fix: fixing a failure in tests when there is a ratelimit in the public API, fixing some expects in tests, adding context managers in tests

Author: mdevolde

language_tool_python/server.py

@@ -23,7 +23,7 @@
     parse_url, get_locale_language,
     get_language_tool_directory, get_server_cmd,
     FAILSAFE_LANGUAGE, startupinfo,
-    LanguageToolError, ServerError, PathError,
+    LanguageToolError, ServerError, PathError, RateLimitError,
     kill_process_force
 )
 
@@ -485,6 +485,11 @@ def _query_server(
                             )
                             print(response)
                             print(response.content)
+                        if response.status_code == 426:
+                            raise RateLimitError(
+                                'You have exceeded the rate limit for the free '
+                                'LanguageTool API. Please try again later.'
+                            )
                         raise LanguageToolError(response.content.decode())
             except (IOError, http.client.HTTPException) as e:
                 if self._remote is False:

language_tool_python/utils.py

@@ -73,6 +73,15 @@ class PathError(LanguageToolError):
     pass
 
 
+class RateLimitError(LanguageToolError):
+    """
+    Exception raised for errors related to rate limiting in the LanguageTool server.
+    This exception is a subclass of `LanguageToolError` and is used to indicate
+    issues such as exceeding the allowed number of requests to the public API without a key.
+    """
+    pass
+
+
 def parse_url(url_str: str) -> str:
     """
     Parse the given URL string and ensure it has a scheme.