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Copy pathindex.js
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64 lines (57 loc) · 1.39 KB
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var test = require('../util/test')(__filename);
var pick = require('../../packages/object-pick');
var compare = require('../../packages/collection-compare');
// var obj = {a: 3, b: 5, c: 9};
// pick(obj, a, c); // {a: 3, c: 9}
//
// var obj = {a: 3, b: 5, c: 9};
// pick(obj, ['a', 'b', 'd']); // {a: 3, b: 5, d: undefined}
//
// var obj = {a: 3, b: 5, c: 9};
// pick(obj, ['a', 'a']); // {a: 3}
test('pick returns new object', function(t) {
t.plan(1);
var obj = {a: 3, b: 5, c: 9};
t.ok(pick(obj, []) !== obj);
t.end();
});
test('pick using array', function(t) {
t.plan(1);
var obj = {a: 3, b: 5, c: 9};
t.ok(compare(pick(obj, ['a', 'c']), {a: 3, c: 9}));
t.end();
});
test('pick using arguments', function(t) {
t.plan(1);
var obj = {a: 3, b: 5, c: 9};
t.ok(compare(pick(obj, 'a', 'c'), {a: 3, c: 9}));
t.end();
});
test('pick using a non-existent key', function(t) {
t.plan(1);
var obj = {a: 3, b: 5, c: 9};
t.ok(compare(pick(obj, ['a', 'b', 'd']), {a: 3, b: 5, d: undefined}));
t.end();
});
test('pick using a duplicate key', function(t) {
t.plan(1);
var obj = {a: 3, b: 5, c: 9};
t.ok(compare(pick(obj, ['a', 'a']), {a: 3}));
t.end();
});
test('pick where obj has a function value', function(t) {
t.plan(1);
var fn = function() {
return true;
};
var obj = {
a: 3,
b: fn,
};
t.ok(
compare(pick(obj, 'b'), {
b: fn,
})
);
t.end();
});