bowling-kata/src/test/java/BowlingCalculatorTest.java

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;

import java.util.stream.Stream;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class BowlingCalculatorTest {

    @ParameterizedTest(name = "[{index}] {0} scores {2}")
    @MethodSource("playerResults")
    void test(String testName, String playerResult, int expectedScore) {
        BowlingGameCalculator bgc = new BowlingGameCalculator();

        int calculatedScore = bgc.score(playerResult);

        assertEquals(expectedScore, calculatedScore, String.format("%s: %s", testName, playerResult));
    }

    private static Stream<Arguments> playerResults() {
        return Stream.of(
                Arguments.of("worst game", "0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0", 0),   // 20x 0
                Arguments.of("some incomplete frames", "0,1,2,3,0,0,4,0,0,5,0,0,6,0,0,0,0,0,0,0", 21)
        );
    }
}