--- exercises/102_testing.zig	2023-10-03 22:15:22.125574535 +0200
+++ answers/102_testing.zig	2023-10-05 20:04:07.302771500 +0200
@@ -83,7 +83,7 @@
 // an error that you need
 // to correct.
 test "sub" {
-    try testing.expect(sub(10, 5) == 6);
+    try testing.expect(sub(10, 5) == 5);
 
     try testing.expect(sub(3, 1.5) == 1.5);
 }
@@ -108,5 +108,5 @@
     // Now we test if the function returns an error
     // if we pass a zero as denominator.
     // But which error needs to be tested?
-    try testing.expectError(error.???, divide(15, 0));
+    try testing.expectError(error.DivisionByZero, divide(15, 0));
 }