enable j1939 tests

Author: ebroecker

src/canmatrix/j1939_decoder.py

@@ -15,7 +15,9 @@
 
 @attr.s
 class j1939_decoder(object):
-    string = read_binary(__name__.rpartition('.')[0], "j1939.dbc")
+    #string = read_binary(__name__.rpartition('.')[0], "j1939.dbc")
+    with open( "j1939.dbc", "rb") as fd:
+        string = fd.read()
     j1939_db = canmatrix.formats.loads_flat(
         string, import_type="dbc", dbcImportEncoding="utf8"
     )

tests/test_canmatrix.py

@@ -45,7 +45,7 @@ def test_arbitration_id_is_instance():
     assert frame1.arbitration_id.id == 42
     assert frame2.arbitration_id.id == 0
 
-@pytest.mark.skip(reason="J1939 functionality is only partially implemented and currently breaks test chain")
+#@pytest.mark.skip(reason="J1939 functionality is only partially implemented and currently breaks test chain")
 def test_arbitration_id_j1939_direct_setters():
     arb_id = ArbitrationId(0)
     arb_id.pgn = 0xF1AA

tests/test_dbc.py

@@ -301,7 +301,7 @@ def test_writing_complex_multiplex():
     canmatrix.formats.dump(db, outdbc, "dbc")
     for line in outdbc.getvalue().decode('utf8').split('\n'):
         if "SG_MUL_VAL" in line:
-            return True
+            return 
     assert False
 
 
@@ -318,7 +318,7 @@ def test_defines_with_special_cars():
     matrix = canmatrix.formats.dbc.load(dbc, dbcImportEncoding="utf8")
     assert matrix.frames[0].signals[0].attributes["Accuracy"] == "+/- 10.2 at 55.1%"
 
-@pytest.mark.skip(reason="J1939 functionality is only partially implemented and currently breaks test chain")
+#@pytest.mark.skip(reason="J1939 functionality is only partially implemented and currently breaks test chain")
 def test_j1939_frametype():
     dbc = io.BytesIO(textwrap.dedent(u'''\
     BU_: someOtherEcu

tests/test_j1939_decoder.py

@@ -9,7 +9,7 @@
 
 from canmatrix.ArbitrationId import ArbitrationId
 
-@pytest.mark.skip(reason="J1939 functionality is only partially implemented and currently breaks test chain")
+#@pytest.mark.skip(reason="J1939 functionality is only partially implemented and currently breaks test chain")
 def test_j1939_decoder():
     dbc = io.BytesIO(textwrap.dedent(u'''\
        BO_ 2566856834 CM_Requests: 9 CGW