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package de.edu.hsfulda.ciip.tdd;
import static org.hamcrest.CoreMatchers.equalTo; import static org.junit.Assert.assertThat; import static org.mockito.Mockito.mock;
import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.Collections; import java.util.List;
import org.junit.Test; import org.junit.runner.RunWith; import org.junit.runners.Parameterized; import org.junit.runners.Parameterized.Parameter; import org.junit.runners.Parameterized.Parameters;
@RunWith(Parameterized.class) public class StatusDeadTest { private static State[] states = { mock(State.class, "alife"), new StateDead() }; private static final int alife = 0; private static final int dead = 1;
@Parameters(name = "{index}: condition: {0} expected: {2}") public static Collection<Object[]> data() {
return Arrays .asList(new Object[][] { { "all dead", 0, dead }, { "one alife", 1, dead }, { "two alife", 2, dead }, { "four alife", 4, dead }, { "five alife", 5, dead }, { "three alife", 3, alife } }); }
@Parameter // first data value (0) is default
public /* NOT private */ String assertMessage;
@Parameter(1) public /* NOT private */ int aliveneigborCount;
@Parameter(2) public /* NOT private */ int expected;
@Test public void calculateNextState() { // arrange
List<State> neigborStates = new ArrayList<>(); for (int i = 0; i < aliveneigborCount; i++) neigborStates.add(states[alife]); while (neigborStates.size() < 8) { neigborStates.add(states[dead]); } Collections.shuffle(neigborStates);
// act
State stateDead = states[dead]; State result = stateDead.nextBy(neigborStates);
// assert
assertThat(assertMessage, result, equalTo(states[expected])); }
}
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