def test_file_not_found(self):
"""Validation: test when a file is not found."""
from natcap.invest import validation
filepath = os.path.join(self.workspace_dir, 'file.txt')
error_msg = validation.check_file(filepath)
self.assertTrue('File not found' in error_msg)
def test_file_exists(self):
"""Validation: test that a file exists."""
from natcap.invest import validation
filepath = os.path.join(self.workspace_dir, 'file.txt')
with open(filepath, 'w') as new_file:
new_file.write("Here's some text.")
self.assertEqual(None, validation.check_file(filepath))