matchfield: added setState() function

src/main/java/de/tims/fleetstorm/matchfield/MatchfieldCreation.java

@@ -26,7 +26,11 @@ public class MatchfieldCreation {
 	}
 
 	public int getState(int x, int y) {
-		return 1;
+		return this.matchfield[x][y];
+	}
+
+	public void setState(int x, int y, int state) {
+		this.matchfield[x][y] = state;
 	}
 
 }

src/test/java/de/tims/fleetstorm/matchfield/MatchfieldCreationTest.java

@@ -33,7 +33,7 @@ class MatchfieldCreationTest {
 		return Stream.of(Arguments.of("field size 10x10", 10, 100), Arguments.of("field size 15x15", 15, 225));
 	}
 
-	@ParameterizedTest(name = "matchfield change field is correct")
+	@ParameterizedTest(name = "matchfield get field is correct")
 	@MethodSource("testMatchfieldGetFieldState")
 	void testMatchfieldGetCorrectState(String testName, int x, int y, int expectedResult) {
 		MatchfieldCreation matchfield = new MatchfieldCreation(10);
@@ -46,4 +46,20 @@ class MatchfieldCreationTest {
 	static Stream<Arguments> testMatchfieldGetFieldState() {
 		return Stream.of(Arguments.of("field x:0 y:0 has initial state", 0, 0, 1));
 	}
+
+	@ParameterizedTest(name = "matchfield change field is correct")
+	@MethodSource("testMatchfieldSetStateIsCorrect")
+	void testMatchfieldGetCorrectState(String testName, int x, int y, int state, int expectedResult) {
+		MatchfieldCreation matchfield = new MatchfieldCreation(10);
+		matchfield.createMatchfield();
+
+		matchfield.setState(x, y, state);
+
+		int calcResult = matchfield.getState(x, y);
+		assertThat(calcResult).describedAs(testName).isEqualTo(expectedResult);
+	}
+
+	static Stream<Arguments> testMatchfieldSetStateIsCorrect() {
+		return Stream.of(Arguments.of("field x:0 y:0 has state 2 after setState()", 0, 0, 2, 2));
+	}
 }