add adapters as child module

spring-cloud-function-adapters/spring-cloud-function-adapter-aws/src/test/java/org/springframework/cloud/function/adapter/aws/SpringFunctionInitializerTests.java

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+/*
+ * Copyright 2016-2017 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.adapter.aws;
+
+import java.util.function.Consumer;
+import java.util.function.Function;
+import java.util.function.Supplier;
+import java.util.stream.Collectors;
+
+import org.junit.After;
+import org.junit.Test;
+
+import org.springframework.cloud.function.context.ContextFunctionCatalogAutoConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import reactor.core.publisher.Flux;
+
+/**
+ * @author Dave Syer
+ *
+ */
+public class SpringFunctionInitializerTests {
+	
+	private SpringFunctionInitializer initializer;
+
+	@After
+	public void after() {
+		System.clearProperty("function.name");
+		if (initializer!=null) {
+			initializer.close();
+		}
+	}
+
+	@Test
+	public void functionBean() {
+		initializer = new SpringFunctionInitializer(
+				FluxFunctionConfig.class);
+		initializer.initialize();
+		Flux<?> result = initializer.apply(Flux.just(new Foo()));
+		assertThat(result.blockFirst()).isInstanceOf(Bar.class);
+	}
+
+	@Test
+	public void functionCatalog() {
+		initializer = new SpringFunctionInitializer(
+				FunctionConfig.class);
+		initializer.initialize();
+		Flux<?> result = initializer.apply(Flux.just(new Foo()));
+		assertThat(result.blockFirst()).isInstanceOf(Bar.class);
+	}
+
+	@Test
+	public void namedFunctionCatalog() {
+		initializer = new SpringFunctionInitializer(
+				NamedFunctionConfig.class);
+		System.setProperty("function.name", "other");
+		initializer.initialize();
+		Flux<?> result = initializer.apply(Flux.just(new Foo()));
+		assertThat(result.blockFirst()).isInstanceOf(Bar.class);
+	}
+
+	@Test
+	public void consumerCatalog() {
+		initializer = new SpringFunctionInitializer(
+				ConsumerConfig.class);
+		initializer.initialize();
+		Flux<?> result = initializer.apply(Flux.just(new Foo()));
+		assertThat(result.toStream().collect(Collectors.toList())).isEmpty();
+	}
+
+	@Test
+	public void supplierCatalog() {
+		initializer = new SpringFunctionInitializer(
+				SupplierConfig.class);
+		initializer.initialize();
+		Flux<?> result = initializer.apply(Flux.empty());
+		assertThat(result.blockFirst()).isInstanceOf(Bar.class);
+	}
+
+	@Configuration
+	protected static class FluxFunctionConfig {
+		@Bean
+		public Function<Flux<Foo>, Flux<Bar>> function() {
+			return flux -> flux.map(foo -> new Bar());
+		}
+	}
+
+	@Configuration
+	@Import(ContextFunctionCatalogAutoConfiguration.class)
+	protected static class FunctionConfig {
+		@Bean
+		public Function<Foo, Bar> function() {
+			return foo -> new Bar();
+		}
+	}
+
+	@Configuration
+	@Import(ContextFunctionCatalogAutoConfiguration.class)
+	protected static class NamedFunctionConfig {
+		@Bean
+		public Function<Foo, Bar> other() {
+			return foo -> new Bar();
+		}
+	}
+
+	@Configuration
+	@Import(ContextFunctionCatalogAutoConfiguration.class)
+	protected static class SupplierConfig {
+		@Bean
+		public Supplier<Bar> supplier() {
+			return () -> new Bar();
+		}
+	}
+
+	@Configuration
+	@Import(ContextFunctionCatalogAutoConfiguration.class)
+	protected static class ConsumerConfig {
+		@Bean
+		public Consumer<Foo> consumer() {
+			return foo -> {
+			};
+		}
+	}
+
+	protected static class Foo {
+	}
+
+	protected static class Bar {
+	}
+}