1 files changed, 37 insertions, 0 deletions
diff --git a/spec/frontend/behaviors/markdown/render_metrics_spec.js b/spec/frontend/behaviors/markdown/render_metrics_spec.js
new file mode 100644
index 00000000000..6db0eabc16b
--- /dev/null
+++ b/spec/frontend/behaviors/markdown/render_metrics_spec.js
@@ -0,0 +1,37 @@
+import Vue from 'vue';
+import renderMetrics from '~/behaviors/markdown/render_metrics';
+import { TEST_HOST } from 'helpers/test_constants';
+
+const originalExtend = Vue.extend;
+
+describe('Render metrics for Gitlab Flavoured Markdown', () => {
+  const container = {
+    Metrics() {},
+  };
+
+  let spyExtend;
+
+  beforeEach(() => {
+    Vue.extend = () => container.Metrics;
+    spyExtend = jest.spyOn(Vue, 'extend');
+  });
+
+  afterEach(() => {
+    Vue.extend = originalExtend;
+  });
+
+  it('does nothing when no elements are found', () => {
+    renderMetrics([]);
+
+    expect(spyExtend).not.toHaveBeenCalled();
+  });
+
+  it('renders a vue component when elements are found', () => {
+    const element = document.createElement('div');
+    element.setAttribute('data-dashboard-url', TEST_HOST);
+
+    renderMetrics([element]);
+
+    expect(spyExtend).toHaveBeenCalled();
+  });
+});