Added tests for new logics

test/utils/ForVersion.test.js

@@ -0,0 +1,43 @@
+import React from 'react';
+import { mount } from 'enzyme';
+import ForVersion from '../../src/utils/ForVersion';
+
+describe('<ForVersion />', () => {
+  let wrapped;
+
+  const renderComponent = (minVersion, currentServerVersion) => {
+    wrapped = mount(
+      <ForVersion minVersion={minVersion} currentServerVersion={currentServerVersion}>
+        <span>Hello</span>
+      </ForVersion>
+    );
+
+    return wrapped;
+  };
+
+  afterEach(() => wrapped && wrapped.unmount());
+
+  it('does not render children when current version is empty', () => {
+    const wrapped = renderComponent('1', '');
+
+    expect(wrapped.html()).toBeNull();
+  });
+
+  it('does not render children when current version is lower than min version', () => {
+    const wrapped = renderComponent('2.0.0', '1.8.3');
+
+    expect(wrapped.html()).toBeNull();
+  });
+
+  it('renders children when current version is equal min version', () => {
+    const wrapped = renderComponent('2.0.0', '2.0.0');
+
+    expect(wrapped.html()).toContain('<span>Hello</span>');
+  });
+
+  it('renders children when current version is higher than min version', () => {
+    const wrapped = renderComponent('2.0.0', '2.1.0');
+
+    expect(wrapped.html()).toContain('<span>Hello</span>');
+  });
+});