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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { render } from 'ink-testing-library';
import { describe, it, expect, vi } from 'vitest';
import { ToolStatsDisplay } from './ToolStatsDisplay.js';
import * as SessionContext from '../contexts/SessionContext.js';
import { SessionMetrics } from '../contexts/SessionContext.js';
// Mock the context to provide controlled data for testing
vi.mock('../contexts/SessionContext.js', async (importOriginal) => {
const actual = await importOriginal<typeof SessionContext>();
return {
...actual,
useSessionStats: vi.fn(),
};
});
const useSessionStatsMock = vi.mocked(SessionContext.useSessionStats);
const renderWithMockedStats = (metrics: SessionMetrics) => {
useSessionStatsMock.mockReturnValue({
stats: {
sessionStartTime: new Date(),
metrics,
lastPromptTokenCount: 0,
promptCount: 5,
},
getPromptCount: () => 5,
startNewPrompt: vi.fn(),
});
return render(<ToolStatsDisplay />);
};
describe('<ToolStatsDisplay />', () => {
it('should render "no tool calls" message when there are no active tools', () => {
const { lastFrame } = renderWithMockedStats({
models: {},
tools: {
totalCalls: 0,
totalSuccess: 0,
totalFail: 0,
totalDurationMs: 0,
totalDecisions: { accept: 0, reject: 0, modify: 0 },
byName: {},
},
});
expect(lastFrame()).toContain(
'No tool calls have been made in this session.',
);
expect(lastFrame()).toMatchSnapshot();
});
it('should display stats for a single tool correctly', () => {
const { lastFrame } = renderWithMockedStats({
models: {},
tools: {
totalCalls: 1,
totalSuccess: 1,
totalFail: 0,
totalDurationMs: 100,
totalDecisions: { accept: 1, reject: 0, modify: 0 },
byName: {
'test-tool': {
count: 1,
success: 1,
fail: 0,
durationMs: 100,
decisions: { accept: 1, reject: 0, modify: 0 },
},
},
},
});
const output = lastFrame();
expect(output).toContain('test-tool');
expect(output).toMatchSnapshot();
});
it('should display stats for multiple tools correctly', () => {
const { lastFrame } = renderWithMockedStats({
models: {},
tools: {
totalCalls: 3,
totalSuccess: 2,
totalFail: 1,
totalDurationMs: 300,
totalDecisions: { accept: 1, reject: 1, modify: 1 },
byName: {
'tool-a': {
count: 2,
success: 1,
fail: 1,
durationMs: 200,
decisions: { accept: 1, reject: 1, modify: 0 },
},
'tool-b': {
count: 1,
success: 1,
fail: 0,
durationMs: 100,
decisions: { accept: 0, reject: 0, modify: 1 },
},
},
},
});
const output = lastFrame();
expect(output).toContain('tool-a');
expect(output).toContain('tool-b');
expect(output).toMatchSnapshot();
});
it('should handle large values without wrapping or overlapping', () => {
const { lastFrame } = renderWithMockedStats({
models: {},
tools: {
totalCalls: 999999999,
totalSuccess: 888888888,
totalFail: 111111111,
totalDurationMs: 987654321,
totalDecisions: {
accept: 123456789,
reject: 98765432,
modify: 12345,
},
byName: {
'long-named-tool-for-testing-wrapping-and-such': {
count: 999999999,
success: 888888888,
fail: 111111111,
durationMs: 987654321,
decisions: {
accept: 123456789,
reject: 98765432,
modify: 12345,
},
},
},
},
});
expect(lastFrame()).toMatchSnapshot();
});
it('should handle zero decisions gracefully', () => {
const { lastFrame } = renderWithMockedStats({
models: {},
tools: {
totalCalls: 1,
totalSuccess: 1,
totalFail: 0,
totalDurationMs: 100,
totalDecisions: { accept: 0, reject: 0, modify: 0 },
byName: {
'test-tool': {
count: 1,
success: 1,
fail: 0,
durationMs: 100,
decisions: { accept: 0, reject: 0, modify: 0 },
},
},
},
});
const output = lastFrame();
expect(output).toContain('Total Reviewed Suggestions:');
expect(output).toContain('0');
expect(output).toContain('Overall Agreement Rate:');
expect(output).toContain('--');
expect(output).toMatchSnapshot();
});
});
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