diff --git a/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-details.component.spec.ts b/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-details.component.spec.ts
index d18a719465..85c45d4392 100644
--- a/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-details.component.spec.ts
+++ b/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-details.component.spec.ts
@@ -72,12 +72,6 @@ describe('ActivitiProcessInstanceDetails', () => {
         window['componentHandler'] = componentHandler;
     });
 
-    it('should load task details when processInstanceId specified', () => {
-        component.processInstanceId = '123';
-        fixture.detectChanges();
-        expect(getProcessSpy).toHaveBeenCalled();
-    });
-
     it('should not load task details when no processInstanceId is specified', () => {
         fixture.detectChanges();
         expect(getProcessSpy).not.toHaveBeenCalled();
@@ -89,8 +83,8 @@ describe('ActivitiProcessInstanceDetails', () => {
     });
 
     it('should display a header when the processInstanceId is provided', async(() => {
-        component.processInstanceId = '123';
         fixture.detectChanges();
+        component.ngOnChanges({ 'processInstanceId': new SimpleChange(null, '123') });
         fixture.whenStable().then(() => {
             fixture.detectChanges();
             let headerEl: DebugElement = fixture.debugElement.query(By.css('h2'));
@@ -118,11 +112,6 @@ describe('ActivitiProcessInstanceDetails', () => {
             expect(getProcessSpy).toHaveBeenCalledWith('456');
         });
 
-        it('should reload tasks list when processInstanceId changed', () => {
-            component.ngOnChanges({ 'processInstanceId': change });
-            expect(component.tasksList.load).toHaveBeenCalled();
-        });
-
         it('should NOT fetch new process details when empty changeset made', () => {
             component.ngOnChanges({});
             expect(getProcessSpy).not.toHaveBeenCalled();
diff --git a/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-tasks.component.spec.ts b/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-tasks.component.spec.ts
index 8670f9bcba..bb80c1da69 100644
--- a/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-tasks.component.spec.ts
+++ b/ng2-components/ng2-activiti-processlist/src/components/activiti-process-instance-tasks.component.spec.ts
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-import { DebugElement, NO_ERRORS_SCHEMA } from '@angular/core';
+import { DebugElement, NO_ERRORS_SCHEMA, SimpleChange } from '@angular/core';
 import { ComponentFixture, TestBed, async } from '@angular/core/testing';
 import { By } from '@angular/platform-browser';
 import { Observable } from 'rxjs/Rx';
@@ -52,7 +52,7 @@ describe('ActivitiProcessInstanceTasks', () => {
                 { provide: AlfrescoTranslationService, useClass: TranslationMock },
                 ActivitiProcessService
             ],
-            schemas: [ NO_ERRORS_SCHEMA ]
+            schemas: [NO_ERRORS_SCHEMA]
         }).compileComponents();
     }));
 
@@ -103,16 +103,13 @@ describe('ActivitiProcessInstanceTasks', () => {
         expect(listEl).toBeNull();
     });
 
-    it('should call service to get tasks on init', () => {
-        component.processInstanceDetails = exampleProcessInstance;
-        fixture.detectChanges();
-        expect(getProcessTasksSpy).toHaveBeenCalled();
-    });
-
     it('should display active tasks', () => {
-        component.processInstanceDetails = exampleProcessInstance;
+        let change = new SimpleChange(null, exampleProcessInstance);
         fixture.detectChanges();
+        component.ngOnChanges({ 'processInstanceDetails': change });
         fixture.whenStable().then(() => {
+            fixture.detectChanges();
+            component.ngOnChanges({ 'processInstanceDetails': change });
             let listEl = fixture.debugElement.query(By.css('[data-automation-id="active-tasks"]'));
             expect(listEl).not.toBeNull();
             expect(listEl.queryAll(By.css('li')).length).toBe(1);
@@ -120,9 +117,11 @@ describe('ActivitiProcessInstanceTasks', () => {
     });
 
     it('should display completed tasks', () => {
-        component.processInstanceDetails = exampleProcessInstance;
+        let change = new SimpleChange(null, exampleProcessInstance);
         fixture.detectChanges();
+        component.ngOnChanges({ 'processInstanceDetails': change });
         fixture.whenStable().then(() => {
+            fixture.detectChanges();
             let listEl = fixture.debugElement.query(By.css('[data-automation-id="completed-tasks"]'));
             expect(listEl).not.toBeNull();
             expect(listEl.queryAll(By.css('li')).length).toBe(1);