Merge remote-tracking branch 'origin/master'

genio · genio · commit f66b18a8f5a9 · 2016-12-28T19:02:55.000Z
diff --git a/src/main/java/com/sar/sandpit/TodooApplication.java b/src/main/java/com/sar/sandpit/TodooApplication.java
@@ -9,4 +9,4 @@ public class TodooApplication {
 	public static void main(String[] args) {
 		SpringApplication.run(TodooApplication.class, args);
 	}
-}
+}
diff --git a/src/test/java/com/sar/sandpit/ItemServiceTest.java b/src/test/java/com/sar/sandpit/ItemServiceTest.java
@@ -9,6 +9,9 @@
 import org.springframework.boot.test.mock.mockito.MockBean;
 import org.springframework.test.context.junit4.SpringRunner;
 
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
 import static org.hamcrest.CoreMatchers.equalTo;
 import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.CoreMatchers.notNullValue;
@@ -132,4 +135,40 @@ public void getItem_success3() throws Exception {
         assertThat("item not equal to id ",id,is(equalTo(res.getId())));
 
     }
+
+
+    @Test
+    public void addMultiple_using_explicitCurry_success(){
+
+        //Arrange
+        Function<Integer,Integer> addThree = x-> x+3;
+        Function<Integer,Integer> multiplyFour= x-> x*4;
+        //method one by more imperative
+        Function<Integer, Integer>  addThreeThenMuliplyByFour = x-> multiplyFour.apply(addThree.apply(x));
+        //method two  more declarative 1
+        Function<Integer,Integer> addThreeThenMuliplyByFourComposition =  multiplyFour.compose(addThree);
+        //method three more delcartive 2
+        Function<Integer, Integer> addThreeThenMuliplyByFour_andThen      =    addThree.andThen(multiplyFour);
+
+        //Act
+        int num = 2;
+        int res =
+                //addThreeThenMuliplyByFour.apply(2) ;
+                //addThreeThenMuliplyByFourComposition.apply(2);
+                addThreeThenMuliplyByFour_andThen.apply(num);
+
+        //Assert
+        // 2+3*4=20
+        assertThat(addThreeThenMuliplyByFour.apply(num),
+                   is(equalTo(20)));
+        assertThat(addThreeThenMuliplyByFourComposition.apply(num),
+                   is(equalTo(20)));
+        assertThat(res, is(equalTo(20)));
+
+
+    }
+
+
+
+
 }

Original file line number	Diff line number	Diff line change
`@@ -9,4 +9,4 @@ public class TodooApplication {`
`9`	`9`	`public static void main(String[] args) {`
`10`	`10`	`SpringApplication.run(TodooApplication.class, args);`
`11`	`11`	`}`
`12`		`-}`
	`12`	`+}`