Initial commit

frontend/tests/unit/SleepButton.test.tsx

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+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { render, screen, fireEvent, waitFor } from '@testing-library/react';
+import '@testing-library/jest-dom';
+import SleepButton from '../../src/components/tracker/SleepButton';
+import { useSleepSession } from '../../src/hooks/useSleepSession';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+
+vi.mock('../../src/hooks/useSleepSession', () => ({
+  useSleepSession: vi.fn(),
+}));
+
+const createTestQueryClient = () => new QueryClient({
+  defaultOptions: {
+    queries: { retry: false },
+  },
+});
+
+describe('SleepButton', () => {
+  let queryClient: any;
+
+  beforeEach(() => {
+    queryClient = createTestQueryClient();
+    vi.clearAllMocks();
+  });
+
+  const renderWithProviders = (ui: React.ReactElement) => {
+    return render(
+      <QueryClientProvider client={queryClient}>
+        {ui}
+      </QueryClientProvider>
+    );
+  };
+
+  it('renders "Start Sleep" when no active session', async () => {
+    (useSleepSession as any).mockReturnValue({
+      activeSession: null,
+      isCreating: false,
+      isEnding: false,
+    });
+
+    renderWithProviders(<SleepButton time="2024-01-01T12:00" />);
+    expect(screen.getByRole('button', { name: /Start Sleep/i })).toBeInTheDocument();
+  });
+
+  it('renders "Stop Sleep" when session is active', async () => {
+    (useSleepSession as any).mockReturnValue({
+      activeSession: { id: 1, start_time: '2024-01-01T12:00' },
+      isCreating: false,
+      isEnding: false,
+    });
+
+    renderWithProviders(<SleepButton time="2024-01-01T12:00" />);
+    expect(screen.getByRole('button', { name: /Stop Sleep/i })).toBeInTheDocument();
+  });
+
+  it('calls endSession when session is active and button is clicked', async () => {
+    const endSessionMock = vi.fn();
+    (useSleepSession as any).mockReturnValue({
+      activeSession: { id: 1, start_time: '2024-01-01T12:00' },
+      isCreating: false,
+      isEnding: false,
+      endSession: endSessionMock,
+    });
+
+    renderWithProviders(<SleepButton time="2024-01-01T14:00" />);
+    const button = screen.getByRole('button', { name: /Stop Sleep/i });
+    fireEvent.click(button);
+
+    await waitFor(() => expect(endSessionMock).toHaveBeenCalled());
+  });
+});

frontend/tests/unit/TimeAdjuster.test.tsx

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+import { describe, it, expect, vi } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import '@testing-library/jest-dom';
+import TimeAdjuster from '../../src/components/tracker/TimeAdjuster';
+
+describe('TimeAdjuster', () => {
+  it('renders with default value', () => {
+    const { container } = render(<TimeAdjuster onTimeChange={() => {}} />);
+    const input = container.querySelector('input'); 
+    expect(input).toBeInTheDocument();
+  });
+
+  it('calls onTimeChange when value changes', () => {
+    const handleChange = vi.fn();
+    const { container } = render(<TimeAdjuster onTimeChange={handleChange} />);
+    const input = container.querySelector('input');
+    
+    fireEvent.change(input!, { target: { value: '2024-01-01T12:00' } });
+    expect(handleChange).toHaveBeenCalledWith('2024-01-01T12:00');
+  });
+
+  it('resets to now when reset button is clicked', async () => {
+    const handleChange = vi.fn();
+    render(<TimeAdjuster onTimeChange={handleChange} />);
+    const resetButton = screen.getByText(/Reset to now/i);
+    
+    fireEvent.click(resetButton);
+    expect(handleChange).toHaveBeenCalled();
+  });
+});

