1 files changed, 47 insertions, 0 deletions
diff --git a/spec/frontend/blob/blob_blame_link_spec.js b/spec/frontend/blob/blob_blame_link_spec.js
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index 00000000000..0d19177a11f
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+++ b/spec/frontend/blob/blob_blame_link_spec.js
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+import { setHTMLFixture, resetHTMLFixture } from 'helpers/fixtures';
+import addBlameLink from '~/blob/blob_blame_link';
+
+describe('Blob links', () => {
+  const mouseoverEvent = new MouseEvent('mouseover', {
+    view: window,
+    bubbles: true,
+    cancelable: true,
+  });
+
+  beforeEach(() => {
+    setHTMLFixture(`
+    <div id="blob-content-holder">
+      <div class="line-numbers" data-blame-path="/blamePath">
+        <a id="L5" href="#L5" data-line-number="5" class="file-line-num js-line-links">5</a>
+      </div>
+      <pre id="LC5">Line 5 content</pre>
+    </div>
+    `);
+
+    addBlameLink('#blob-content-holder', 'js-line-links');
+    document.querySelector('.file-line-num').dispatchEvent(mouseoverEvent);
+  });
+
+  afterEach(() => {
+    resetHTMLFixture();
+  });
+
+  it('adds wrapper elements with correct classes', () => {
+    const wrapper = document.querySelector('.line-links');
+
+    expect(wrapper).toBeTruthy();
+    expect(wrapper.classList).toContain('diff-line-num');
+  });
+
+  it('adds blame link with correct classes and path', () => {
+    const blameLink = document.querySelector('.file-line-blame');
+    expect(blameLink).toBeTruthy();
+    expect(blameLink.getAttribute('href')).toBe('/blamePath#L5');
+  });
+
+  it('adds line link within wraper with correct classes and path', () => {
+    const lineLink = document.querySelector('.file-line-num');
+    expect(lineLink).toBeTruthy();
+    expect(lineLink.getAttribute('href')).toBe('#L5');
+  });
+});