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diff --git a/spec/frontend/diffs/components/diff_code_quality_item_spec.js b/spec/frontend/diffs/components/diff_code_quality_item_spec.js
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+++ b/spec/frontend/diffs/components/diff_code_quality_item_spec.js
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+import { GlIcon, GlLink } from '@gitlab/ui';
+import { shallowMountExtended } from 'helpers/vue_test_utils_helper';
+import DiffCodeQualityItem from '~/diffs/components/diff_code_quality_item.vue';
+import { SEVERITY_CLASSES, SEVERITY_ICONS } from '~/ci/reports/codequality_report/constants';
+import { multipleFindingsArr } from '../mock_data/diff_code_quality';
+
+let wrapper;
+
+const findIcon = () => wrapper.findComponent(GlIcon);
+const findButton = () => wrapper.findComponent(GlLink);
+const findDescriptionPlainText = () => wrapper.findByTestId('description-plain-text');
+const findDescriptionLinkSection = () => wrapper.findByTestId('description-button-section');
+
+describe('DiffCodeQuality', () => {
+  const createWrapper = ({ glFeatures = {} } = {}) => {
+    return shallowMountExtended(DiffCodeQualityItem, {
+      propsData: {
+        finding: multipleFindingsArr[0],
+      },
+      provide: {
+        glFeatures,
+      },
+    });
+  };
+
+  it('shows icon for given degradation', () => {
+    wrapper = createWrapper();
+    expect(findIcon().exists()).toBe(true);
+
+    expect(findIcon().attributes()).toMatchObject({
+      class: `codequality-severity-icon ${SEVERITY_CLASSES[multipleFindingsArr[0].severity]}`,
+      name: SEVERITY_ICONS[multipleFindingsArr[0].severity],
+      size: '12',
+    });
+  });
+
+  describe('with codeQualityInlineDrawer flag false', () => {
+    it('should render severity + description in plain text', () => {
+      wrapper = createWrapper({
+        glFeatures: {
+          codeQualityInlineDrawer: false,
+        },
+      });
+      expect(findDescriptionPlainText().text()).toContain(multipleFindingsArr[0].severity);
+      expect(findDescriptionPlainText().text()).toContain(multipleFindingsArr[0].description);
+    });
+  });
+
+  describe('with codeQualityInlineDrawer flag true', () => {
+    beforeEach(() => {
+      wrapper = createWrapper({
+        glFeatures: {
+          codeQualityInlineDrawer: true,
+        },
+      });
+    });
+
+    it('should render severity as plain text', () => {
+      expect(findDescriptionLinkSection().text()).toContain(multipleFindingsArr[0].severity);
+    });
+
+    it('should render button with description text', () => {
+      expect(findButton().text()).toContain(multipleFindingsArr[0].description);
+    });
+  });
+});