Add missing tests

spring-boot-samples/spring-boot-sample-actuator-ui/src/test/java/sample/actuator/ui/SampleActuatorUiApplicationPortTests.java

@@ -75,7 +75,7 @@ public class SampleActuatorUiApplicationPortTests {
 		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
 				"http://localhost:" + this.managementPort + "/health", String.class);
 		assertEquals(HttpStatus.OK, entity.getStatusCode());
-		assertEquals("ok", entity.getBody());
+		assertEquals("{\"status\":\"ok\"}", entity.getBody());
 	}
 
 }

spring-boot-samples/spring-boot-sample-actuator/src/test/java/sample/actuator/EndpointsPropertiesSampleActuatorApplicationTests.java

@@ -67,6 +67,6 @@ public class EndpointsPropertiesSampleActuatorApplicationTests {
 				"http://localhost:" + this.port + "/admin/health", String.class);
 		assertEquals(HttpStatus.OK, entity.getStatusCode());
 		String body = entity.getBody();
-		assertEquals("ok", body);
+		assertEquals("{\"status\":\"ok\"}", body);
 	}
 }

spring-boot-samples/spring-boot-sample-actuator/src/test/java/sample/actuator/ManagementAddressActuatorApplicationTests.java

@@ -71,7 +71,7 @@ public class ManagementAddressActuatorApplicationTests {
 						"http://localhost:" + this.managementPort + "/admin/health",
 						String.class);
 		assertEquals(HttpStatus.OK, entity.getStatusCode());
-		assertEquals("ok", entity.getBody());
+		assertEquals("{\"status\":\"ok\"}", entity.getBody());
 	}
 
 }

spring-boot-samples/spring-boot-sample-actuator/src/test/java/sample/actuator/ManagementPortSampleActuatorApplicationTests.java

@@ -80,7 +80,7 @@ public class ManagementPortSampleActuatorApplicationTests {
 		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
 				"http://localhost:" + this.managementPort + "/health", String.class);
 		assertEquals(HttpStatus.OK, entity.getStatusCode());
-		assertEquals("ok", entity.getBody());
+		assertEquals("{\"status\":\"ok\"}", entity.getBody());
 	}
 
 	@Test

spring-boot-samples/spring-boot-sample-actuator/src/test/java/sample/actuator/SampleActuatorApplicationTests.java

@@ -130,7 +130,7 @@ public class SampleActuatorApplicationTests {
 		ResponseEntity<String> entity = new TestRestTemplate().getForEntity(
 				"http://localhost:" + this.port + "/health", String.class);
 		assertEquals(HttpStatus.OK, entity.getStatusCode());
-		assertEquals("ok", entity.getBody());
+		assertEquals("{\"status\":\"ok\"}", entity.getBody());
 	}
 
 	@Test