adding tests

.github/workflows/python-package.yml

@@ -37,5 +37,5 @@ jobs:
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
     - name: Test with pytest
       run: |
-        python setup.py install
-        pytest
+        python -m pip install .
+        python test/pytest.py

test/test_data/genomes.txt

@@ -0,0 +1,6 @@
+##ft	=   File type (fa:fasta/cl:chromosome_length, default = fa. cl files are fasters)
+##lc	=	line colour
+##lw	=	line width
+#file	name	tags
+tair10_chr4.fa.gz.fai	col-0	ft:cl;lw:1.5
+ler_chr4.fa.gz.fai	ler	ft:cl;lw:1.5