refactor(test): revert unexpected changes

packages/core/src/routes/admin-user.ts

@@ -141,7 +141,7 @@ export default function adminUserRoutes<T extends AuthedRouter>(router: T) {
       assertThat(
         !primaryEmail || !(await hasUserWithEmail(primaryEmail)),
         new RequestError({
-          code: 'user.username_exists_register',
+          code: 'user.email_exists_register',
           status: 422,
         })
       );

packages/integration-tests/src/api/session.ts

@@ -52,24 +52,6 @@ export const signInWithPassword = async ({
     })
     .json<RedirectResponse>();
 
-export const signInWithEmailAndPassword = async (
-  email: string,
-  password: string,
-  interactionCookie: string
-) =>
-  api
-    .post('session/sign-in/email/username', {
-      headers: {
-        cookie: interactionCookie,
-      },
-      json: {
-        email,
-        password,
-      },
-      followRedirect: false,
-    })
-    .json<RedirectResponse>();
-
 export const consent = async (interactionCookie: string) =>
   api
     .post('session/consent', {

packages/integration-tests/tests/api/session.test.ts

@@ -1,6 +1,6 @@
-import assert from 'assert';
+import { SignInIdentifier, SignUpIdentifier } from '@logto/schemas';
-
 import { adminConsoleApplicationId } from '@logto/schemas/lib/seeds';
+import { assert } from '@silverhand/essentials';
 
 import {
   mockEmailConnectorId,
@@ -9,27 +9,27 @@ import {
   mockSmsConnectorConfig,
 } from '@/__mocks__/connectors-mock';
 import {
-  createUser,
-  disableConnector,
   sendRegisterUserWithEmailPasscode,
-  sendRegisterUserWithSmsPasscode,
-  sendSignInUserWithEmailPasscode,
-  sendSignInUserWithSmsPasscode,
-  signInWithPassword,
   verifyRegisterUserWithEmailPasscode,
-  verifyRegisterUserWithSmsPasscode,
+  sendSignInUserWithEmailPasscode,
   verifySignInUserWithEmailPasscode,
+  sendRegisterUserWithSmsPasscode,
+  verifyRegisterUserWithSmsPasscode,
+  sendSignInUserWithSmsPasscode,
   verifySignInUserWithSmsPasscode,
+  disableConnector,
+  signInWithPassword,
+  createUser,
 } from '@/api';
 import MockClient from '@/client';
 import {
-  createUserByAdmin,
-  readPasscode,
   registerNewUser,
-  setSignInMethod,
-  setSignUpIdentifier,
-  setUpConnector,
   signIn,
+  setUpConnector,
+  readPasscode,
+  createUserByAdmin,
+  setSignUpIdentifier,
+  setSignInMethod,
 } from '@/helpers';
 import { generateUsername, generatePassword, generateEmail, generatePhone } from '@/utils';
 
@@ -48,7 +48,7 @@ describe('email and password flow', () => {
   const [localPart, domain] = email.split('@');
   const password = generatePassword();
 
-  assert(localPart && domain);
+  assert(localPart && domain, new Error('Email address local part or domain is empty'));
 
   beforeAll(async () => {
     await setSignInMethod([