llama.cpp/examples/server/tests/README.md
Xuan Son Nguyen 45abe0f74e
server : replace behave with pytest (#10416)
* server : replace behave with pytest

* fix test on windows

* misc

* add more tests

* more tests

* styling

* log less, fix embd test

* added all sequential tests

* fix coding style

* fix save slot test

* add parallel completion test

* fix parallel test

* remove feature files

* update test docs

* no cache_prompt for some tests

* add test_cache_vs_nocache_prompt
2024-11-26 16:20:18 +01:00

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# Server tests
Python based server tests scenario using [pytest](https://docs.pytest.org/en/stable/).
Tests target GitHub workflows job runners with 4 vCPU.
Note: If the host architecture inference speed is faster than GitHub runners one, parallel scenario may randomly fail.
To mitigate it, you can increase values in `n_predict`, `kv_size`.
### Install dependencies
`pip install -r requirements.txt`
### Run tests
1. Build the server
```shell
cd ../../..
cmake -B build -DLLAMA_CURL=ON
cmake --build build --target llama-server
```
2. Start the test: `./tests.sh`
It's possible to override some scenario steps values with environment variables:
| variable | description |
|--------------------------|------------------------------------------------------------------------------------------------|
| `PORT` | `context.server_port` to set the listening port of the server during scenario, default: `8080` |
| `LLAMA_SERVER_BIN_PATH` | to change the server binary path, default: `../../../build/bin/llama-server` |
| `DEBUG` | to enable steps and server verbose mode `--verbose` |
| `N_GPU_LAYERS` | number of model layers to offload to VRAM `-ngl --n-gpu-layers` |
To run slow tests:
```shell
SLOW_TESTS=1 ./tests.sh
```
To run with stdout/stderr display in real time (verbose output, but useful for debugging):
```shell
DEBUG=1 ./tests.sh -s -v -x
```
To see all available arguments, please refer to [pytest documentation](https://docs.pytest.org/en/stable/how-to/usage.html)