gstack/browse/test/server-factory.test.ts

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import { describe, test, expect } from 'bun:test';
import {
resolveConfigFromEnv,
type ServerConfig,
type ServerHandle,
type Surface,
} from '../src/server';
import { TUNNEL_COMMANDS, canDispatchOverTunnel } from '../src/server';
/**
* Tests for the factory-export API surface added so gbrowser (phoenix) can
* consume gstack as a submodule. The full buildFetchHandler hybrid hoist is
* deferred to a follow-up PR; this test file proves the type contract,
* resolveConfigFromEnv behavior, and preserved exports.
*/
describe('server.ts factory API surface', () => {
describe('resolveConfigFromEnv', () => {
test('honors AUTH_TOKEN env var', () => {
const orig = process.env.AUTH_TOKEN;
process.env.AUTH_TOKEN = 'fixed-test-token-abc123';
try {
const cfg = resolveConfigFromEnv();
expect(cfg.authToken).toBe('fixed-test-token-abc123');
} finally {
if (orig === undefined) delete process.env.AUTH_TOKEN;
else process.env.AUTH_TOKEN = orig;
}
});
test('falls back to randomUUID when AUTH_TOKEN env is empty', () => {
const orig = process.env.AUTH_TOKEN;
process.env.AUTH_TOKEN = '';
try {
const cfg = resolveConfigFromEnv();
// randomUUID returns a 36-char hex+dash string.
expect(cfg.authToken).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/);
} finally {
if (orig === undefined) delete process.env.AUTH_TOKEN;
else process.env.AUTH_TOKEN = orig;
}
});
test('falls back to randomUUID when AUTH_TOKEN is whitespace-only', () => {
const orig = process.env.AUTH_TOKEN;
process.env.AUTH_TOKEN = ' \t \n ';
try {
const cfg = resolveConfigFromEnv();
expect(cfg.authToken).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/);
expect(cfg.authToken.length).toBe(36);
} finally {
if (orig === undefined) delete process.env.AUTH_TOKEN;
else process.env.AUTH_TOKEN = orig;
}
});
test('AUTH_TOKEN whitespace is stripped (including unicode whitespace)', () => {
const orig = process.env.AUTH_TOKEN;
// 22 chars after stripping leading/trailing whitespace including BOM (U+FEFF)
// and zero-width space (U+200B), so passes the 16-char minimum.
process.env.AUTH_TOKEN = ' padded-token-abc123xyz ';
try {
const cfg = resolveConfigFromEnv();
expect(cfg.authToken).toBe('padded-token-abc123xyz');
} finally {
if (orig === undefined) delete process.env.AUTH_TOKEN;
else process.env.AUTH_TOKEN = orig;
}
});
test('AUTH_TOKEN shorter than 16 chars after stripping falls back to randomUUID', () => {
const orig = process.env.AUTH_TOKEN;
// Only 5 chars of content — too short for the 16-char minimum.
process.env.AUTH_TOKEN = 'short';
try {
const cfg = resolveConfigFromEnv();
// Must be a UUID, not the rejected short token.
expect(cfg.authToken).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/);
} finally {
if (orig === undefined) delete process.env.AUTH_TOKEN;
else process.env.AUTH_TOKEN = orig;
}
});
test('AUTH_TOKEN of only zero-width unicode whitespace falls back to randomUUID', () => {
const orig = process.env.AUTH_TOKEN;
// U+200B (ZWSP), U+FEFF (BOM), U+00A0 (NBSP) — would pass .trim() but not the unicode-aware strip.
process.env.AUTH_TOKEN = ' ';
try {
const cfg = resolveConfigFromEnv();
expect(cfg.authToken).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/);
} finally {
if (orig === undefined) delete process.env.AUTH_TOKEN;
else process.env.AUTH_TOKEN = orig;
}
});
test('reads BROWSE_PORT from env, defaults to 0', () => {
const orig = process.env.BROWSE_PORT;
process.env.BROWSE_PORT = '34567';
try {
expect(resolveConfigFromEnv().browsePort).toBe(34567);
} finally {
if (orig === undefined) delete process.env.BROWSE_PORT;
else process.env.BROWSE_PORT = orig;
}
const origUnset = process.env.BROWSE_PORT;
delete process.env.BROWSE_PORT;
try {
expect(resolveConfigFromEnv().browsePort).toBe(0);
} finally {
if (origUnset !== undefined) process.env.BROWSE_PORT = origUnset;
}
});
test('reads BROWSE_IDLE_TIMEOUT from env, defaults to 30 min (1800000ms)', () => {
const orig = process.env.BROWSE_IDLE_TIMEOUT;
delete process.env.BROWSE_IDLE_TIMEOUT;
try {
expect(resolveConfigFromEnv().idleTimeoutMs).toBe(1800000);
} finally {
if (orig !== undefined) process.env.BROWSE_IDLE_TIMEOUT = orig;
}
});
test('returns a populated config object with the expected shape', () => {
const cfg = resolveConfigFromEnv();
expect(cfg).toMatchObject({
authToken: expect.any(String),
browsePort: expect.any(Number),
idleTimeoutMs: expect.any(Number),
config: expect.objectContaining({
stateDir: expect.any(String),
stateFile: expect.any(String),
auditLog: expect.any(String),
}),
});
});
});
describe('preserved exports', () => {
test('TUNNEL_COMMANDS still exported and populated', () => {
expect(TUNNEL_COMMANDS).toBeInstanceOf(Set);
expect(TUNNEL_COMMANDS.size).toBeGreaterThan(0);
expect(TUNNEL_COMMANDS.has('goto')).toBe(true);
expect(TUNNEL_COMMANDS.has('click')).toBe(true);
});
test('canDispatchOverTunnel still exported and functional', () => {
expect(canDispatchOverTunnel('goto')).toBe(true);
expect(canDispatchOverTunnel('shutdown')).toBe(false);
expect(canDispatchOverTunnel(null)).toBe(false);
expect(canDispatchOverTunnel(undefined)).toBe(false);
expect(canDispatchOverTunnel('')).toBe(false);
});
});
describe('type surface compiles', () => {
// Compile-time shape checks. If these break, TypeScript fails to build
// the test file — which is exactly the API-compat guarantee we want for
// embedders depending on these types.
test('Surface type accepts the two known values', () => {
const local: Surface = 'local';
const tunnel: Surface = 'tunnel';
expect(local).toBe('local');
expect(tunnel).toBe('tunnel');
});
test('ServerConfig type accepts the documented minimum-required fields', () => {
// This compiles only if ServerConfig accepts these field names + types.
const minimalConfigShape = {
authToken: 'tok',
browsePort: 0,
idleTimeoutMs: 1800000,
config: { stateDir: '', stateFile: '', consoleLog: '', networkLog: '', dialogLog: '', auditLog: '', projectDir: '' },
browserManager: {} as any,
startTime: Date.now(),
} satisfies Partial<ServerConfig>;
expect(minimalConfigShape.authToken).toBe('tok');
});
test('ServerHandle type exposes the documented surface', () => {
// Compiles only if these property names exist on ServerHandle.
type AssertHandleFields = ServerHandle extends {
fetchLocal: any;
fetchTunnel: any;
shutdown: any;
stopListeners: any;
} ? true : false;
const assertion: AssertHandleFields = true;
expect(assertion).toBe(true);
});
});
});