Add external dashboard link

Add settings for linking to external dashboard from
metrics dashboard

2 files changed, 162 insertions, 0 deletions

diff --git a/spec/frontend/operation_settings/components/external_dashboard_spec.js b/spec/frontend/operation_settings/components/external_dashboard_spec.js
new file mode 100644
index 00000000000..de1dd219fe0
--- /dev/null
+++ b/spec/frontend/operation_settings/components/external_dashboard_spec.js
@@ -0,0 +1,100 @@
+import { shallowMount } from '@vue/test-utils';
+import { GlButton, GlLink, GlFormGroup, GlFormInput } from '@gitlab/ui';
+import ExternalDashboard from '~/operation_settings/components/external_dashboard.vue';
+import { TEST_HOST } from 'helpers/test_constants';
+
+describe('operation settings external dashboard component', () => {
+  let wrapper;
+  const externalDashboardPath = `http://mock-external-domain.com/external/dashboard/path`;
+  const externalDashboardHelpPagePath = `${TEST_HOST}/help/page/path`;
+
+  beforeEach(() => {
+    wrapper = shallowMount(ExternalDashboard, {
+      propsData: {
+        externalDashboardPath,
+        externalDashboardHelpPagePath,
+      },
+    });
+  });
+
+  it('renders header text', () => {
+    expect(wrapper.find('.js-section-header').text()).toBe('External Dashboard');
+  });
+
+  describe('sub-header', () => {
+    let subHeader;
+
+    beforeEach(() => {
+      subHeader = wrapper.find('.js-section-sub-header');
+    });
+
+    it('renders descriptive text', () => {
+      expect(subHeader.text()).toContain(
+        'Add a button to the metrics dashboard linking directly to your existing external dashboards.',
+      );
+    });
+
+    it('renders help page link', () => {
+      const link = subHeader.find(GlLink);
+
+      expect(link.text()).toBe('Learn more');
+      expect(link.attributes().href).toBe(externalDashboardHelpPagePath);
+    });
+  });
+
+  describe('form', () => {
+    let form;
+
+    beforeEach(() => {
+      form = wrapper.find('form');
+    });
+
+    describe('external dashboard url', () => {
+      describe('input label', () => {
+        let formGroup;
+
+        beforeEach(() => {
+          formGroup = form.find(GlFormGroup);
+        });
+
+        it('uses label text', () => {
+          expect(formGroup.attributes().label).toBe('Full dashboard URL');
+        });
+
+        it('uses description text', () => {
+          expect(formGroup.attributes().description).toBe(
+            'Enter the URL of the dashboard you want to link to',
+          );
+        });
+      });
+
+      describe('input field', () => {
+        let input;
+
+        beforeEach(() => {
+          input = form.find(GlFormInput);
+        });
+
+        it('defaults to externalDashboardPath prop', () => {
+          expect(input.attributes().value).toBe(externalDashboardPath);
+        });
+
+        it('uses a placeholder', () => {
+          expect(input.attributes().placeholder).toBe('https://my-org.gitlab.io/my-dashboards');
+        });
+      });
+
+      describe('submit button', () => {
+        let submit;
+
+        beforeEach(() => {
+          submit = form.find(GlButton);
+        });
+
+        it('renders button label', () => {
+          expect(submit.text()).toBe('Save Changes');
+        });
+      });
+    });
+  });
+});
diff --git a/spec/javascripts/monitoring/dashboard_spec.js b/spec/javascripts/monitoring/dashboard_spec.js
index 5c28840d3a4..fc722867b0b 100644
--- a/spec/javascripts/monitoring/dashboard_spec.js
+++ b/spec/javascripts/monitoring/dashboard_spec.js
@@ -37,6 +37,9 @@ describe('Dashboard', () => {
     window.gon = {
       ...window.gon,
       ee: false,
+      features: {
+        grafanaDashboardLink: true,
+      },
     };
 
     mock = new MockAdapter(axios);
@@ -323,4 +326,63 @@ describe('Dashboard', () => {
         .catch(done.fail);
     });
   });
+
+  describe('external dashboard link', () => {
+    let component;
+
+    beforeEach(() => {
+      mock.onGet(mockApiEndpoint).reply(200, metricsGroupsAPIResponse);
+    });
+
+    afterEach(() => {
+      component.$destroy();
+    });
+
+    describe('with feature flag enabled', () => {
+      beforeEach(() => {
+        component = new DashboardComponent({
+          el: document.querySelector('.prometheus-graphs'),
+          propsData: {
+            ...propsData,
+            hasMetrics: true,
+            showPanels: false,
+            showTimeWindowDropdown: false,
+            externalDashboardPath: '/mockPath',
+          },
+        });
+      });
+
+      it('shows the link', done => {
+        setTimeout(() => {
+          expect(component.$el.querySelector('.js-external-dashboard-link').innerText).toContain(
+            'View full dashboard',
+          );
+          done();
+        });
+      });
+    });
+
+    describe('without feature flage enabled', () => {
+      beforeEach(() => {
+        window.gon.features.grafanaDashboardLink = false;
+        component = new DashboardComponent({
+          el: document.querySelector('.prometheus-graphs'),
+          propsData: {
+            ...propsData,
+            hasMetrics: true,
+            showPanels: false,
+            showTimeWindowDropdown: false,
+            externalDashboardPath: '',
+          },
+        });
+      });
+
+      it('does not show the link', done => {
+        setTimeout(() => {
+          expect(component.$el.querySelector('.js-external-dashboard-link')).toBe(null);
+          done();
+        });
+      });
+    });
+  });
 });