HONEYCOMB-195: unit test for V3poModule.java

Increases test coverage of v3po plugin to approximately 70%

Change-Id: I8833710c3deb1681e9b7f18e25f9bcacba4a6689
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

3 files changed, 117 insertions, 0 deletions

diff --git a/common/impl-parent/pom.xml b/common/impl-parent/pom.xml
index 0fbd2db77..d3e1bd561 100644
--- a/common/impl-parent/pom.xml
+++ b/common/impl-parent/pom.xml
@@ -85,6 +85,12 @@
         <version>${skinny.logback.version}</version>
         <scope>test</scope>
       </dependency>
+      <dependency>
+        <groupId>com.google.inject.extensions</groupId>
+        <artifactId>guice-testlib</artifactId>
+        <version>${guice.version}</version>
+        <scope>test</scope>
+      </dependency>
     </dependencies>
   </dependencyManagement>
 
diff --git a/v3po/v3po2vpp/pom.xml b/v3po/v3po2vpp/pom.xml
index 80b54a97d..25196d754 100644
--- a/v3po/v3po2vpp/pom.xml
+++ b/v3po/v3po2vpp/pom.xml
@@ -28,6 +28,10 @@
     <version>1.16.12-SNAPSHOT</version>
     <packaging>bundle</packaging>
 
+    <properties>
+        <hamcrest.version>1.3</hamcrest.version>
+    </properties>
+
     <dependencies>
         <dependency>
             <groupId>io.fd.honeycomb</groupId>
@@ -100,5 +104,16 @@
             <artifactId>skinny-logback</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>com.google.inject.extensions</groupId>
+            <artifactId>guice-testlib</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>hamcrest-all</artifactId>
+            <version>${hamcrest.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 </project>
diff --git a/v3po/v3po2vpp/src/test/java/io/fd/honeycomb/translate/v3po/V3poModuleTest.java b/v3po/v3po2vpp/src/test/java/io/fd/honeycomb/translate/v3po/V3poModuleTest.java
new file mode 100644
index 000000000..ac551b13f
--- /dev/null
+++ b/v3po/v3po2vpp/src/test/java/io/fd/honeycomb/translate/v3po/V3poModuleTest.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.fd.honeycomb.translate.v3po;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.Matchers.empty;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThat;
+import static org.mockito.MockitoAnnotations.initMocks;
+
+import com.google.inject.Guice;
+import com.google.inject.Inject;
+import com.google.inject.name.Named;
+import com.google.inject.testing.fieldbinder.Bind;
+import com.google.inject.testing.fieldbinder.BoundFieldModule;
+import io.fd.honeycomb.translate.MappingContext;
+import io.fd.honeycomb.translate.read.ReaderFactory;
+import io.fd.honeycomb.translate.util.read.registry.CompositeReaderRegistryBuilder;
+import io.fd.honeycomb.translate.util.write.registry.FlatWriterRegistryBuilder;
+import io.fd.honeycomb.translate.write.WriterFactory;
+import java.util.HashSet;
+import java.util.Set;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.openvpp.jvpp.core.future.FutureJVppCore;
+
+public class V3poModuleTest {
+
+    @Named("honeycomb-context")
+    @Bind
+    @Mock
+    private MappingContext mappingContext;
+
+    @Named("honeycomb-initializer")
+    @Bind
+    @Mock
+    private DataBroker honeycombInitializer;
+
+    @Named("honeycomb-context")
+    @Bind
+    @Mock
+    private DataBroker honeycombContext;
+
+    @Bind
+    @Mock
+    private FutureJVppCore futureJVppCore;
+
+    @Inject
+    private Set<ReaderFactory> readerFactories = new HashSet<>();
+
+    @Inject
+    private Set<WriterFactory> writerFactories = new HashSet<>();
+
+    @Before
+    public void setUp() {
+        initMocks(this);
+        Guice.createInjector(new V3poModule(), BoundFieldModule.of(this)).injectMembers(this);
+    }
+
+    @Test
+    public void testReaderFactories() throws Exception {
+        assertThat(readerFactories, is(not(empty())));
+
+        // Test registration process (all dependencies present, topological order of readers does exist, etc.)
+        final CompositeReaderRegistryBuilder registryBuilder = new CompositeReaderRegistryBuilder();
+        readerFactories.stream().forEach(factory -> factory.init(registryBuilder));
+        assertNotNull(registryBuilder.build());
+    }
+
+    @Test
+    public void testWriterFactories() throws Exception {
+        assertThat(writerFactories, is(not(empty())));
+
+        // Test registration process (all dependencies present, topological order of writers does exist, etc.)
+        final FlatWriterRegistryBuilder registryBuilder = new FlatWriterRegistryBuilder();
+        writerFactories.stream().forEach(factory -> factory.init(registryBuilder));
+        assertNotNull(registryBuilder.build());
+    }
+}
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