package com.epam.wilma.webapp.config.servlet;
/*==========================================================================
Copyright 2013-2017 EPAM Systems
This file is part of Wilma.
Wilma is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Wilma is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Wilma. If not, see <http://www.gnu.org/licenses/>.
===========================================================================*/
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.verify;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import org.mockito.internal.util.reflection.Whitebox;
import org.slf4j.Logger;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.epam.wilma.webapp.config.servlet.helper.BufferedReaderFactory;
/**
* Provides unit tests for the class {@link SchemaProviderServlet}.
* @author Tunde_Kovacs
*
*/
public class SchemaProviderServletTest {
private static final String SCHEMA = "StubConfig.xsd";
@Mock
private BufferedReaderFactory bufferedReaderFactory;
@Mock
private Logger logger;
@Mock
private HttpServletRequest request;
@Mock
private HttpServletResponse response;
@Mock
private PrintWriter writer;
@Mock
private BufferedReader reader;
@InjectMocks
private SchemaProviderServlet underTest;
@BeforeMethod
public void setUp() throws IOException {
MockitoAnnotations.initMocks(this);
Whitebox.setInternalState(underTest, "stubConfigSchemaLocation", SCHEMA);
Whitebox.setInternalState(underTest, "logger", logger);
given(response.getWriter()).willReturn(writer);
}
@Test
public void testDoGetShouldWriteSchemaFile() throws ServletException, IOException {
//GIVEN
String nullString = null;
given(bufferedReaderFactory.createBufferedReader(SCHEMA)).willReturn(reader);
given(reader.readLine()).willReturn("first line", nullString);
//WHEN
underTest.doGet(request, response);
//THEN
verify(writer).write(Mockito.anyString());
}
@Test
public void testDoGetShouldSetContentTypeToXml() throws ServletException, IOException {
//GIVEN
String nullString = null;
given(bufferedReaderFactory.createBufferedReader(SCHEMA)).willReturn(reader);
given(reader.readLine()).willReturn(nullString);
//WHEN
underTest.doGet(request, response);
//THEN
verify(response).setContentType("application/xml");
}
@Test
public void testDoGetShouldCloseWriter() throws ServletException, IOException {
//GIVEN
String nullString = null;
given(bufferedReaderFactory.createBufferedReader(SCHEMA)).willReturn(reader);
given(reader.readLine()).willReturn(nullString);
//WHEN
underTest.doGet(request, response);
//THEN
verify(writer).close();
}
@Test
public void testDoGetWhenIOExceptionShouldLogError() throws ServletException, IOException {
//GIVEN
given(bufferedReaderFactory.createBufferedReader(SCHEMA)).willReturn(reader);
IOException exception = new IOException();
given(reader.readLine()).willThrow(exception);
//WHEN
underTest.doGet(request, response);
//THEN
verify(logger).error(SCHEMA + " could not be read!", exception);
}
@Test
public void testDoPostShouldCallDoGet() throws ServletException, IOException {
//GIVEN
String nullString = null;
given(bufferedReaderFactory.createBufferedReader(SCHEMA)).willReturn(reader);
given(reader.readLine()).willReturn("first line", nullString);
//WHEN
underTest.doPost(request, response);
//THEN
verify(writer).write(Mockito.anyString());
}
}