Add Python wrapper tests

Author: parham-k

.gitignore

@@ -1,3 +1,4 @@
 /install/
 /__build-compile/
 /Doxyfile.bak
+__pycache__/

scripts/test-wrappers

@@ -9,5 +9,6 @@ set -e
 
 cd "${MESON_SOURCE_ROOT}"
 
-cd install/lib/btllib/python
-python3 -c 'import btllib; nt = btllib.NtHash("ACTG", 2, 3); nt.roll(); b = btllib.BloomFilter(1024, 2); b.insert(nt.hashes())'
+export PYTHONPATH="$(pwd)/install/lib/btllib/python"
+cd tests/python
+python -m unittest

tests/python/single_seq.fa

@@ -0,0 +1,2 @@
+>1
+CGCGTGAAAGCAAAACAAGA

tests/python/test_bloom_filter.py

@@ -0,0 +1,10 @@
+import btllib
+import unittest
+
+class BloomFilterTests(unittest.TestCase):
+    
+    def test_seq_insertion(self):
+        seq, k = 'AGTCATCGACTGATGC', 5
+        bf = btllib.KmerBloomFilter(1024, 3, k)
+        bf.insert(seq)
+        self.assertEqual(bf.contains('TCATC'), 1)

tests/python/test_seq_reader.py

@@ -0,0 +1,16 @@
+import os
+import btllib
+import unittest
+
+
+class SeqReaderTests(unittest.TestCase):
+
+    def setUp(self):
+        self.base_dir = os.path.dirname(__file__)
+
+    def test_seq_reader_single_seq(self):
+        seq = 'CGCGTGAAAGCAAAACAAGA'
+        path = os.path.join(self.base_dir, 'single_seq.fa')
+        with btllib.SeqReader(path, btllib.SeqReaderFlag.SHORT_MODE) as reader:
+            read = [record.seq for record in reader]
+        self.assertListEqual([seq], read)