assertEquals(sm.getPairwiseScore('A', 'A'), 1.1f);
assertEquals(sm.getPairwiseScore('A', 'T'), 1.2f);
assertEquals(sm.getPairwiseScore('a', 'T'), 1.2f); // A/a equivalent
assertEquals(sm.getPairwiseScore('A', 'A'), 1.1f);
assertEquals(sm.getPairwiseScore('A', 'T'), 1.2f);
assertEquals(sm.getPairwiseScore('a', 'T'), 1.2f); // A/a equivalent