Function rosalind::dna::count_dna_nucleotides

pub fn count_dna_nucleotides(dna: &str) -> RosalindResult<DNANucleotides>

This function calculates dna nucleotides

Examples

use rosalind::RosalindError::UnknownNucleotide;
use rosalind::dna::*;

let dna = "AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGATTAAAAAAAGAGTGTCTGATAGCAGC";
let dna_nucleotides = DNANucleotides {A: 20, C: 12, G: 17, T: 21};
assert_eq!(count_dna_nucleotides(dna).unwrap(), dna_nucleotides);
assert_eq!(dna_nucleotides.to_string(), "20 12 17 21");
assert_eq!(count_dna_nucleotides("\n").unwrap(), DNANucleotides {A: 0, C: 0, G: 0, T: 0});
assert_eq!(count_dna_nucleotides("Z").unwrap_err(), UnknownNucleotide('Z'));