test(button-cluster-module): add unit tests (#867)

* test(button-cluster-module): add unit tests

* chore: merge `dev` into `button-cluster-module-tests`

src/components/LayoutModules/ButtonClusterModule/__tests__/ButtonClusterModule.spec.js

@@ -0,0 +1,40 @@
+/**
+ * @file Button cluster module tests.
+ * @copyright IBM Security 2020
+ */
+
+import { render } from '@testing-library/react';
+import React from 'react';
+
+import { ButtonClusterModule } from '../../../..';
+
+const { name } = ButtonClusterModule;
+
+describe(name, () => {
+  test('has no accessibility violations', async () => {
+    const { container } = render(
+      <ButtonClusterModule>{name}</ButtonClusterModule>
+    );
+
+    await expect(container).toHaveNoAxeViolations();
+    await expect(container).toHaveNoDAPViolations(name);
+  });
+
+  test(`adds content for the '${name}'`, () => {
+    expect(
+      render(<ButtonClusterModule>{name}</ButtonClusterModule>).getByText(name)
+    ).toBeInTheDocument();
+  });
+
+  test('adds additional props to the containing node', () => {
+    const dataTestId = 'dataTestId';
+
+    expect(
+      render(
+        <ButtonClusterModule data-testid={dataTestId}>
+          {name}
+        </ButtonClusterModule>
+      ).getByTestId(dataTestId)
+    ).toBeInTheDocument();
+  });
+});