Upload files to "java/base"

java/base/Tester.java

@@ -0,0 +1,21 @@
+package base;
+
+/**
+ * @author Georgiy Korneev (kgeorgiy@kgeorgiy.info)
+ */
+public abstract class Tester extends BaseChecker {
+
+    protected Tester(final TestCounter counter) {
+        super(counter);
+    }
+
+    public abstract void test();
+
+    public void run(final Class<?> test, final String... args) {
+        System.out.println(
+            "=== Testing " + test.getSimpleName() + " " + String.join(" ", args)
+        );
+        test();
+        counter.printStatus();
+    }
+}