refactor(server): dont convert graphql bad request into internal server error (#10203)

packages/backend/server/src/__tests__/app/graphql.e2e.ts

@@ -1,15 +1,14 @@
-import type { INestApplication } from '@nestjs/common';
 import type { TestFn } from 'ava';
 import ava from 'ava';
 import request from 'supertest';
 
 import { buildAppModule } from '../../app.module';
-import { createTestingApp } from '../utils';
+import { createTestingApp, TestingApp } from '../utils';
 
 const gql = '/graphql';
 
 const test = ava as TestFn<{
-  app: INestApplication;
+  app: TestingApp;
 }>;
 
 test.before('start app', async t => {
@@ -83,3 +82,9 @@ test('should be able to call apis', async t => {
   // make sure the request id is set
   t.truthy(res.headers['x-request-id']);
 });
+
+test('should not throw internal error when graphql call with invalid params', async t => {
+  await t.throwsAsync(t.context.app.gql(`query { workspace("1") }`), {
+    message: /Failed to execute gql: query { workspace\("1"\) \}, status: 400/,
+  });
+});

packages/backend/server/src/__tests__/utils/testing-app.ts

@@ -162,12 +162,18 @@ export class TestingApp extends ApplyType<INestApplication>() {
     if (res.status !== 200) {
       throw new Error(
         `Failed to execute gql: ${query}, status: ${res.status}, body: ${JSON.stringify(
-          res.body
+          res.body,
+          null,
+          2
         )}`
       );
     }
 
     if (res.body.errors?.length) {
+      if (TEST_LOG_LEVEL !== 'fatal') {
+        // print the error stack when log level is not fatal, for better debugging
+        console.error('%o', res.body);
+      }
       throw new Error(res.body.errors[0].message);
     }