Tests: modern PEP8-ify core test modules and methods (#2298)

* rename modules

* rename methods

* add docstrings to the general tests

* add base import stub

* test_base -> bases

* print deprecation warning

* redo 2346

test/webhost/test_file_generation.py

@@ -0,0 +1,36 @@
+"""Tests for successful generation of WebHost cached files. Can catch some other deeper errors."""
+
+import os
+import unittest
+
+import WebHost
+
+
+class TestFileGeneration(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls) -> None:
+        cls.correct_path = os.path.join(os.path.dirname(WebHost.__file__), "WebHostLib")
+        # should not create the folder *here*
+        cls.incorrect_path = os.path.join(os.path.split(os.path.dirname(__file__))[0], "WebHostLib")
+
+    def test_options(self):
+        from WebHostLib.options import create as create_options_files
+        create_options_files()
+        target = os.path.join(self.correct_path, "static", "generated", "configs")
+        self.assertTrue(os.path.exists(target))
+        self.assertFalse(os.path.exists(os.path.join(self.incorrect_path, "static", "generated", "configs")))
+
+        # folder seems fine, so now we try to generate Options based on the default file
+        from WebHostLib.check import roll_options
+        file: os.DirEntry
+        for file in os.scandir(target):
+            if file.is_file() and file.name.endswith(".yaml"):
+                with self.subTest(file=file.name):
+                    with open(file, encoding="utf-8-sig") as f:
+                        for value in roll_options({file.name: f.read()})[0].values():
+                            self.assertTrue(value is True, f"Default Options for template {file.name} cannot be run.")
+
+    def test_tutorial(self):
+        WebHost.create_ordered_tutorials_file()
+        self.assertTrue(os.path.exists(os.path.join(self.correct_path, "static", "generated", "tutorials.json")))
+        self.assertFalse(os.path.exists(os.path.join(self.incorrect_path, "static", "generated", "tutorials.json")))