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Copy pathindex.js
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71 lines (66 loc) · 1.44 KB
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var test = require('../util/test')(__filename);
var index = require('../../packages/array-index');
test('indexes an array of objects', function(t) {
t.plan(1);
t.deepEqual(index([{id: 'first', val: 1}, {id: 'second', val: 2}], 'id'), {
first: {id: 'first', val: 1},
second: {id: 'second', val: 2},
});
t.end();
});
test('drops elements without specified key', function(t) {
t.plan(1);
t.deepEqual(index([{id: 'first', val: 1}, null], 'id'), {
first: {id: 'first', val: 1},
});
t.end();
});
test('returns empty array as empty object', function(t) {
t.plan(1);
t.deepEqual(index([], 'id'), {});
t.end();
});
test('throws if first argument is not an array', function(t) {
t.plan(6);
t.throws(function() {
index({}, 'name');
});
t.throws(function() {
index('hello', 'name');
});
t.throws(function() {
index(/hullo/, 'name');
});
t.throws(function() {
index(null, 'name');
});
t.throws(function() {
index(undefined, 'name');
});
t.throws(function() {
index();
});
t.end();
});
test('throws if second argument is not a string', function(t) {
t.plan(6);
t.throws(function() {
index([], {});
});
t.throws(function() {
index([], function() {});
});
t.throws(function() {
index([], /hullo/);
});
t.throws(function() {
index([], null);
});
t.throws(function() {
index([], undefined);
});
t.throws(function() {
index([]);
});
t.end();
});