foreach()->forEach()

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jollamobile.com>
test: exec only fns

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jollamobile.com>
unit tests: util

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jollamobile.com>