Update KenKenTest_EXTRA.java

Added Test for any Solution of the Riddle

Uebung4/KenKenTest_EXTRA.java

@@ -132,7 +132,7 @@ public class KenKenTest_EXTRA {
         int[][] result = KenKen.solve(kenkenOne);
 
         assertNotNull("Es existiert eine Loesung, sie wurde aber nicht gefunden!", result);
-        assertArrayEquals("Falsche Loesung ermittelt!", solutionOne, KenKen.solve(kenkenOne));
+        checkSolution(kenkenOne,KenKen.solve(kenkenOne));
     }
 
     // ========== HELPER ==========
@@ -156,4 +156,65 @@ public class KenKenTest_EXTRA {
         }
         return copy;
     }
+    
+    protected static final void checkSolution(int[][][] kenken, int[][] solution) {
+		int n=0;//Length of one side of KenKen
+		for(int i=0;i<kenken.length;++i) {
+			for(int j=1;j<kenken[i].length;++j) {
+				if(kenken[i][j][0]+1>n) {
+					n=kenken[i][j][0]+1;
+				}
+				if(kenken[i][j][1]+1>n) {
+					n=kenken[i][j][1]+1;
+				}
+			}
+		}
+		assertEquals("Wrong solution.length",n,solution.length);
+		for(int i=0;i<solution.length;++i) {
+			assertEquals("Wrong solution["+i+"].length",n,solution[i].length);
+		}
+		for(int i=0;i<kenken.length;++i) {
+			if(kenken[i][0][1]==' ') {
+				int expected=kenken[i][0][0];
+				int actual=solution[kenken[i][1][0]][kenken[i][1][1]];
+				assertEquals("Wrong Value for ' '-Riddle in kenken["+i+"]",expected,actual);
+			}else if(kenken[i][0][1]=='-') {
+				int a=solution[kenken[i][1][0]][kenken[i][1][1]];
+				int b=solution[kenken[i][2][0]][kenken[i][2][1]];
+				int result=kenken[i][0][0];
+				boolean correct=false;
+				if(a-b==result||b-a==result) {
+					correct=true;
+				}
+				assertTrue("Wrong Values for '-'-Riddle in kenken["+i+"]",correct);
+			}else if(kenken[i][0][1]=='/') {
+				int a=solution[kenken[i][1][0]][kenken[i][1][1]];
+				int b=solution[kenken[i][2][0]][kenken[i][2][1]];
+				int result=kenken[i][0][0];
+				boolean correct=false;
+				if((a%b==0&&a/b==result)||(b%a==0&&b/a==result)) {
+					correct=true;
+				}
+				assertTrue("Wrong Values for '/'-Riddle in kenken["+i+"]",correct);
+			}else if(kenken[i][0][1]=='+') {
+				int result=kenken[i][0][0];
+				int sum=0;
+				for(int j=1;j<kenken[i].length;++j) {
+					sum+=solution[kenken[i][j][0]][kenken[i][j][1]];
+				}
+				assertEquals("Wrong Values for '+'-Riddle in kenken["+i+"]",result,sum);
+			}else if(kenken[i][0][1]=='*') {
+				int result=kenken[i][0][0];
+				int prod=1;
+				for(int j=1;j<kenken[i].length;++j) {
+					prod*=solution[kenken[i][j][0]][kenken[i][j][1]];
+				}
+				assertEquals("Wrong Values for '*'-Riddle in kenken["+i+"]",result,prod);
+			}else {
+				//throw new Exception("Illegal Kenken");
+				System.err.println("Critical Error: Illegal Kenken");
+			}
+		}
+	}
+
 }
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