✅ unit test patching & checkdependencies modules

- tests/test_patching.py: tests covering platform detection,
  architecture checks, API level comparisons, version checking, and
  logical conjunctions used in recipe patch conditionals

- tests/test_checkdependencies.py: tests covering module import
  verification, version requirement checking, and environment variable
  handling

Author: AndreMiras

tests/test_checkdependencies.py

@@ -0,0 +1,195 @@
+import sys
+from unittest import mock
+
+from pythonforandroid import checkdependencies
+
+
+class TestCheckPythonDependencies:
+    """Test check_python_dependencies function."""
+
+    @mock.patch('pythonforandroid.checkdependencies.import_module')
+    def test_all_modules_present(self, mock_import):
+        """Test that check_python_dependencies completes when all modules are present."""
+        # Mock all required modules
+        mock_colorama = mock.Mock()
+        mock_colorama.__version__ = '0.4.0'
+        mock_sh = mock.Mock()
+        mock_sh.__version__ = '1.12'
+        mock_appdirs = mock.Mock()
+        mock_jinja2 = mock.Mock()
+
+        def import_side_effect(name):
+            if name == 'colorama':
+                return mock_colorama
+            elif name == 'sh':
+                return mock_sh
+            elif name == 'appdirs':
+                return mock_appdirs
+            elif name == 'jinja2':
+                return mock_jinja2
+            raise ImportError(f"No module named '{name}'")
+
+        mock_import.side_effect = import_side_effect
+
+        with mock.patch.object(sys, 'modules', {
+            'colorama': mock_colorama,
+            'sh': mock_sh,
+            'appdirs': mock_appdirs,
+            'jinja2': mock_jinja2
+        }):
+            checkdependencies.check_python_dependencies()
+
+    @mock.patch('builtins.exit')
+    @mock.patch('builtins.print')
+    @mock.patch('pythonforandroid.checkdependencies.import_module')
+    def test_missing_module_without_version(self, mock_import, mock_print, mock_exit):
+        """Test error message when module without version requirement is missing."""
+        modules_dict = {}
+
+        def import_side_effect(name):
+            if name == 'appdirs':
+                raise ImportError(f"No module named '{name}'")
+            mock_mod = mock.Mock()
+            mock_mod.__version__ = '1.0'
+            modules_dict[name] = mock_mod
+            return mock_mod
+
+        mock_import.side_effect = import_side_effect
+
+        with mock.patch.object(sys, 'modules', modules_dict):
+            checkdependencies.check_python_dependencies()
+
+        # Verify error message was printed
+        error_calls = [str(call) for call in mock_print.call_args_list]
+        assert any('appdirs' in call and 'ERROR' in call for call in error_calls)
+        mock_exit.assert_called_once_with(1)
+
+    @mock.patch('builtins.exit')
+    @mock.patch('builtins.print')
+    @mock.patch('pythonforandroid.checkdependencies.import_module')
+    def test_missing_module_with_version(self, mock_import, mock_print, mock_exit):
+        """Test error message when module with version requirement is missing."""
+        modules_dict = {}
+
+        def import_side_effect(name):
+            if name == 'colorama':
+                raise ImportError(f"No module named '{name}'")
+            mock_mod = mock.Mock()
+            mock_mod.__version__ = '1.0'
+            modules_dict[name] = mock_mod
+            return mock_mod
+
+        mock_import.side_effect = import_side_effect
+
+        with mock.patch.object(sys, 'modules', modules_dict):
+            checkdependencies.check_python_dependencies()
+
+        # Verify error message includes version requirement
+        error_calls = [str(call) for call in mock_print.call_args_list]
+        assert any('colorama' in call and '0.3.3' in call for call in error_calls)
+        mock_exit.assert_called_once_with(1)
+
+    @mock.patch('builtins.exit')
+    @mock.patch('builtins.print')
+    @mock.patch('pythonforandroid.checkdependencies.import_module')
+    def test_module_version_too_old(self, mock_import, mock_print, mock_exit):
+        """Test error when module version is too old."""
+        mock_colorama = mock.Mock()
