Class E2ETestContext

java/src/test/java/com/github/copilot/E2ETestContext.java:55–532

E2E test context that manages the test environment including the CapiProxy, working directories, and CLI path. This provides a complete test environment similar to the Node.js, .NET, Go, and Python SDK test harnesses. It manages: A replaying CapiProxy for deterministic API respons

 * </pre>
 */
public class E2ETestContext implements AutoCloseable {

    private static final Logger LOG = Logger.getLogger(E2ETestContext.class.getName());

    /**
     * The default GitHub token used by the CLI in e2e tests. The proxy resolves
     * this token to the default Copilot user registered at context creation.
     */
    private static final String DEFAULT_GITHUB_TOKEN = "fake-token-for-e2e-tests";
    private static final Pattern SNAKE_CASE = Pattern.compile("[^a-zA-Z0-9]");
    private static final Pattern USER_CONTENT_PATTERN = Pattern
            .compile("^\\s+-\\s+role:\\s+user\\s*$\\s+content:\\s*(.+?)$", Pattern.MULTILINE);

    private final String cliPath;
    private final Path homeDir;
    private final Path workDir;
    private String proxyUrl;
    private final CapiProxy proxy;
    private final Path repoRoot;
    private Path currentSnapshotFile;

    private E2ETestContext(String cliPath, Path homeDir, Path workDir, String proxyUrl, CapiProxy proxy,
            Path repoRoot) {
        this.cliPath = cliPath;
        this.homeDir = homeDir;
        this.workDir = workDir;
        this.proxyUrl = proxyUrl;
        this.proxy = proxy;
        this.repoRoot = repoRoot;
    }

    /**
     * Creates a new E2E test context.
     *
     * @return the test context
     * @throws IOException
     *             if setup fails
     * @throws InterruptedException
     *             if setup is interrupted
     */
    public static E2ETestContext create() throws IOException, InterruptedException {
        Path repoRoot = findRepoRoot();
        String cliPath = getCliPath(repoRoot);

        Path tempDir = Paths.get(System.getProperty("java.io.tmpdir"));
        Path homeDir = Files.createTempDirectory(tempDir, "copilot-test-config-");
        Path workDir = Files.createTempDirectory(tempDir, "copilot-test-work-");

        CapiProxy proxy = new CapiProxy();
        String proxyUrl = proxy.start();

        // Register a default Copilot user for the CLI's default token so the proxy's
        // /copilot_internal/user endpoint returns a valid user (HTTP 200) instead of
        // 401 "Bad credentials". CLI 1.0.64-1 gates MCP enablement on this user:
        // `is_mcp_enabled` (added by the proxy) is the global gate, and snake_case
        // `copilot_plan` makes the third-party MCP policy resolver early-return
        // allow-all for non-org plans (anything other than business/enterprise),
        // avoiding a /copilot/mcp_registry network call the proxy does not serve.