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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import React from 'react';
import { render } from 'ink-testing-library';
import { Text } from 'ink';
import { LoadingIndicator } from './LoadingIndicator.js';
import { StreamingContext } from '../contexts/StreamingContext.js';
import { StreamingState } from '../types.js';
import { vi } from 'vitest';
import * as useTerminalSize from '../hooks/useTerminalSize.js';
// Mock GeminiRespondingSpinner
vi.mock('./GeminiRespondingSpinner.js', () => ({
GeminiRespondingSpinner: ({
nonRespondingDisplay,
}: {
nonRespondingDisplay?: string;
}) => {
const streamingState = React.useContext(StreamingContext)!;
if (streamingState === StreamingState.Responding) {
return <Text>MockRespondingSpinner</Text>;
} else if (nonRespondingDisplay) {
return <Text>{nonRespondingDisplay}</Text>;
}
return null;
},
}));
vi.mock('../hooks/useTerminalSize.js', () => ({
useTerminalSize: vi.fn(),
}));
const useTerminalSizeMock = vi.mocked(useTerminalSize.useTerminalSize);
const renderWithContext = (
ui: React.ReactElement,
streamingStateValue: StreamingState,
width = 120,
) => {
useTerminalSizeMock.mockReturnValue({ columns: width, rows: 24 });
const contextValue: StreamingState = streamingStateValue;
return render(
<StreamingContext.Provider value={contextValue}>
{ui}
</StreamingContext.Provider>,
);
};
describe('<LoadingIndicator />', () => {
const defaultProps = {
currentLoadingPhrase: 'Loading...',
elapsedTime: 5,
};
it('should not render when streamingState is Idle', () => {
const { lastFrame } = renderWithContext(
<LoadingIndicator {...defaultProps} />,
StreamingState.Idle,
);
expect(lastFrame()).toBe('');
});
it('should render spinner, phrase, and time when streamingState is Responding', () => {
const { lastFrame } = renderWithContext(
<LoadingIndicator {...defaultProps} />,
StreamingState.Responding,
);
const output = lastFrame();
expect(output).toContain('MockRespondingSpinner');
expect(output).toContain('Loading...');
expect(output).toContain('(esc to cancel, 5s)');
});
it('should render spinner (static), phrase but no time/cancel when streamingState is WaitingForConfirmation', () => {
const props = {
currentLoadingPhrase: 'Confirm action',
elapsedTime: 10,
};
const { lastFrame } = renderWithContext(
<LoadingIndicator {...props} />,
StreamingState.WaitingForConfirmation,
);
const output = lastFrame();
expect(output).toContain('⠏'); // Static char for WaitingForConfirmation
expect(output).toContain('Confirm action');
expect(output).not.toContain('(esc to cancel)');
expect(output).not.toContain(', 10s');
});
it('should display the currentLoadingPhrase correctly', () => {
const props = {
currentLoadingPhrase: 'Processing data...',
elapsedTime: 3,
};
const { lastFrame } = renderWithContext(
<LoadingIndicator {...props} />,
StreamingState.Responding,
);
expect(lastFrame()).toContain('Processing data...');
});
it('should display the elapsedTime correctly when Responding', () => {
const props = {
currentLoadingPhrase: 'Working...',
elapsedTime: 60,
};
const { lastFrame } = renderWithContext(
<LoadingIndicator {...props} />,
StreamingState.Responding,
);
expect(lastFrame()).toContain('(esc to cancel, 1m)');
});
it('should display the elapsedTime correctly in human-readable format', () => {
const props = {
currentLoadingPhrase: 'Working...',
elapsedTime: 125,
};
const { lastFrame } = renderWithContext(
<LoadingIndicator {...props} />,
StreamingState.Responding,
);
expect(lastFrame()).toContain('(esc to cancel, 2m 5s)');
});
it('should render rightContent when provided', () => {
const rightContent = <Text>Extra Info</Text>;
const { lastFrame } = renderWithContext(
<LoadingIndicator {...defaultProps} rightContent={rightContent} />,
StreamingState.Responding,
);
expect(lastFrame()).toContain('Extra Info');
});
it('should transition correctly between states using rerender', () => {
const { lastFrame, rerender } = renderWithContext(
