Rewrite NetworkInfo CTS tests to Kotlin

Bug: 152356365
Test: atest CtsNetTestCasesLatestSdk:android.net.cts.NetworkInfoTest
      on both Q and R devices
Change-Id: I44ffdc4b4a9ba8fcc1fda895b9d7f8f551fd6bb3
Merged-In: I44ffdc4b4a9ba8fcc1fda895b9d7f8f551fd6bb3
(cherry picked from aosp/1256248)
diff --git a/tests/cts/net/src/android/net/cts/NetworkInfoTest.java b/tests/cts/net/src/android/net/cts/NetworkInfoTest.java
deleted file mode 100644
index 4a7b4e7..0000000
--- a/tests/cts/net/src/android/net/cts/NetworkInfoTest.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.net.cts;
-
-
-import android.content.Context;
-import android.net.ConnectivityManager;
-import android.net.NetworkInfo;
-import android.net.NetworkInfo.DetailedState;
-import android.net.NetworkInfo.State;
-import android.test.AndroidTestCase;
-
-public class NetworkInfoTest extends AndroidTestCase {
-
-    public static final int TYPE_MOBILE = ConnectivityManager.TYPE_MOBILE;
-    public static final int TYPE_WIFI = ConnectivityManager.TYPE_WIFI;
-    public static final String MOBILE_TYPE_NAME = "mobile";
-    public static final String WIFI_TYPE_NAME = "WIFI";
-
-    public void testAccessNetworkInfoProperties() {
-        ConnectivityManager cm = (ConnectivityManager) getContext().getSystemService(
-                Context.CONNECTIVITY_SERVICE);
-        NetworkInfo[] ni = cm.getAllNetworkInfo();
-        assertTrue(ni.length >= 1);
-
-        for (NetworkInfo netInfo: ni) {
-            switch (netInfo.getType()) {
-                case TYPE_MOBILE:
-                    assertNetworkInfo(netInfo, MOBILE_TYPE_NAME);
-                    break;
-                case TYPE_WIFI:
-                    assertNetworkInfo(netInfo, WIFI_TYPE_NAME);
-                    break;
-                 // TODO: Add BLUETOOTH_TETHER testing
-                 default:
-                     break;
-            }
-        }
-    }
-
-    private void assertNetworkInfo(NetworkInfo netInfo, String expectedTypeName) {
-        assertEquals(expectedTypeName.compareToIgnoreCase(netInfo.getTypeName()), 0);
-        if(netInfo.isConnectedOrConnecting()) {
-            assertTrue(netInfo.isAvailable());
-            if (State.CONNECTED == netInfo.getState()) {
-                assertTrue(netInfo.isConnected());
-            }
-            assertTrue(State.CONNECTING == netInfo.getState()
-                    || State.CONNECTED == netInfo.getState());
-            assertTrue(DetailedState.SCANNING == netInfo.getDetailedState()
-                    || DetailedState.CONNECTING == netInfo.getDetailedState()
-                    || DetailedState.AUTHENTICATING == netInfo.getDetailedState()
-                    || DetailedState.CONNECTED == netInfo.getDetailedState());
-        }
-        assertNotNull(netInfo.toString());
-    }
-}
diff --git a/tests/cts/net/src/android/net/cts/NetworkInfoTest.kt b/tests/cts/net/src/android/net/cts/NetworkInfoTest.kt
new file mode 100644
index 0000000..e1dca53
--- /dev/null
+++ b/tests/cts/net/src/android/net/cts/NetworkInfoTest.kt
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net.cts
+
+import android.content.Context
+import android.net.ConnectivityManager
+import android.net.NetworkInfo
+import android.net.NetworkInfo.DetailedState
+import android.net.NetworkInfo.State
+import androidx.test.filters.SmallTest
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.runner.AndroidJUnit4
+import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertTrue
+import org.junit.runner.RunWith
+import org.junit.Test
+
+const val TYPE_MOBILE = ConnectivityManager.TYPE_MOBILE
+const val TYPE_WIFI = ConnectivityManager.TYPE_WIFI
+const val MOBILE_TYPE_NAME = "mobile"
+const val WIFI_TYPE_NAME = "WIFI"
+
+@SmallTest
+@RunWith(AndroidJUnit4::class)
+class NetworkInfoTest {
+    @Test
+    fun testAccessNetworkInfoProperties() {
+        val cm = InstrumentationRegistry.getInstrumentation().context
+                .getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+        val ni = cm.getAllNetworkInfo()
+        assertTrue(ni.isNotEmpty())
+
+        for (netInfo in ni) {
+            when (netInfo.getType()) {
+                TYPE_MOBILE -> assertNetworkInfo(netInfo, MOBILE_TYPE_NAME)
+                TYPE_WIFI -> assertNetworkInfo(netInfo, WIFI_TYPE_NAME)
+                // TODO: Add BLUETOOTH_TETHER testing
+            }
+        }
+    }
+
+    private fun assertNetworkInfo(netInfo: NetworkInfo, expectedTypeName: String) {
+        assertTrue(expectedTypeName.equals(netInfo.getTypeName(), ignoreCase = true))
+        assertNotNull(netInfo.toString())
+
+        if (!netInfo.isConnectedOrConnecting()) return
+
+        assertTrue(netInfo.isAvailable())
+        if (State.CONNECTED == netInfo.getState()) {
+            assertTrue(netInfo.isConnected())
+        }
+        assertTrue(State.CONNECTING == netInfo.getState() ||
+                State.CONNECTED == netInfo.getState())
+        assertTrue(DetailedState.SCANNING == netInfo.getDetailedState() ||
+                DetailedState.CONNECTING == netInfo.getDetailedState() ||
+                DetailedState.AUTHENTICATING == netInfo.getDetailedState() ||
+                DetailedState.CONNECTED == netInfo.getDetailedState())
+    }
+}