tests: pass via flag instead of envvar

Signed-off-by: Henry Schreiner <[email protected]>

Author: henryiii

.github/workflows/test.yml

@@ -204,10 +204,8 @@ jobs:
         path: wheelhouse/*.whl
 
     - name: Test cibuildwheel
-      env:
-        CIBW_PLATFORM: ${{ matrix.platform }}
       run: |
-        uv run --no-sync bin/run_tests.py ${{ (runner.os == 'Linux' && runner.arch == 'X64') && '--run-podman' || '' }}
+        uv run --no-sync bin/run_tests.py --platform=${{ matrix.platform || 'native' }} ${{ (runner.os == 'Linux' && runner.arch == 'X64') && '--run-podman' || '' }}
 
   emulated-archs:
     name: Get qemu emulated architectures

bin/run_tests.py

@@ -27,6 +27,12 @@
         default=default_cpu_count,
         help="number of processes to use for testing",
     )
+    parser.add_argument(
+        "--platform",
+        choices={"all", "native", "android", "ios", "pyodide"},
+        default="all",
+        help="Either 'native' or 'android'/'ios'/'pyodide'",
+    )
     args = parser.parse_args()
 
     # move cwd to the project root
@@ -62,11 +68,11 @@
         "test",
         "-vv",
     ]
-    match os.environ.get("CIBW_PLATFORM", "native"):
-        case "":
-            serial_integration_test_args += ["-m not pyodide", "-m not android", "-m not ios"]
-        case "native":
+    match args.platform:
+        case "all":
             pass
+        case "native":
+            serial_integration_test_args += ["-m not pyodide", "-m not android", "-m not ios"]
         case platform:
             serial_integration_test_args += [f"-m {platform}"]