Function TestObjectEachCallbackErrorPropagation

path_fuzz_test.go:734–776

============================================================================= ObjectEach callback-error propagation test (closes Dimension 2) ============================================================================= ObjectEach's documented contract: a callback-returned error aborts iteration an

(t *testing.T)

//
// Verifies: SYS-REQ-007 (ObjectEach callback error propagation).
func TestObjectEachCallbackErrorPropagation(t *testing.T) {
	// Build a valid object with multiple keys so the callback fires >1 time.
	data := []byte(`{"a":1,"b":2,"c":3,"d":4,"e":5}`)
	sentinel := fmt.Errorf("sequence-callback-sentinel")
	seen := 0
	err := ObjectEach(data, func(key, value []byte, dt ValueType, off int) error {
		seen++
		if seen == 3 {
			return sentinel
		}
		return nil
	})
	if err != sentinel {
		t.Errorf("ObjectEach did not return the callback's sentinel error: got %v want %v (seen=%d)",
			err, sentinel, seen)
	}
	if seen != 3 {
		t.Errorf("ObjectEach did not abort on callback error: callback fired %d times, want 3", seen)
	}

	// Also exercise the path with empty / malformed input to ensure the
	// error-abort path is panic-free on adversarial shapes.
	for _, adversarial := range [][]byte{
		[]byte(`{`),
		[]byte(`{"a"`),
		[]byte(`{"a":`),
		[]byte(`{"a":1,`),
		[]byte(``),
		[]byte(`}`),
		[]byte(`{}`),
	} {
		func() {
			defer func() {
				if r := recover(); r != nil {
					t.Errorf("PANIC in ObjectEach callback-error path on %q: %v", adversarial, r)
				}
			}()
			_ = ObjectEach(adversarial, func(key, value []byte, dt ValueType, off int) error {
				return sentinel
			})
		}()
	}
}

// TestEachKeyMultiPathInvariants closes the EachKey multi-path blind spot
// deterministically. EachKey's purpose is to resolve MULTIPLE key paths in