2025SELab2-project-Dwengo/frontend/tests/setup-backend.ts

47 lines
1.3 KiB
TypeScript

import { spawn } from "child_process";
import { ChildProcess, execSync } from 'node:child_process';
let wasRunningBefore: boolean;
let backendProcess: ChildProcess;
async function waitForEndpoint(url: string, delay = 1000, retries = 60): Promise<void> {
try {
await fetch(url);
} catch {
// Endpoint is not ready yet
await new Promise((resolve) => setTimeout(resolve, delay));
// Retry
await waitForEndpoint(url, delay, retries - 1);
}
}
export async function setup(): Promise<void> {
// Check if the database container is already running
const containerCheck = execSync("docker ps --filter 'name=db' --format '{{.Names}}'");
wasRunningBefore = !(containerCheck.toString().includes("db"));
// Spin up the database
execSync("docker compose up db --detach");
// Spin up the backend
backendProcess = spawn("npm", ["run", "dev"], {
cwd: "../backend",
stdio: "inherit",
});
// Wait until you can curl the backend
await waitForEndpoint("http://localhost:3000/api");
}
export async function teardown(): Promise<void> {
if (backendProcess) {
backendProcess.kill();
}
if (wasRunningBefore) {
spawn("docker", ["compose", "down"], {
cwd: "..",
stdio: "inherit",
});
}
}