feat: Workflow engine modules (#6128)

packages/workflow-engine-inmemory/integration-tests/utils/database.ts

@@ -0,0 +1,22 @@
+import * as process from "process"
+
+const DB_HOST = process.env.DB_HOST ?? "localhost"
+const DB_USERNAME = process.env.DB_USERNAME ?? ""
+const DB_PASSWORD = process.env.DB_PASSWORD
+const DB_NAME = process.env.DB_TEMP_NAME
+
+export const DB_URL = `postgres://${DB_USERNAME}${
+  DB_PASSWORD ? `:${DB_PASSWORD}` : ""
+}@${DB_HOST}/${DB_NAME}`
+
+interface TestDatabase {
+  clearTables(knex): Promise<void>
+}
+
+export const TestDatabase: TestDatabase = {
+  clearTables: async (knex) => {
+    await knex.raw(`
+      TRUNCATE TABLE workflow_execution CASCADE;
+    `)
+  },
+}