Ensure the Thread integration test only run on CuttleFish devices

This is because the test case relies on **simulation** Thread radio, which is currently only available on CuttleFish.

Bug: 295843010
Test: atest android.net.thread.BorderRoutingTest

Change-Id: Icd29d91c9ec9912e27191e97fe7f58e9067c1d8c
diff --git a/thread/tests/integration/src/android/net/thread/BorderRoutingTest.java b/thread/tests/integration/src/android/net/thread/BorderRoutingTest.java
index 5d3818a..ba7e4b8 100644
--- a/thread/tests/integration/src/android/net/thread/BorderRoutingTest.java
+++ b/thread/tests/integration/src/android/net/thread/BorderRoutingTest.java
@@ -18,6 +18,7 @@
 
 import static android.Manifest.permission.MANAGE_TEST_NETWORKS;
 import static android.net.thread.IntegrationTestUtils.isExpectedIcmpv6Packet;
+import static android.net.thread.IntegrationTestUtils.isSimulatedThreadRadioSupported;
 import static android.net.thread.IntegrationTestUtils.newPacketReader;
 import static android.net.thread.IntegrationTestUtils.readPacketFrom;
 import static android.net.thread.IntegrationTestUtils.waitFor;
@@ -33,6 +34,7 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assume.assumeTrue;
 
 import android.content.Context;
 import android.net.LinkProperties;
@@ -131,6 +133,8 @@
 
     @Test
     public void infraDevicePingTheadDeviceOmr_Succeeds() throws Exception {
+        assumeTrue(isSimulatedThreadRadioSupported());
+
         /*
          * <pre>
          * Topology:
diff --git a/thread/tests/integration/src/android/net/thread/IntegrationTestUtils.java b/thread/tests/integration/src/android/net/thread/IntegrationTestUtils.java
index 9d9a4ff..c465d57 100644
--- a/thread/tests/integration/src/android/net/thread/IntegrationTestUtils.java
+++ b/thread/tests/integration/src/android/net/thread/IntegrationTestUtils.java
@@ -25,6 +25,7 @@
 import android.net.TestNetworkInterface;
 import android.os.Handler;
 import android.os.SystemClock;
+import android.os.SystemProperties;
 
 import com.android.net.module.util.Struct;
 import com.android.net.module.util.structs.Icmpv6Header;
@@ -50,6 +51,12 @@
 public final class IntegrationTestUtils {
     private IntegrationTestUtils() {}
 
+    /** Returns whether the device supports simulated Thread radio. */
+    public static boolean isSimulatedThreadRadioSupported() {
+        // The integration test uses SIMULATION Thread radio so that it only supports CuttleFish.
+        return SystemProperties.get("ro.product.model").startsWith("Cuttlefish");
+    }
+
     /**
      * Waits for the given {@link Supplier} to be true until given timeout.
      *