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• function test_incremental_indexing

  Comprehensive test function that validates incremental indexing functionality of a document indexing system, including initial indexing, change detection, re-indexing, and force re-indexing scenarios.

  File: /tf/active/vicechatdev/docchat/test_incremental_indexing.py | Lines: 32-207

  testing incremental-indexing document-indexing integration-test file-system

• function modify_test_document

  Modifies the content of a test document file by writing new content to it, with a built-in delay to ensure the file's modification time changes.

  File: /tf/active/vicechatdev/docchat/test_incremental_indexing.py | Lines: 25-29

  testing file-operations file-modification test-utilities mtime

• function create_test_document

  Creates a text file at the specified path with the given content, primarily used for testing purposes.

  File: /tf/active/vicechatdev/docchat/test_incremental_indexing.py | Lines: 20-22

  testing file-creation test-utilities file-io document-creation

• function test_libreoffice_conversion

  Tests LibreOffice's ability to convert a document file to PDF format using headless mode, with timeout protection and comprehensive error reporting.

  File: /tf/active/vicechatdev/docchat/test_problematic_files.py | Lines: 99-159

  libreoffice pdf-conversion document-processing testing subprocess

• function test_docx_file

  Tests the ability to open and read a Microsoft Word (.docx) document file, validating file existence, size, and content extraction capabilities.

  File: /tf/active/vicechatdev/docchat/test_problematic_files.py | Lines: 57-97

  document-testing file-validation docx word-document diagnostic

• function test_pptx_file

  Tests the ability to open and read a PowerPoint (.pptx) file using the python-pptx library, validating file existence, size, and basic slide iteration.

  File: /tf/active/vicechatdev/docchat/test_problematic_files.py | Lines: 17-55

  powerpoint pptx file-validation testing diagnostic

• function test_frontend_files

  A test function that validates the presence of model selection functionality in frontend files (HTML, JavaScript, and CSS) for a document chat application.

  File: /tf/active/vicechatdev/docchat/test_model_selection.py | Lines: 135-169

  testing frontend validation integration-test file-checking

• function test_api_models_endpoint

  A unit test function that validates the structure and content of the /api/models endpoint response, ensuring it contains the correct model configuration data.

  File: /tf/active/vicechatdev/docchat/test_model_selection.py | Lines: 110-132

  testing unit-test api-validation endpoint-testing configuration-validation

• function test_flask_routes

  A test function that validates Flask application routes are properly configured by checking for required endpoints.

  File: /tf/active/vicechatdev/docchat/test_model_selection.py | Lines: 85-107

  testing flask routes validation web-application

• function test_rag_engine

  A test function that validates the RAG engine's ability to correctly instantiate different LLM models (OpenAI, Anthropic, Gemini) based on configuration settings.

  File: /tf/active/vicechatdev/docchat/test_model_selection.py | Lines: 50-82

  testing rag llm model-switching validation

• function test_config

  A test function that validates the presence and correctness of all required configuration settings for a multi-model RAG (Retrieval-Augmented Generation) system.

  File: /tf/active/vicechatdev/docchat/test_model_selection.py | Lines: 9-47

  testing validation configuration unit-test assertion

• class DocumentIndexer

  A class for indexing documents into ChromaDB with support for multiple file formats (PDF, Word, PowerPoint, Excel, text files), smart incremental indexing, and document chunk management.

  File: /tf/active/vicechatdev/docchat/document_indexer.py | Lines: 790-1144

  document-indexing vector-database chromadb embeddings pdf-processing

• class DocChatEmbeddingFunction

  A custom ChromaDB embedding function that generates OpenAI embeddings with automatic text summarization for documents exceeding token limits.

  File: /tf/active/vicechatdev/docchat/document_indexer.py | Lines: 128-227

  embeddings chromadb openai text-processing summarization

• function run_with_timeout

  Executes a function with a specified timeout using threading, raising a TimeoutException if the function exceeds the time limit.

  File: /tf/active/vicechatdev/docchat/document_indexer.py | Lines: 87-125

  timeout threading concurrency execution-control error-handling

• class TimeoutException

  A custom exception class that is raised when an operation exceeds its allocated time limit.

  File: /tf/active/vicechatdev/docchat/document_indexer.py | Lines: 82-84

  exception error-handling timeout custom-exception time-management

• function on_load

  Blueprint initialization hook that loads persisted chat sessions from disk when the DocChat blueprint is registered with the Flask application.

  File: /tf/active/vicechatdev/docchat/blueprint.py | Lines: 341-354

  flask blueprint initialization lifecycle-hook session-management

• function get_available_models

  Flask API endpoint that returns a JSON response containing the list of available LLM models and the default model configured in the application.

  File: /tf/active/vicechatdev/docchat/blueprint.py | Lines: 331-336

  api endpoint flask llm models

• function get_history

  Flask API endpoint that retrieves chat message history for the current user's session from an in-memory chat_sessions dictionary.

  File: /tf/active/vicechatdev/docchat/blueprint.py | Lines: 315-326

  flask api-endpoint chat-history session-management authentication

• function clear_session

  Flask route handler that clears the current user's chat session, deletes associated session data from memory and disk, and creates a new empty session.

  File: /tf/active/vicechatdev/docchat/blueprint.py | Lines: 288-310

  flask session-management chat api-endpoint authentication

• function clear_session_v1

  Clears all messages from a chat session identified by session_id, resets the session's updated timestamp, and persists the changes to disk in a thread-safe manner.

  File: /tf/active/vicechatdev/docchat/app.py | Lines: 264-271

  session-management chat thread-safe persistence state-management