Add flux sample for tests

spring-cloud-function-deployer/src/test/java/org/springframework/cloud/function/deployer/SpringFunctionFluxConfigurationTests.java

@@ -0,0 +1,101 @@
+/*
+ * 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.deployer;
+
+import java.util.function.Function;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import org.springframework.boot.SpringBootConfiguration;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.cloud.function.context.FunctionCatalog;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import reactor.core.publisher.Flux;
+
+@SpringBootConfiguration
+@EnableAutoConfiguration
+@EnableFunctionDeployer
+public class SpringFunctionFluxConfigurationTests {
+
+	private Object catalog;
+
+	private ApplicationBootstrap bootstrap;
+
+	@Before
+	public void run() {
+		if (bootstrap == null) {
+			bootstrap = new ApplicationBootstrap();
+			bootstrap.run(SpringFunctionFluxConfigurationTests.class,
+					"--function.location=file:target/it/flux/target/dependency",
+					"--function.bean=foos",
+					"--function.main=com.example.functions.FunctionApp");
+			catalog = bootstrap.getRunner().getBean(FunctionCatalog.class.getName());
+		}
+	}
+
+	@After
+	public void close() {
+		if (bootstrap != null) {
+			bootstrap.close();
+		}
+	}
+
+	// @TestPropertySource(properties = { "",
+	// "function.main=com.example.functions.FunctionApp" })
+	// public static class SourceTests extends SpringFunctionFluxConfigurationTests {
+
+	@Test
+	public void test() throws Exception {
+		@SuppressWarnings("unchecked")
+		Function<Flux<Foo>, Flux<Foo>> function = (Function<Flux<Foo>, Flux<Foo>>) bootstrap
+				.getRunner()
+				.evaluate("lookup(T(java.util.function.Function), 'function0')", catalog);
+		assertThat(function.apply(Flux.just(new Foo("foo"))).blockFirst().getValue())
+				.isEqualTo("FOO");
+	}
+
+}
+
+class Foo {
+
+	private String value;
+
+	public Foo() {
+	}
+
+	public Foo(String value) {
+		this.value = value;
+	}
+
+	public String getValue() {
+		return this.value;
+	}
+
+	public void setValue(String value) {
+		this.value = value;
+	}
+
+	@Override
+	public String toString() {
+		return "Foo [value=" + this.value + "]";
+	}
+
+}