+
+ /**
+ * Tests for percentage identity variants where the longer length of two
+ * sequences is used
+ */
+ @Test(groups = "Functional")
+ public void testcomputeSimilarity_matchLongestSequence()
+ {
+ // TODO params.matchGaps() is not used for ScoreMatrix
+ // - includeGaps is sufficient (there is no denominator)
+ // ==> bespoke parameters only 3 booleans?
+ /*
+ * for now, using space for gap to match callers of
+ * AlignmentView.getSequenceStrings()
+ * may change this to '-' (with corresponding change to matrices)
+ */
+ String s1 = "FR K S";
+ String s2 = "FS L";
+ ScoreMatrix blosum = ScoreModels.getInstance().getBlosum62();
+
+ /*
+ * score gap-gap and gap-char
+ * shorter sequence treated as if with trailing gaps
+ * score = F^F + R^S + -^- + K^- + -^L + S^-
+ * = 6 + -1 + 1 + -4 + -4 + -4 = -6
+ */
+ SimilarityParamsI params = new SimilarityParams(true, true, true, false);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), -6d);
+ // matchGap (arg2) is ignored:
+ params = new SimilarityParams(true, false, true, false);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), -6d);
+
+ /*
+ * score gap-char but not gap-gap
+ * score = F^F + R^S + 0 + K^- + -^L + S^-
+ * = 6 + -1 + 0 + -4 + -4 + -4 = -7
+ */
+ params = new SimilarityParams(false, true, true, false);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), -7d);
+ // matchGap (arg2) is ignored:
+ params = new SimilarityParams(false, false, true, false);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), -7d);
+
+ /*
+ * score gap-gap but not gap-char
+ * score = F^F + R^S + -^- + 0 + 0 + 0
+ * = 6 + -1 + 1 = 6
+ */
+ params = new SimilarityParams(true, false, false, false);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), 6d);
+ // matchGap (arg2) is ignored:
+ params = new SimilarityParams(true, true, false, false);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), 6d);
+
+ /*
+ * score neither gap-gap nor gap-char
+ * score = F^F + R^S + 0 + 0 + 0 + 0
+ * = 6 + -1 = 5
+ */
+ params = new SimilarityParams(false, false, false, false);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), 5d);
+ // matchGap (arg2) is ignored:
+ params = new SimilarityParams(false, true, false, false);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), 5d);
+ }
+
+ /**
+ * Tests for percentage identity variants where only the shorter length of two
+ * sequences is used
+ */
+ @Test(groups = "Functional")
+ public void testcomputeSimilarity_matchShortestSequence()
+ {
+ // TODO params.matchGaps() is not used for ScoreMatrix
+ // - includeGaps is sufficient (there is no denominator)
+ // ==> bespoke parameters only 3 booleans?
+ /*
+ * for now, using space for gap to match callers of
+ * AlignmentView.getSequenceStrings()
+ * may change this to '-' (with corresponding change to matrices)
+ */
+ String s1 = "FR K S";
+ String s2 = "FS L";
+ ScoreMatrix blosum = ScoreModels.getInstance().getBlosum62();
+
+ /*
+ * score gap-gap and gap-char
+ * shorter sequence treated as if with trailing gaps
+ * score = F^F + R^S + -^- + K^- + -^L
+ * = 6 + -1 + 1 + -4 + -4 = -2
+ */
+ SimilarityParamsI params = new SimilarityParams(true, true, true, true);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), -2d);
+ // matchGap (arg2) is ignored:
+ params = new SimilarityParams(true, false, true, true);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), -2d);
+
+ /*
+ * score gap-char but not gap-gap
+ * score = F^F + R^S + 0 + K^- + -^L
+ * = 6 + -1 + 0 + -4 + -4 = -3
+ */
+ params = new SimilarityParams(false, true, true, true);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), -3d);
+ // matchGap (arg2) is ignored:
+ params = new SimilarityParams(false, false, true, true);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), -3d);
+
+ /*
+ * score gap-gap but not gap-char
+ * score = F^F + R^S + -^- + 0 + 0
+ * = 6 + -1 + 1 = 6
+ */
+ params = new SimilarityParams(true, false, false, true);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), 6d);
+ // matchGap (arg2) is ignored:
+ params = new SimilarityParams(true, true, false, true);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), 6d);
+
+ /*
+ * score neither gap-gap nor gap-char
+ * score = F^F + R^S + 0 + 0 + 0
+ * = 6 + -1 = 5
+ */
+ params = new SimilarityParams(false, false, false, true);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), 5d);
+ // matchGap (arg2) is ignored:
+ params = new SimilarityParams(false, true, false, true);
+ assertEquals(blosum.computeSimilarity(s1, s2, params), 5d);
+ }