<LoadingIndicator {...defaultProps} />,
StreamingState.Idle,
);
expect(lastFrame()).toBe(''); // Initial: Idle
// Transition to Responding
rerender(
<StreamingContext.Provider value={StreamingState.Responding}>
<LoadingIndicator
currentLoadingPhrase="Now Responding"
elapsedTime={2}
/>
</StreamingContext.Provider>,
);
let output = lastFrame();
expect(output).toContain('MockRespondingSpinner');
expect(output).toContain('Now Responding');
expect(output).toContain('(esc to cancel, 2s)');
// Transition to WaitingForConfirmation
rerender(
<StreamingContext.Provider value={StreamingState.WaitingForConfirmation}>
<LoadingIndicator
currentLoadingPhrase="Please Confirm"
elapsedTime={15}
/>
</StreamingContext.Provider>,
);
output = lastFrame();
expect(output).toContain('⠏');
expect(output).toContain('Please Confirm');
expect(output).not.toContain('(esc to cancel)');
expect(output).not.toContain(', 15s');
// Transition back to Idle
rerender(
<StreamingContext.Provider value={StreamingState.Idle}>
<LoadingIndicator {...defaultProps} />
</StreamingContext.Provider>,
);
expect(lastFrame()).toBe('');
});
it('should display fallback phrase if thought is empty', () => {
const props = {
thought: null,
currentLoadingPhrase: 'Loading...',
elapsedTime: 5,
};
const { lastFrame } = renderWithContext(
<LoadingIndicator {...props} />,
StreamingState.Responding,
);
const output = lastFrame();
expect(output).toContain('Loading...');
});
it('should display the subject of a thought', () => {
const props = {
thought: {
subject: 'Thinking about something...',
description: 'and other stuff.',
},
elapsedTime: 5,
};
const { lastFrame } = renderWithContext(
<LoadingIndicator {...props} />,
StreamingState.Responding,
);
const output = lastFrame();
expect(output).toBeDefined();
if (output) {
expect(output).toContain('Thinking about something...');
expect(output).not.toContain('and other stuff.');
}
});
it('should prioritize thought.subject over currentLoadingPhrase', () => {
const props = {
thought: {
subject: 'This should be displayed',
description: 'A description',
},
currentLoadingPhrase: 'This should not be displayed',
elapsedTime: 5,
};
const { lastFrame } = renderWithContext(
<LoadingIndicator {...props} />,
StreamingState.Responding,
);
const output = lastFrame();
expect(output).toContain('This should be displayed');
expect(output).not.toContain('This should not be displayed');
});
describe('responsive layout', () => {
it('should render on a single line on a wide terminal', () => {
const { lastFrame } = renderWithContext(
<LoadingIndicator
{...defaultProps}
rightContent={<Text>Right</Text>}
/>,
StreamingState.Responding,
120,
);
const output = lastFrame();
// Check for single line output
expect(output?.includes('\n')).toBe(false);
expect(output).toContain('Loading...');
expect(output).toContain('(esc to cancel, 5s)');
expect(output).toContain('Right');
});
it('should render on multiple lines on a narrow terminal', () => {
const { lastFrame } = renderWithContext(
<LoadingIndicator
{...defaultProps}
rightContent={<Text>Right</Text>}
/>,
StreamingState.Responding,
79,
);
const output = lastFrame();
const lines = output?.split('\n');
// Expecting 3 lines:
// 1. Spinner + Primary Text
// 2. Cancel + Timer
// 3. Right Content
expect(lines).toHaveLength(3);
if (lines) {
expect(lines[0]).toContain('Loading...');
expect(lines[0]).not.toContain('(esc to cancel, 5s)');
expect(lines[1]).toContain('(esc to cancel, 5s)');
expect(lines[2]).toContain('Right');
}
});
it('should use wide layout at 80 columns', () => {
const { lastFrame } = renderWithContext(
<LoadingIndicator {...defaultProps} />,
StreamingState.Responding,
80,
);
expect(lastFrame()?.includes('\n')).toBe(false);
});
it('should use narrow layout at 79 columns', () => {
const { lastFrame } = renderWithContext(
<LoadingIndicator {...defaultProps} />,
StreamingState.Responding,
79,
);
expect(lastFrame()?.includes('\n')).toBe(true);
});
});
});
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