Extract statics getMax and getSecondMax

test/aud/exam/prep/SequenceProcessorTest.java

@@ -239,10 +239,7 @@ public abstract class SequenceProcessorTest<S> {
     void testThat_maxWorks(List<Integer> list) {
         list.add(-1);
         S s = processor.create(list);
-        var max = list
+        Integer max = Tests.getMax(list);
-            .stream()
-            .max(CMP)
-            .orElseThrow();
         assertEquals(max, processor.max(s, CMP));
     }
 
@@ -252,12 +249,7 @@ public abstract class SequenceProcessorTest<S> {
         list.add(-1);
         list.add(-2);
         S s = processor.create(list);
-        var max = list
+        Integer max = Tests.getSecondMax(list);
-            .stream()
-            .sorted(CMP.reversed())
-            .skip(1)
-            .findFirst()
-            .orElseThrow();
         assertEquals(max, processor.secondMax(s, CMP));
     }
 

test/aud/exam/prep/Tests.java

@@ -19,4 +19,20 @@ public class Tests {
             .boxed()
             .collect(Collectors.toList());
     }
+
+    public static Integer getMax(List<Integer> list) {
+        return list
+            .stream()
+            .max(CMP)
+            .orElseThrow();
+    }
+
+    public static Integer getSecondMax(List<Integer> list) {
+        return list
+            .stream()
+            .sorted(CMP.reversed())
+            .skip(1)
+            .findFirst()
+            .orElseThrow();
+    }
 }