+        mock_colorama.__version__ = '0.2.0'  # Too old, needs 0.3.3
+        modules_dict = {'colorama': mock_colorama}
+
+        def import_side_effect(name):
+            if name == 'colorama':
+                return mock_colorama
+            mock_mod = mock.Mock()
+            mock_mod.__version__ = '1.0'
+            modules_dict[name] = mock_mod
+            return mock_mod
+
+        mock_import.side_effect = import_side_effect
+
+        with mock.patch.object(sys, 'modules', modules_dict):
+            checkdependencies.check_python_dependencies()
+
+        # Verify error message about version
+        error_calls = [str(call) for call in mock_print.call_args_list]
+        assert any('version' in call.lower() and 'colorama' in call for call in error_calls)
+        mock_exit.assert_called_once_with(1)
+
+    @mock.patch('pythonforandroid.checkdependencies.import_module')
+    def test_module_version_acceptable(self, mock_import):
+        """Test that acceptable versions pass."""
+        mock_colorama = mock.Mock()
+        mock_colorama.__version__ = '0.4.0'  # Newer than 0.3.3
+        mock_sh = mock.Mock()
+        mock_sh.__version__ = '1.12'  # Newer than 1.10
+
+        def import_side_effect(name):
+            if name == 'colorama':
+                return mock_colorama
+            elif name == 'sh':
+                return mock_sh
+            mock_mod = mock.Mock()
+            return mock_mod
+
+        mock_import.side_effect = import_side_effect
+
+        with mock.patch.object(sys, 'modules', {
+            'colorama': mock_colorama,
+            'sh': mock_sh
+        }):
+            # Should complete without error
+            checkdependencies.check_python_dependencies()
+
+    @mock.patch('pythonforandroid.checkdependencies.import_module')
+    def test_module_without_version_attribute(self, mock_import):
+        """Test handling of modules that don't have __version__."""
+        mock_colorama = mock.Mock(spec=[])  # No __version__ attribute
+        modules_dict = {'colorama': mock_colorama}
+
+        def import_side_effect(name):
+            if name == 'colorama':
+                return mock_colorama
+            mock_mod = mock.Mock()
+            modules_dict[name] = mock_mod
+            return mock_mod
+
+        mock_import.side_effect = import_side_effect
+
+        with mock.patch.object(sys, 'modules', modules_dict):
+            # Should complete without error (version check is skipped)
+            checkdependencies.check_python_dependencies()
+
+
+class TestCheck:
+    """Test the main check() function."""
+
+    @mock.patch('pythonforandroid.checkdependencies.check_python_dependencies')
+    @mock.patch('pythonforandroid.checkdependencies.check_and_install_default_prerequisites')
+    def test_check_with_skip_prerequisites(self, mock_prereqs, mock_python_deps):
+        """Test check() skips prerequisites when SKIP_PREREQUISITES_CHECK=1."""
+        with mock.patch.dict('os.environ', {'SKIP_PREREQUISITES_CHECK': '1'}):
+            checkdependencies.check()
+
+        mock_prereqs.assert_not_called()
+        mock_python_deps.assert_called_once()
+
+    @mock.patch('pythonforandroid.checkdependencies.check_python_dependencies')
+    @mock.patch('pythonforandroid.checkdependencies.check_and_install_default_prerequisites')
+    def test_check_without_skip(self, mock_prereqs, mock_python_deps):
+        """Test check() runs prerequisites when SKIP_PREREQUISITES_CHECK is not set."""
+        with mock.patch.dict('os.environ', {}, clear=True):
+            checkdependencies.check()
+
+        mock_prereqs.assert_called_once()
+        mock_python_deps.assert_called_once()
+
+    @mock.patch('pythonforandroid.checkdependencies.check_python_dependencies')
+    @mock.patch('pythonforandroid.checkdependencies.check_and_install_default_prerequisites')
+    def test_check_with_skip_set_to_zero(self, mock_prereqs, mock_python_deps):
+        """Test check() runs prerequisites when SKIP_PREREQUISITES_CHECK=0."""
+        with mock.patch.dict('os.environ', {'SKIP_PREREQUISITES_CHECK': '0'}):
+            checkdependencies.check()
+
+        mock_prereqs.assert_called_once()
+        mock_python_deps.assert_called_once()