AI Implementation feature(867): Admin Area Players Management (#56)

tests/backend/setup-create-admin.spec.ts

@@ -5,7 +5,7 @@ process.env.FRONTEND_DIST = './frontend/dist';
 import { Test } from '@nestjs/testing';
 import { INestApplication, ValidationPipe } from '@nestjs/common';
 import { HttpAdapterHost } from '@nestjs/core';
-import { Repository } from 'typeorm';
+import { DataSource, Repository } from 'typeorm';
 import { getRepositoryToken } from '@nestjs/typeorm';
 import { AppModule } from '../../backend/src/app.module';
 import { GlobalExceptionFilter } from '../../backend/src/common/filters/global-exception.filter';
@@ -40,8 +40,44 @@ describe('Setup: POST /api/v1/setup/create-admin', () => {
   });
 
   beforeEach(async () => {
-    await refreshTokens.clear();
-    await users.clear();
+    // The deployment-wide last-admin triggers reject the deletion of
+    // the last admin row, which is exactly what `clear()` would attempt
+    // when a prior test left a sole admin in the table. Disable the
+    // triggers for the duration of the cleanup, then re-enable them.
+    const ds = app.get(DataSource);
+    await ds.query(`DROP TRIGGER IF EXISTS "trg_user_last_admin_update"`);
+    await ds.query(`DROP TRIGGER IF EXISTS "trg_user_last_admin_delete"`);
+    try {
+      await refreshTokens.clear();
+      await users.clear();
+    } finally {
+      await ds.query(`
+        CREATE TRIGGER IF NOT EXISTS "trg_user_last_admin_update"
+        BEFORE UPDATE OF "role" ON "user"
+        FOR EACH ROW
+        WHEN OLD."role" = 'admin' AND NEW."role" <> 'admin'
+          AND NOT EXISTS (
+            SELECT 1 FROM "user" AS "other"
+            WHERE "other"."role" = 'admin' AND "other"."id" <> OLD."id"
+          )
+        BEGIN
+          SELECT RAISE(ABORT, 'LAST_ADMIN');
+        END;
+      `);
+      await ds.query(`
+        CREATE TRIGGER IF NOT EXISTS "trg_user_last_admin_delete"
+        BEFORE DELETE ON "user"
+        FOR EACH ROW
+        WHEN OLD."role" = 'admin'
+          AND NOT EXISTS (
+            SELECT 1 FROM "user" AS "other"
+            WHERE "other"."role" = 'admin' AND "other"."id" <> OLD."id"
+          )
+        BEGIN
+          SELECT RAISE(ABORT, 'LAST_ADMIN');
+        END;
+      `);
+    }
   });
 
   it('creates the very first admin and exposes a session + cookie', async () => {