Add tests for NetCapability#getCapabilityCarrierName

Test: atest ConnectivityManagerTest
Fix: 183553812
Change-Id: I60801bb86302b57f6d72ea903d98a8249fae4555
diff --git a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
index 0255f59..e925570 100644
--- a/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
+++ b/tests/cts/net/src/android/net/cts/ConnectivityManagerTest.java
@@ -132,6 +132,8 @@
 
 import com.android.internal.util.ArrayUtils;
 import com.android.networkstack.apishim.ConnectivityManagerShimImpl;
+import com.android.networkstack.apishim.ConstantsShim;
+import com.android.networkstack.apishim.NetworkInformationShimImpl;
 import com.android.networkstack.apishim.common.ConnectivityManagerShim;
 import com.android.testutils.CompatUtil;
 import com.android.testutils.DevSdkIgnoreRule;
@@ -1901,4 +1903,13 @@
         assumeTrue(TestUtils.shouldTestSApis());
         runWithShellPermissionIdentity(() -> doTestLegacyLockdownEnabled(), NETWORK_SETTINGS);
     }
+
+    @Test
+    public void testGetCapabilityCarrierName() {
+        assumeTrue(TestUtils.shouldTestSApis());
+        assertEquals("ENTERPRISE", NetworkInformationShimImpl.newInstance()
+                .getCapabilityCarrierName(ConstantsShim.NET_CAPABILITY_ENTERPRISE));
+        assertNull(NetworkInformationShimImpl.newInstance()
+                .getCapabilityCarrierName(ConstantsShim.NET_CAPABILITY_NOT_VCN_MANAGED));
+    }
 }