[BAEL-4204] JNA (#10113)

* [BAEL-4203] JNA * [BAEL-4203] JNA
2020-10-01 17:13:15 -03:00
parent 5a8f420807
commit 3dddb550b6
28 changed files with 225 additions and 16 deletions
@@ -0,0 +1,58 @@
+package com.baeldung.jni;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class JNINativeManualTest {
+    
+    @Before
+    public void setup() {
+        System.loadLibrary("native");
+    }
+    
+    @Test
+    public void whenNativeHelloWorld_thenOutputIsAsExpected() {
+        HelloWorldJNI helloWorld = new HelloWorldJNI();
+        String helloFromNative = helloWorld.sayHello();
+        assertTrue(!helloFromNative.isEmpty() && helloFromNative.equals("Hello from C++ !!"));
+    }
+    
+    @Test
+    public void whenSumNative_thenResultIsArithmeticallyCorrect() {
+        ExampleParametersJNI parametersNativeMethods = new ExampleParametersJNI();
+        assertTrue(parametersNativeMethods.sumIntegers(200, 400) == 600L);
+    }
+    
+    @Test
+    public void whenSayingNativeHelloToMe_thenResultIsAsExpected() {
+        ExampleParametersJNI parametersNativeMethods = new ExampleParametersJNI();
+        assertEquals(parametersNativeMethods.sayHelloToMe("Orange", true), "Ms. Orange");
+    }
+
+    @Test
+    public void whenCreatingNativeObject_thenObjectIsNotNullAndHasCorrectData() {
+        String name = "Iker Casillas";
+        double balance = 2378.78;
+        ExampleObjectsJNI objectsNativeMethods = new ExampleObjectsJNI();
+        UserData userFromNative = objectsNativeMethods.createUser(name, balance);
+        assertNotNull(userFromNative);
+        assertEquals(userFromNative.name, name);
+        assertTrue(userFromNative.balance == balance);
+    }
+    
+    @Test
+    public void whenNativeCallingObjectMethod_thenResultIsAsExpected() {
+        String name = "Sergio Ramos";
+        double balance = 666.77;
+        ExampleObjectsJNI objectsNativeMethods = new ExampleObjectsJNI();
+        UserData userData = new UserData();
+        userData.name = name;
+        userData.balance = balance;
+        assertEquals(objectsNativeMethods.printUserData(userData), "[name]=" + name + ", [balance]=" + balance);
+    }
+    
+}