Function TestSetEmptyKeyPathComponent

empty_key_path_test.go:179–207

============================================================================= Set — empty key component produces a defined document, no panic (SYS-REQ-009) ============================================================================= Verifies: SYS-REQ-009 [boundary] Set with an empty-string key comp

(t *testing.T)

// createInsertComponent / calcAllocateSpace. The empty key is treated as an
// object property name (not an array index) and produces a defined document.
func TestSetEmptyKeyPathComponent(t *testing.T) {
	cases := []struct {
		name    string
		data    string
		setData string
		keys    []string
	}{
		{name: "single empty key on empty object", data: `{}`, setData: `"v"`, keys: []string{""}},
		{name: "single empty key on populated object", data: `{"a":1}`, setData: `"v"`, keys: []string{""}},
		{name: "empty key leading", data: `{}`, setData: `"v"`, keys: []string{"", "a"}},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			var (
				val []byte
				err error
			)
			runNoPanic(t, tc.name, func() {
				val, err = Set([]byte(tc.data), []byte(tc.setData), tc.keys...)
			})
			if err != nil {
				t.Fatalf("Set(%q,%q,%v) returned unexpected error: %v", tc.data, tc.setData, tc.keys, err)
			}
			if val == nil {
				t.Fatalf("Set(%q,%q,%v) returned nil document", tc.data, tc.setData, tc.keys)
			}
		})
	}
}

// =============================================================================
// Delete — empty key component leaves the payload unchanged, no panic