test: add unit tests for hiddenElements utility for markdownUtils.ts file

Author: Rishi2600

cypress/components/lib/markdownUtils.cy.ts

@@ -0,0 +1,45 @@
+import { hiddenElements } from '~/lib/markdownUtils';
+
+type HiddenComponents = Record<string, { component: () => null }>;
+
+// Describe what we're testing
+describe('hiddenElements', () => {
+  // Test 1: Basic functionality
+  it('creates an object with a component for each element name', () => {
+    // Arrange: What we're testing with
+    const elementNames = ['Header', 'Footer', 'Sidebar'];
+
+    // Act: Call the function
+    const result = hiddenElements(...elementNames) as HiddenComponents;
+
+    // Assert: Check the result
+    // Should have 3 keys
+    expect(Object.keys(result)).to.have.length(3);
+
+    // Each key should exist
+    expect(result).to.have.property('Header');
+    expect(result).to.have.property('Footer');
+    expect(result).to.have.property('Sidebar');
+
+    // Each value should have a component function
+    expect(result.Header).to.have.property('component');
+    expect(result.Header.component).to.be.a('function');
+
+    // Component should return null
+    expect(result.Header.component()).to.be.null;
+  });
+
+  it('returns empty object when no elements provided', () => {
+    const result = hiddenElements();
+    expect(result).to.deep.equal({});
+  });
+
+  it('handles single element', () => {
+    const result = hiddenElements('Navbar') as Record<
+      string,
+      { component: () => null }
+    >;
+    expect(Object.keys(result)).to.have.length(1);
+    expect(result.Navbar.component()).to.be.null;
+  });
+});