Allow to execute some tests with a simulator or with a real rig

To execute the tests with the installed Hamlib use the same long arguments
as rigctl, eg:
 bindings/python/test_rig.py --model {MODEL_NUMBER} --rig-file /dev/ttyUSB0 --serial-speed {BAUD}

To execute the tests from the build tree, add the path to the libraries
that you built, eg. from the root of the build tree:
 PYTHONPATH=bindings/:bindings/.libs/ ...your command...

bindings/python/conftest.py

@@ -0,0 +1,30 @@
+"""Tests of the Python bindings for Hamlib
+"""
+import pytest
+
+def pytest_addoption(parser):
+    # using long options only because short options conflict with pytest's
+    parser.addoption('--model', type=int, default=1,
+                     metavar='ID', help='select radio model number')
+    parser.addoption('--rig-file', default=None,
+                     metavar='DEVICE', help='set device of the radio to operate on')
+    parser.addoption('--serial-speed', type=int, default=0,
+                     metavar='BAUD', help='set serial speed of the serial port')
+    parser.addoption('--hamlib-verbose', action='count', default=0,
+                     help='set verbose mode, cumulative')
+
+@pytest.fixture
+def model(request):
+    return request.config.getoption("--model")
+
+@pytest.fixture
+def rig_file(request):
+    return request.config.getoption("--rig-file")
+
+@pytest.fixture
+def serial_speed(request):
+    return request.config.getoption("--serial-speed")
+
+@pytest.fixture
+def hamlib_verbose(request):
+    return request.config.getoption("--hamlib-verbose")

bindings/python/test_rig.py

@@ -5,20 +5,18 @@ Running this script directly will use the installed bindings.
 For an in-tree run use "make check", or set PYTHONPATH to point to
 the directories containing Hamlib.py and _Hamlib.so.
 """
-from pytest import raises
+import pytest
 
 import Hamlib
 
 Hamlib.rig_set_debug(Hamlib.RIG_DEBUG_NONE)
 
-RIG_MODEL = Hamlib.RIG_MODEL_DUMMY
-
 class TestClass:
     """Container class for tests"""
 
-    def test_without_open(self):
+    def test_without_open(self, model):
         """Call all the methods that do not depend on open()"""
-        rig = Hamlib.Rig(RIG_MODEL)
+        rig = Hamlib.Rig(model)
         assert rig is not None
         assert rig.do_exception == 0
         assert rig.error_status == Hamlib.RIG_OK
@@ -35,17 +33,22 @@ class TestClass:
         assert isinstance(conf, str)
         assert rig.set_conf("mcfg", "foo") is None
         conf = rig.get_conf("mcfg")
-        assert conf == "foo"
+        if model == Hamlib.RIG_MODEL_DUMMY:
+            assert conf == "foo"
+        else:
+            assert conf == ""
 
         assert rig.token_lookup("") is None
 
 
-    def test_with_open(self):
+    def test_with_open(self, model, rig_file, serial_speed):
         """Call all the methods that depend on open()"""
-        rig = Hamlib.Rig(RIG_MODEL)
+        rig = Hamlib.Rig(model)
         assert rig is not None
 
         assert rig.state.comm_state == 0
+        assert rig.set_conf("rig_pathname", rig_file) is None
+        assert rig.set_conf("serial_speed", str(serial_speed)) is None
         assert rig.open() is None
         assert rig.state.comm_state == 1
         info = rig.get_info()
@@ -70,9 +73,10 @@ class TestClass:
         assert info is None
 
 
-    def test_misc(self):
+    @pytest.mark.skipif('config.getoption("model") != Hamlib.RIG_MODEL_DUMMY')
+    def test_misc(self, model):
         """Just call all the methods"""
-        rig = Hamlib.Rig(RIG_MODEL)
+        rig = Hamlib.Rig(model)
         assert rig is not None
 
         assert rig.close() is None
@@ -213,9 +217,10 @@ class TestClass:
         assert rig.vfo_op(0, 0) is None
 
 
-    def test_object_creation(self):
+    @pytest.mark.skipif('config.getoption("model") != Hamlib.RIG_MODEL_DUMMY')
+    def test_object_creation(self, model):
         """Create all objects available"""
-        rig = Hamlib.Rig(RIG_MODEL)
+        rig = Hamlib.Rig(model)
         assert rig is not None
 
         assert isinstance(rig.caps, Hamlib.rig_caps)