Add tests

src/components/theme/Icon/Icon.test.jsx

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+import React from 'react';
+import renderer from 'react-test-renderer';
+import Icon from './Icon';
+
+test.only('Renders icon', () => {
+  const component = renderer.create(
+    <Icon
+      size="14px"
+      color="#007bc1"
+      className="my-icon"
+      title="My Icon"
+      name={{
+        attributes: {
+          xmlns: 'http://www.w3.org/2000/svg',
+          viewBox: '0 0 36 36',
+        },
+        content: 'Accessibility',
+      }}
+    />,
+  );
+  const json = component.toJSON();
+  expect(json).toMatchSnapshot();
+});

src/components/theme/Icon/__snapshots__/Icon.test.jsx.snap

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+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Renders icon 1`] = `
+<svg
+  className="icon my-icon"
+  dangerouslySetInnerHTML={
+    Object {
+      "__html": "<title>My Icon</title>Accessibility",
+    }
+  }
+  style={
+    Object {
+      "fill": "#007bc1",
+      "height": "14px",
+      "width": "auto",
+    }
+  }
+  viewBox="0 0 36 36"
+  xmlns="http://www.w3.org/2000/svg"
+/>
+`;