keys:           []string{"connection_string", "comment"},
			expectedFields: map[string]struct{}{},
		},
	}
	for _, test := range tests {
		t.Run("", func(t *testing.T) {
			gotFields := kvFields(test.input, test.keys)
			if len(gotFields) != len(test.expectedFields) {
				t.Errorf("Expected keys %d, found %d", len(test.expectedFields), len(gotFields))
			}
			found := true
			for _, field := range gotFields {