### Question:
CommonUtils { public static String doHttpGet(final String url) { CloseableHttpClient httpclient = null; try { if (url.contains(HTTPS)) { SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(createNoSSLContext()); httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build(); } else { httpclient = HttpClients.custom().build(); } HttpGet httpGet = new HttpGet(url); if(AuthManager.getToken()!=null){ String accessToken = AuthManager.getToken(); if(!Strings.isNullOrEmpty(accessToken)) { httpGet.setHeader(PacmanSdkConstants.AUTH_HEADER, "Bearer " + accessToken); } } httpGet.setHeader(CONTENT_TYPE, APPLICATION_JSON); CloseableHttpResponse response = httpclient.execute(httpGet); return EntityUtils.toString(response.getEntity()); } catch (Exception exception) { LOGGER.error("Exception in getHttpGet: " + exception.getMessage()); } finally { if (null != httpclient) { try { httpclient.close(); } catch (IOException e) { LOGGER.error("error closing http client", e); httpclient = null; } } } return null; }  static Boolean isEnvVariableExists(String envVariableName); static String getEnvVariableValue(String envVariableName); static String doHttpPost(final String url,  String requestBody); static String doHttpPut(final String url, final String requestBody); static boolean isValidResource(String esUrl); static Object buildQueryForExistingIssues(Map<String, Object> filter); static String getIndexNameFromRuleParam(Map<String, String> ruleParam); @SuppressWarnings("unchecked") static Map<String, String> flatNestedMap(String notation, Map<String, Object> nestedMap); static String getUniqueAnnotationId(Annotation annotation); static String getUniqueAnnotationId(String parentId, String ruleId); static String getUniqueIdForString(String inStr); static String hash(String s); static Map<String, String> createParamMap(String ruleParams); static String decrypt(String encryptedText); static Map<String, String> buildMapFromString(String input, String splitOn, String keyValueSeparator); static Long getElapseTimeSince(long startTime); static String getCurrentDateStringWithFormat(String timeZone, String format); static Date getDateFromString(final String dateInString, final String format); static Date dateFormat(final String dateInString, String formatFrom, String formatTo); static int compareDate(final Date firstDate, final Date lastDate); static boolean resourceCreatedBeforeCutoffData(final Date resourceCreationDate); static String doHttpPost(final String url, final String requestBody, final Map<String, String> headers); static String doHttpGet(final String url); static SSLContext createNoSSLContext(); static String getJsonString(final Object annotation); static String encryptB64(String plainText); static String decryptB64(String text); static String encrypt(String plainText, final String key); static String decrypt(String encryptedText, final String key); static String getPropValue(final String keyname); static String getTemplateContent(final String templateName); static String serializeToString(Object object); static Object deSerializeToObject(String jsonString); static Boolean doesAllHaveValue(String...strings );  }### Answer:
@Test public void doHttpGetTest() throws Exception{ PowerMockito.when(httpClient.execute((HttpGet) any())).thenReturn(httpResponse); assertNotNull(CommonUtils.doHttpGet("http: }
@SuppressWarnings("unchecked") @Test public void doHttpGetExceptionTest() throws ClientProtocolException, IOException { PowerMockito.when(httpClient.execute((HttpGet) any())).thenThrow(Exception.class); assertNull(CommonUtils.doHttpGet("http: }