test-helpers.ts•1.59 kB
import { promisify } from 'util';
import { exec as execCallback } from 'child_process';
export const exec = promisify(execCallback);
/**
* Wait for a container to be healthy by checking the health endpoint
*/
export async function waitForHealthy(containerName: string, timeout = 10000): Promise<boolean> {
const startTime = Date.now();
while (Date.now() - startTime < timeout) {
try {
const { stdout } = await exec(
`docker exec ${containerName} curl -s http://localhost:3000/health`
);
if (stdout.includes('ok')) {
return true;
}
} catch (error) {
// Container might not be ready yet
}
await new Promise(resolve => setTimeout(resolve, 500));
}
return false;
}
/**
* Check if a container is running in HTTP mode by verifying the server is listening
*/
export async function isRunningInHttpMode(containerName: string): Promise<boolean> {
try {
const { stdout } = await exec(
`docker exec ${containerName} sh -c "netstat -tln 2>/dev/null | grep :3000 || echo 'Not listening'"`
);
return stdout.includes(':3000');
} catch {
return false;
}
}
/**
* Get process environment variables from inside a running container
*/
export async function getProcessEnv(containerName: string, varName: string): Promise<string | null> {
try {
const { stdout } = await exec(
`docker exec ${containerName} sh -c "cat /proc/1/environ | tr '\\0' '\\n' | grep '^${varName}=' | cut -d= -f2-"`
);
return stdout.trim() || null;
} catch {
return null;
}
}