Add stream-function tests

spring-cloud-function-stream/pom.xml

@@ -14,10 +14,6 @@
 		<relativePath>..</relativePath>
 	</parent>
 
-	<properties>
-		<stream.version>1.1.1.BUILD-SNAPSHOT</stream.version>
-	</properties>
-
 	<dependencies>
 		<dependency>
 			<groupId>io.projectreactor</groupId>
@@ -31,11 +27,22 @@
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-stream-reactive</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-stream-test-support</artifactId>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-function-core</artifactId>
 			<version>${project.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-function-context</artifactId>
+			<scope>test</scope>
+			<version>${project.version}</version>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-stream-binder-rabbit</artifactId>

spring-cloud-function-stream/src/test/java/org/springframework/cloud/function/stream/consumer/StreamingConsumerTests.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2017 the original author or authors.
+ *
+ * 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 org.springframework.cloud.function.stream.consumer;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.function.Consumer;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.cloud.stream.messaging.Processor;
+import org.springframework.cloud.stream.messaging.Sink;
+import org.springframework.cloud.stream.test.binder.MessageCollector;
+import org.springframework.context.annotation.Bean;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.support.MessageBuilder;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Marius Bogoevici
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = StreamingConsumerTests.StreamingSinkTest.class, properties = {
+		"spring.cloud.stream.bindings.input.destination=data-in",
+		"spring.cloud.function.stream.endpoint=sinkConsumer" })
+public class StreamingConsumerTests {
+
+	@Autowired
+	Sink sink;
+
+	@Autowired
+	List<String> sinkCollector;
+
+	@Test
+	public void test() throws Exception {
+		sink.input().send(MessageBuilder.withPayload("foo").build());
+		assertThat(sinkCollector).containsExactly("foo");
+	}
+
+	@SpringBootApplication
+	public static class StreamingSinkTest {
+
+		@Bean
+		public List<String> sinkCollector() {
+			return new ArrayList<>();
+		}
+
+		@Bean
+		public Consumer<String> sinkConsumer(final List<String> sinkCollector) {
+			return s -> sinkCollector.add(s);
+		}
+	}
+}

spring-cloud-function-stream/src/test/java/org/springframework/cloud/function/stream/function/StreamingFunctionTests.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2017 the original author or authors.
+ *
+ * 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 org.springframework.cloud.function.stream.function;
+
+import java.util.concurrent.TimeUnit;
+import java.util.function.Function;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.cloud.stream.messaging.Processor;
+import org.springframework.cloud.stream.test.binder.MessageCollector;
+import org.springframework.context.annotation.Bean;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.support.MessageBuilder;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Marius Bogoevici
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = StreamingFunctionTests.StreamingFunctionApplication.class, properties = {
+		"spring.cloud.stream.bindings.input.destination=data-in",
+		"spring.cloud.stream.bindings.output.destination=data-out",
+		"spring.cloud.function.stream.endpoint=uppercase" })
+public class StreamingFunctionTests {
+
+	@Autowired
+	Processor processor;
+
+	@Autowired
+	MessageCollector messageCollector;
+
+	@Test
+	public void test() throws Exception {
+		processor.input().send(MessageBuilder.withPayload("foo").build());
+		Message<?> result = messageCollector.forChannel(processor.output()).poll(1000, TimeUnit.MILLISECONDS);
+		assertThat(result.getPayload()).isEqualTo("FOO");
+	}
+
+	@SpringBootApplication
+	public static class StreamingFunctionApplication {
+
+		@Bean
+		public Function<String, String> uppercase() {
+			return s -> s.toUpperCase();
+		}
+	}
+}

spring-cloud-function-stream/src/test/java/org/springframework/cloud/function/stream/supplier/StreamSupplierTests.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright 2017 the original author or authors.
+ *
+ * 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 org.springframework.cloud.function.stream.supplier;
+
+import java.util.concurrent.TimeUnit;
+import java.util.function.Supplier;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.cloud.stream.messaging.Source;
+import org.springframework.cloud.stream.test.binder.MessageCollector;
+import org.springframework.context.annotation.Bean;
+import org.springframework.messaging.Message;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Marius Bogoevici
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = StreamSupplierTests.StreamingFunctionApplication.class, properties = {
+		"spring.cloud.stream.bindings.output.destination=data-out",
+		"spring.cloud.function.stream.endpoint=simpleSupplier" })
+public class StreamSupplierTests {
+
+	@Autowired
+	Source source;
+
+	@Autowired
+	MessageCollector messageCollector;
+
+	@Test
+	public void test() throws Exception {
+		Message<?> result = messageCollector.forChannel(source.output()).poll(1000, TimeUnit.MILLISECONDS);
+		assertThat(result.getPayload()).isEqualTo("foo");
+	}
+
+	@SpringBootApplication
+	public static class StreamingFunctionApplication {
+
+		@Bean
+		public Supplier<String> simpleSupplier() {
+			return () -> "foo";
+		}
+	}
+}