Refactor test cases for improved readability and consistency

- Updated test functions in various test files to enhance code clarity by formatting long lines and improving indentation.
- Adjusted assertions to use multi-line formatting for better readability.
- Added new test cases for theme settings API to ensure proper functionality.
- Ensured consistent use of line breaks and spacing across test files for uniformity.

scripts/format_docs_md.py

@@ -2,16 +2,17 @@
 
 This is intentionally small and non-destructive; it touches only files under docs/ and makes safe changes.
 """
+
 import re
 from pathlib import Path
 
 DOCS = Path(__file__).resolve().parents[1] / "docs"
 
 CODE_LANG_HINTS = {
-    'powershell': ('powershell',),
-    'bash': ('bash', 'sh'),
-    'sql': ('sql',),
-    'python': ('python',),
+    "powershell": ("powershell",),
+    "bash": ("bash", "sh"),
+    "sql": ("sql",),
+    "python": ("python",),
 }
 
 
@@ -19,48 +20,60 @@ def add_code_fence_language(match):
     fence = match.group(0)
     inner = match.group(1)
     # If language already present, return unchanged
-    if fence.startswith('```') and len(fence.splitlines()[0].strip()) > 3:
+    if fence.startswith("```") and len(fence.splitlines()[0].strip()) > 3:
         return fence
     # Try to infer language from the code content
-    code = inner.strip().splitlines()[0] if inner.strip() else ''
-    lang = ''
-    if code.startswith('$') or code.startswith('PS') or code.lower().startswith('powershell'):
-        lang = 'powershell'
-    elif code.startswith('#') or code.startswith('import') or code.startswith('from'):
-        lang = 'python'
-    elif re.match(r'^(select|insert|update|create)\b', code.strip(), re.I):
-        lang = 'sql'
-    elif code.startswith('git') or code.startswith('./') or code.startswith('sudo'):
-        lang = 'bash'
+    code = inner.strip().splitlines()[0] if inner.strip() else ""
+    lang = ""
+    if (
+        code.startswith("$")
+        or code.startswith("PS")
+        or code.lower().startswith("powershell")
+    ):
+        lang = "powershell"
+    elif (
+        code.startswith("#")
+        or code.startswith("import")
+        or code.startswith("from")
+    ):
+        lang = "python"
+    elif re.match(r"^(select|insert|update|create)\b", code.strip(), re.I):
+        lang = "sql"
+    elif (
+        code.startswith("git")
+        or code.startswith("./")
+        or code.startswith("sudo")
+    ):
+        lang = "bash"
     if lang:
-        return f'```{lang}\n{inner}\n```'
+        return f"```{lang}\n{inner}\n```"
     return fence
 
 
 def normalize_file(path: Path):
-    text = path.read_text(encoding='utf-8')
+    text = path.read_text(encoding="utf-8")
     orig = text
     # Trim trailing whitespace and ensure single trailing newline
-    text = '\n'.join(line.rstrip() for line in text.splitlines()) + '\n'
+    text = "\n".join(line.rstrip() for line in text.splitlines()) + "\n"
     # Ensure first non-empty line is H1
     lines = text.splitlines()
     for i, ln in enumerate(lines):
         if ln.strip():
-            if not ln.startswith('#'):
-                lines[i] = '# ' + ln
+            if not ln.startswith("#"):
+                lines[i] = "# " + ln
             break
-    text = '\n'.join(lines) + '\n'
+    text = "\n".join(lines) + "\n"
     # Add basic code fence languages where missing (simple heuristic)
-    text = re.sub(r'```\n([\s\S]*?)\n```', add_code_fence_language, text)
+    text = re.sub(r"```\n([\s\S]*?)\n```", add_code_fence_language, text)
     if text != orig:
-        path.write_text(text, encoding='utf-8')
+        path.write_text(text, encoding="utf-8")
         return True
     return False
 
 
 def main():
     changed = []
-    for p in DOCS.rglob('*.md'):
+    for p in DOCS.rglob("*.md"):
         if p.is_file():
             try:
                 if normalize_file(p):
@@ -68,12 +81,12 @@ def main():
             except Exception as e:
                 print(f"Failed to format {p}: {e}")
     if changed:
-        print('Formatted files:')
+        print("Formatted files:")
         for c in changed:
-            print(' -', c)
+            print(" -", c)
     else:
-        print('No formatting changes required.')
+        print("No formatting changes required.")
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()