Function TestGetStringUnicodeEdgeCases

obligation_property_test.go:590–646

Verifies: SYS-REQ-093 MCDC SYS-REQ-093: getstring_input_has_unicode_edge_cases=T, getstring_handles_unicode_edges_safely=T => TRUE

(t *testing.T)

// Verifies: SYS-REQ-093
// MCDC SYS-REQ-093: getstring_input_has_unicode_edge_cases=T, getstring_handles_unicode_edges_safely=T => TRUE
func TestGetStringUnicodeEdgeCases(t *testing.T) {
	cases := []struct {
		name     string
		jsonData string
		key      string
		wantErr  bool
	}{
		{
			name:     "BOM character",
			jsonData: `{"s":"\uFEFF"}`,
			key:      "s",
		},
		{
			name:     "zero-width joiner",
			jsonData: `{"s":"\u200D"}`,
			key:      "s",
		},
		{
			name:     "replacement character",
			jsonData: `{"s":"\uFFFD"}`,
			key:      "s",
		},
		{
			name:     "null character escape",
			jsonData: `{"s":"\u0000"}`,
			key:      "s",
		},
		{
			name:     "max BMP codepoint",
			jsonData: `{"s":"\uFFFF"}`,
			key:      "s",
		},
		{
			name:     "multi-byte UTF-8 literal in value",
			jsonData: "{\"s\":\"\xe2\x80\x8b\"}", // zero-width space (U+200B) as raw UTF-8
			key:      "s",
		},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			defer func() {
				if r := recover(); r != nil {
					t.Fatalf("GetString panicked on %s: %v", tc.name, r)
				}
			}()

			val, err := GetString([]byte(tc.jsonData), tc.key)
			if tc.wantErr && err == nil {
				t.Fatalf("Expected error for %s", tc.name)
			}
			if !tc.wantErr && err != nil {
				t.Fatalf("GetString(%s) returned error: %v", tc.name, err)
			}
			_ = val
		})
	}
}