--- a
+++ b/tests/data/fasta_test.fa
@@ -0,0 +1,4 @@
+>chr1
+ACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGTACCGT
+>chr2
+ACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTNACGTN