import popper.js

Signed-off-by: Nico Schottelius <nico@nico-notebook.schottelius.org>

assets/u/static/popper.js-1.16.0/packages/popper/tests/unit/isFixed.js

@@ -0,0 +1,50 @@
+import chai from 'chai';
+const { expect } = chai;
+import isFixed from '../../src/utils/isFixed';
+
+describe('utils/isFixed', () => {
+  let node;
+
+  beforeEach(() => {
+    node = document.createElement('div');
+    document.body.appendChild(node);
+  });
+
+  afterEach(() => {
+    document.body.removeChild(node);
+  });
+
+  it('element is just appended to the body', () => {
+    expect(isFixed(node)).to.be.false;
+  });
+
+  it('element is inside fixed element', () => {
+    const innerNode = document.createElement('div');
+    node.style.position = 'fixed';
+    node.appendChild(innerNode);
+    expect(isFixed(node)).to.be.true;
+  });
+
+  it('element is deep inside fixed element', () => {
+    const innerNode = document.createElement('div');
+    node.style.position = 'fixed';
+    node.innerHTML = '<div><div></div></div>';
+    node.firstChild.firstChild.appendChild(innerNode);
+    expect(isFixed(node)).to.be.true;
+  });
+
+  it('element is inside an element with any position other than fixed', () => {
+    ['static', 'relative', 'absolute'].forEach(position => {
+      const innerNode = document.createElement('div');
+      node.style.position = position;
+      node.innerHTML = '<div><div></div></div>';
+      node.firstChild.firstChild.appendChild(innerNode);
+      expect(isFixed(node)).to.be.false;
+    });
+  });
+
+  it('element is detached from the DOM', () => {
+    const node = document.createElement('div');
+    expect(isFixed(node)).to.be.false;
+  });
+});