frontend/tests/unit/chartHelpers.test.ts

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+import { describe, it, expect } from 'vitest';
+import {
+  buildTimetableSlots,
+  computeWakeupMinutes,
+  computeBedtimeMinutes,
+  computeDailySummaryData,
+  computeAverageStats,
+  reverseDateOrder,
+  filterDaysWithData,
+} from '../../src/utils/chartHelpers';
+import type { TimetableSlot, WakeupBedtimeDay, DailySummaryDay } from '../../src/types';
+
+describe('buildTimetableSlots', () => {
+  it('groups slots by date', () => {
+    const slots: TimetableSlot[] = [
+      { date: '2024-01-15', slot_start: '00:00', slot_end: '00:15', sleeping: true },
+      { date: '2024-01-15', slot_start: '00:15', slot_end: '00:30', sleeping: false },
+      { date: '2024-01-16', slot_start: '00:00', slot_end: '00:15', sleeping: true },
+    ];
+    const result = buildTimetableSlots(slots);
+    expect(Object.keys(result)).toHaveLength(2);
+    expect(result['2024-01-15']).toHaveLength(2);
+    expect(result['2024-01-16']).toHaveLength(1);
+  });
+});
+
+describe('computeWakeupMinutes', () => {
+  it('transforms wakeup data for chart', () => {
+    const days: WakeupBedtimeDay[] = [
+      { date: '2024-01-15', wakeup_minutes: 195, bedtime_minutes: 75 },
+    ];
+    const result = computeWakeupMinutes(days, '04:00');
+    expect(result[0].time).toBe('07:15');
+    expect(result[0].minutes).toBe(195);
+  });
+
+  it('handles null values', () => {
+    const days: WakeupBedtimeDay[] = [
+      { date: '2024-01-15', wakeup_minutes: null, bedtime_minutes: null },
+    ];
+    const result = computeWakeupMinutes(days, '04:00');
+    expect(result[0].time).toBe('N/A');
+  });
+});
+
+describe('computeBedtimeMinutes', () => {
+  it('transforms bedtime data for chart', () => {
+    const days: WakeupBedtimeDay[] = [
+      { date: '2024-01-15', wakeup_minutes: 195, bedtime_minutes: 75 },
+    ];
+    const result = computeBedtimeMinutes(days, '19:00');
+    expect(result[0].time).toBe('20:15');
+  });
+});
+
+describe('computeDailySummaryData', () => {
+  it('transforms daily summary for BarChart', () => {
+    const days: DailySummaryDay[] = [
+      { date: '2024-01-15', total_minutes: 720, day_minutes: 120, night_minutes: 600 },
+    ];
+    const result = computeDailySummaryData(days);
+    expect(result[0]).toEqual({
+      date: '2024-01-15',
+      daySleep: 120,
+      nightSleep: 600,
+      total: 720,
+    });
+  });
+});
+
+describe('computeAverageStats', () => {
+  it('calculates averages from daily data', () => {
+    const days: DailySummaryDay[] = [
+      { date: '2024-01-15', total_minutes: 720, day_minutes: 120, night_minutes: 600 },
+      { date: '2024-01-16', total_minutes: 600, day_minutes: 100, night_minutes: 500 },
+    ];
+    const result = computeAverageStats(days);
+    expect(result.avgTotal).toBe(660);
+    expect(result.avgDay).toBe(110);
+    expect(result.avgNight).toBe(550);
+    expect(result.count).toBe(2);
+  });
+
+  it('handles empty array', () => {
+    const result = computeAverageStats([]);
+    expect(result.avgTotal).toBe(0);
+    expect(result.count).toBe(0);
+  });
+});
+
+describe('reverseDateOrder', () => {
+  it('reverses array order', () => {
+    const days = [
+      { date: '2024-01-16' },
+      { date: '2024-01-15' },
+      { date: '2024-01-14' },
+    ];
+    const result = reverseDateOrder(days);
+    expect(result[0].date).toBe('2024-01-14');
+  });
+});
+
+describe('filterDaysWithData', () => {
+  it('filters days with zero total', () => {
+    const days = [
+      { date: '2024-01-15', total_minutes: 720 },
+      { date: '2024-01-16', total_minutes: 0 },
+    ];
+    const result = filterDaysWithData(days);
+    expect(result).toHaveLength(1);
+    expect(result[0].date).toBe('2024-01-15');
+  });
+});

