test: Implement factory for the execution model

packages/backend/test/factories/execution.ts

@@ -0,0 +1,14 @@
+import Execution from '../../src/models/execution';
+import { createFlow } from './flow';
+
+export const createExecution = async (params: Partial<Execution> = {}) => {
+  params.flowId = params?.flowId || (await createFlow()).id;
+  params.testRun = params?.testRun || false;
+
+  const [execution] = await global.knex
+    .table('execution')
+    .insert(params)
+    .returning('*');
+
+  return execution;
+};