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| Current File : //proc/thread-self/root/home/saurabh/.npm/_npx/249ca9fcd30c476a/node_modules/traverse/test/equal.js |
'use strict';
var test = require('tape');
var deepEqual = require('./lib/deep_equal');
test('deepDates', function (t) {
t.plan(2);
var now = new Date();
t.ok(
deepEqual(
{ d: new Date(now), x: [1, 2, 3] },
{ d: new Date(now), 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([Object(false)], [false]),
'boolean instances are not real booleans'
);
t.ok(
!deepEqual([Object('x')], ['x']),
'string instances are not real strings'
);
t.ok(
!deepEqual([Object(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'
);
function f(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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