move design patterns to new module (#4206)

* move design patterns to new module

* fix logger import

patterns/design-patterns/src/test/java/com/baeldung/AdapterPatternIntegrationTest.java

@@ -0,0 +1,30 @@
+package com.baeldung;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import com.baeldung.adapter.AstonMartin;
+import com.baeldung.adapter.BugattiVeyron;
+import com.baeldung.adapter.McLaren;
+import com.baeldung.adapter.Movable;
+import com.baeldung.adapter.MovableAdapter;
+import com.baeldung.adapter.MovableAdapterImpl;
+
+public class AdapterPatternIntegrationTest {
+    @Test
+    public void givenMovableAdapter_WhenConvertingMPHToKMPH_thenSuccessfullyConverted() {
+        Movable bugattiVeyron = new BugattiVeyron();
+        MovableAdapter bugattiVeyronAdapter = new MovableAdapterImpl(bugattiVeyron);
+        assertEquals(bugattiVeyronAdapter.getSpeed(), 431.30312, 0.00001);
+
+        Movable mcLaren = new McLaren();
+        MovableAdapter mcLarenAdapter = new MovableAdapterImpl(mcLaren);
+        assertEquals(mcLarenAdapter.getSpeed(), 387.85094, 0.00001);
+
+        Movable astonMartin = new AstonMartin();
+        MovableAdapter astonMartinAdapter = new MovableAdapterImpl(astonMartin);
+        assertEquals(astonMartinAdapter.getSpeed(), 354.0548, 0.00001);
+    }
+}
+