Merge pull request OpenGenus#3785 from Jay9596/rust_complement_dna

Add Complement DNA in Rust
yanshi1 · Mar 1, 2019 · 2bde260 · 2bde260
2 parents 1a51d90 + 8e374a9
commit 2bde260
Showing 1 changed file with 21 additions and 0 deletions.
diff --git a/code/online_challenges/src/rosalind/complement_dna_strand/complement_dna.rs b/code/online_challenges/src/rosalind/complement_dna_strand/complement_dna.rs
@@ -0,0 +1,21 @@
+fn complement_dna(dna: &str) -> String {
+    dna.chars()
+        .rev()
+        .map(|c| match c {
+            'A' => 'T',
+            'T' => 'A',
+            'C' => 'G',
+            'G' => 'C',
+            _ => ' ',
+        })
+        .collect()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn sample_test() {
+        assert_eq!(complement_dna("AAAACCCGGT"), "ACCGGGTTTT");
+    }
+}