Skip invalid TOML and improve test coverage

src/flake8_requirements/checker.py

@@ -196,13 +196,13 @@ def setup(**kw):
                 '__file__': os.path.join(cwd, "setup.py"),
                 '__f8r_setup': setup,
             })
-        except Exception as e:
+        except BaseException as e:
             # XXX: Exception during setup.py evaluation might not necessary
             #      mean "fatal error". This exception might occur if e.g.
             #      we have hijacked local setup() function (due to matching
             #      heuristic for function arguments). Anyway, we shall not
             #      break flake8 execution due to our eval() usage.
-            LOG.exception("Couldn't evaluate setup.py: %s", e)
+            LOG.error("Couldn't evaluate setup.py: %r", e)
             self.redirected = False
 
         # Restore import search path.
@@ -548,7 +548,7 @@ def get_pyproject_toml(cls):
         try:
             with open(os.path.join(cls.root_dir, "pyproject.toml")) as f:
                 return toml.loads(f.read())
-        except IOError as e:
+        except (IOError, toml.TomlDecodeError) as e:
             LOG.debug("Couldn't load project setup: %s", e)
             return {}
 

test/test_checker.py

@@ -32,6 +32,12 @@ def processing_setup_py(self):
         return self.filename == "setup.py"
 
 
+class Flake8OptionManagerMock(dict):
+
+    def add_option(self, name, **kw):
+        self[name] = kw
+
+
 class Flake8Options:
     known_modules = ""
     requirements_file = None
@@ -49,6 +55,15 @@ def check(code, filename="<unknown>", options=None):
 
 class Flake8CheckerTestCase(unittest.TestCase):
 
+    def test_add_options(self):
+        manager = Flake8OptionManagerMock()
+        Flake8Checker.add_options(manager)
+        self.assertEqual(
+            sorted(manager.keys()),
+            ['--known-modules', '--requirements-file',
+             '--requirements-max-depth', '--scan-host-site-packages'],
+        )
+
     def test_stdlib(self):
         errors = check("import os\nfrom unittest import TestCase")
         self.assertEqual(len(errors), 0)
@@ -121,10 +136,10 @@ class Options(Flake8Options):
             type(Flake8Checker.known_host_3rd_parties),
             dict,
         )
-        # Since flake8-requirements (this package) is a plugin for flake8,
-        # it is very likely that onc will have flake8 installed in the host
-        # site-packages. However, that is not the case for all our GitHub
-        # Actions runners, so we can not enforce this assertion.
+        # Since flake8-requirements (this package) is a plugin for flake8, it
+        # is very likely that one will have flake8 installed in the host
+        # site-packages. However, that is not the case for our GitHub Actions
+        # runners, so we can not enforce this assertion.
         if 'flake8' in Flake8Checker.known_host_3rd_parties:
             self.assertEqual(
                 Flake8Checker.known_host_3rd_parties['flake8'],

test/test_pep621.py

@@ -57,6 +57,11 @@ def test_get_pyproject_toml_pep621(self):
             }
             self.assertDictEqual(pep621, expected)
 
+    def test_get_pyproject_toml_invalid(self):
+        content = self.content + "invalid"
+        with mock.patch(builtins_open, mock.mock_open(read_data=content)):
+            self.assertDictEqual(Flake8Checker.get_pyproject_toml_pep621(), {})
+
     def test_1st_party(self):
         with mock.patch(builtins_open, mock.mock_open()) as m:
             m.side_effect = (

test/test_setup.py

@@ -55,6 +55,27 @@ def test_detect_setup(self):
         setup = SetupVisitor(ast.parse(code), "")
         self.assertEqual(setup.redirected, False)
 
+    def test_detect_setup_wrong_num_of_args(self):
+        setup = SetupVisitor(ast.parse("setup(name='A')"), "")
+        self.assertEqual(setup.redirected, False)
+
+    def test_detect_setup_wrong_function(self):
+        setup = SetupVisitor(ast.parse("setup(1, name='A')"), "")
+        self.assertEqual(setup.redirected, False)
+
+    def test_detect_setup_oops(self):
+        setup = SetupVisitor(ast.parse("\n".join((
+            "from .myModule import setup",
+            "setup({})".format(",".join((
+                "name='A'",
+                "version='1'",
+                "author='A'",
+                "packages=['']",
+                "url='URL'",
+            ))),
+        ))), "")
+        self.assertEqual(setup.redirected, False)
+
     def test_get_requirements(self):
         setup = SetupVisitor(ast.parse("setup(**{})".format(str({
             'name': 'A',