Convert tests to pytests (commaai#1060)

* Convert tests to pytests

* cleanup

* args

* clean

* linter

---------

Co-authored-by: Maxime Desroches <desroches.maxime@gmail.com>

.github/workflows/tests.yml

@@ -22,7 +22,7 @@ jobs:
     - name: Build opendbc
       run: ${{ env.RUN }} "cd ../ && scons -j$(nproc) --minimal"
     - name: Unit tests
-      run: ${{ env.RUN }} "pytest"
+      run: ${{ env.RUN }} "pytest -n logical"
 
   static-analysis:
     name: static analysis

can/tests/test_checksums.py

@@ -1,12 +1,9 @@
-#!/usr/bin/env python3
-import unittest
-
 from opendbc.can.parser import CANParser
 from opendbc.can.packer import CANPacker
 from opendbc.can.tests.test_packer_parser import can_list_to_can_capnp
 
 
-class TestCanChecksums(unittest.TestCase):
+class TestCanChecksums:
 
   def test_honda_checksum(self):
     """Test checksums for Honda standard and extended CAN ids"""
@@ -34,9 +31,5 @@ def test_honda_checksum(self):
       can_strings = [can_list_to_can_capnp(msgs), ]
       parser.update_strings(can_strings)
 
-      self.assertEqual(parser.vl['LKAS_HUD']['CHECKSUM'], std)
-      self.assertEqual(parser.vl['LKAS_HUD_A']['CHECKSUM'], ext)
-
-
-if __name__ == "__main__":
-  unittest.main()
+      assert parser.vl['LKAS_HUD']['CHECKSUM'] == std
+      assert parser.vl['LKAS_HUD_A']['CHECKSUM'] == ext

can/tests/test_dbc_exceptions.py

@@ -1,36 +1,30 @@
-#!/usr/bin/env python3
-
-import unittest
+import pytest
 
 from opendbc.can.parser import CANParser, CANDefine
 from opendbc.can.packer import CANPacker
 from opendbc.can.tests import TEST_DBC
 
 
-class TestCanParserPackerExceptions(unittest.TestCase):
+class TestCanParserPackerExceptions:
   def test_civic_exceptions(self):
     dbc_file = "honda_civic_touring_2016_can_generated"
     dbc_invalid = dbc_file + "abcdef"
     msgs = [("STEERING_CONTROL", 50)]
-    with self.assertRaises(RuntimeError):
+    with pytest.raises(RuntimeError):
       CANParser(dbc_invalid, msgs, 0)
-    with self.assertRaises(RuntimeError):
+    with pytest.raises(RuntimeError):
       CANPacker(dbc_invalid)
-    with self.assertRaises(RuntimeError):
+    with pytest.raises(RuntimeError):
       CANDefine(dbc_invalid)
-    with self.assertRaises(KeyError):
+    with pytest.raises(KeyError):
       CANDefine(TEST_DBC)
 
     parser = CANParser(dbc_file, msgs, 0)
-    with self.assertRaises(RuntimeError):
+    with pytest.raises(RuntimeError):
       parser.update_strings([b''])
 
     # Everything is supposed to work below
     CANParser(dbc_file, msgs, 0)
     CANParser(dbc_file, [], 0)
     CANPacker(dbc_file)
     CANDefine(dbc_file)
-
-
-if __name__ == "__main__":
-  unittest.main()

can/tests/test_dbc_parser.py

@@ -1,16 +1,13 @@
-#!/usr/bin/env python3
-import unittest
-
 from opendbc.can.parser import CANParser
 from opendbc.can.tests import ALL_DBCS
 
 
-class TestDBCParser(unittest.TestCase):
+class TestDBCParser:
   def test_enough_dbcs(self):
     # sanity check that we're running on the real DBCs
-    self.assertGreater(len(ALL_DBCS), 20)
+    assert len(ALL_DBCS) > 20
 
-  def test_parse_all_dbcs(self):
+  def test_parse_all_dbcs(self, subtests):
     """
       Dynamic DBC parser checks:
         - Checksum and counter length, start bit, endianness
@@ -20,9 +17,5 @@ def test_parse_all_dbcs(self):
     """
 
     for dbc in ALL_DBCS:
-      with self.subTest(dbc=dbc):
+      with subtests.test(dbc=dbc):
         CANParser(dbc, [], 0)
-
-
-if __name__ == "__main__":
-  unittest.main()

can/tests/test_define.py

@@ -1,35 +1,26 @@
-#!/usr/bin/env python3
-import unittest
-
 from opendbc.can.can_define import CANDefine
 from opendbc.can.tests import ALL_DBCS
 
 
-class TestCADNDefine(unittest.TestCase):
+class TestCADNDefine:
   def test_civic(self):
 
     dbc_file = "honda_civic_touring_2016_can_generated"
     defs = CANDefine(dbc_file)
 
-    self.assertDictEqual(defs.dv[399], defs.dv['STEER_STATUS'])
-    self.assertDictEqual(defs.dv[399],
-                         {'STEER_STATUS':
-                          {7: 'PERMANENT_FAULT',
-                           6: 'TMP_FAULT',
-                           5: 'FAULT_1',
-                           4: 'NO_TORQUE_ALERT_2',
-                           3: 'LOW_SPEED_LOCKOUT',
-                           2: 'NO_TORQUE_ALERT_1',
-                           0: 'NORMAL'}
-                          }
-                         )
-
-  def test_all_dbcs(self):
+    assert defs.dv[399] == defs.dv['STEER_STATUS']
+    assert defs.dv[399] == {'STEER_STATUS':
+                            {7: 'PERMANENT_FAULT',
+                             6: 'TMP_FAULT',
+                             5: 'FAULT_1',
+                             4: 'NO_TORQUE_ALERT_2',
+                             3: 'LOW_SPEED_LOCKOUT',
+                             2: 'NO_TORQUE_ALERT_1',
+                             0: 'NORMAL'}
+                            }
+
+  def test_all_dbcs(self, subtests):
     # Asserts no exceptions on all DBCs
     for dbc in ALL_DBCS:
-      with self.subTest(dbc=dbc):
+      with subtests.test(dbc=dbc):
         CANDefine(dbc)
-
-
-if __name__ == "__main__":
-  unittest.main()