llama-stack-mirror/tests/unit
Roy Belio 2619f3552e
fix: show built-in distributions in llama stack list (#4040)
# What does this PR do?
Fixes issue #3922 where `llama stack list` only showed distributions
after they were run. This PR makes the command show all available
distributions immediately on a fresh install.

Closes #3922

## Changes
- **Updated `_get_distribution_dirs()`** to discover both built-in and
built distributions:
- Built-in distributions from `src/llama_stack/distributions/` (e.g.,
starter, nvidia, dell)
  - Built distributions from `~/.llama/distributions`
- **Added a "Source" column** to distinguish between "built-in" and
"built" distributions
- **Built distributions override built-in ones** with the same name
(expected behavior)
- **Updated config file detection logic** to handle both naming
conventions:
  - Built-in: `build.yaml` and `run.yaml`
  - Built: `{name}-build.yaml` and `{name}-run.yaml`

## Test Plan
### Unit Tests
Added comprehensive unit tests in
`tests/unit/distribution/test_stack_list.py`:
```bash
uv run pytest tests/unit/distribution/test_stack_list.py -v
```
**Result**:  All 8 tests pass
- `test_builtin_distros_shown_without_running` - Verifies the core fix
for issue #3922
- `test_builtin_and_built_distros_shown_together` - Ensures both types
are shown
- `test_built_distribution_overrides_builtin` - Tests override behavior
- `test_empty_distributions` - Edge case handling
- `test_config_files_detection_builtin` - Config file detection for
built-in distros
- `test_config_files_detection_built` - Config file detection for built
distros
- `test_llamastack_prefix_stripped` - Name normalization
- `test_hidden_directories_ignored` - Filters hidden directories

### Manual Testing
**Before the fix** (simulated with empty `~/.llama/distributions`):
```bash
$ llama stack list
No stacks found in ~/.llama/distributions
```

**After the fix**:
```bash
$ llama stack list
┏━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
┃ Stack Name        ┃ Source   ┃ Path              ┃ Build Config ┃ Run Config ┃
┡━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━╇━━━━━━━━━━━━┩
│ ci-tests          │ built-in │ /path/to/src/...  │ Yes          │ Yes        │
│ dell              │ built-in │ /path/to/src/...  │ Yes          │ Yes        │
│ meta-reference-g… │ built-in │ /path/to/src/...  │ Yes          │ Yes        │
│ nvidia            │ built-in │ /path/to/src/...  │ Yes          │ Yes        │
│ open-benchmark    │ built-in │ /path/to/src/...  │ Yes          │ Yes        │
│ postgres-demo     │ built-in │ /path/to/src/...  │ Yes          │ Yes        │
│ starter           │ built-in │ /path/to/src/...  │ Yes          │ Yes        │
│ starter-gpu       │ built-in │ /path/to/src/...  │ Yes          │ Yes        │
│ watsonx           │ built-in │ /path/to/src/...  │ Yes          │ Yes        │
└───────────────────┴──────────┴───────────────────┴──────────────┴────────────┘
```

**After running a distribution**:
```bash
$ llama stack run starter  # Creates ~/.llama/distributions/starter
$ llama stack list
┏━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
┃ Stack Name        ┃ Source   ┃ Path              ┃ Build Config ┃ Run Config ┃
┡━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━╇━━━━━━━━━━━━┩
│ ...               │ built-in │ ...               │ Yes          │ Yes        │
│ starter           │ built    │ ~/.llama/distri…  │ No           │ No         │
│ ...               │ built-in │ ...               │ Yes          │ Yes        │
└───────────────────┴──────────┴───────────────────┴──────────────┴────────────┘
```
Note how `starter` now shows as "built" and points to
`~/.llama/distributions`, overriding the built-in version.

## Breaking Changes
**No breaking changes** - This is a bug fix that improves user
experience with minimal risk:
- No programmatic parsing of output found in the codebase
- Table format is clearly for human consumption
- The new "Source" column helps users understand where distributions
come from
- The behavior change is exactly what users expect (seeing all available
distributions)

---------

Co-authored-by: Claude <noreply@anthropic.com>
2025-11-05 10:16:28 -08:00
..
cli fix: generate provider config when using --providers (#4044) 2025-11-03 11:37:58 -08:00
conversations chore: remove unused classes (#4077) 2025-11-05 16:45:23 +01:00
core fix(context): prevent provider data leak between streaming requests (#3924) 2025-10-27 23:01:12 -07:00
distribution fix: show built-in distributions in llama stack list (#4040) 2025-11-05 10:16:28 -08:00
files feat(stores)!: use backend storage references instead of configs (#3697) 2025-10-20 13:20:09 -07:00
models feat(tools)!: substantial clean up of "Tool" related datatypes (#3627) 2025-10-02 15:12:03 -07:00
prompts/prompts feat(prompts): attach prompts to storage stores in run configs (#3893) 2025-10-27 11:12:12 -07:00
providers chore!: remove the agents (sessions and turns) API (#4055) 2025-11-04 09:38:39 -08:00
rag fix!: remove chunk_id property from Chunk class (#3954) 2025-10-29 18:59:59 -07:00
registry chore(cleanup)!: kill vector_db references as far as possible (#3864) 2025-10-20 20:06:16 -07:00
server test: suppress expected error logs in SSE test (#3886) 2025-10-22 14:34:32 -07:00
tools feat(tools)!: substantial clean up of "Tool" related datatypes (#3627) 2025-10-02 15:12:03 -07:00
utils feat(stores)!: use backend storage references instead of configs (#3697) 2025-10-20 13:20:09 -07:00
__init__.py chore: Add fixtures to conftest.py (#2067) 2025-05-06 13:57:48 +02:00
conftest.py test: suppress expected error logs in SSE test (#3886) 2025-10-22 14:34:32 -07:00
fixtures.py chore(rename): move llama_stack.distribution to llama_stack.core (#2975) 2025-07-30 23:30:53 -07:00
README.md test: Measure and track code coverage (#2636) 2025-07-18 18:08:36 +02:00

Llama Stack Unit Tests

Unit Tests

Unit tests verify individual components and functions in isolation. They are fast, reliable, and don't require external services.

Prerequisites

  1. Python Environment: Ensure you have Python 3.12+ installed
  2. uv Package Manager: Install uv if not already installed

You can run the unit tests by running:

./scripts/unit-tests.sh [PYTEST_ARGS]

Any additional arguments are passed to pytest. For example, you can specify a test directory, a specific test file, or any pytest flags (e.g., -vvv for verbosity). If no test directory is specified, it defaults to "tests/unit", e.g:

./scripts/unit-tests.sh tests/unit/registry/test_registry.py -vvv

If you'd like to run for a non-default version of Python (currently 3.12), pass PYTHON_VERSION variable as follows:

source .venv/bin/activate
PYTHON_VERSION=3.13 ./scripts/unit-tests.sh

Test Configuration

  • Test Discovery: Tests are automatically discovered in the tests/unit/ directory
  • Async Support: Tests use --asyncio-mode=auto for automatic async test handling
  • Coverage: Tests generate coverage reports in htmlcov/ directory
  • Python Version: Defaults to Python 3.12, but can be overridden with PYTHON_VERSION environment variable

Coverage Reports

After running tests, you can view coverage reports:

# Open HTML coverage report in browser
open htmlcov/index.html  # macOS
xdg-open htmlcov/index.html  # Linux
start htmlcov/index.html  # Windows