test(unittest): Rewrite unittests to meet new requirements

tests/test_missing.py

@@ -1,51 +1,149 @@
+from __future__ import annotations
 import os
+import subprocess
 import tempfile
+import shutil
+from pathlib import Path
 
 import pytest
 
 from missing import Missing
 
 
+class File:
+    def __init__(self, name: str):
+        self.name = name
+
+
+class Dir:
+    def __init__(self, name: str = ".", children: list[Dir | File] | None = None):
+        self.name = name
+        self.children: list[Dir | File] = children or []
+
+
+def create_directory_tree(directory: Dir):
+    for child in directory.children:
+        if isinstance(child, Dir):
+            os.mkdir(child.name)
+            os.chdir(child.name)
+            create_directory_tree(child)
+            os.chdir('..')
+        else:
+            with open(child.name, 'w'):
+                pass
+
+
 @pytest.fixture
 def temp_git_folder():
-    # Create a temp git folder so we could conduct the integration test
+    # Create a temp git folder so that we could conduct the integration test
 
     with tempfile.TemporaryDirectory() as tmp_dir:
         os.chdir(tmp_dir)
         with open('.gitignore', 'w') as fout:
-            fout.write('test_ignore.py')
-
-        os.mkdir('tests')
-        os.mkdir(os.path.join('tests', 'ignored'))
-        with open(os.path.join('tests', 'ignored', 'test_ignore.py'), 'w'):
-            pass
-
-        os.mkdir(os.path.join('tests', 'untracked'))
-        with open(os.path.join('tests', 'untracked', 'test_untracked.py'), 'w'):
-            pass
+            lines = [
+                "ignored.py",
+                "ignored_folder/",
+                ".hidden_ignored_folder/",
+            ]
+            fout.write("\n".join(lines))
 
-        os.mkdir(os.path.join('tests', 'staged'))
-        with open(os.path.join('tests', 'staged', 'test_staged.py'), 'w'):
-            pass
+        tree = Dir(
+            children=[
+                Dir("folder1", [
+                    Dir("folder1_1", [
+                        Dir("folder1_1_1", [
+                            File("folder1_1_1.py"),
+                        ]),
+                        Dir("folder1_1_2", [
+                            File("__init__.py"),
+                        ]),
+                    ]),
+                    Dir("folder1_2", [
+                        File("folder1_2.py"),
+                    ]),
+                    Dir("folder_containing_only_ignored_files", [
+                        File("ignored.py"),
+                    ]),
+                    Dir("ignored_folder", [
+                        File("some_ignored_file.py"),
+                    ]),
+                    Dir(".hidden_ignored_folder", [
+                        File("some_ignored_file.py"),
+                    ]),
+                    Dir("empty_folder"),
+                    File("folder1.py"),
+                ]),
+                Dir("folder2", [
+                    Dir("folder2_1", [
+                        File("__init__.py"),
+                    ]),
+                    Dir("folder2_2", [
+                        File("folder2_2.py"),
+                    ]),
+                    File("folder2.py"),
+                    File("__init__.py"),
+                ]),
+                Dir("folder3", [
+                    File("other_languages.js"),
+                ]),
+                Dir("empty_folder"),
+                Dir("ignored_folder", [
+                    File("some_ignored_file.py"),
+                ]),
+                Dir(".hidden_ignored_folder", [
+                    File("some_ignored_file.py"),
+                ]),
+                File("toplevel.py"),
+            ]
+        )
 
-        os.mkdir('data')
-        with open(os.path.join('data', 'user.xml'), 'w'):
-            pass
+        create_directory_tree(tree)
 
-        os.system('git init')
-        os.system('git add %s' % os.path.join('tests', 'staged'))
+        if shutil.which('tree'):
+            subprocess.run(["tree", "-a", "-F", "--dirsfirst"])
+        subprocess.run(["git", "init"])
+        subprocess.run(["git", "add", "-A"])
         yield
 
 
 class TestMissing:
-    def test__obey_gitignore(self, temp_git_folder):
+    def test__default(self, temp_git_folder):
         assert 1 == Missing(exclude=[]).run()
-        assert not os.path.exists('data/__init__.py')
-        assert not os.path.exists('tests/ignored/__init__.py')
-        assert os.path.isfile('tests/untracked/__init__.py')
-        assert os.path.isfile('tests/staged/__init__.py')
-        assert os.path.isfile('tests/__init__.py')
+        p = Path(".")
+        assert not (p / "__init__.py").exists()
+        assert not (p / "folder1" / "folder1_1" / "__init__.py").exists()
+        assert not (p / "ignored_folder" / "__init__.py").exists()
+        assert not (p / ".hidden_ignored_folder" / "__init__.py").exists()
+        assert not (p / "empty_folder" / "__init__.py").exists()
+        assert not (p / "folder1" / "ignored_folder" / "__init__.py").exists()
+        assert not (p / "folder1" / ".hidden_ignored_folder" / "__init__.py").exists()
+        assert not (p / "folder1" / "empty_folder" / "__init__.py").exists()
+        assert not (p / "folder3" / "__init__.py").exists()
+        assert not (p / "folder1" / "folder_containing_only_ignored_files" / "__init__.py").exists()
+        assert (p / "folder1" / "__init__.py").is_file()
+        assert (p / "folder1" / "folder1_1" / "folder1_1_1" / "__init__.py").is_file()
+        assert (p / "folder1" / "folder1_2" / "__init__.py").is_file()
+        assert (p / "folder2" / "folder2_2" / "__init__.py").is_file()
         assert 0 == Missing(exclude=[]).run()
 
     def test__exclude(self, temp_git_folder):
-        assert 0 == Missing(exclude=['tests']).run()
+        exclude = [
+            os.path.join("folder1", "folder1_1"),
+        ]
+        assert 1 == Missing(exclude=exclude).run()
+        p = Path(".")
+        assert not (p / "__init__.py").exists()
+        assert not (p / "folder1" / "folder1_1" / "__init__.py").exists()
+        assert not (p / "ignored_folder" / "__init__.py").exists()
+        assert not (p / ".hidden_ignored_folder" / "__init__.py").exists()
+        assert not (p / "empty_folder" / "__init__.py").exists()
+        assert not (p / "folder1" / "ignored_folder" / "__init__.py").exists()
+        assert not (p / "folder1" / ".hidden_ignored_folder" / "__init__.py").exists()
+        assert not (p / "folder1" / "empty_folder" / "__init__.py").exists()
+        assert not (p / "folder3" / "__init__.py").exists()
+        assert not (p / "folder1" / "folder_containing_only_ignored_files" / "__init__.py").exists()
+        assert not (p / "folder1" / "folder1_1" / "folder1_1_1" / "__init__.py").exists()
+        assert (p / "folder1" / "__init__.py").is_file()
+        assert (p / "folder1" / "folder1_2" / "__init__.py").is_file()
+        assert (p / "folder2" / "folder2_2" / "__init__.py").is_file()
+        assert 0 == Missing(exclude=exclude).run()