package com.epam.wilma.core.processor.entity;
/*==========================================================================
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.never;
import static org.mockito.Mockito.verify;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.epam.wilma.compression.gzip.GzipCompressionService;
import com.epam.wilma.domain.exception.ApplicationException;
import com.epam.wilma.domain.http.WilmaHttpEntity;
/**
* Provides unit tests for the class {@link GzipDecompressorProcessor}.
* @author Tunde_Kovacs
*
*/
public class GzipDecompressorProcessorTest {
private static final String GZIP_ENCODING = "Content-Encoding";
private static final String GZIP = "gzip";
@Mock
private GzipCompressionService decompressor;
@Mock
private WilmaHttpEntity entity;
@Mock
private InputStream inputStream;
@Mock
private ByteArrayOutputStream body;
@InjectMocks
private GzipDecompressorProcessor underTest;
@BeforeMethod
public void setUp() {
MockitoAnnotations.initMocks(this);
byte[] byteArray = new byte[0];
given(body.toByteArray()).willReturn(byteArray);
}
@Test
public void testProcessShouldCallDecompressor() throws ApplicationException {
//GIVEN
given(entity.getHeader(GZIP_ENCODING)).willReturn(GZIP);
given(entity.getInputStream()).willReturn(inputStream);
given(decompressor.decompress(inputStream)).willReturn(body);
//WHEN
underTest.process(entity);
//THEN
verify(decompressor).decompress(inputStream);
}
@Test
public void testProcessShouldSetBodyWhenDecompressionNeeded() throws ApplicationException {
//GIVEN
given(entity.getHeader(GZIP_ENCODING)).willReturn(GZIP);
given(entity.getInputStream()).willReturn(inputStream);
given(decompressor.decompress(inputStream)).willReturn(body);
//WHEN
underTest.process(entity);
//THEN
verify(entity).setBody(body.toString());
}
@Test
public void testProcessShouldNotSetBodyWhenDecompressionNotNeeded() throws ApplicationException {
//GIVEN
given(entity.getHeader(GZIP_ENCODING)).willReturn("xml");
given(entity.getInputStream()).willReturn(inputStream);
given(decompressor.decompress(inputStream)).willReturn(body);
//WHEN
underTest.process(entity);
//THEN
verify(decompressor, never()).decompress(inputStream);
}
@Test
public void testProcessShouldNotSetBodyWhenHeaderIsNull() throws ApplicationException {
//GIVEN
given(entity.getHeader(GZIP_ENCODING)).willReturn(null);
given(entity.getInputStream()).willReturn(inputStream);
given(decompressor.compress(inputStream)).willReturn(body);
//WHEN
underTest.process(entity);
//THEN
verify(decompressor, never()).decompress(inputStream);
}
}