Add lifecyle manager tests

packages/strapi-database/lib/__tests__/lifecycle-manager.test.js

@@ -0,0 +1,54 @@
+'use strict';
+
+const createLifecycleManager = require('../lifecycle-manager');
+
+describe('Lifecycle Manager', () => {
+  test('Allows registering lifecycles', () => {
+    const manager = createLifecycleManager();
+
+    const lifecycle = {};
+    manager.register(lifecycle);
+
+    expect(manager.lifecycles).toEqual([lifecycle]);
+  });
+
+  test('Will run all the lifecycles if no model specified', async () => {
+    const lifecycleA = {
+      find: jest.fn(),
+    };
+
+    const lifecycleB = {
+      find: jest.fn(),
+    };
+
+    const manager = createLifecycleManager();
+
+    manager.register(lifecycleA).register(lifecycleB);
+
+    await manager.run('find', { uid: 'test-uid' });
+
+    expect(lifecycleA.find).toHaveBeenCalled();
+    expect(lifecycleB.find).toHaveBeenCalled();
+  });
+
+  test('Will match on model if specified', async () => {
+    const lifecycleA = {
+      model: 'test-uid',
+      find: jest.fn(),
+    };
+
+    const lifecycleB = {
+      model: 'other-uid',
+      find: jest.fn(),
+    };
+
+    const manager = createLifecycleManager();
+
+    manager.register(lifecycleA).register(lifecycleB);
+
+    await manager.run('find', { uid: 'test-uid' });
+
+    expect(lifecycleA.find).toHaveBeenCalled();
+    expect(lifecycleB.find).not.toHaveBeenCalled();
+  });
+});

packages/strapi-database/lib/database-manager.js

@@ -24,7 +24,7 @@ class DatabaseManager {
     this.models = new Map();
 
     this.migrations = createMigrationManager(this);
-    this.lifecycles = createLifecycleManager(this);
+    this.lifecycles = createLifecycleManager();
   }
 
   async initialize() {

packages/strapi-database/lib/lifecycle-manager.js

@@ -3,9 +3,8 @@ const debug = require('debug')('strapi-database:lifecycle');
 const { isFunction, isNil } = require('lodash/fp');
 
 class LifecycleManager {
-  constructor(db) {
+  constructor() {
     debug('Initialize lifecycle manager');
-    this.db = db;
     this.lifecycles = [];
   }
 
@@ -13,6 +12,7 @@ class LifecycleManager {
     debug('Register lifecycle');
 
     this.lifecycles.push(lifecycle);
+    return this;
   }
 
   async run(action, model, ...args) {