File size: 10,390 Bytes
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import { SyncDescriptor } from '#/_base/di/descriptors';
import { DisposableStore } from '#/_base/di/lifecycle';
import { TestInstantiationService } from '#/_base/di/test';
import { UserCancellationError } from '#/_base/utils/abort';
import { IBootstrapService } from '#/app/bootstrap/bootstrap';
import { IEventBus } from '#/app/event/eventBus';
import { ITelemetryService } from '#/app/telemetry/telemetry';
import { IHostEnvironment } from '#/os/interface/hostEnvironment';
import { IHostFileSystem, type HostFileStat } from '#/os/interface/hostFileSystem';
import { IAgentPermissionModeService } from '#/agent/permissionMode/permissionMode';
import { IAgentProfileService } from '#/agent/profile/profile';
import { IAgentAgentsMdReminderService } from '#/agent/agentsMdReminder/agentsMdReminder';
import { IEventDispatcher } from '#/state/eventDispatcher';
import { ErrorCodes, Error2 } from '#/errors';
import type { AgentContext } from '#/agent/agentContext/agentContext';
import { IAgentScopeContext } from '#/agent/scopeContext/scopeContext';
import { IAgentLifecycleService } from '#/session/agentLifecycle/agentLifecycle';
import { ISessionContext } from '#/session/sessionContext/sessionContext';
import { ISessionInitService } from '#/features/sessionInit/sessionInit';
import { SessionInitService } from '#/features/sessionInit/sessionInitService';
import { IAgentReminderService } from '#/features/reminder/reminderService';
import { ISessionSubagentService } from '#/session/subagent/subagent';
import { stubAgentContext } from '../../agent/agentContext/stubs';
const WORK_DIR = '/project';
const AGENTS_MD = 'latest project instructions';
const AGENTS_MD_PATH = `${WORK_DIR}/AGENTS.md`;
const GIT_DIR_PATH = `${WORK_DIR}/.git`;
describe('SessionInitService', () => {
let disposables: DisposableStore;
let ix: TestInstantiationService;
let events: unknown[];
let appendReminder: ReturnType<typeof vi.fn>;
let seedInjected: ReturnType<typeof vi.fn>;
let flush: ReturnType<typeof vi.fn>;
let republishStatus: ReturnType<typeof vi.fn>;
let create: ReturnType<typeof vi.fn>;
let run: ReturnType<typeof vi.fn>;
let runCompletion: Promise<{ summary: string; usage?: undefined }>;
beforeEach(() => {
disposables = new DisposableStore();
ix = disposables.add(new TestInstantiationService());
events = [];
appendReminder = vi.fn(() => 'reminder-id');
seedInjected = vi.fn();
flush = vi.fn(async () => {});
republishStatus = vi.fn(() => {
events.push({ type: 'agent.status.updated', model: 'mock-model' });
});
runCompletion = Promise.resolve({ summary: 'Explored and wrote AGENTS.md', usage: undefined });
const handles: Record<string, { id: string; accessor: { get: (id: unknown) => unknown } }> = {};
const lifecycle = {
_serviceBrand: undefined,
hooks: {
onWillStartAgentTask: { run: vi.fn(async () => {}) },
},
notifyAgentTaskStopped: vi.fn(),
handleOf: vi.fn((agentId: string) => handles[agentId]),
create: vi.fn(async () => stubAgentContext('agent-0', 1)),
run: vi.fn(async (agent: AgentContext) => ({
agentId: agent.agentId,
turn: {},
completion: runCompletion,
})),
};
create = lifecycle.create;
run = lifecycle.run;
const eventBus = { publish: vi.fn((event: unknown) => events.push(event)) };
const telemetry = { track: vi.fn(), track2: vi.fn() };
const profile = {
data: () => ({ modelAlias: 'mock-model', thinkingLevel: 'off' }),
};
const permissionMode = { mode: 'auto', setMode: vi.fn() };
handles['main'] = {
id: 'main',
accessor: {
get: (id: unknown) => {
if (id === IAgentLifecycleService) return lifecycle;
if (id === ISessionSubagentService) return lifecycle;
if (id === IAgentScopeContext) {
return { agentContext: stubAgentContext('main', 1) };
}
if (id === IAgentProfileService) return profile;
if (id === IAgentPermissionModeService) return permissionMode;
if (id === IAgentAgentsMdReminderService) return { seedInjected };
if (id === IAgentReminderService) return { notify: appendReminder };
if (id === IEventDispatcher) {
return {
flush,
dispatch: async (event: unknown) => {
eventBus.publish(event);
},
};
}
if (id === IEventBus) return eventBus;
if (id === ITelemetryService) return telemetry;
return undefined;
},
},
};
handles['agent-0'] = {
id: 'agent-0',
accessor: {
get: (id: unknown) => {
if (id === IAgentScopeContext) {
return {
agentId: 'agent-0',
agentContext: stubAgentContext('agent-0', 1),
};
}
if (id === IAgentPermissionModeService) return permissionMode;
if (id === IAgentProfileService)
return { republishStatus, getEffectiveThinkingLevel: () => 'off' };
return undefined;
},
},
};
