first commit

java/queue/QueueTester.java

@@ -0,0 +1,32 @@
+package queue;
+
+import base.Asserts;
+import base.TestCounter;
+
+import java.util.stream.Stream;
+
+/**
+ * @author Georgiy Korneev (kgeorgiy@kgeorgiy.info)
+ */
+public class QueueTester<M extends Queues.QueueModel> extends ArrayQueueTester<M> {
+    /* package-private */ QueueTester(final Class<M> type, final Queues.QueueChecker<M> tester, final Queues.Splitter<M> splitter) {
+        super(type, tester, splitter);
+    }
+
+    public void test(final TestCounter counter) {
+        test(counter, "LinkedQueue", ReflectionTest.Mode.CLASS);
+        test(counter, "ArrayQueue", ReflectionTest.Mode.CLASS);
+    }
+
+    private static boolean implementsQueue(final Class<?> type) {
+        return type != Object.class
+                && (Stream.of(type.getInterfaces()).map(Class::getName).anyMatch("queue.Queue"::equals)
+                || implementsQueue(type.getSuperclass()));
+    }
+
+    @Override
+    protected void checkImplementation(final Class<?> type) {
+        Asserts.assertTrue(type + " should extend AbstractQueue", "queue.AbstractQueue".equals(type.getSuperclass().getName()));
+        Asserts.assertTrue(type + " should implement interface Queue", implementsQueue(type));
+    }
+}