test: require self-healing Android lab adb bootstrap

Author: niakw

tests/native_android_avd_cache_contract_test.py

@@ -6,8 +6,9 @@
 prime = (ROOT / "scripts/prime_android_lab_adb.sh").read_text(encoding="utf-8")
 
 # The emulator image/snapshot is a Lab infrastructure artifact. It must not be
-# invalidated whenever an official Nuvio app commit advances; the app is built
-# and installed after the AVD is available.
+# invalidated whenever an official Nuvio app commit advances; the guest userdata
+# is deliberately retained so a warm Lab can reuse the installed client/profile
+# and provider cache instead of recreating the device on every run.
 assert "avd-v3-${{ runner.os }}-mobile-api35-google_apis-x86_64-pixel_2" in workflow
 assert "avd-v3-${{ runner.os }}-tv-api31-android-tv-x86-tv_1080p" in workflow
 for line in workflow.splitlines():
@@ -16,11 +17,16 @@
         assert "needs.resolve.outputs.tv_sha" not in line
         assert "needs.resolve.outputs.runtime_fingerprint" not in line
 
-# Every Android emulator path primes adb before the emulator action. The
-# preflight repairs common hosted-runner ADB state, but it is intentionally not
-# an acceptance gate: ReactiveCircus is still allowed to launch the AVD and
-# establish its own bridge when host-side adb priming is transiently degraded.
+# Every Android emulator path primes adb before the emulator action. GitHub's
+# hosted image can expose sdkmanager while platform-tools/adb is still absent,
+# so the preflight must install platform-tools itself before QEMU is launched.
+# This remains Lab-only and best-effort: a transient host-side failure does not
+# mutate Nuvio and the emulator action still gets a chance to establish ADB.
 assert workflow.count("bash niakvio/scripts/prime_android_lab_adb.sh") >= 3
+assert "sdkmanager" in prime
+assert "--install platform-tools" in prime
+assert "ANDROID_SDK_ROOT" in prime
+assert "ANDROID_HOME" in prime
 assert "unset ADB_SERVER_SOCKET" in prime
 assert "adb kill-server" in prime
 assert "adb start-server" in prime
@@ -29,4 +35,4 @@
 assert "status=degraded" in prime
 assert "runtime_mutation=false" in prime
 
-print("native Android AVD cache + resilient adb bootstrap contract passed")
+print("native Android AVD persistence + resilient adb bootstrap contract passed")