Replace isVueInstance due to deprecation

isVueInstance is deprecated in `@vue/test-utils` 1.x
Replacing it with better options

ee/spec/frontend/dast_site_profiles_form/components/dast_site_profiles_form_spec.js

@@ -66,7 +66,7 @@ describe('OnDemandScansApp', () => {
 
   it('renders properly', () => {
     createComponent();
-    expect(wrapper.isVueInstance()).toBe(true);
+    expect(wrapper.html()).not.toBe('');
   });
 
   describe('submit button', () => {

ee/spec/frontend/on_demand_scans/components/on_demand_scans_form_spec.js

@@ -82,7 +82,7 @@ describe('OnDemandScansApp', () => {
   });
 
   it('renders properly', () => {
-    expect(wrapper.isVueInstance()).toBe(true);
+    expect(wrapper.html()).not.toBe('');
   });
 
   describe('computed props', () => {

spec/frontend/logs/components/environment_logs_spec.js

@@ -121,7 +121,7 @@ describe('EnvironmentLogs', () => {
   it('displays UI elements', () => {
     initWrapper();
 
-    expect(wrapper.isVueInstance()).toBe(true);
+    expect(wrapper.isEmpty()).toBe(false);
 
     expect(findEnvironmentsDropdown().is(GlDeprecatedDropdown)).toBe(true);
     expect(findSimpleFilters().exists()).toBe(true);

spec/frontend/logs/components/log_advanced_filters_spec.js

@@ -68,7 +68,7 @@ describe('LogAdvancedFilters', () => {
   it('displays UI elements', () => {
     initWrapper();
 
-    expect(wrapper.isVueInstance()).toBe(true);
+    expect(wrapper.isEmpty()).toBe(false);
 
     expect(findFilteredSearch().exists()).toBe(true);
     expect(findTimeRangePicker().exists()).toBe(true);

spec/frontend/logs/components/log_control_buttons_spec.js

@@ -28,7 +28,7 @@ describe('LogControlButtons', () => {
   it('displays UI elements', () => {
     initWrapper();
 
-    expect(wrapper.isVueInstance()).toBe(true);
+    expect(wrapper.isEmpty()).toBe(false);
 
     expect(findScrollToTop().is(GlButton)).toBe(true);
     expect(findScrollToBottom().is(GlButton)).toBe(true);

spec/frontend/logs/components/log_simple_filters_spec.js

@@ -59,7 +59,7 @@ describe('LogSimpleFilters', () => {
   it('displays UI elements', () => {
     initWrapper();
 
-    expect(wrapper.isVueInstance()).toBe(true);
+    expect(wrapper.isEmpty()).toBe(false);
 
     expect(findPodsDropdown().exists()).toBe(true);
   });

spec/frontend/monitoring/components/charts/anomaly_spec.js

@@ -46,9 +46,8 @@ describe('Anomaly chart component', () => {
       });
     });
 
-    it('is a Vue instance', () => {
+    it('renders correctly', () => {
       expect(findTimeSeries().exists()).toBe(true);
-      expect(findTimeSeries().isVueInstance()).toBe(true);
     });
 
     describe('receives props correctly', () => {

spec/frontend/monitoring/components/charts/bar_spec.js

@@ -37,10 +37,6 @@ describe('Bar component', () => {
         chartData = barChart.vm.chartData[graphData.metrics[0].label];
       });
 
-      it('is a Vue instance', () => {
-        expect(glbarChart.isVueInstance()).toBe(true);
-      });
-
       it('should display a label on the x axis', () => {
         expect(glbarChart.props('xAxisTitle')).toBe(graphData.xLabel);
       });

spec/frontend/monitoring/components/charts/column_spec.js

@@ -95,10 +95,6 @@ describe('Column component', () => {
 
   describe('wrapped components', () => {
     describe('GitLab UI column chart', () => {
-      it('is a Vue instance', () => {
-        expect(findChart().isVueInstance()).toBe(true);
-      });
-
       it('receives data properties needed for proper chart render', () => {
         expect(chartProps('data').values).toEqual(dataValues);
       });

spec/frontend/monitoring/components/charts/heatmap_spec.js

@@ -24,21 +24,14 @@ describe('Heatmap component', () => {
   };
 
   describe('wrapped chart', () => {
-    let glHeatmapChart;
-
     beforeEach(() => {
       createWrapper();
-      glHeatmapChart = findChart();
     });
 
     afterEach(() => {
       wrapper.destroy();
     });
 
