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test(calculate): add variation 2 multi-week gap timeline coverage #3394

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Merged
JhaSourav07 merged 1 commit into from
Jun 4, 2026
Merged

test(calculate): add variation 2 multi-week gap timeline coverage #3394

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44 changes: 44 additions & 0 deletions lib/calculate.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,50 @@ describe('calculateStreak', () => {
expect(result.longestStreak).toBe(7);
expect(result.totalContributions).toBe(14);
});
it('verify streak formulas for multiple weeks gaps timeline (Variation 2)', () => {
// Streak 1: 5 days
// Gap: 14 days (2 full weeks)
// Streak 2: 9 days (current + longest)

const calendar = buildCalendar([
1,
1,
1,
1,
1, // Streak 1

0,
0,
0,
0,
0,
0,
0, // Gap week 1
0,
0,
0,
0,
0,
0,
0, // Gap week 2

1,
1,
1,
1,
1,
1,
1,
1,
1, // Streak 2
]);

const result = calculateStreak(calendar);

expect(result.currentStreak).toBe(9);
expect(result.longestStreak).toBe(9);
expect(result.totalContributions).toBe(14);
});

it('counts an active streak when the last day has contributions', () => {
// The last element represents "today" — committing today keeps the streak alive.
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