#30 Added an integration test for custom protoc plugins

src/it/TEST-28/invoker.properties

@@ -0,0 +1,6 @@
+# An optional description for this build job to be included in the build reports.
+invoker.description = Verifies that a binary artifact for a protoc plugin can be downloaded from Maven repository.
+
+# A comma or space separated list of goals/phases to execute, may
+# specify an empty list to execute the default goal of the IT project
+invoker.goals = clean package

src/it/TEST-28/pom.xml

@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.google.protobuf.tools.maven-protoc-plugin.its</groupId>
+        <artifactId>it-parent</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>TEST-28</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <name>Integration Test 28</name>
+
+    <properties>
+        <protobufVersion>3.0.0-alpha-3</protobufVersion>
+        <grpcVersion>0.7.2</grpcVersion>
+    </properties>
+
+    <build>
+        <extensions>
+            <extension>
+                <groupId>kr.motd.maven</groupId>
+                <artifactId>os-maven-plugin</artifactId>
+                <version>1.3.0.Final</version>
+            </extension>
+        </extensions>
+
+        <plugins>
+            <plugin>
+                <groupId>com.google.protobuf.tools</groupId>
+                <artifactId>maven-protoc-plugin</artifactId>
+                <version>@project.version@</version>
+                <executions>
+                    <execution>
+                        <id>protoc-compile</id>
+                        <phase>generate-sources</phase>
+                        <goals>
+                            <goal>compile</goal>
+                            <goal>compile-custom</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>protoc-test-compile</id>
+                        <phase>generate-test-sources</phase>
+                        <goals>
+                            <goal>test-compile</goal>
+                            <goal>test-compile-custom</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <protocArtifact>com.google.protobuf:protoc:${protobufVersion}:exe:${os.detected.classifier}
+                    </protocArtifact>
+                    <pluginId>grpc</pluginId>
+                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:${grpcVersion}:exe:${os.detected.classifier}
+                    </pluginArtifact>
+                    <pluginParameter>nano=false</pluginParameter>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.grpc</groupId>
+            <artifactId>grpc-all</artifactId>
+            <version>${grpcVersion}</version>
+        </dependency>
+    </dependencies>
+</project>

src/it/TEST-28/src/main/proto/test.proto

@@ -0,0 +1,25 @@
+syntax = "proto3";
+
+option java_package = "test";
+option java_outer_classname = "TestProtos";
+option optimize_for = SPEED;
+
+message TestMessage {
+  message NestedMessage {
+    int32 zz = 1;
+  }
+
+  enum NestedEnum {
+    FOO = 0;
+    BAR = 1;
+    BAZ = 2;
+  }
+
+  // Singular
+  int32 xx = 1;
+  repeated NestedEnum yy = 2;
+}
+
+service MyService {
+  rpc MyMethod(TestMessage) returns(TestMessage) {}
+}

src/it/TEST-28/verify.groovy

@@ -0,0 +1,28 @@
+outputDirectory = new File(basedir, 'target/generated-sources/protobuf/java');
+assert outputDirectory.exists();
+assert outputDirectory.isDirectory();
+
+generatedJavaFile = new File(outputDirectory, 'test/TestProtos.java');
+assert generatedJavaFile.exists();
+assert generatedJavaFile.isFile();
+
+content = generatedJavaFile.text;
+assert content.contains('package test');
+assert content.contains('class TestProtos');
+assert content.contains('class TestMessage');
+
+outputDirectory = new File(basedir, 'target/generated-sources/protobuf/grpc');
+assert outputDirectory.exists();
+assert outputDirectory.isDirectory();
+
+generatedJavaFile = new File(outputDirectory, 'test/MyServiceGrpc.java');
+assert generatedJavaFile.exists();
+assert generatedJavaFile.isFile();
+
+content = generatedJavaFile.text;
+assert content.contains('package test');
+assert content.contains('class MyServiceGrpc');
+assert content.contains('interface MyService');
+
+
+return true;