Add test for [stop|start]VpnProfile()

Ignore-AOSP-First: It's a part of security patches.
Bug: 191382886
Test: atest FrameworksNetTests:VpnTest
Change-Id: Ie9c0c626f404efe0dd6dc79ca891639bc224090a
diff --git a/tests/unit/java/com/android/server/ConnectivityServiceTest.java b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
index 103ed8b..6cde62a 100644
--- a/tests/unit/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
@@ -9470,6 +9470,19 @@
     }
 
     @Test
+    public void testStartVpnProfileFromDiffPackage() throws Exception {
+        final String notMyVpnPkg = "com.not.my.vpn";
+        assertThrows(
+                SecurityException.class, () -> mVpnManagerService.startVpnProfile(notMyVpnPkg));
+    }
+
+    @Test
+    public void testStopVpnProfileFromDiffPackage() throws Exception {
+        final String notMyVpnPkg = "com.not.my.vpn";
+        assertThrows(SecurityException.class, () -> mVpnManagerService.stopVpnProfile(notMyVpnPkg));
+    }
+
+    @Test
     public void testUidUpdateChangesInterfaceFilteringRule() throws Exception {
         LinkProperties lp = new LinkProperties();
         lp.setInterfaceName("tun0");