/*
* Copyright (c) 2007-2012 The Broad Institute, Inc.
* SOFTWARE COPYRIGHT NOTICE
* This software and its documentation are the copyright of the Broad Institute, Inc. All rights are reserved.
*
* This software is supplied without any warranty or guaranteed support whatsoever. The Broad Institute is not
* responsible for its use, misuse, or functionality.
*
* This software is licensed under the terms of the GNU Lesser General Public License (LGPL), Version 2.1 which is
* available at http://www.opensource.org/licenses/lgpl-2.1.php.
*/
package org.broad.igv.feature;
import org.broad.igv.feature.tribble.GFFCodec;
import org.broad.igv.track.GFFFeatureSource;
import org.broad.igv.track.TribbleFeatureSource;
import org.broad.igv.util.ResourceLocator;
import org.broad.igv.util.TestUtils;
import htsjdk.tribble.Feature;
import org.junit.Test;
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import static junit.framework.Assert.*;
/**
* @author Jim Robinson
* @date 5/10/12
*/
public class GFFTest{//} extends AbstractHeadlessTest{
private List<Feature> getFeatures(String filePath) throws Exception{
GFFFeatureSource src = new GFFFeatureSource(TribbleFeatureSource.getFeatureSource(new ResourceLocator(filePath), null));
List<Feature> features = new ArrayList<Feature>();
Iterator<Feature> iter = src.getFeatures("chr1", 0, Integer.MAX_VALUE);
while(iter.hasNext()) features.add(iter.next());
return features;
}
/**
* This test verifies that the attributes from column 9 are retained for a CDS feature that does not have a parent.
* This bugfix was released with 2.1.12.
*
* @throws Exception
*/
@Test
public void testLoadSingleCDS() throws Exception {
String gtfFile = TestUtils.DATA_DIR + "gtf/single_cds.gtf";
List<Feature> features = getFeatures(gtfFile);
assertEquals(1, features.size());
BasicFeature bf = (BasicFeature) features.get(0);
Exon exon = bf.getExons().get(0);
assertNotNull(exon.getAttributes());
}
/**
* Test that we parse the various spellings of "color" correctly
* v2.2.0/2.2.1 had a bug where an attribute would be checked for
* but a different one accessed
* @throws Exception
*/
@Test
public void testGFFColorSpellings() throws Exception{
String gffFile = TestUtils.DATA_DIR + "gff/color_sps.gff";
List<Feature> features = getFeatures(gffFile);
assertEquals("Error parsing certain features", 6, features.size());
for(Feature f: features){
BasicFeature bf = (BasicFeature) f;
boolean haveColor = bf.getColor() != null;
if(bf.hasExons()){
for(Exon ex: bf.getExons()){
haveColor |= ex.getColor() != null;
}
}
assertTrue(haveColor);
}
}
@Test
public void testGFF2_parentIds() throws Exception{
String path = TestUtils.DATA_DIR + "gff/parentIds.gff";
List<Feature> features = getFeatures(path);
assertEquals(1, features.size());
BasicFeature bf = (BasicFeature) features.get(0);
int numExons = 17;
assertEquals(numExons, bf.getExons().size());
Exon lastExon = bf.getExons().get(numExons - 1);
assertTrue(lastExon.isNonCoding());
assertEquals(3807030 - 1, lastExon.getStart());
}
}