fix(test): increase coverage

src/Block/HorizontalMenu.test.jsx

@@ -0,0 +1,18 @@
+import React from 'react';
+import renderer from 'react-test-renderer';
+import HorizontalMenu from './HorizontalMenu';
+
+jest.mock('react-intl', () => ({
+  injectIntl: jest.fn((Component) => Component),
+}));
+
+describe('HorizontalMenu', () => {
+  it('renders correctly', () => {
+    const component = renderer.create(
+      <HorizontalMenu properties={{}} data={{ title: 'Heading title' }} />,
+    );
+    const json = component.toJSON();
+    expect(json).toMatchSnapshot();
+    expect(component).toMatchSnapshot();
+  });
+});

src/Block/__snapshots__/HorizontalMenu.test.jsx.snap

@@ -0,0 +1,45 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`HorizontalMenu renders correctly 1`] = `
+Array [
+  <h2>
+    Heading title
+  </h2>,
+  <div
+    className=""
+  >
+    <div
+      style={Object {}}
+    />
+    <div
+      className="ui sticky"
+    >
+      <div
+        className="ui menu"
+      />
+    </div>
+  </div>,
+]
+`;
+
+exports[`HorizontalMenu renders correctly 2`] = `
+Array [
+  <h2>
+    Heading title
+  </h2>,
+  <div
+    className=""
+  >
+    <div
+      style={Object {}}
+    />
+    <div
+      className="ui sticky"
+    >
+      <div
+        className="ui menu"
+      />
+    </div>
+  </div>,
+]
+`;