refactor(ThemeProvider): Rewrite test to use hook instead of HOC (#141)

[ci skip]

Author: MarcusNotheis

lerna.json

@@ -2,7 +2,7 @@
   "packages": [
     "packages/*"
   ],
-  "version": "0.6.1-rc.0",
+  "version": "0.6.0-rc.0",
   "npmClient": "yarn",
   "useWorkspaces": true,
   "command": {

packages/main/src/components/ThemeProvider/ThemeProvider.test.tsx

@@ -1,16 +1,18 @@
-import { withStyles } from '@ui5/webcomponents-react-base/lib/withStyles';
+import { ThemeProvider } from '@ui5/webcomponents-react/lib/ThemeProvider';
 import { mount } from 'enzyme';
 import React from 'react';
-import { ThemeProvider } from '@ui5/webcomponents-react/lib/ThemeProvider';
+import { useTheme } from 'react-jss';
+import { JSSTheme } from '../../interfaces/JSSTheme';
 
 describe('ThemeProvider', () => {
   it('Provides Correct Context', (done) => {
-    const InnerComponent = withStyles(() => {})(({ theme }) => {
+    const InnerComponent = () => {
+      const theme = useTheme() as JSSTheme;
       expect(theme.theme).toEqual('sap_fiori_3');
       expect(theme.contentDensity).toEqual('Cozy');
       done();
       return null;
-    });
+    };
 
     mount(
       <ThemeProvider>