feat: add tests for posting and retrieving datasets display options

dhis-2/dhis-test-web-api/src/test/java/org/hisp/dhis/webapi/controller/DataSetMetadataControllerTest.java

@@ -30,12 +30,16 @@
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.stream.Stream;
+
+import org.hisp.dhis.dataset.DataSet;
 import org.hisp.dhis.jsontree.JsonArray;
 import org.hisp.dhis.jsontree.JsonObject;
+import org.hisp.dhis.jsontree.JsonString;
 import org.hisp.dhis.web.HttpStatus;
 import org.hisp.dhis.web.WebClient;
 import org.hisp.dhis.webapi.DhisControllerIntegrationTest;
 import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
@@ -70,6 +74,42 @@ void getDatasetMetadataDefaultCatComboTest(
     assertEquals(expectedDefaultCatComboCount, count, defaultCatComboCondition);
   }
 
+  @Test
+  @DisplayName(
+          "Dataset display options are correctly saved and retrieved")
+  void getDatasetMetadataDisplayOptionsTest() {
+    String expectedDisplayOptions = "{\"aDisplay\": \"option\"}";
+    String dataSetsBody = """
+            {
+              "dataSets": [
+                {
+                  "name": "hellobrenda",
+                  "shortName": "hellobrenda",
+                  "periodType": "Daily",
+                  "displayOptions": "{\\"aDisplay\\": \\"option\\"}"
+                }
+              ]
+            }
+            """;
+
+
+    // given
+    POST("/metadata", WebClient.Body(dataSetsBody)).content(HttpStatus.OK);
+
+    // when the data entry metadata is retrieves
+    JsonObject dataEntryMetadata = GET("/dataEntry/metadata").content();
+    JsonArray dataSets = dataEntryMetadata.getArray("dataSets");
+    String actualDisplayOptions = dataSets
+            .getObject(0)
+            .getString("displayOptions")
+            .string();
+
+    // then
+    assertEquals(1, dataSets.size());
+    assertEquals(expectedDisplayOptions, actualDisplayOptions);
+
+  }
+
   private static Stream<Arguments> defaultCatComboData() {
     return Stream.of(
         Arguments.of(