@Test public void testSelectHeaderContentType() { String[] contentTypes = {"APPLICATION/JSON", "APPLICATION/XML"}; assertEquals("application/json", apiClient.selectHeaderContentType(contentTypes)); contentTypes = new String[] {"application/json", "application/xml"}; assertEquals("application/json", apiClient.selectHeaderContentType(contentTypes)); contentTypes = new String[] {"application/xml", "application/json"}; assertEquals("application/json", apiClient.selectHeaderContentType(contentTypes)); contentTypes = new String[] {"text/plain", "application/xml"}; assertEquals("text/plain", apiClient.selectHeaderContentType(contentTypes)); contentTypes = new String[] {}; assertEquals("application/json", apiClient.selectHeaderContentType(contentTypes)); }