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test(wallet-context): regression coverage for malformed persisted session JSON #1171

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test(wallet-context): regression coverage for malformed persisted session JSON #1171

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33 changes: 33 additions & 0 deletions frontend/src/context/wallet-context.test.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,39 @@ describe('WalletProvider', () => {
expect(result.current.session).toBeNull();
});

it('should recover from syntactically invalid stored JSON without crashing', async () => {
localStorage.setItem(STORAGE_KEY, '{not valid json,,,');

const { result } = renderHook(() => useWallet(), {
wrapper: createWrapper(),
});

await waitFor(() => {
expect(result.current.isHydrated).toBe(true);
});

expect(result.current.status).toBe('idle');
expect(result.current.session).toBeNull();
expect(result.current.errorMessage).toBeNull();
expect(localStorage.getItem(STORAGE_KEY)).toBeNull();
});

it('should discard a stored session that parses to a non-object value', async () => {
localStorage.setItem(STORAGE_KEY, JSON.stringify('just-a-string'));

const { result } = renderHook(() => useWallet(), {
wrapper: createWrapper(),
});

await waitFor(() => {
expect(result.current.isHydrated).toBe(true);
});

expect(result.current.status).toBe('idle');
expect(result.current.session).toBeNull();
expect(localStorage.getItem(STORAGE_KEY)).toBeNull();
});

it('should discard a session with mocked !== false', async () => {
const mockedSession = { ...mockSession, mocked: true };
localStorage.setItem(STORAGE_KEY, JSON.stringify(mockedSession));
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