=== Result Pattern Tests ===

✓ Test 1 PASSED: Success with data
✓ Test 2 PASSED: Success without data
✓ Test 3 PASSED: Error result
✓ Test 4 PASSED: Success result has null error
✓ Test 5 PASSED: Chaining success operations
✓ Test 6 PASSED: Chaining error short-circuit
✓ Test 7 PASSED: get() helper method
✓ Test 8 PASSED: get() with default value
✓ Test 9 PASSED: has() helper method
✓ Test 10 PASSED: Error returns empty data array
✓ Test 11 PASSED: Success always returns isSuccess() true
✓ Test 12 PASSED: Error always returns isSuccess() false

=== Test Summary ===
Passed: 12
Failed: 0
Total: 12

✓ All tests passed!