test: add teardown dependency to clean db after tests

packages/e2e-tests/knexfile.js

@@ -0,0 +1,25 @@
+const fileExtension = 'js';
+
+const knexConfig = {
+  client: 'pg',
+  connection: {
+    host: process.env.POSTGRES_HOST,
+    user: process.env.POSTGRES_USERNAME,
+    port: process.env.POSTGRES_PORT,
+    password: process.env.POSTGRES_PASSWORD,
+    database: process.env.POSTGRES_DATABASE
+  },
+  searchPath: ['public'],
+  pool: { min: 0, max: 20 },
+  migrations: {
+    directory: '../../packages/backend/src/db/migrations/',
+    extension: fileExtension,
+    loadExtensions: [`.${fileExtension}`],
+  },
+  seeds: {
+    directory: '../../packages/backend/src/db/seeds',
+  },
+  ...(process.env.APP_ENV === 'test' ? knexSnakeCaseMappers() : {}),
+};
+
+export default knexConfig;