ix.stub(IAgentLifecycleService, lifecycle as unknown as IAgentLifecycleService);
ix.stub(ISessionSubagentService, lifecycle as unknown as ISessionSubagentService);
ix.stub(IHostFileSystem, {
_serviceBrand: undefined,
stat: vi.fn(async (path: string): Promise<HostFileStat> => {
if (path === GIT_DIR_PATH) return { isFile: false, isDirectory: true, size: 0 };
if (path === AGENTS_MD_PATH)
return { isFile: true, isDirectory: false, size: AGENTS_MD.length };
throw new Error(`ENOENT: ${path}`);
}),
readText: vi.fn(async (path: string) => {
if (path === AGENTS_MD_PATH) return AGENTS_MD;
throw new Error(`ENOENT: ${path}`);
}),
} as unknown as IHostFileSystem);
ix.stub(IHostEnvironment, {
_serviceBrand: undefined,
homeDir: '/home',
} as unknown as IHostEnvironment);
ix.stub(IBootstrapService, {
_serviceBrand: undefined,
homeDir: '/home/brand',
} as unknown as IBootstrapService);
ix.stub(ISessionContext, {
_serviceBrand: undefined,
cwd: WORK_DIR,
} as unknown as ISessionContext);
ix.set(ISessionInitService, new SyncDescriptor(SessionInitService));
});
afterEach(() => disposables.dispose());
it('spawns a coder subagent, reloads AGENTS.md, and reminds the main agent', async () => {
const svc = ix.get(ISessionInitService);
await svc.generateAgentsMd();
expect(create).toHaveBeenCalledTimes(1);
expect(create.mock.calls[0]![0]).toMatchObject({
binding: { profile: 'coder', model: 'mock-model', thinking: 'off' },
});
expect(run).toHaveBeenCalledTimes(1);
const runArgs = run.mock.calls[0]!;
expect(runArgs[0]).toMatchObject({ agentId: 'agent-0', generation: 1 });
expect(runArgs[1]).toMatchObject({ kind: 'prompt' });
expect((runArgs[1] as { prompt: string }).prompt).toContain('Task requirements:');
expect(appendReminder).toHaveBeenCalledTimes(1);
const [content, notification] = appendReminder.mock.calls[0] as [
string,
{ variant: string },
];
expect(notification).toEqual({ variant: 'init' });
expect(content).toContain('The user just ran `/init` slash command.');
expect(content).toContain('Latest AGENTS.md file content:');
expect(content).toContain(AGENTS_MD);
expect(seedInjected).toHaveBeenCalledWith([AGENTS_MD_PATH], WORK_DIR);
expect(flush).toHaveBeenCalledTimes(1);
expect(events).toContainEqual(
expect.objectContaining({
type: 'subagent.spawned',
subagentId: 'agent-0',
subagentName: 'coder',
parentToolCallId: 'generate-agents-md',
callerAgentId: 'main',
model: 'mock-model',
thinkingEffort: 'off',
}),
);
expect(republishStatus).toHaveBeenCalledTimes(1);
const eventTypes = events.map((event) => (event as { type?: string }).type);
const spawnedIndex = eventTypes.indexOf('subagent.spawned');
expect(eventTypes[spawnedIndex + 1]).toBe('agent.status.updated');
expect(events).toContainEqual(
expect.objectContaining({ type: 'subagent.completed', subagentId: 'agent-0' }),
);
});
it('wraps a subagent failure in SESSION_INIT_FAILED', async () => {
run.mockImplementationOnce((agentId: string) => ({
agentId,
turn: {},
completion: Promise.reject(new Error('coder exploded')),
}));
const svc = ix.get(ISessionInitService);
const error = await svc.generateAgentsMd().catch((e) => e);
expect(error).toBeInstanceOf(Error2);
expect((error as Error2).code).toBe(ErrorCodes.SESSION_INIT_FAILED);
expect((error as Error2).message).toContain('coder exploded');
});
it('throws AGENT_NOT_FOUND when the main agent is missing', async () => {
const lifecycle = ix.get(IAgentLifecycleService) as unknown as {
handleOf: ReturnType<typeof vi.fn>;
};
lifecycle.handleOf.mockReturnValue(undefined);
const svc = ix.get(ISessionInitService);
const error = await svc.generateAgentsMd().catch((e) => e);
expect(error).toBeInstanceOf(Error2);
expect((error as Error2).code).toBe(ErrorCodes.AGENT_NOT_FOUND);
});
it('cancelInit aborts the in-flight run without wrapping the cancellation', async () => {
run.mockImplementationOnce((agentId: string, _req: unknown, opts: { signal: AbortSignal }) => ({
agentId,
turn: {},
completion: new Promise<{ summary: string }>((_resolve, reject) => {
opts.signal.addEventListener('abort', () => reject(opts.signal.reason));
}),
}));
const svc = ix.get(ISessionInitService);
const pending = svc.generateAgentsMd();
await vi.waitFor(() => expect(run).toHaveBeenCalled());
svc.cancelInit();
const error = await pending.catch((e) => e);
expect(error).toBeInstanceOf(UserCancellationError);
expect(events).not.toContainEqual(
expect.objectContaining({ type: 'subagent.failed', subagentId: 'agent-0' }),
);
});
it('cancelInit is a no-op when no init run is in flight', () => {
const svc = ix.get(ISessionInitService);
expect(() => svc.cancelInit()).not.toThrow();
});
});
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