fix:fix discovery junit. (#725)

CHANGELOG.md

@@ -13,3 +13,4 @@
 - [Test: remote deprecated method in test](https://github.com/Tencent/spring-cloud-tencent/pull/706)
 - [docs:update README.](https://github.com/Tencent/spring-cloud-tencent/pull/718)
 - [Code optimization & correct comment](https://github.com/Tencent/spring-cloud-tencent/pull/722)
+- [fix:fix discovery junit.](https://github.com/Tencent/spring-cloud-tencent/pull/725)

spring-cloud-starter-tencent-polaris-discovery/src/test/java/com/tencent/cloud/polaris/discovery/PolarisDiscoveryClientTest.java

@@ -32,6 +32,7 @@ import static com.tencent.polaris.test.common.Consts.SERVICE_PROVIDER;
 import static java.util.Collections.singletonList;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
@@ -63,7 +64,8 @@ public class PolarisDiscoveryClientTest {
 	@Test
 	public void testGetServices() {
 
-		when(polarisServiceDiscovery.getServices()).thenReturn(singletonList(SERVICE_PROVIDER));
+//		when(polarisServiceDiscovery.getServices()).thenReturn(singletonList(SERVICE_PROVIDER));
+		doReturn(singletonList(SERVICE_PROVIDER)).when(polarisServiceDiscovery).getServices();
 
 		List<String> services = client.getServices();