fixed or added SpringContextIntegrationTests for spring cloud submodules:

spring-cloud-functions
spring-cloud-kubernetes/travel-agency-service
spring-cloud-openfeign
spring-cloud-task/springcloudtaskbatch
spring-cloud-vault
spring-cloud-zookeeper/HelloWorld
spring-cloud-zuul

spring-cloud/spring-cloud-functions/src/test/java/com/baeldung/spring/cloudfunction/aws/SpringContextIntegrationTest.java

@@ -0,0 +1,15 @@
+package com.baeldung.spring.cloudfunction.aws;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = CloudFunctionAwsApplication.class)
+public class SpringContextIntegrationTest {
+    
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud/spring-cloud-kubernetes/travel-agency-service/src/test/java/com/baeldung/spring/cloud/kubernetes/travelagency/SpringContextIntegrationTest.java

@@ -0,0 +1,16 @@
+package com.baeldung.spring.cloud.kubernetes.travelagency;
+
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = Application.class)
+public class SpringContextIntegrationTest {
+    
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud/spring-cloud-openfeign/src/test/java/com/baeldung/cloud/openfeign/SpringContextIntegrationTest.java

@@ -0,0 +1,16 @@
+package com.baeldung.cloud.openfeign;
+
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = ExampleApplication.class)
+public class SpringContextIntegrationTest {
+    
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud/spring-cloud-task/springcloudtaskbatch/src/main/resources/application.yml

@@ -3,11 +3,11 @@ logging:
     org:
       springframework:
         cloud:
-          task=DEBUG
+          task: DEBUG
                            
 spring:
   application:
-    name=helloWorld
+    name: helloWorld
   datasource:
     url: jdbc:mysql://localhost:3306/springcloud?useSSL=false
     username: root

spring-cloud/spring-cloud-task/springcloudtaskbatch/src/test/java/org/baeldung/SpringContextIntegrationTest.java

@@ -1,17 +0,0 @@
-package org.baeldung;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.springframework.test.context.ContextConfiguration;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-
-import com.baeldung.task.JobConfiguration;
-
-@RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = JobConfiguration.class)
-public class SpringContextIntegrationTest {
-
-    @Test
-    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
-    }
-}

spring-cloud/spring-cloud-task/springcloudtaskbatch/src/test/java/org/baeldung/SpringContextLiveTest.java

@@ -0,0 +1,29 @@
+package org.baeldung;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.context.ConfigFileApplicationContextInitializer;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import com.baeldung.task.JobConfiguration;
+import com.baeldung.task.TaskDemo;
+
+/**
+ * This Live Test requires:
+ * *  a MySql instance running, that allows a root user with no password, and with a database named 
+ * 
+ * (e.g. with the following command `docker run -p 3306:3306 --name bael-mysql -e MYSQL_ALLOW_EMPTY_PASSWORD=true -e MYSQL_DATABASE=springcloud mysql:latest`)
+ *
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringBootApplication
+@ContextConfiguration(classes = { JobConfiguration.class, TaskDemo.class }, initializers = {
+        ConfigFileApplicationContextInitializer.class })
+public class SpringContextLiveTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud/spring-cloud-vault/src/test/java/org/baeldung/spring/cloud/vaultsample/SpringContextIntegrationTest.java

@@ -0,0 +1,15 @@
+package org.baeldung.spring.cloud.vaultsample;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = VaultSampleApplication.class)
+public class SpringContextIntegrationTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud/spring-cloud-zookeeper/HelloWorld/pom.xml

@@ -34,6 +34,12 @@
                 </exclusion>
             </exclusions>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>${spring-boot.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <dependencyManagement>

spring-cloud/spring-cloud-zookeeper/HelloWorld/src/test/java/com/baeldung/spring/cloud/helloworld/SpringContextIntegrationTest.java

@@ -0,0 +1,16 @@
+package com.baeldung.spring.cloud.helloworld;
+
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = HelloWorldApplication.class)
+public class SpringContextIntegrationTest {
+    
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-cloud/spring-cloud-zuul/src/test/java/com/baeldung/spring/cloud/zuulratelimitdemo/controller/SpringContextIntegrationTest.java

@@ -0,0 +1,17 @@
+package com.baeldung.spring.cloud.zuulratelimitdemo.controller;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.spring.cloud.zuulratelimitdemo.ZuulRatelimitDemoApplication;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = ZuulRatelimitDemoApplication.class)
+public class SpringContextIntegrationTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}