import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
import { writeFileSync, rmSync, existsSync } from 'fs';
import { join } from 'path';
import { homedir } from 'os';
// IMPORTANT: This is an integration test - reset mocks before importing
vi.doUnmock('./docker.js');
vi.resetModules();
import { loadHostConfigs } from './docker.js';
describe('Config Loading Integration (Rename Verification)', () => {
let originalEnv: Record<string, string | undefined>;
let originalCwd: string;
let testConfigFile: string | null = null;
beforeEach(() => {
// Save original state
originalCwd = process.cwd();
originalEnv = {
SYNAPSE_HOSTS_CONFIG: process.env.SYNAPSE_HOSTS_CONFIG,
SYNAPSE_CONFIG_FILE: process.env.SYNAPSE_CONFIG_FILE
};
// Change to /tmp to prevent loading config files from project directory
process.chdir('/tmp');
// Clear environment variables and set CONFIG_FILE to nonexistent to skip file loading
delete process.env.SYNAPSE_HOSTS_CONFIG;
process.env.SYNAPSE_CONFIG_FILE = '/tmp/nonexistent-synapse-config-for-testing.json';
});
afterEach(() => {
// Restore environment
process.chdir(originalCwd);
if (originalEnv.SYNAPSE_HOSTS_CONFIG !== undefined) {
process.env.SYNAPSE_HOSTS_CONFIG = originalEnv.SYNAPSE_HOSTS_CONFIG;
} else {
delete process.env.SYNAPSE_HOSTS_CONFIG;
}
if (originalEnv.SYNAPSE_CONFIG_FILE !== undefined) {
process.env.SYNAPSE_CONFIG_FILE = originalEnv.SYNAPSE_CONFIG_FILE;
} else {
delete process.env.SYNAPSE_CONFIG_FILE;
}
// Cleanup test config file
if (testConfigFile && existsSync(testConfigFile)) {
rmSync(testConfigFile, { force: true });
testConfigFile = null;
}
});
it('should read SYNAPSE_HOSTS_CONFIG environment variable (renamed from HOMELAB_HOSTS_CONFIG)', () => {
const configJson = '[{"name":"env-test","host":"192.168.1.1","port":2375,"protocol":"http"}]';
process.env.SYNAPSE_HOSTS_CONFIG = configJson;
const hosts = loadHostConfigs();
expect(hosts.some(h => h.name === 'env-test')).toBe(true);
const envHost = hosts.find(h => h.name === 'env-test');
expect(envHost).toBeDefined();
expect(envHost?.host).toBe('192.168.1.1');
});
it('should verify synapse naming convention is used (not homelab)', () => {
// Test verifies the config system uses "synapse" naming, not "homelab"
// This is a regression test from the homelab → synapse rename refactor
const config = {
hosts: [
{ name: 'test', host: 'localhost', port: 2375, protocol: 'http' }
]
};
// Create a temp file to verify naming convention
testConfigFile = join(homedir(), '.synapse-mcp-test-temp.json');
writeFileSync(testConfigFile, JSON.stringify(config));
// Verify file was created with synapse naming, not homelab
expect(existsSync(testConfigFile)).toBe(true);
expect(testConfigFile).toContain('synapse');
expect(testConfigFile).not.toContain('homelab');
// Integration: Set SYNAPSE_CONFIG_FILE to point to the temp file and load it
process.env.SYNAPSE_CONFIG_FILE = testConfigFile;
const hosts = loadHostConfigs();
// Verify the config was actually loaded from the file
expect(hosts.some(h => h.name === 'test')).toBe(true);
const testHost = hosts.find(h => h.name === 'test');
expect(testHost).toBeDefined();
expect(testHost?.host).toBe('localhost');
expect(testHost?.port).toBe(2375);
expect(testHost?.protocol).toBe('http');
});
it('should use SYNAPSE_ prefix for environment variables (renamed from HOMELAB_)', () => {
// Verify the env var names are correctly renamed
const validConfig = '[{"name":"test","host":"localhost","port":2375,"protocol":"http"}]';
// Test SYNAPSE_HOSTS_CONFIG works
process.env.SYNAPSE_HOSTS_CONFIG = validConfig;
const hosts = loadHostConfigs();
expect(hosts.length).toBeGreaterThan(0);
// Clean up
delete process.env.SYNAPSE_HOSTS_CONFIG;
// Verify HOMELAB_HOSTS_CONFIG would NOT work (would fall back to local)
delete process.env.HOMELAB_HOSTS_CONFIG;
const hostsWithOldName = loadHostConfigs();
// Should only have the default "local" host since HOMELAB_ prefix is not recognized
expect(hostsWithOldName.every(h => h.name !== 'test')).toBe(true);
});
});
