Add fixtures

test/conftest.py

@@ -1,8 +1,48 @@
 import pytest
-
-from escpos.printer import Dummy
+from escpos.exceptions import DeviceNotFoundError
+from escpos.printer import LP, CupsPrinter, Dummy, File, Network, Serial, Usb, Win32Raw
 
 
 @pytest.fixture
 def driver():
     return Dummy()
+
+
+@pytest.fixture
+def usbprinter():
+    return Usb()
+
+
+@pytest.fixture
+def serialprinter():
+    return Serial()
+
+
+@pytest.fixture
+def networkprinter():
+    return Network()
+
+
+@pytest.fixture
+def fileprinter():
+    return File()
+
+
+@pytest.fixture
+def lpprinter():
+    return LP()
+
+
+@pytest.fixture
+def win32rawprinter():
+    return Win32Raw()
+
+
+@pytest.fixture
+def cupsprinter():
+    return CupsPrinter()
+
+
+@pytest.fixture
+def devicenotfounderror():
+    return DeviceNotFoundError