fix oppia#18211: Unexpected error on Exploration Editor page RTE comp…

…onent modal when start time is greater than end time

core/domain/html_cleaner.py

@@ -400,7 +400,7 @@ def validate_rte_tags(
 
         start_value = float(tag['start-with-value'].strip())
         end_value = float(tag['end-with-value'].strip())
-        if start_value > end_value and start_value != 0.0 and end_value != 0.0:
+        if start_value >= end_value and start_value != 0.0 and end_value != 0.0:
             raise utils.ValidationError(
                 'Start value should not be greater than End value in Video tag.'
             )

core/templates/components/ck-editor-helpers/ck-editor-4-widgets.initializer.ts

@@ -43,6 +43,7 @@ export interface RteHelperService {
   isInlineComponent: (string) => boolean;
   openCustomizationModal: (
     componentIsNewlyCreated,
+    componentId,
     customizationArgSpecs,
     attrsCustomizationArgsDict,
     onSubmitCallback,
@@ -79,6 +80,7 @@ export class CkEditorInitializerService {
         var tagName = 'oppia-noninteractive-ckeditor-' + componentDefn.id;
         var customizationArgSpecs = componentDefn.customizationArgSpecs;
         var isInline = rteHelperService.isInlineComponent(componentDefn.id);
+        var componentId = componentDefn.id;
 
         // Inline components will be wrapped in a span, while block components
         // will be wrapped in a div.
@@ -137,6 +139,7 @@ export class CkEditorInitializerService {
 
                 rteHelperService.openCustomizationModal(
                   componentIsNewlyCreated,
+                  componentId,
                   customizationArgSpecs,
                   customizationArgs,
                   function (customizationArgsDict) {

core/templates/services/rte-helper-modal.component.html

@@ -17,10 +17,7 @@ <h3>Customize This Component</h3>
         </div>
       </div>
     </form>
-    <div *ngIf="disableSaveButtonForLinkRte()" class="link-error-message">
-      It seems like clicking on this link will lead the user to a different URL
-      than the text specifies. Please change the text.
-    </div>
+    <div *ngIf="errorMessage" class="error-message">{{ errorMessage }}</div>
   </div>
 
   <div class="modal-footer">
@@ -37,29 +34,13 @@ <h3>Customize This Component</h3>
             Cancel
     </button>
 
-    <button *ngIf="!currentRteIsMathExpressionEditor && !currentRteIsLinkEditor"
-            type="button"
-            class="btn btn-success e2e-test-close-rich-text-component-editor oppia-save-btn"
-            (click)="save()"
-            [disabled]="!customizationArgsForm.valid">
-            Done
-    </button>
-
-    <button *ngIf="currentRteIsLinkEditor"
-            type="button"
+    <button type="button"
             class="btn btn-success e2e-test-close-rich-text-component-editor oppia-save-btn"
             (click)="save()"
-            [disabled]="!customizationArgsForm.valid || disableSaveButtonForLinkRte()">
+            [disabled]="!customizationArgsForm.valid || isErrorMessageNonempty()">
             Done
     </button>
 
-    <button *ngIf="currentRteIsMathExpressionEditor"
-            type="button"
-            class="btn btn-success e2e-test-close-rich-text-component-editor oppia-save-btn"
-            (click)="save()"
-            [disabled]="!customizationArgsForm.valid || disableSaveButtonForMathRte()">
-            Done
-    </button>
   </div>
 </div>
 <style>
@@ -71,7 +52,7 @@ <h3>Customize This Component</h3>
     .oppia-customization-arg-editor-inner {
     margin-top: 15px;
   }
-  .oppia-customization-arg-form-container .link-error-message {
+  .oppia-customization-arg-form-container .error-message {
     color: #f00;
     display: block;
     font-size: 0.8em;

core/templates/services/rte-helper-modal.controller.spec.ts

@@ -108,9 +108,10 @@ describe('RteHelperModalComponent', () => {
     beforeEach(() => {
       fixture = TestBed.createComponent(RteHelperModalComponent);
       component = fixture.componentInstance;
-      component.attrsCustomizationArgsDict = {
-        heading: 'This value is not default.',
-      };
+      (component.componentId = 'video'),
+        (component.attrsCustomizationArgsDict = {
+          heading: 'This value is not default.',
+        });
       component.customizationArgSpecs = customizationArgSpecs;
     });
 
