File size: 4,048 Bytes
d810ed8
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

import {
  CompressionStatus,
  type ChatCompressionInfo,
  type GeminiClient,
} from '@google/gemini-cli-core';
import { vi, describe, it, expect, beforeEach } from 'vitest';
import { compressCommand } from './compressCommand.js';
import { createMockCommandContext } from '../../test-utils/mockCommandContext.js';
import { MessageType } from '../types.js';

describe('compressCommand', () => {
  let context: ReturnType<typeof createMockCommandContext>;
  let mockTryCompressChat: ReturnType<typeof vi.fn>;

  beforeEach(() => {
    mockTryCompressChat = vi.fn();
    context = createMockCommandContext({
      services: {
        config: {
          getGeminiClient: () =>
            ({
              tryCompressChat: mockTryCompressChat,
            }) as unknown as GeminiClient,
        },
      },
    });
  });

  it('should do nothing if a compression is already pending', async () => {
    context.ui.pendingItem = {
      type: MessageType.COMPRESSION,
      compression: {
        isPending: true,
        originalTokenCount: null,
        newTokenCount: null,
        compressionStatus: null,
      },
    };
    await compressCommand.action!(context, '');
    expect(context.ui.addItem).toHaveBeenCalledWith(
      expect.objectContaining({
        type: MessageType.ERROR,
        text: 'Already compressing, wait for previous request to complete',
      }),
      expect.any(Number),
    );
    expect(context.ui.setPendingItem).not.toHaveBeenCalled();
    expect(mockTryCompressChat).not.toHaveBeenCalled();
  });

  it('should set pending item, call tryCompressChat, and add result on success', async () => {
    const compressedResult: ChatCompressionInfo = {
      originalTokenCount: 200,
      compressionStatus: CompressionStatus.COMPRESSED,
      newTokenCount: 100,
    };
    mockTryCompressChat.mockResolvedValue(compressedResult);

    await compressCommand.action!(context, '');

    expect(context.ui.setPendingItem).toHaveBeenNthCalledWith(1, {
      type: MessageType.COMPRESSION,
      compression: {
        isPending: true,
        compressionStatus: null,
        originalTokenCount: null,
        newTokenCount: null,
      },
    });

    expect(mockTryCompressChat).toHaveBeenCalledWith(
      expect.stringMatching(/^compress-\d+$/),
      true,
    );

    expect(context.ui.addItem).toHaveBeenCalledWith(
      {
        type: MessageType.COMPRESSION,
        compression: {
          isPending: false,
          compressionStatus: CompressionStatus.COMPRESSED,
          originalTokenCount: 200,
          newTokenCount: 100,
        },
      },
      expect.any(Number),
    );

    expect(context.ui.setPendingItem).toHaveBeenNthCalledWith(2, null);
  });

  it('should add an error message if tryCompressChat returns falsy', async () => {
    mockTryCompressChat.mockResolvedValue(null);

    await compressCommand.action!(context, '');

    expect(context.ui.addItem).toHaveBeenCalledWith(
      expect.objectContaining({
        type: MessageType.ERROR,
        text: 'Failed to compress chat history.',
      }),
      expect.any(Number),
    );
    expect(context.ui.setPendingItem).toHaveBeenCalledWith(null);
  });

  it('should add an error message if tryCompressChat throws', async () => {
    const error = new Error('Compression failed');
    mockTryCompressChat.mockRejectedValue(error);

    await compressCommand.action!(context, '');

    expect(context.ui.addItem).toHaveBeenCalledWith(
      expect.objectContaining({
        type: MessageType.ERROR,
        text: `Failed to compress chat history: ${error.message}`,
      }),
      expect.any(Number),
    );
    expect(context.ui.setPendingItem).toHaveBeenCalledWith(null);
  });

  it('should clear the pending item in a finally block', async () => {
    mockTryCompressChat.mockRejectedValue(new Error('some error'));
    await compressCommand.action!(context, '');
    expect(context.ui.setPendingItem).toHaveBeenCalledWith(null);
  });
});