Use pyproject.toml + uv_build

This replaces setup.py by a modern pyproject.toml using uv_build
backend.

Dependencies are being also managed by uv, so to install dependencies
and run the project one can execute:

```
uv sync
uv run pytest # optional
python -m avp
```

To build the both source and binary (wheel) distribution package run:
```
uv build
```

Uv can be installed with `pip install uv`.

The directory structure has been changed to reflect best practices.
- src/* -> src/avp/
- src/tests -> ../tests

1 files changed, 45 insertions, 0 deletions

diff --git a/tests/test_commandline_parser.py b/tests/test_commandline_parser.py
new file mode 100644
index 0000000..5713286
--- /dev/null
+++ b/tests/test_commandline_parser.py
@@ -0,0 +1,45 @@
+import sys
+import pytest
+from avp.command import Command
+
+
+def test_commandline_help():
+    command = Command()
+    sys.argv = ["", "--help"]
+    with pytest.raises(SystemExit):
+        command.parseArgs()
+
+
+def test_commandline_help_if_bad_args():
+    command = Command()
+    sys.argv = ["", "--junk"]
+    with pytest.raises(SystemExit):
+        command.parseArgs()
+
+
+def test_commandline_launches_gui_if_debug():
+    command = Command()
+    sys.argv = ["", "--debug"]
+    mode = command.parseArgs()
+    assert mode == "GUI"
+
+
+def test_commandline_launches_gui_if_debug_with_project():
+    command = Command()
+    sys.argv = ["", "test", "--debug"]
+    mode = command.parseArgs()
+    assert mode == "GUI"
+
+
+def test_commandline_tries_to_export():
+    command = Command()
+    didCallFunction = False
+
+    def captureFunction(*args):
+        nonlocal didCallFunction
+        didCallFunction = True
+
+    sys.argv = ["", "-c", "0", "classic", "-i", "_", "-o", "_"]
+    command.createAudioVisualization = captureFunction
+    command.parseArgs()
+    assert didCallFunction