OZG-4814 Reverted back to MockMvc in MongoConfigServerITCase

src/test/java/de/ozgcloud/admin/environment/MongoConfigServerITCase.java

 
 package de.ozgcloud.admin.environment;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
 
 import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
-import org.springframework.boot.test.web.client.TestRestTemplate;
-import org.springframework.boot.test.web.server.LocalServerPort;
-import org.springframework.cloud.config.environment.Environment;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.ResponseEntity;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.test.web.servlet.MockMvc;
 
 import de.ozgcloud.common.test.ITCase;
 
-@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
 @ITCase
+@AutoConfigureMockMvc
 class MongoConfigServerITCase {
-	@LocalServerPort
-	private int port;
+	@Autowired
+	private MockMvc mockMvc;
 
 	@Test
 	void shouldHaveHttpEndpoint() throws Exception {
-		ResponseEntity<Environment> response = new TestRestTemplate().getForEntity("http://localhost:"
-				+ port + "/" + MongoPropertySourceTestFactory.APPNAME + "/" + MongoPropertySourceTestFactory.PROFILE, Environment.class);
+		var result = mockMvc.perform(get("/" + MongoPropertySourceTestFactory.APPNAME + "/" + MongoPropertySourceTestFactory.PROFILE));
 
-		assertEquals(HttpStatus.OK, response.getStatusCode());
+		result.andExpect(status().isOk());
 	}
 }
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