40 lines
1.5 KiB
JavaScript
40 lines
1.5 KiB
JavaScript
/**
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* Property-Based Test: Short Passwords Are Rejected (Server-Side)
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*
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* Feature: user-profile, Property 6 (server-side): Short passwords are rejected
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*
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* For any string of length 0 to 7, the server-side validation logic
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* (newPassword.length < 8) correctly identifies them as too short,
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* meaning the password change would return 400 and the stored hash
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* would remain unchanged.
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*
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* Validates: Requirements 2.5, 5.4
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*/
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const fc = require('fast-check');
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describe('Feature: user-profile, Property 6 (server-side): Short passwords are rejected', () => {
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it('any string of length 0–7 is rejected by the server-side length validation', () => {
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fc.assert(
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fc.property(
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// Generate arbitrary strings of length 0 to 7
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fc.string({ minLength: 0, maxLength: 7 }),
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(shortPassword) => {
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// This is the exact validation check from POST /api/auth/change-password:
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// if (newPassword.length < 8) return res.status(400).json({ error: '...' })
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const wouldBeRejected = shortPassword.length < 8;
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// Every generated string must be rejected by the validation
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expect(wouldBeRejected).toBe(true);
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// The stored hash remains unchanged because the route returns
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// early before reaching the bcrypt.hash / UPDATE query.
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// This is a structural guarantee — the early return prevents
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// any mutation of the password_hash column.
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}
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),
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{ numRuns: 100 }
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);
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});
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});
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