frontend/tests/unit/time.test.ts

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+import { describe, it, expect } from 'vitest';
+import {
+  formatMinutesAfter,
+  toLocalDatetimeInputValue,
+  formatElapsedTime,
+  clampToDay,
+  parseTime,
+  formatMinutes,
+  getDaysAgo,
+  getToday,
+} from '../../src/utils/time';
+
+describe('formatMinutesAfter', () => {
+  it('converts positive minutes after reference', () => {
+    expect(formatMinutesAfter(75, '04:00')).toBe('05:15');
+  });
+
+  it('handles zero minutes', () => {
+    expect(formatMinutesAfter(0, '04:00')).toBe('04:00');
+  });
+
+  it('wraps around midnight for large values', () => {
+    expect(formatMinutesAfter(480, '04:00')).toBe('12:00');
+  });
+
+  it('handles null input', () => {
+    expect(formatMinutesAfter(null, '04:00')).toBe('N/A');
+  });
+
+  it('handles negative minutes', () => {
+    expect(formatMinutesAfter(-30, '04:00')).toBe('03:30');
+  });
+});
+
+describe('toLocalDatetimeInputValue', () => {
+  it('converts Date to datetime-local format', () => {
+    const date = new Date('2024-01-15T21:30:00Z');
+    const result = toLocalDatetimeInputValue(date);
+    expect(result).toMatch(/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}$/);
+  });
+});
+
+describe('formatElapsedTime', () => {
+  it('formats hours and minutes', () => {
+    const twoHoursAgo = new Date(Date.now() - 2 * 60 * 60 * 1000).toISOString();
+    expect(formatElapsedTime(twoHoursAgo)).toBe('2h');
+  });
+
+  it('formats minutes only', () => {
+    const thirtyMinsAgo = new Date(Date.now() - 30 * 60 * 1000).toISOString();
+    expect(formatElapsedTime(thirtyMinsAgo)).toBe('30m');
+  });
+});
+
+describe('clampToDay', () => {
+  it('clamps to start of day', () => {
+    const date = new Date('2024-01-15T15:30:00');
+    const result = clampToDay(date, 'start');
+    expect(result.getHours()).toBe(0);
+    expect(result.getMinutes()).toBe(0);
+  });
+
+  it('clamps to end of day', () => {
+    const date = new Date('2024-01-15T15:30:00');
+    const result = clampToDay(date, 'end');
+    expect(result.getHours()).toBe(23);
+    expect(result.getMinutes()).toBe(59);
+  });
+});
+
+describe('parseTime', () => {
+  it('parses HH:MM string to Date', () => {
+    const result = parseTime('07:30');
+    expect(result.getHours()).toBe(7);
+    expect(result.getMinutes()).toBe(30);
+  });
+});
+
+describe('formatMinutes', () => {
+  it('formats hours and minutes', () => {
+    expect(formatMinutes(90)).toBe('1h 30m');
+  });
+
+  it('formats hours only', () => {
+    expect(formatMinutes(120)).toBe('2h');
+  });
+
+  it('formats minutes only', () => {
+    expect(formatMinutes(45)).toBe('45m');
+  });
+});
+
+describe('getDaysAgo', () => {
+  it('returns date string for N days ago', () => {
+    const result = getDaysAgo(7);
+    expect(result).toMatch(/^\d{4}-\d{2}-\d{2}$/);
+  });
+});
+
+describe('getToday', () => {
+  it('returns today date string', () => {
+    const result = getToday();
+    const today = new Date().toISOString().split('T')[0];
+    expect(result).toBe(today);
+  });
+});