Model Card for TestGen-Dart v0.2 (GGUF Version)

This model card provides information about TestGen-Dart v0.2 (GGUF Version), a fine-tuned version of Meta's Code Llama 13B model, optimized for generating unit tests in Dart for mobile applications. This GGUF-quantized model is designed to run efficiently with frameworks like LLMStudio and llama.cpp, enabling deployment on resource-constrained hardware while maintaining robust performance.

Model Details

Model Description

TestGen-Dart v0.2 is a fine-tuned version of Code Llama 13B, specifically adapted for generating unit test cases for Dart code. The GGUF quantization enables its use on lightweight, consumer-grade systems without significant performance loss.

Developed by: Jacob Hoffmann, Demian Frister (Karlsruhe Institute of Technology - KIT, AIFB-BIS)
Funded by: Helmholtz Association's Initiative and Networking Fund on the HAICORE@FZJ partition
Shared by: Jacob Hoffmann, Demian Frister
Model type: Fine-tuned Code Llama 13B for test generation in Dart
Language(s): English
License: LLaMA 2 Community License
Finetuned from model: Meta's Code Llama 13B

Model Sources

Repository: GitHub Repository (placeholder)
Paper: "Generating Software Tests for Mobile Applications Using Fine-Tuned Large Language Models" (published in AST '24)
Demo: Coming soon

Uses

Direct Use

The model can be used in a zero-shot setting with llama.cpp or LLMStudio to generate unit tests in Dart. Provide the class code as input, and the model outputs structured unit tests using Dart's test package.

Downstream Use

This model is suitable for integration into developer tools, IDE extensions, or continuous integration pipelines to automate test generation for Dart-based applications.

Out-of-Scope Use

Do not use this model for tasks unrelated to Dart test generation.
Avoid using this model to improve or train other LLMs not based on LLaMA or its derivatives, per the LLaMA 2 Community License.
Misuse for malicious purposes, such as generating incorrect or harmful test cases, is prohibited.

Running the GGUF Model with llama.cpp

To use this GGUF quantized model with llama.cpp:

Clone the llama.cpp repository and build the binaries:

git clone https://github.com/ggerganov/llama.cpp
cd llama.cpp
make

Place the GGUF file in the models directory:

mkdir -p models/testgen-dart-v0.2
mv /path/to/CodeLlama-13B-TestGen-Dart_v0.2.gguf models/testgen-dart-v0.2/

Run the model:

./main -m models/testgen-dart-v0.2/CodeLlama-13B-TestGen-Dart_v0.2.gguf --prompt "Generate unit tests in Dart for the following class:\nclass Calculator { int add(int a, int b) { return a + b; } }"

Training Details

Training Data

The fine-tuning dataset consists of 16,252 Dart code-test pairs extracted from open-source GitHub repositories using Google BigQuery. The data was subjected to quality filtering and deduplication to ensure high relevance and consistency.

Training Procedure

Fine-tuning Approach: Supervised Fine-Tuning (SFT) with QLoRA for memory efficiency.
Hardware: Training was conducted on a single NVIDIA A100 GPU.
Optimization: Flash Attention 2 was utilized for enhanced performance.
Duration: The training process ran for up to 32 hours.

Training Hyperparameters

Mixed Precision: FP16
Optimizer: AdamW
Learning Rate: 5e-5
Epochs: 3

Environmental Impact

Hardware Type: NVIDIA A100 GPU
Hours Used: 32 hours
Carbon Emitted: 13.099 kgCO2eq

Evaluation

Testing Data, Factors & Metrics

Testing Data: A subset of 42 Dart files from the training dataset, evaluated in a zero-shot setting.
Factors: Syntax correctness, functional correctness.
Metrics: pass@1, syntax error rate, functional correctness rate.

Results

Syntax Correctness: +76% improvement compared to the base model.
Functional Correctness: +16.67% improvement compared to the base model.

Citation

If you use this model in your research, please cite:

BibTeX:

@inproceedings{hoffmann2024testgen,
  title={Generating Software Tests for Mobile Applications Using Fine-Tuned Large Language Models},
  author={Hoffmann, Jacob and Frister, Demian},
  booktitle={Proceedings of the 5th ACM/IEEE International Conference on Automation of Software Test (AST 2024)},
  year={2024},
  doi={10.1145/3644032.3644454}
}

Model Card Contact

Jacob Hoffmann: [email protected]
Demian Frister: [email protected]

jacobhoffmann
/

CodeLlama-13B-TestGen-Dart_v0.2-GGUF