added test for correct usage of base64URL encoding

package org.eclipse.openk.portal.util;

import org.eclipse.openk.portal.auth2.model.JwtPayload;

import org.eclipse.openk.portal.auth2.model.JwtToken;

import org.eclipse.openk.portal.auth2.util.JwtHelper;

import org.junit.Test;

import static org.junit.Assert.assertNotNull;

public class JwtHelperTest {

    @Test

    public void testGetJwtPayload_Base64URL() {

        String base64urlToken = "eyJqdGkiOiI3NDVmOTc4Zi00OTYwLTRlO"+

                                "WYtYmFiMS1jNjdkZjMzODEwYjQiLCJleH"+

                                "AiOjE1MTYwMTAxNDksIm5iZiI6MCwiaWF"+

                                "0IjoxNTE2MDA5ODQ5LCJpc3MiOiJodHRw"+

                                "Oi8vbG9jYWxob3N0OjgwOTAvYXV0aC9yZ"+

                                "WFsbXMvTVZWTmV0emUiLCJhdWQiOiJlbG"+

                                "9nYm9vay1iYWNrZW5kIiwic3ViIjoiNTk"+

                                "5ZWY3NzMtNjRmYS00MzM2LWIwNDktMmEz"+

                                "Njc4NTEzZTU4IiwidHlwIjoiQmVhcmVyI"+

                                "iwiYXpwIjoiZWxvZ2Jvb2stYmFja2VuZC"+

                                "IsImF1dGhfdGltZSI6MCwic2Vzc2lvbl9"+

                                "zdGF0ZSI6ImE2OGE4MzNkLTRiNTItNDgw"+

                                "My05MDU4LTRkNjJhNmI3NzI3MCIsImFjc"+

                                "iI6IjEiLCJhbGxvd2VkLW9yaWdpbnMiOl"+

                                "siKiJdLCJyZWFsbV9hY2Nlc3MiOnsicm9"+

                                "sZXMiOlsiZWxvZ2Jvb2stYWNjZXNzIiwi"+

                                "ZWxvZ2Jvb2stbm9ybWFsdXNlciIsInVtY"+

                                "V9hdXRob3JpemF0aW9uIl19LCJyZXNvdX"+

                                "JjZV9hY2Nlc3MiOnsiYWNjb3VudCI6eyJ"+

                                "yb2xlcyI6WyJtYW5hZ2UtYWNjb3VudCIs"+

                                "Im1hbmFnZS1hY2NvdW50LWxpbmtzIiwid"+

                                "mlldy1wcm9maWxlIl19fSwicm9sZXMiOi"+

                                "JbdW1hX2F1dGhvcml6YXRpb24sIGVsb2d"+

                                "ib29rLWFjY2VzcywgZWxvZ2Jvb2stbm9y"+

                                "bWFsdXNlciwgb2ZmbGluZV9hY2Nlc3NdI"+

                                "iwibmFtZSI6IlV3ZSByb8OfIiwicHJlZm"+

                                "VycmVkX3VzZXJuYW1lIjoib3Blbmt0ZXN"+

                                "0IiwiZ2l2ZW5fbmFtZSI6IlV3ZSIsImZh"+

                                "bWlseV9uYW1lIjoicm_DnyJ9";

        base64urlToken = "AA."+base64urlToken+".CC";

        // this payload contains a char with is valid in Base64URL but NOT in Base64.

        JwtToken jt = new JwtToken();

        jt.setAccessToken(base64urlToken);

        JwtPayload pl = JwtHelper.getPayLoad(jt);

        assertNotNull( pl );

    }

}