feat(api): add #findById in user repo

Author: P-Jeremy

api/src/identity-access-management/infrastructure/repositories/user.repository.js

@@ -405,6 +405,15 @@ const findAnotherUserByUsername = async function (userId, username) {
   return anotherUsers.map((anotherUser) => new User(anotherUser));
 };
 
+/**
+ * @param {string} userId
+ * @return {Promise<User>}
+ */
+const findById = async function (userId) {
+  const user = await knex('users').where({ id: userId }).first();
+  return user ? new User(user) : null;
+};
+
 /**
  * @param {{
  *   userId: string
@@ -429,6 +438,7 @@ const updateLastDataProtectionPolicySeenAt = async function ({ userId }) {
  * @property {function} findAnotherUserByEmail
  * @property {function} findAnotherUserByUsername
  * @property {function} findByExternalIdentifier
+ * @property {function} findById
  * @property {function} findPaginatedFiltered
  * @property {function} get
  * @property {function} getByEmail
@@ -461,6 +471,7 @@ export {
   findAnotherUserByEmail,
   findAnotherUserByUsername,
   findByExternalIdentifier,
+  findById,
   findPaginatedFiltered,
   get,
   getByEmail,

api/tests/identity-access-management/integration/infrastructure/repositories/user.repository.test.js

@@ -184,6 +184,35 @@ describe('Integration | Identity Access Management | Infrastructure | Repository
       });
     });
 
+    describe('#findById', function () {
+      describe('when user exists', function () {
+        it('returns the user', async function () {
+          // given
+          const userInDB = databaseBuilder.factory.buildUser();
+          await databaseBuilder.commit();
+
+          // when
+          const foundUser = await userRepository.findById(userInDB.id);
+
+          // then
+          expect(foundUser).to.deepEqualInstance(new User(userInDB));
+        });
+      });
+
+      describe('when user does not exist', function () {
+        it('returns null', async function () {
+          // given
+          const userId = 123456;
+
+          // when
+          const foundUser = await userRepository.findById(userId);
+
+          // then
+          expect(foundUser).to.be.null;
+        });
+      });
+    });
+
     describe('#findPaginatedFiltered', function () {
       context('when there are users in the database', function () {
         it('returns an array of users', async function () {