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We require that slugs are unique as slugs can/are used for routing purposes and act as an identifier for a resource. As this is a core business rule, we want to encode it in the entity so that it can be unit tested, and be enforced regardless of underlying persistence layer
338 lines
11 KiB
TypeScript
338 lines
11 KiB
TypeScript
import assert from 'assert';
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import ObjectID from 'bson-objectid';
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import {Collection} from '../src/index';
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const uniqueChecker = {
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async isUniqueSlug() {
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return true;
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}
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};
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describe('Collection', function () {
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it('Create Collection entity', async function () {
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const collection = await Collection.create({
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title: 'Test Collection'
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});
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assert.ok(collection instanceof Collection);
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assert.ok(collection.id, 'generated id should be set');
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assert.ok(ObjectID.isValid(collection.id), 'generated id should be valid ObjectID');
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assert.equal(collection.title, 'Test Collection');
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assert.ok(collection.createdAt instanceof Date);
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assert.ok(collection.updatedAt instanceof Date);
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assert.ok((collection.deleted === false), 'deleted should be false');
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});
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it('Cannot create a collection without a title', async function () {
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assert.rejects(async () => {
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await Collection.create({});
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});
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});
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it('Can serialize Collection to JSON', async function () {
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const collection = await Collection.create({
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title: 'Serialize me',
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posts: [{
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id: 'post-1'
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}, {
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id: 'post-2'
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}]
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});
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const json = collection.toJSON();
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assert.ok(json);
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assert.equal(json.id, collection.id);
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assert.equal(json.title, 'Serialize me');
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assert.ok(collection.createdAt instanceof Date);
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assert.ok(collection.updatedAt instanceof Date);
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assert.equal(Object.keys(json).length, 10, 'should only have 9 keys + 1 posts relation');
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assert.deepEqual(Object.keys(json), [
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'id',
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'title',
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'slug',
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'description',
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'type',
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'filter',
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'featureImage',
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'createdAt',
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'updatedAt',
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'posts'
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]);
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assert.equal(json.posts.length, 2, 'should have 2 posts');
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const serializedPost = json.posts[0];
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assert.equal(Object.keys(serializedPost).length, 1, 'should only have 1 key');
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assert.deepEqual(Object.keys(serializedPost), [
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'id'
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]);
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});
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it('Can create a Collection with predefined ID', async function () {
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const id = new ObjectID();
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const savedCollection = await Collection.create({
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id: id.toHexString(),
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title: 'Blah'
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});
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assert.equal(savedCollection.id, id.toHexString(), 'Collection should have same id');
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});
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it('Can create a Collection with predefined ObjectID instance', async function () {
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const id = new ObjectID();
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const savedCollection = await Collection.create({
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id: id,
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title: 'Bleh'
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});
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assert.equal(savedCollection.id, id.toHexString(), 'Collection should have same id');
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});
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it('Can create a Collection with predefined created_at and updated_at values', async function () {
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const createdAt = new Date();
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const updatedAt = new Date();
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const savedCollection = await Collection.create({
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created_at: createdAt,
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updated_at: updatedAt,
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title: 'Bluh'
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});
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assert.equal(savedCollection.createdAt, createdAt, 'Collection should have same created_at');
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assert.equal(savedCollection.updatedAt, updatedAt, 'Collection should have same updated_at');
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});
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it('Throws an error when trying to create a Collection with an invalid ID', async function () {
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await assert.rejects(async () => {
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await Collection.create({
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id: 12345
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});
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}, (err: any) => {
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assert.equal(err.message, 'Invalid ID provided for Collection', 'Error message should match');
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return true;
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});
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});
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it('Throws an error when trying to create a Collection with invalid created_at date', async function () {
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await assert.rejects(async () => {
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await Collection.create({
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created_at: 'invalid date',
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title: 'Blih'
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});
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}, (err: any) => {
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assert.equal(err.message, 'Invalid date provided for created_at', 'Error message should match');
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return true;
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});
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});
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it('Throws an error when trying to create an automatic Collection without a filter', async function () {
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await assert.rejects(async () => {
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await Collection.create({
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type: 'automatic',
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filter: null
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});
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}, (err: any) => {
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assert.equal(err.message, 'Invalid filter provided for automatic Collection', 'Error message should match');
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assert.equal(err.context, 'Automatic type of collection should always have a filter value', 'Error message should match');
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return true;
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});
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});
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describe('setSlug', function () {
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it('Does not bother checking uniqueness if slug is unchanged', async function () {
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const collection = await Collection.create({
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slug: 'test-collection',
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title: 'Testing edits',
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type: 'automatic',
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filter: 'featured:true'
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});
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await collection.setSlug('test-collection', {
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isUniqueSlug: () => {
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throw new Error('Should not have checked uniqueness');
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}
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});
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});
