gemini-cli/integration-tests/context-compress-interactive.test.ts

/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

import { expect, describe, it, beforeEach, afterEach } from 'vitest';
import { TestRig, type } from './test-helper.js';

describe('Interactive Mode', () => {
  let rig: TestRig;

  beforeEach(() => {
    rig = new TestRig();
  });

  afterEach(async () => {
    await rig.cleanup();
  });

  //TODO - https://github.com/google-gemini/gemini-cli/issues/10770
  it.skip('should trigger chat compression with /compress command', async () => {
    await rig.setup('interactive-compress-test');

    const { ptyProcess } = rig.runInteractive();

    let fullOutput = '';
    ptyProcess.onData((data) => (fullOutput += data));

    const authDialogAppeared = await rig.waitForText(
      'How would you like to authenticate',
      5000,
    );

    // select the second option if auth dialog come's up
    if (authDialogAppeared) {
      ptyProcess.write('2');
    }

    // Wait for the app to be ready
    const isReady = await rig.waitForText('Type your message', 15000);
    expect(isReady, 'CLI did not start up in interactive mode correctly').toBe(
      true,
    );

    const longPrompt =
      'Dont do anything except returning a 1000 token long paragragh with the <name of the scientist who discovered theory of relativity> at the end to indicate end of response. This is a moderately long sentence.';

    await type(ptyProcess, longPrompt);
    await type(ptyProcess, '\r');

    await rig.waitForText('einstein', 25000);

    await type(ptyProcess, '/compress');
    // A small delay to allow React to re-render the command list.
    await new Promise((resolve) => setTimeout(resolve, 100));
    await type(ptyProcess, '\r');

    const foundEvent = await rig.waitForTelemetryEvent(
      'chat_compression',
      90000,
    );
    expect(foundEvent, 'chat_compression telemetry event was not found').toBe(
      true,
    );
  });

  //TODO - https://github.com/google-gemini/gemini-cli/issues/10769
  it.skip('should handle compression failure on token inflation', async () => {
    await rig.setup('interactive-compress-test');

    const { ptyProcess } = rig.runInteractive();

    let fullOutput = '';
    ptyProcess.onData((data) => (fullOutput += data));

    const authDialogAppeared = await rig.waitForText(
      'How would you like to authenticate',
      5000,
    );

    // select the second option if auth dialog come's up
    if (authDialogAppeared) {
      ptyProcess.write('2');
    }

    // Wait for the app to be ready
    const isReady = await rig.waitForText('Type your message', 25000);
    expect(isReady, 'CLI did not start up in interactive mode correctly').toBe(
      true,
    );

    await type(ptyProcess, '/compress');
    await new Promise((resolve) => setTimeout(resolve, 100));
    await type(ptyProcess, '\r');

    const compressionFailed = await rig.waitForText(
      'compression was not beneficial',
      25000,
    );

    expect(compressionFailed).toBe(true);
  });
});