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Contents
var dna = require('./nucleotide-count');
describe('DNA', function() {
it('Empty DNA strand has no adenosine', function() {
expect(dna().count('A')).toEqual(0);
});
xit('Repetitive cytidine gets counted', function() {
expect(dna('CCCCC').count('C')).toEqual(5);
});
xit('Counts only thymidine', function() {
expect(dna('GGGGGTAACCCGG').count('T')).toEqual(1);
});
xit('Counts a nucleotide only once', function() {
var acid = dna('CGATTGGG');
acid.count('T');
acid.count('T');
expect(acid.count('T')).toEqual(2);
});
xit('Empty DNS strand has no nucleotides', function() {
var expected = {A: 0, T: 0, C: 0, G: 0};
expect(dna().histogram()).toEqual(expected);
});
xit('Repetitive sequence has only guanosine', function() {
var expected = {A: 0, T: 0, C: 0, G: 8};
expect(dna('GGGGGGGG').histogram()).toEqual(expected);
});
xit('Counts all nucleotides', function() {
var strand = 'AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGATTAAAAAAAGAGTGTCTGATAGCAGC';
var expected = {A: 20, T: 21, C: 12, G: 17};
expect(dna(strand).histogram()).toEqual(expected);
});
xit('Validates DNA', function() {
expect(dna.bind(null, 'JOHNNYAPPLESEED')).toThrow();
});
});
Version data entries
255 entries across 255 versions & 1 rubygems