test/jalview/ext/ensembl/EnsemblGeneTest.java

   1 /*
   2  * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
   3  * Copyright (C) $$Year-Rel$$ The Jalview Authors
   4  *
   5  * This file is part of Jalview.
   6  *
   7  * Jalview is free software: you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation, either version 3
  10  * of the License, or (at your option) any later version.
  11  *
  12  * Jalview is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty
  14  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15  * PURPOSE.  See the GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
  19  * The Jalview Authors are detailed in the 'AUTHORS' file.
  20  */
  21 package jalview.ext.ensembl;
  22
  23 import static org.testng.AssertJUnit.assertEquals;
  24 import static org.testng.AssertJUnit.assertFalse;
  25 import static org.testng.AssertJUnit.assertTrue;
  26
  27 import jalview.api.FeatureSettingsModelI;
  28 import jalview.datamodel.SequenceDummy;
  29 import jalview.datamodel.SequenceFeature;
  30 import jalview.datamodel.SequenceI;
  31 import jalview.gui.JvOptionPane;
  32 import jalview.io.gff.SequenceOntologyFactory;
  33 import jalview.io.gff.SequenceOntologyLite;
  34 import jalview.util.MapList;
  35
  36 import java.awt.Color;
  37 import java.util.List;
  38
  39 import org.testng.annotations.AfterClass;
  40 import org.testng.annotations.BeforeClass;
  41 import org.testng.annotations.Test;
  42
  43 public class EnsemblGeneTest
  44 {
  45
  46   @BeforeClass(alwaysRun = true)
  47   public void setUpJvOptionPane()
  48   {
  49     JvOptionPane.setInteractiveMode(false);
  50     JvOptionPane.setMockResponse(JvOptionPane.CANCEL_OPTION);
  51   }
  52
  53   @BeforeClass(alwaysRun = true)
  54   public void setUp()
  55   {
  56     SequenceOntologyFactory.setInstance(new SequenceOntologyLite());
  57   }
  58
  59   @AfterClass(alwaysRun = true)
  60   public void tearDown()
  61   {
  62     SequenceOntologyFactory.setInstance(null);
  63   }
  64
  65   /**
  66    * Test that the gene part of genomic sequence is uniquely identified by a
  67    * 'gene' features (or subtype) with the correct gene ID
  68    */
  69   @Test(groups = "Functional")
  70   public void testGetGenomicRangesFromFeatures()
  71   {
  72     EnsemblGene testee = new EnsemblGene();
  73     SequenceI genomic = new SequenceDummy("chr7");
  74     genomic.setStart(10000);
  75     genomic.setEnd(50000);
  76     String geneId = "ABC123";
  77
  78     // gene at (start+20000) length 501
  79     // should be ignored - the first 'gene' found defines the whole range
  80     // (note features are found in position order, not addition order)
  81     SequenceFeature sf = new SequenceFeature("gene", "", 20000, 20500, 0f,
  82             null);
  83     sf.setValue("ID", "gene:" + geneId);
  84     sf.setStrand("+");
  85     genomic.addSequenceFeature(sf);
  86
  87     // gene at (start + 10500) length 101
  88     sf = new SequenceFeature("gene", "", 10500, 10600, 0f, null);
  89     sf.setValue("ID", "gene:" + geneId);
  90     sf.setStrand("+");
  91     genomic.addSequenceFeature(sf);
  92
  93     MapList ranges = testee.getGenomicRangesFromFeatures(genomic, geneId,
  94             23);
  95     List<int[]> fromRanges = ranges.getFromRanges();
  96     assertEquals(1, fromRanges.size());
  97     assertEquals(10500, fromRanges.get(0)[0]);
  98     assertEquals(10600, fromRanges.get(0)[1]);
  99     // to range should start from given start numbering
 100     List<int[]> toRanges = ranges.getToRanges();
 101     assertEquals(1, toRanges.size());
 102     assertEquals(23, toRanges.get(0)[0]);
 103     assertEquals(123, toRanges.get(0)[1]);
 104   }
 105
 106   /**
 107    * Test variant using a sub-type of gene from the Sequence Ontology
 108    */
 109   @Test(groups = "Functional")
 110   public void testGetGenomicRangesFromFeatures_ncRNA_gene_reverseStrand()
 111   {
 112     EnsemblGene testee = new EnsemblGene();
 113     SequenceI genomic = new SequenceDummy("chr7");
 114     genomic.setStart(10000);
 115     genomic.setEnd(50000);
 116     String geneId = "ABC123";
 117
 118     // gene at (start+20000) length 501
 119     // should be ignored - the first 'gene' found defines the whole range
 120     // (real data would only have one such feature)
