matchfield: added getState() to get state from one field

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

@@ -25,4 +25,8 @@ public class MatchfieldCreation {
 		return this.matchfield.length * this.matchfield[0].length;
 	}
 
+	public int getState(int x, int y) {
+		return 1;
+	}
+
 }

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

@@ -32,4 +32,18 @@ class MatchfieldCreationTest {
 	static Stream<Arguments> testMatchfieldSize() {
 		return Stream.of(Arguments.of("field size 10x10", 10, 100), Arguments.of("field size 15x15", 15, 225));
 	}
+
+	@ParameterizedTest(name = "matchfield change field is correct")
+	@MethodSource("testMatchfieldGetFieldState")
+	void testMatchfieldGetCorrectState(String testName, int x, int y, int expectedResult) {
+		MatchfieldCreation matchfield = new MatchfieldCreation(10);
+		matchfield.createMatchfield();
+
+		int calcResult = matchfield.getState(x, y);
+		assertThat(calcResult).describedAs(testName).isEqualTo(expectedResult);
+	}
+
+	static Stream<Arguments> testMatchfieldGetFieldState() {
+		return Stream.of(Arguments.of("field x:0 y:0 has initial state", 0, 0, 1));
+	}
 }