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test.js
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test.js
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/* eslint-env node, mocha */
/* eslint func-names: 0 */
var assert = require('assert');
var hasKeyDeep = require('./index');
describe('hasKeyDeep()', function() {
var testObject = { a: { b: { c: 1 } } };
context('fully applied', function () {
context('empty object', function() {
it('should return false when query is a string', function() {
var result = hasKeyDeep('a.b', {});
assert(!result, 'result should be false');
});
it('should return false when query is an array', function() {
var result = hasKeyDeep(['a', 'b'], {});
assert(!result, 'result should be false');
});
});
context('valid string queries', function() {
it('should return true when the key is present (1)', function() {
assert(hasKeyDeep('a', testObject));
});
it('should return true when the key is present (2)', function() {
assert(hasKeyDeep('a.b', testObject));
});
it('should return true when the key is present (3)', function() {
assert(hasKeyDeep('a.b.c', testObject));
});
it('should return true if the value is null', function() {
assert(hasKeyDeep('a.b', { a: { b: null } }));
});
it('should return true if the value is undefined', function() {
assert(hasKeyDeep('a.b', { a: { b: undefined } }));
});
});
context('valid array queries', function() {
it('should return true when the key is present (1)', function() {
assert(hasKeyDeep(['a'], testObject));
});
it('should return true when the key is present (2)', function() {
assert(hasKeyDeep(['a', 'b'], testObject));
});
it('should return true when the key is present (3)', function() {
assert(hasKeyDeep(['a', 'b', 'c'], testObject));
});
it('should return true if the value is null', function() {
assert(hasKeyDeep(['a', 'b'], { a: { b: null } }));
});
it('should return true if the value is undefined', function() {
assert(hasKeyDeep(['a', 'b'], { a: { b: undefined } }));
});
});
context('invalid string queries', function() {
it('should return false when the key is not present (1)', function() {
assert(!hasKeyDeep('a.b.c.d', testObject));
});
it('should return false when the key is not present (2)', function() {
assert(!hasKeyDeep('a.c', testObject));
});
it('should return false when the key is not present (3)', function() {
assert(!hasKeyDeep('c', testObject));
});
it('should return false when an earlier value is null', function() {
assert(!hasKeyDeep('a.b.c', { a: null }));
});
it('should return false when an earlier value is undefined', function() {
assert(!hasKeyDeep('a.b.c', { a: undefined }));
});
it('should return false when the object is undefined', function() {
assert(!hasKeyDeep('a.b.c', undefined));
});
});
context('invalid array queries', function() {
it('should return false when the key is not present (1)', function() {
assert(!hasKeyDeep(['a', 'b', 'c', 'd'], testObject));
});
it('should return false when the key is not present (2)', function() {
assert(!hasKeyDeep(['a', 'c'], testObject));
});
it('should return false when the key is not present (3)', function() {
assert(!hasKeyDeep(['c'], testObject));
});
it('should return false when an earlier value is null', function() {
assert(!hasKeyDeep(['a', 'b', 'c'], { a: null }));
});
it('should return false when an earlier value is undefined', function() {
assert(!hasKeyDeep(['a', 'b', 'c'], { a: undefined }));
});
it('should return false when the object is undefined', function() {
assert(!hasKeyDeep(['a', 'b', 'c'], undefined));
});
});
});
describe('partially applied', function () {
context('empty object', function() {
it('should return false when query is a string', function() {
var result = hasKeyDeep('a.b')({});
assert(!result, 'result should be false');
});
it('should return false when query is an array', function() {
var result = hasKeyDeep(['a', 'b'])({});
assert(!result, 'result should be false');
});
});
context('valid string queries', function() {
it('should return true when the key is present (1)', function() {
assert(hasKeyDeep('a')(testObject));
});
it('should return true when the key is present (2)', function() {
assert(hasKeyDeep('a.b')(testObject));
});
it('should return true when the key is present (3)', function() {
assert(hasKeyDeep('a.b.c')(testObject));
});
it('should return true if the value is null', function() {
assert(hasKeyDeep('a.b')({ a: { b: null } }));
});
it('should return true if the value is undefined', function() {
assert(hasKeyDeep('a.b')({ a: { b: undefined } }));
});
});
context('valid array queries', function() {
it('should return true when the key is present (1)', function() {
assert(hasKeyDeep(['a'])(testObject));
});
it('should return true when the key is present (2)', function() {
assert(hasKeyDeep(['a', 'b'])(testObject));
});
it('should return true when the key is present (3)', function() {
assert(hasKeyDeep(['a', 'b', 'c'])(testObject));
});
it('should return true if the value is null', function() {
assert(hasKeyDeep(['a', 'b'])({ a: { b: null } }));
});
it('should return true if the value is undefined', function() {
assert(hasKeyDeep(['a', 'b'])({ a: { b: undefined } }));
});
});
context('invalid string queries', function() {
it('should return false when the key is not present (1)', function() {
assert(!hasKeyDeep('a.b.c.d')(testObject));
});
it('should return false when the key is not present (2)', function() {
assert(!hasKeyDeep('a.c')(testObject));
});
it('should return false when the key is not present (3)', function() {
assert(!hasKeyDeep('c')(testObject));
});
it('should return false when an earlier value is null', function() {
assert(!hasKeyDeep('a.b.c')({ a: null }));
});
it('should return false when an earlier value is undefined', function() {
assert(!hasKeyDeep('a.b.c')({ a: undefined }));
});
it('should return false when the object is undefined', function() {
assert(!hasKeyDeep('a.b.c')(undefined));
});
});
context('invalid array queries', function() {
it('should return false when the key is not present (1)', function() {
assert(!hasKeyDeep(['a', 'b', 'c', 'd'])(testObject));
});
it('should return false when the key is not present (2)', function() {
assert(!hasKeyDeep(['a', 'c'])(testObject));
});
it('should return false when the key is not present (3)', function() {
assert(!hasKeyDeep(['c'])(testObject));
});
it('should return false when an earlier value is null', function() {
assert(!hasKeyDeep(['a', 'b', 'c'])({ a: null }));
});
it('should return false when an earlier value is undefined', function() {
assert(!hasKeyDeep(['a', 'b', 'c'])({ a: undefined }));
});
it('should return false when the object is undefined', function() {
assert(!hasKeyDeep(['a', 'b', 'c'])(undefined));
});
});
});
});