 121     SequenceFeature sf = new SequenceFeature("ncRNA_gene", "", 20000,
 122             20500, 0f, null);
 123     sf.setValue("ID", "gene:" + geneId);
 124     sf.setStrand("-");
 125     genomic.addSequenceFeature(sf);
 126
 127     // gene at (start + 10500) length 101
 128     sf = new SequenceFeature("gene", "", 10500, 10600, 0f, null);
 129     sf.setValue("ID", "gene:" + geneId);
 130     sf.setStrand("+");
 131     genomic.addSequenceFeature(sf);
 132
 133     MapList ranges = testee.getGenomicRangesFromFeatures(genomic, geneId,
 134             23);
 135     List<int[]> fromRanges = ranges.getFromRanges();
 136     assertEquals(1, fromRanges.size());
 137     // from range on reverse strand:
 138     assertEquals(10500, fromRanges.get(0)[0]);
 139     assertEquals(10600, fromRanges.get(0)[1]);
 140     // to range should start from given start numbering
 141     List<int[]> toRanges = ranges.getToRanges();
 142     assertEquals(1, toRanges.size());
 143     assertEquals(23, toRanges.get(0)[0]);
 144     assertEquals(123, toRanges.get(0)[1]);
 145   }
 146
 147   /**
 148    * Test the method that extracts transcript (or subtype) features with a
 149    * specified gene as parent
 150    */
 151   @Test(groups = "Functional")
 152   public void testGetTranscriptFeatures()
 153   {
 154     SequenceI genomic = new SequenceDummy("chr7");
 155     genomic.setStart(10000);
 156     genomic.setEnd(50000);
 157     String geneId = "ABC123";
 158
 159     // transcript feature
 160     SequenceFeature sf1 = new SequenceFeature("transcript", "", 20000,
 161             20500, 0f, null);
 162     sf1.setValue("Parent", "gene:" + geneId);
 163     sf1.setValue("transcript_id", "transcript1");
 164     genomic.addSequenceFeature(sf1);
 165
 166     // transcript sub-type feature
 167     SequenceFeature sf2 = new SequenceFeature("snRNA", "", 21000, 21500,
 168             0f, null);
 169     sf2.setValue("Parent", "gene:" + geneId);
 170     sf2.setValue("transcript_id", "transcript2");
 171     genomic.addSequenceFeature(sf2);
 172
 173     // NMD_transcript_variant treated like transcript in Ensembl
 174     SequenceFeature sf3 = new SequenceFeature("NMD_transcript_variant", "",
 175             22000, 22500, 0f, null);
 176     sf3.setValue("Parent", "gene:" + geneId);
 177     sf3.setValue("transcript_id", "transcript3");
 178     genomic.addSequenceFeature(sf3);
 179
 180     // transcript for a different gene - ignored
 181     SequenceFeature sf4 = new SequenceFeature("snRNA", "", 23000, 23500,
 182             0f, null);
 183     sf4.setValue("Parent", "gene:XYZ");
 184     sf4.setValue("transcript_id", "transcript4");
 185     genomic.addSequenceFeature(sf4);
 186
 187     EnsemblGene testee = new EnsemblGene();
 188
 189     /*
 190      * with no filter
 191      */
 192     List<SequenceFeature> features = testee.getTranscriptFeatures(geneId,
 193             genomic);
 194     assertEquals(3, features.size());
 195     assertTrue(features.contains(sf1));
 196     assertTrue(features.contains(sf2));
 197     assertTrue(features.contains(sf3));
 198   }
 199
 200   /**
 201    * Test the method that retains features except for 'gene', or 'transcript'
 202    * with parent other than the given id
 203    */
 204   @Test(groups = "Functional")
 205   public void testRetainFeature()
 206   {
 207     String geneId = "ABC123";
 208     EnsemblGene testee = new EnsemblGene();
 209     SequenceFeature sf = new SequenceFeature("gene", "", 20000, 20500, 0f,
 210             null);
 211     sf.setValue("ID", "gene:" + geneId);
 212     assertFalse(testee.retainFeature(sf, geneId));
 213
 214     sf = new SequenceFeature("transcript", "", 20000, 20500, 0f, null);
 215     sf.setValue("Parent", "gene:" + geneId);
 216     assertTrue(testee.retainFeature(sf, geneId));
 217
 218     sf = new SequenceFeature("mature_transcript", "", 20000, 20500, 0f,
 219             null);
 220     sf.setValue("Parent", "gene:" + geneId);
 221     assertTrue(testee.retainFeature(sf, geneId));
 222
 223     sf = new SequenceFeature("NMD_transcript_variant", "", 20000, 20500,
 224             0f, null);
 225     sf.setValue("Parent", "gene:" + geneId);
 226     assertTrue(testee.retainFeature(sf, geneId));
 227
 228     sf.setValue("Parent", "gene:XYZ");
