less duplicated code

Author: slayoo

tests/test_aero_data.py

@@ -4,7 +4,6 @@
 # Author: Sylwester Arabas                                                                         #
 ####################################################################################################
 
-import gc
 import PyPartMC as ppmc
 
 
@@ -20,14 +19,5 @@ def test_ctor():
         assert sut is not None
 
     @staticmethod
-    def test_dtor():
-        # arrange
-        sut = ppmc.AeroData()  # pylint: disable=unused-variable
-        gc.collect()
-
-        # act
-        sut = None
-        gc.collect()
-
-        # assert
-        pass
+    def test_std():
+        pass  # TODO

tests/test_dtors.py

@@ -0,0 +1,22 @@
+import pytest
+import gc
+import PyPartMC as ppmc
+
+
+@pytest.mark.parametrize('instantiate', (
+    pytest.param(lambda : ppmc.GasData(("SO2",)), id='GasData'),
+    pytest.param(lambda : ppmc.AeroData(), id='AeroData'),
+    pytest.param(lambda : ppmc.GasState(), id='GasState')
+))
+def test_dtors(instantiate):
+    # arrange
+    sut = instantiate()  # pylint: disable=unused-variable
+    gc.collect()
+
+    # act
+    sut = None
+    gc.collect()
+
+    # assert
+    pass
+

tests/test_gas_data.py

@@ -4,7 +4,6 @@
 # Author: Sylwester Arabas                                                                         #
 ####################################################################################################
 
-import gc
 import json
 import PyPartMC as ppmc
 
@@ -21,19 +20,6 @@ def test_ctor():
         # assert
         assert sut is not None
 
-    @staticmethod
-    def test_dtor():
-        # arrange
-        sut = ppmc.GasData(("SO2",))  # pylint: disable=unused-variable
-        gc.collect()
-
-        # act
-        sut = None
-        gc.collect()
-
-        # assert
-        pass
-
     @staticmethod
     def test_len():
         # arrange

tests/test_gas_state.py

@@ -7,7 +7,6 @@
 # TODO
 # pylint: disable=unused-variable
 
-import gc
 import pytest
 #import numpy as np
 import PyPartMC as ppmc
@@ -50,19 +49,6 @@ def test_ctor_valid():
         # assert
         # TODO assert isinstance(sut, ppmc.GasState)
 
-    @staticmethod
-    def test_dtor():
-        # arrange
-        sut = ppmc.GasState()
-        gc.collect()
-
-        # act
-        sut = None
-        gc.collect()
-
-        # assert
-        pass
-
     @staticmethod
     def test_len_empty():
         # arrange