--- a
+++ b/third_party/nucleus/testdata/unindexed.fasta
@@ -0,0 +1,10 @@
+>chrM
+GATCACAGGTCTATCACCCTATTaaCCACTCACGGGAGCTCTCCATGCAT
+TTGGTATTTTCGTCTGGGGGGTGTGCACGCGATAGCATTGCGAGACGCTG
+>chr1 single_word_description
+ACCACCATCCTCCGTGAAATCAATATCCCGCACAAGAGTGCTACTCTCCT
+AAATCCCTTCTCGTCCCCATGGATGA
+>chr2 multi-word description is here
+CGCTNCGGGCCCATAACACTTGGGGGTAGCTAAAGTGAACTGTATCCGAC
+ATCTGGTTCCTACTTCAGGGCCATAAAGCCTAAATAGCCCACACGTTCCC
+CTTAAATAAGACATCACGATG