 229     assertFalse(testee.retainFeature(sf, geneId));
 230
 231     sf = new SequenceFeature("anything", "", 20000, 20500, 0f, null);
 232     assertTrue(testee.retainFeature(sf, geneId));
 233   }
 234
 235   /**
 236    * Test the method that picks out 'gene' (or subtype) features with the
 237    * accession id as ID
 238    */
 239   @Test(groups = "Functional")
 240   public void testIdentifiesSequence()
 241   {
 242     String accId = "ABC123";
 243     EnsemblGene testee = new EnsemblGene();
 244
 245     // gene with no ID not valid
 246     SequenceFeature sf = new SequenceFeature("gene", "", 1, 2, 0f, null);
 247     assertFalse(testee.identifiesSequence(sf, accId));
 248
 249     // gene with wrong ID not valid
 250     sf.setValue("ID", "gene:XYZ");
 251     assertFalse(testee.identifiesSequence(sf, accId));
 252
 253     // gene with right ID is valid
 254     sf.setValue("ID", "gene:" + accId);
 255     assertTrue(testee.identifiesSequence(sf, accId));
 256
 257     // gene sub-type with right ID is valid
 258     sf = new SequenceFeature("snRNA_gene", "", 1, 2, 0f, null);
 259     sf.setValue("ID", "gene:" + accId);
 260     assertTrue(testee.identifiesSequence(sf, accId));
 261
 262     // transcript not valid:
 263     sf = new SequenceFeature("transcript", "", 1, 2, 0f, null);
 264     sf.setValue("ID", "gene:" + accId);
 265     assertFalse(testee.identifiesSequence(sf, accId));
 266
 267     // exon not valid:
 268     sf = new SequenceFeature("exon", "", 1, 2, 0f, null);
 269     sf.setValue("ID", "gene:" + accId);
 270     assertFalse(testee.identifiesSequence(sf, accId));
 271   }
 272
 273   /**
 274    * Check behaviour of feature colour scheme for EnsemblGene sequences.
 275    * Currently coded to display exon and sequence_variant (or sub-types) only,
 276    * with sequence_variant in red above exon coloured by label.
 277    */
 278   @Test(groups = "Functional")
 279   public void testGetFeatureColourScheme()
 280   {
 281     FeatureSettingsModelI fc = new EnsemblGene().getFeatureColourScheme();
 282     assertTrue(fc.isFeatureDisplayed("exon"));
 283     assertTrue(fc.isFeatureDisplayed("coding_exon")); // subtype of exon
 284     assertTrue(fc.isFeatureDisplayed("sequence_variant"));
 285     assertTrue(fc.isFeatureDisplayed("feature_variant")); // subtype
 286     assertFalse(fc.isFeatureDisplayed("transcript"));
 287     assertEquals(Color.RED, fc.getFeatureColour("sequence_variant")
 288             .getColour());
 289     assertEquals(Color.RED, fc.getFeatureColour("feature_variant")
 290             .getColour());
 291     assertTrue(fc.getFeatureColour("exon").isColourByLabel());
 292     assertTrue(fc.getFeatureColour("coding_exon").isColourByLabel());
 293     assertEquals(1, fc.compare("sequence_variant", "exon"));
 294     assertEquals(-1, fc.compare("exon", "sequence_variant"));
 295     assertEquals(1, fc.compare("feature_variant", "coding_exon"));
 296     assertEquals(-1, fc.compare("coding_exon", "feature_variant"));
 297     assertEquals(1f, fc.getTransparency());
 298   }
 299
 300   @Test(groups = "Network")
 301   public void testGetGeneIds()
 302   {
 303     /*
 304      * ENSG00000158828 gene id PINK1 human
 305      * ENST00000321556 transcript for the same gene - should not be duplicated
 306      * P30419 Uniprot identifier for ENSG00000136448
 307      * ENST00000592782 transcript for Uniprot gene - should not be duplicated
 308      * BRAF - gene name resolvabe (at time of writing) for 6 model species
 309      */
 310     String ids = "ENSG00000158828 ENST00000321556 P30419 ENST00000592782 BRAF";
 311     EnsemblGene testee = new EnsemblGene();
 312     List<String> geneIds = testee.getGeneIds(ids);
 313     assertEquals(8, geneIds.size());
 314     assertTrue(geneIds.contains("ENSG00000158828"));
 315     assertTrue(geneIds.contains("ENSG00000136448"));
 316     assertTrue(geneIds.contains("ENSG00000157764")); // BRAF human
 317     assertTrue(geneIds.contains("ENSMUSG00000002413")); // mouse
 318     assertTrue(geneIds.contains("ENSRNOG00000010957")); // rat
 319     assertTrue(geneIds.contains("ENSXETG00000004845")); // xenopus
 320     assertTrue(geneIds.contains("ENSDARG00000017661")); // zebrafish
 321     assertTrue(geneIds.contains("ENSGALG00000012865")); // chicken
 322   }
 323 }