refactor: TT-304 Handle message: Rewriting method and unit tests for …

…that method

src/app/modules/time-entries/pages/time-entries.component.html

@@ -59,7 +59,7 @@
         </tr>
         <app-loading-bar *ngIf="dataSource.isLoading"></app-loading-bar>
         <tbody *ngIf="!dataSource.isLoading">
-          <tr *ngIf="checkIfDataSourceIsLoadingorEmpty(dataSource)">
+          <tr *ngIf="!checkIfDataSourceIsLoadingorEmpty(dataSource)">
             <td class="text-center" colspan="7">{{NO_DATA_MESSAGE}}</td>
           </tr>
           <tr class="d-flex" *ngFor="let entry of dataSource.data">

src/app/modules/time-entries/pages/time-entries.component.spec.ts

@@ -669,23 +669,13 @@ describe('TimeEntriesComponent', () => {
     expect(HTMLTimeEntriesView).not.toBeNull();
   });
 
-  it('checkIfDataSourceIsLoading should be false when dataSource.isLoading is false', () => {
-    expect(component.checkIfDataSourceIsLoadingorEmpty(state.timeEntriesDataSource)).toBeFalse();
-  });
-
-  it('checkIfDataSourceIsLoading should be true when dataSource.isLoading is true', () => {
+  it('checkIfDataSourceIsLoadingorEmpty should be true when dataSource is Loading and data is not empty', () => {
     state.timeEntriesDataSource.isLoading = true;
-
+    state.timeEntriesDataSource.data = [];
     expect(component.checkIfDataSourceIsLoadingorEmpty(state.timeEntriesDataSource)).toBeTrue();
   });
 
-  it('checkIfDataSourceIsEmpty should be false when dataSource.data.length is not empty', () => {
+  it('checkIfDataSourceIsLoadingorEmpty should be false when just dataSource.data.length is empty', () => {
     expect(component.checkIfDataSourceIsLoadingorEmpty(state.timeEntriesDataSource)).toBeFalse();
   });
-
-  it('checkIfDataSourceIsEmpty should be true when dataSource.data.length is empty', () => {
-    state.timeEntriesDataSource.data = [];
-
-    expect(component.checkIfDataSourceIsLoadingorEmpty(state.timeEntriesDataSource)).toBeTrue();
-  });
 });

src/app/modules/time-entries/pages/time-entries.component.ts

@@ -220,7 +220,7 @@ export class TimeEntriesComponent implements OnInit, OnDestroy {
   }
 
   checkIfDataSourceIsLoadingorEmpty(source?: DataSource<Entry>): boolean {
-    if (source.isLoading || source.data.length === 0) {
+    if (source.isLoading && source.data.length === 0) {
       return true;
     }
     return false;