Merge remote-tracking branch 'origin/2.2.x'

spring-cloud-openfeign-core/src/test/java/org/springframework/cloud/openfeign/beans/FeignClientMockBeanTests.java

@@ -0,0 +1,66 @@
+package org.springframework.cloud.openfeign.beans;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.bind.annotation.GetMapping;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.when;
+
+/**
+ * @author Olga Maciaszek-Sharma
+ */
+@SpringBootTest(classes = FeignClientMockBeanTests.Config.class)
+public class FeignClientMockBeanTests {
+
+	@MockBean
+	private RandomClient randomClient;
+
+	@Autowired
+	private TestService testService;
+
+	@Test
+	public void randomClientShouldBeMocked() {
+		String mockMessage = "Mocked Feign Client";
+		when(randomClient.getRandomString()).thenReturn(mockMessage);
+
+		String returnedMessage = testService.testMethod();
+
+		assertThat(returnedMessage).isEqualTo(mockMessage);
+	}
+
+	@FeignClient(value = "random-test")
+	protected interface RandomClient {
+
+		@GetMapping(value = "/random-test")
+		String getRandomString();
+
+	}
+
+	@Configuration
+	protected static class Config {
+
+		@Bean
+		TestService testService() {
+			return new TestService();
+		}
+
+	}
+
+}
+
+class TestService {
+
+	@Autowired
+	private FeignClientMockBeanTests.RandomClient randomClient;
+
+	public String testMethod() {
+		return randomClient.getRandomString();
+	}
+}