefined'
- );
-
- t.ok(
- !deepEqual(obj, { a : 1, b : 2, c : null }),
- 'deleted object elements are not null'
- );
-
- t.end();
- });
- test('emptyKeyEqual', function (t) {
- t.ok(!deepEqual(
- { a : 1 }, { a : 1, '' : 55 }
- ));
-
- t.end();
- });
- test('deepArguments', function (t) {
- t.ok(
- !deepEqual(
- [ 4, 5, 6 ],
- (function () { return arguments })(4, 5, 6)
- ),
- 'arguments are not arrays'
- );
-
- t.ok(
- deepEqual(
- (function () { return arguments })(4, 5, 6),
- (function () { return arguments })(4, 5, 6)
- ),
- 'arguments should equal'
- );
-
- t.end();
- });
- test('deepUn', function (t) {
- t.ok(!deepEqual({ a : 1, b : 2 }, undefined));
- t.ok(!deepEqual({ a : 1, b : 2 }, {}));
- t.ok(!deepEqual(undefined, { a : 1, b : 2 }));
- t.ok(!deepEqual({}, { a : 1, b : 2 }));
- t.ok(deepEqual(undefined, undefined));
- t.ok(deepEqual(null, null));
- t.ok(!deepEqual(undefined, null));
-
- t.end();
- });
- test('deepLevels', function (t) {
- var xs = [ 1, 2, [ 3, 4, [ 5, 6 ] ] ];
- t.ok(!deepEqual(xs, []));
- t.end();
- });
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