@@ -132,7 +133,10 @@ describe('RteHelperModalComponent', () => {
       spyOn(contextService, 'getEntityType').and.returnValue('exploration');
       component.ngOnInit();
       flush();
-      expect(component.disableSaveButtonForMathRte()).toBe(false);
+      component.onCustomizationArgsFormChange(
+        component.attrsCustomizationArgsDict.heading
+      );
+      expect(component.isErrorMessageNonempty()).toBe(false);
       component.save();
       flush();
       expect(mockExternalRteSaveEventEmitter.emit).toHaveBeenCalled();
@@ -142,6 +146,7 @@ describe('RteHelperModalComponent', () => {
       });
     }));
   });
+
   describe('when there are validation errors in any form control', function () {
     var customizationArgSpecs = [
       {
@@ -175,4 +180,95 @@ describe('RteHelperModalComponent', () => {
       flush();
     }));
   });
+
+  describe('when there are validation errors in link form control', function () {
+    var customizationArgSpecs = [
+      {
+        name: 'url',
+        default_value: 'oppia.org',
+      },
+      {
+        name: 'text',
+        default_value: 'oppia',
+      },
+    ];
+
+    beforeEach(() => {
+      fixture = TestBed.createComponent(RteHelperModalComponent);
+      component = fixture.componentInstance;
+      (component.componentId = 'link'),
+        (component.attrsCustomizationArgsDict = {
+          url: 'oppia.org',
+          text: 'oppia',
+        });
+      component.customizationArgSpecs = customizationArgSpecs;
+    });
+
+    it('should disable save button and display error message', fakeAsync(() => {
+      component.ngOnInit();
+      flush();
+      component.customizationArgsForm.value[0] = 'oppia.org';
+      component.customizationArgsForm.value[1] = 'oppia.com';
+      component.onCustomizationArgsFormChange(
+        component.customizationArgsForm.value
+      );
+      expect(component.isErrorMessageNonempty()).toBe(true);
+      expect(component.errorMessage).toBe(
+        'It seems like clicking on this link will lead the user to a ' +
+          'different URL than the text specifies. Please change the text.'
+      );
+      flush();
+    }));
+  });
+
+  describe('when there are validation errors in video form control', function () {
+    var customizationArgSpecs = [
+      {
+        name: 'video_id',
+        default_value: 'https://www.youtube.com/watch?v=Ntcw0H0hwPU',
+      },
+      {
+        name: 'start',
+        default_value: 0,
+      },
+      {
+        name: 'end',
+        default_value: 0,
+      },
+      {
+        name: 'autoplay',
+        default_value: false,
+      },
+    ];
+
+    beforeEach(() => {
+      fixture = TestBed.createComponent(RteHelperModalComponent);
+      component = fixture.componentInstance;
+      (component.componentId = 'video'),
+        (component.attrsCustomizationArgsDict = {
+          video_id: 'Ntcw0H0hwPU',
+          start: 0,
+          end: 0,
+          autoplay: false,
+        });
+      component.customizationArgSpecs = customizationArgSpecs;
+    });
+
+    it('should disable save button and display error message', fakeAsync(() => {
+      component.ngOnInit();
+      flush();
+
+      component.customizationArgsForm.value[1] = 10;
+      component.customizationArgsForm.value[2] = 0;
+      component.onCustomizationArgsFormChange(
+        component.customizationArgsForm.value
+      );
+      expect(component.isErrorMessageNonempty()).toBe(true);
+      expect(component.errorMessage).toBe(
+        'Please ensure that the start time of the video is earlier than ' +
+          'the end time.'
+      );
+      flush();
+    }));
+  });
 });