added methyl_acrylate test

Author: richardjgowers

foyer/tests/implemented_trappe_tests.txt

@@ -13,3 +13,4 @@ aldehyde_1
 aldehyde_2
 aldehyde_3
 aldehyde_4
+methyl_acrylate

foyer/tests/test_trappe.py

@@ -47,7 +47,7 @@ def find_correctly_implemented(self):
 
     @pytest.mark.parametrize('mol_name', correctly_implemented)
     def test_atomtyping(self, mol_name, testfiles_dir=TRAPPE_TESTFILES_DIR):
-        files = glob.glob(os.path.join(testfiles_dir, mol_name, '*'))
+        files = glob.glob(os.path.join(testfiles_dir, mol_name, '*.mol2'))
         for mol_file in files:
             _, ext = os.path.splitext(mol_file)
             mol2_path = os.path.join(testfiles_dir, mol_name, mol_file)