#27 - Tests for - No injection of dependencies when using withSpy() and field injection

Author: rbygrave

src/test/java/org/example/coffee/fruit/AppleService.java

@@ -0,0 +1,25 @@
+package org.example.coffee.fruit;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+@Singleton
+class AppleService {
+
+  @Inject
+  BananaService bananaService;
+
+  @Inject
+  PeachService peachService;
+
+  String ban() {
+    return bananaService.ban("hello");
+  }
+
+
+  void apple(String a, String b, String c) {
+    System.out.println("apple> a: " + a + " b:" + b + " c:" + c);
+    bananaService.banana(a, b, c);
+    peachService.peach(a, b, c);
+  }
+}

src/test/java/org/example/coffee/fruit/AppleServiceTest.java

@@ -0,0 +1,53 @@
+package org.example.coffee.fruit;
+
+import io.dinject.BeanContext;
+import io.dinject.BootContext;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.doNothing;
+
+public class AppleServiceTest {
+
+  @Test
+  public void test_spyWithFieldInjection() {
+
+    BootContext bootContext = new BootContext();
+    bootContext.withSpy(AppleService.class);
+
+    try (BeanContext beanContext = bootContext.load()) {
+
+      AppleService appleService = beanContext.getBean(AppleService.class);
+
+      doNothing()
+        .when(appleService)
+        .apple(anyString(), anyString(), anyString());
+
+      assertThat(appleService.bananaService).isNotNull();
+      assertThat(appleService.peachService).isNotNull();
+
+      appleService.apple("one", "two", "three");
+
+      String out = appleService.ban();
+      assertThat(out).isEqualTo("hello banana peach");
+    }
+  }
+
+  @Test
+  public void test_whenNoMockOrSpy() {
+
+    BootContext bootContext = new BootContext();
+
+    try (BeanContext beanContext = bootContext.load()) {
+
+      AppleService appleService = beanContext.getBean(AppleService.class);
+
+      assertThat(appleService.bananaService).isNotNull();
+      assertThat(appleService.peachService).isNotNull();
+
+      appleService.apple("one", "two", "three");
+    }
+  }
+
+}

src/test/java/org/example/coffee/fruit/BananaService.java

@@ -0,0 +1,20 @@
+package org.example.coffee.fruit;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+@Singleton
+class BananaService {
+
+  @Inject
+  PeachService peachService;
+
+  String banana(String a, String b, String c) {
+    System.out.println("banana> a: " + a + " b:" + b + " c:" + c);
+    return " banana " + peachService.poke();
+  }
+
+  String ban(String hello) {
+    return hello+" banana "+peachService.poke();
+  }
+}

src/test/java/org/example/coffee/fruit/PeachService.java

@@ -0,0 +1,16 @@
+package org.example.coffee.fruit;
+
+import javax.inject.Singleton;
+
+@Singleton
+class PeachService {
+
+  String poke() {
+    return "peach";
+  }
+
+  String peach(String a, String b, String c) {
+    System.out.println("peach> a: " + a + " b:" + b + " c:" + c);
+    return " peach";
+  }
+}

src/test/java/org/example/coffee/grind/Grinder.java

@@ -1,11 +1,20 @@
 package org.example.coffee.grind;
 
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
 import lombok.extern.slf4j.Slf4j;
 
 import javax.annotation.PostConstruct;
 import javax.inject.Inject;
 import javax.inject.Singleton;
 
+
+@EqualsAndHashCode
+@ToString
+@Getter
+@Setter
 @Slf4j
 @Singleton
 public class Grinder {