From: gmungoc Date: Tue, 28 Mar 2017 10:59:42 +0000 (+0100) Subject: JAL-2403 further test coverage for ScoreMatrix, min/max getters X-Git-Tag: Release_2_10_2~3^2~105^2~2^2~39 X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=2a9d6da50bb346c1f8cd38f104c958b7e8e6eff0;p=jalview.git JAL-2403 further test coverage for ScoreMatrix, min/max getters --- diff --git a/src/jalview/analysis/scoremodels/ScoreMatrix.java b/src/jalview/analysis/scoremodels/ScoreMatrix.java index c71658b..84e91ae 100644 --- a/src/jalview/analysis/scoremodels/ScoreMatrix.java +++ b/src/jalview/analysis/scoremodels/ScoreMatrix.java @@ -90,6 +90,10 @@ public class ScoreMatrix implements SimilarityScoreModelI, */ private boolean peptide; + private float minValue; + + private float maxValue; + /** * Constructor given a name, symbol alphabet, and matrix of scores for pairs * of symbols. The matrix should be square and of the same size as the @@ -124,6 +128,8 @@ public class ScoreMatrix implements SimilarityScoreModelI, symbolIndex = buildSymbolIndex(alphabet); + findMinMax(); + /* * crude heuristic for now... */ @@ -131,6 +137,31 @@ public class ScoreMatrix implements SimilarityScoreModelI, } /** + * Record the minimum and maximum score values + */ + protected void findMinMax() + { + float min = Float.MAX_VALUE; + float max = -Float.MAX_VALUE; + if (matrix != null) + { + for (float[] row : matrix) + { + if (row != null) + { + for (float f : row) + { + min = Math.min(min, f); + max = Math.max(max, f); + } + } + } + } + minValue = min; + maxValue = max; + } + + /** * Returns an array A where A[i] is the position in the alphabet array of the * character whose value is i. For example if the alphabet is { 'A', 'D', 'X' * } then A['D'] = A[68] = 1. @@ -281,6 +312,12 @@ public class ScoreMatrix implements SimilarityScoreModelI, { return matrix[cIndex][dIndex]; } + + /* + * one or both symbols not found in the matrix + * note: a possible strategy here would be to return the minimum + * matrix value if c != d + */ return 0; } @@ -532,4 +569,14 @@ public class ScoreMatrix implements SimilarityScoreModelI, { description = desc; } + + public float getMinimumScore() + { + return minValue; + } + + public float getMaximumScore() + { + return maxValue; + } } diff --git a/test/jalview/analysis/scoremodels/ScoreMatrixTest.java b/test/jalview/analysis/scoremodels/ScoreMatrixTest.java index 24db894..9c9e917 100644 --- a/test/jalview/analysis/scoremodels/ScoreMatrixTest.java +++ b/test/jalview/analysis/scoremodels/ScoreMatrixTest.java @@ -1,8 +1,11 @@ package jalview.analysis.scoremodels; import static org.testng.Assert.assertEquals; +import static org.testng.Assert.assertFalse; +import static org.testng.Assert.assertNotEquals; import static org.testng.Assert.assertNotNull; import static org.testng.Assert.assertNotSame; +import static org.testng.Assert.assertNull; import static org.testng.Assert.assertTrue; import static org.testng.internal.junit.ArrayAsserts.assertArrayEquals; @@ -159,7 +162,7 @@ public class ScoreMatrixTest assertEquals(sm.getMatrixIndex('X'), 22); assertEquals(sm.getMatrixIndex('x'), 22); assertEquals(sm.getMatrixIndex('-'), 23); - assertEquals(sm.getMatrixIndex('*'), 24); + assertEquals(sm.getMatrixIndex('*'), -1); assertEquals(sm.getMatrixIndex('.'), -1); assertEquals(sm.getMatrixIndex(' '), -1); assertEquals(sm.getMatrixIndex('?'), -1); @@ -261,6 +264,12 @@ public class ScoreMatrixTest .toCharArray(), sm.getMatrix()); assertTrue(sm.equals(sm2)); assertEquals(sm.hashCode(), sm2.hashCode()); + + sm2 = ScoreModels.getInstance().getPam250(); + assertFalse(sm.equals(sm2)); + assertNotEquals(sm.hashCode(), sm2.hashCode()); + + assertFalse(sm.equals("hello")); } /** @@ -414,6 +423,12 @@ public class ScoreMatrixTest { ScoreMatrix sm = ScoreModels.getInstance().getBlosum62(); + assertTrue(sm.isProtein()); + assertFalse(sm.isDNA()); + assertNull(sm.getDescription()); + sm.setDescription("BLOSUM62"); + assertEquals(sm.getDescription(), "BLOSUM62"); + /* * verify expected scores against ARNDCQEGHILKMFPSTWYVBZX * scraped from https://www.ncbi.nlm.nih.gov/Class/FieldGuide/BLOSUM62.txt @@ -517,4 +532,62 @@ public class ScoreMatrixTest assertEquals(sm.getGapIndex(), 1); } + + @Test(groups = "Functional") + public void testGetPairwiseScore() + { + float[][] scores = new float[2][]; + scores[0] = new float[] { 1f, 2f }; + scores[1] = new float[] { 4f, 5f }; + ScoreMatrix sm = new ScoreMatrix("Test", new char[] { 'A', 'B' }, + scores); + assertEquals(sm.getPairwiseScore('A', 'A'), 1f); + assertEquals(sm.getPairwiseScore('A', 'a'), 1f); + assertEquals(sm.getPairwiseScore('A', 'B'), 2f); + assertEquals(sm.getPairwiseScore('b', 'a'), 4f); + assertEquals(sm.getPairwiseScore('B', 'b'), 5f); + + /* + * unknown symbols currently score zero + */ + assertEquals(sm.getPairwiseScore('A', '-'), 0f); + assertEquals(sm.getPairwiseScore('-', '-'), 0f); + assertEquals(sm.getPairwiseScore('Q', 'W'), 0f); + + /* + * symbols not in basic ASCII set score zero + */ + char c = (char) 200; + assertEquals(sm.getPairwiseScore('Q', c), 0f); + assertEquals(sm.getPairwiseScore(c, 'Q'), 0f); + } + + @Test(groups = "Functional") + public void testGetMinimumScore() + { + ScoreMatrix sm = ScoreModels.getInstance().getBlosum62(); + assertEquals(sm.getMinimumScore(), -4f); + } + + @Test(groups = "Functional") + public void testGetMaximumScore() + { + ScoreMatrix sm = ScoreModels.getInstance().getBlosum62(); + assertEquals(sm.getMaximumScore(), 11f); + } + + @Test(groups = "Functional") + public void testOutputMatrix_html() + { + float[][] scores = new float[2][]; + scores[0] = new float[] { 1f, 2f }; + scores[1] = new float[] { 4f, -5.3E-10f }; + ScoreMatrix sm = new ScoreMatrix("Test", "AB".toCharArray(), scores); + String html = sm.outputMatrix(true); + String expected = "\n" + + "\n" + + "\n" + + "
 A  B 
A1.02.0
B4.0-5.3E-10
"; + assertEquals(html, expected); + } }