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it('Throws an error if slug is not unique', async function () {
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const collection = await Collection.create({
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slug: 'test-collection',
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title: 'Testing edits',
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type: 'automatic',
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filter: 'featured:true'
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});
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assert.rejects(async () => {
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await collection.setSlug('not-unique', {
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async isUniqueSlug() {
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return false;
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}
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});
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});
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});
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});
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describe('edit', function () {
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it('Can edit Collection values', async function () {
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const collection = await Collection.create({
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slug: 'test-collection',
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title: 'Testing edits',
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type: 'automatic',
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filter: 'featured:true'
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});
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assert.equal(collection.title, 'Testing edits');
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await collection.edit({
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title: 'Edited title',
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slug: 'edited-slug'
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}, uniqueChecker);
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assert.equal(collection.title, 'Edited title');
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assert.equal(collection.slug, 'edited-slug');
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});
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it('Throws when the collection filter is empty', async function () {
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const collection = await Collection.create({
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title: 'Testing edits',
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type: 'automatic',
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filter: 'featured:true'
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});
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assert.rejects(async () => {
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await collection.edit({
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filter: null
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}, uniqueChecker);
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}, (err: any) => {
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assert.equal(err.message, 'Invalid filter provided for automatic Collection', 'Error message should match');
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assert.equal(err.context, 'Automatic type of collection should always have a filter value', 'Error message should match');
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return true;
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});
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});
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});
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it('Can add posts to different positions', async function () {
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const collection = await Collection.create({
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title: 'Testing adding posts',
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type: 'manual'
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});
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assert(collection.posts.length === 0);
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const posts = [{
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id: '0'
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}, {
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id: '1'
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}, {
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id: '2'
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}, {
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id: '3'
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}];
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collection.addPost(posts[0]);
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collection.addPost(posts[1]);
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collection.addPost(posts[2], 1);
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collection.addPost(posts[3], 0);
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assert(collection.posts.length as number === 4);
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assert(collection.posts[0] === '3');
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collection.addPost(posts[3], -1);
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assert(collection.posts.length as number === 4);
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assert(collection.posts[collection.posts.length - 2] === '3');
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});
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it('Adds a post to an automatic collection when it matches the filter', async function () {
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const collection = await Collection.create({
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title: 'Testing adding posts',
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type: 'automatic',
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filter: 'featured:true'
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});
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assert.equal(collection.posts.length, 0, 'Collection should have no posts');
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const added = await collection.addPost({
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id: '0',
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featured: false
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});
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assert.equal(added, false);
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assert.equal(collection.posts.length, 0, 'The non-featured post should not have been added');
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const featuredAdded = await collection.addPost({
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id: '1',
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featured: true
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});
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assert.equal(featuredAdded, true);
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assert.equal(collection.posts.length, 1, 'The featured post should have been added');
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});
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it('Removes a post by id', async function () {
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const collection = await Collection.create({
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title: 'Testing adding posts'
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});
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assert.equal(collection.posts.length, 0);
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collection.addPost({
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id: '0'
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});
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assert.equal(collection.posts.length, 1);
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collection.removePost('0');
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assert.equal(collection.posts.length, 0);
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});
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it('Cannot set non deletable collection to deleted', async function () {
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const collection = await Collection.create({
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title: 'Testing adding posts',
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deletable: false
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});
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assert.equal(collection.deleted, false);
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collection.deleted = true;
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assert.equal(collection.deleted, false);
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});
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it('Can set deletable collection to deleted', async function () {
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const collection = await Collection.create({
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title: 'Testing adding posts',
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deletable: true
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});
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assert.equal(collection.deleted, false);
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collection.deleted = true;
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assert.equal(collection.deleted, true);
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});
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describe('postMatchesFilter', function () {
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it('Can match a post with a filter', async function () {
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const collection = await Collection.create({
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title: 'Testing filtering posts',
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type: 'automatic',
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filter: 'featured:true'
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});
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const featuredPost = {
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id: '0',
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featured: true
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};
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const nonFeaturedPost = {
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id: '1',
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featured: false
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};
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assert.ok(collection.postMatchesFilter(featuredPost), 'Post should match the filter');
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assert.ok(!collection.postMatchesFilter(nonFeaturedPost), 'Post should not match the filter');
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});
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});
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});
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