From 9088dd198a0ac0eb81b1dedadcbce3c6149fc3d6 Mon Sep 17 00:00:00 2001
From: Matt Shirley <mdshw5@gmail.com>
Date: Thu, 21 Nov 2019 15:11:44 -0500
Subject: [PATCH] Add tests from #93 before merging #155

---
 tests/test_feature_bounds_check.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/tests/test_feature_bounds_check.py b/tests/test_feature_bounds_check.py
index ab18448..e9ccdc2 100644
--- a/tests/test_feature_bounds_check.py
+++ b/tests/test_feature_bounds_check.py
@@ -30,6 +30,28 @@ def test_fetch_zero_length(self):
         fasta = Fasta('data/zero_length.fasta')
         b = fasta["B"]
         assert str(b) == ''
+        
+class TestZeroLengthSequenceSubRange(TestCase):
+    def setUp(self):
+        pass
+
+    def tearDown(self):
+        try:
+            os.remove('data/genes.fasta.fai')
+        except EnvironmentError:
+            pass  # some tests may delete this file
+        
+    def test_as_raw_zero_length_subsequence(self):
+        fasta = Fasta('data/genes.fasta', as_raw=True, strict_bounds=True)
+        expect = ''
+        result = fasta['gi|557361099|gb|KF435150.1|'][100:100]
+        assert result == expect
+
+    def test_zero_length_subsequence(self):
+        fasta = Fasta('data/genes.fasta', strict_bounds=True)
+        expect = ''
+        result = fasta['gi|557361099|gb|KF435150.1|'][100:100]
+        assert result.seq == expect
 
 class TestFeatureBoundsCheck:
     def setUp(self):