-    it('is a Vue instance', () => {
-      expect(glHeatmapChart.isVueInstance()).toBe(true);
-    });
-
     it('should display a label on the x axis', () => {
       expect(wrapper.vm.xAxisName).toBe(graphData.xLabel);
     });

spec/frontend/monitoring/components/charts/time_series_spec.js

@@ -632,9 +632,8 @@ describe('Time series component', () => {
             return wrapper.vm.$nextTick();
           });
 
-          it('is a Vue instance', () => {
+          it('exists', () => {
             expect(findChartComponent().exists()).toBe(true);
-            expect(findChartComponent().isVueInstance()).toBe(true);
           });
 
           it('receives data properties needed for proper chart render', () => {

spec/frontend/monitoring/components/dashboard_panel_spec.js

@@ -141,7 +141,6 @@ describe('Dashboard Panel', () => {
 
     it('The Empty Chart component is rendered and is a Vue instance', () => {
       expect(wrapper.find(MonitorEmptyChart).exists()).toBe(true);
-      expect(wrapper.find(MonitorEmptyChart).isVueInstance()).toBe(true);
     });
   });
 
@@ -170,7 +169,6 @@ describe('Dashboard Panel', () => {
 
     it('The Empty Chart component is rendered and is a Vue instance', () => {
       expect(wrapper.find(MonitorEmptyChart).exists()).toBe(true);
-      expect(wrapper.find(MonitorEmptyChart).isVueInstance()).toBe(true);
     });
   });
 
@@ -226,13 +224,11 @@ describe('Dashboard Panel', () => {
       it('empty chart is rendered for empty results', () => {
         createWrapper({ graphData: graphDataEmpty });
         expect(wrapper.find(MonitorEmptyChart).exists()).toBe(true);
-        expect(wrapper.find(MonitorEmptyChart).isVueInstance()).toBe(true);
       });
 
       it('area chart is rendered by default', () => {
         createWrapper();
         expect(wrapper.find(MonitorTimeSeriesChart).exists()).toBe(true);
-        expect(wrapper.find(MonitorTimeSeriesChart).isVueInstance()).toBe(true);
       });
 
       describe.each`
@@ -254,7 +250,6 @@ describe('Dashboard Panel', () => {
 
         it(`renders the chart component and binds attributes`, () => {
           expect(wrapper.find(component).exists()).toBe(true);
-          expect(wrapper.find(component).isVueInstance()).toBe(true);
           expect(wrapper.find(component).attributes()).toMatchObject(attrs);
         });
 
@@ -548,7 +543,6 @@ describe('Dashboard Panel', () => {
     });
 
     it('it renders a time series chart with no errors', () => {
-      expect(wrapper.find(MonitorTimeSeriesChart).isVueInstance()).toBe(true);
       expect(wrapper.find(MonitorTimeSeriesChart).exists()).toBe(true);
     });
   });

spec/frontend/monitoring/components/dashboard_spec.js

@@ -707,8 +707,7 @@ describe('Dashboard', () => {
     });
 
     it('renders correctly', () => {
-      expect(wrapper.isVueInstance()).toBe(true);
-      expect(wrapper.exists()).toBe(true);
+      expect(wrapper.html()).not.toBe('');
     });
   });
 

spec/frontend/pipelines/components/pipelines_filtered_search_spec.js

@@ -47,7 +47,7 @@ describe('Pipelines filtered search', () => {
   });
 
   it('displays UI elements', () => {
-    expect(wrapper.isVueInstance()).toBe(true);
+    expect(wrapper.isEmpty()).toBe(false);
 
     expect(findFilteredSearch().exists()).toBe(true);
   });

spec/frontend/vue_shared/components/user_avatar/user_avatar_link_spec.js

@@ -38,10 +38,6 @@ describe('User Avatar Link Component', () => {
     wrapper = null;
   });
 
-  it('should return a defined Vue component', () => {
-    expect(wrapper.isVueInstance()).toBe(true);
-  });
-
   it('should have user-avatar-image registered as child component', () => {
     expect(wrapper.vm.$options.components.userAvatarImage).toBeDefined();
   });