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Contents
import Hamming from './hamming';
describe('Hamming', () => {
const hamming = new Hamming();
test('no difference between identical strands', () => {
expect(hamming.compute('A', 'A')).toEqual(0);
});
xtest('complete hamming distance for single nucleotide strand', () => {
expect(hamming.compute('A', 'G')).toEqual(1);
});
xtest('complete hamming distance for small strand', () => {
expect(hamming.compute('AG', 'CT')).toEqual(2);
});
xtest('small hamming distance', () => {
expect(hamming.compute('AT', 'CT')).toEqual(1);
});
xtest('small hamming distance in longer strand', () => {
expect(hamming.compute('GGACG', 'GGTCG')).toEqual(1);
});
xtest('large hamming distance', () => {
expect(hamming.compute('GATACA', 'GCATAA')).toEqual(4);
});
xtest('hamming distance in very long strand', () => {
expect(hamming.compute('GGACGGATTCTG', 'AGGACGGATTCT')).toEqual(9);
});
xtest('throws error when strands are not equal length', () => {
expect(() => hamming.compute('GGACGGATTCTG', 'AGGAC')).toThrow(
new Error('DNA strands must be of equal length.'),
);
});
});
Version data entries
185 entries across 185 versions & 1 rubygems