feat: support uv with Android (#2587)

test/conftest.py

@@ -154,19 +154,39 @@ def docker_warmup_fixture(
 @pytest.fixture(params=["pip", "build"])
 def build_frontend_env_nouv(request: pytest.FixtureRequest) -> dict[str, str]:
     frontend = request.param
-    if get_platform() == "pyodide" and frontend == "pip":
+    marks = {m.name for m in request.node.iter_markers()}
+
+    platform = "pyodide" if "pyodide" in marks else get_platform()
+    if platform == "pyodide" and frontend == "pip":
         pytest.skip("Can't use pip as build frontend for pyodide platform")
 
     return {"CIBW_BUILD_FRONTEND": frontend}
 
 
-@pytest.fixture
-def build_frontend_env(build_frontend_env_nouv: dict[str, str]) -> dict[str, str]:
-    frontend = build_frontend_env_nouv["CIBW_BUILD_FRONTEND"]
-    if frontend != "build" or get_platform() == "pyodide" or find_uv() is None:
-        return build_frontend_env_nouv
+@pytest.fixture(params=["pip", "build", "build[uv]"])
+def build_frontend_env(request: pytest.FixtureRequest) -> dict[str, str]:
+    frontend = request.param
+    marks = {m.name for m in request.node.iter_markers()}
+    if "android" in marks:
+        platform = "android"
+    elif "ios" in marks:
+        platform = "ios"
+    elif "pyodide" in marks:
+        platform = "pyodide"
+    else:
+        platform = get_platform()
 
-    return {"CIBW_BUILD_FRONTEND": "build[uv]"}
+    if platform in {"pyodide", "ios", "android"} and frontend == "pip":
+        pytest.skip(f"Can't use pip as build frontend for {platform}")
+    if platform == "pyodide" and frontend == "build[uv]":
+        pytest.skip("Can't use uv with pyodide yet")
+    uv_path = find_uv()
+    if uv_path is None and frontend == "build[uv]":
+        pytest.skip("Can't find uv, so skipping uv tests")
+    if uv_path is not None and frontend == "build" and platform not in {"android", "ios"}:
+        pytest.skip("No need to check build when uv is present")
+
+    return {"CIBW_BUILD_FRONTEND": frontend}
 
 
 @pytest.fixture