From 9849d899e82ca196032c5c212e09c3db25f6e005 Mon Sep 17 00:00:00 2001
From: Paul Hu <paulhu@google.com>
Date: Tue, 14 Apr 2020 10:04:07 +0000
Subject: [PATCH] Add TetherableInterfaceRegexps CTS tests

Test APIs below:
getTetherableWifiRegexs()
getTetherableUsbRegexs()
getTetherableBluetoothRegexs()
TetheringInterfaceRegexps.getTetherableWifiRegexs()
TetheringInterfaceRegexps.getTetherableUsbRegexs()
TetheringInterfaceRegexps.getTetherableBluetoothRegexs()

Bug: 152737526
Test: atest CtsTetheringTest
Change-Id: Icb7d8718d0aa6574b4c9dd1e17d7feb300fad2aa
Merged-In: Icb7d8718d0aa6574b4c9dd1e17d7feb300fad2aa
(cherry picked from commit 9f11d903a1d8cc6705481360bae4fb97cfbb966d, aosp/1271822)
---
 .../tethering/cts/TetheringManagerTest.java   | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/tests/cts/tethering/src/android/tethering/cts/TetheringManagerTest.java b/tests/cts/tethering/src/android/tethering/cts/TetheringManagerTest.java
index b132982e1a..193a5dc3a4 100644
--- a/tests/cts/tethering/src/android/tethering/cts/TetheringManagerTest.java
+++ b/tests/cts/tethering/src/android/tethering/cts/TetheringManagerTest.java
@@ -428,4 +428,30 @@ public class TetheringManagerTest {
         tetherEventCallback.expectTetheredInterfacesChanged(null);
         mTM.unregisterTetheringEventCallback(tetherEventCallback);
     }
+
+    @Test
+    public void testGetTetherableInterfaceRegexps() {
+        if (!mTM.isTetheringSupported()) return;
+
+        final TestTetheringEventCallback tetherEventCallback = new TestTetheringEventCallback();
+        mTM.registerTetheringEventCallback(c -> c.run(), tetherEventCallback);
+        tetherEventCallback.expectCallbackStarted();
+
+        final TetheringInterfaceRegexps tetherableRegexs =
+                tetherEventCallback.getTetheringInterfaceRegexps();
+        final List<String> wifiRegexs = tetherableRegexs.getTetherableWifiRegexs();
+        final List<String> usbRegexs = tetherableRegexs.getTetherableUsbRegexs();
+        final List<String> btRegexs = tetherableRegexs.getTetherableBluetoothRegexs();
+
+        assertEquals(wifiRegexs, Arrays.asList(mTM.getTetherableWifiRegexs()));
+        assertEquals(usbRegexs, Arrays.asList(mTM.getTetherableUsbRegexs()));
+        assertEquals(btRegexs, Arrays.asList(mTM.getTetherableBluetoothRegexs()));
+
+        //Verify that any of interface name should only contain in one array.
+        wifiRegexs.forEach(s -> assertFalse(usbRegexs.contains(s)));
+        wifiRegexs.forEach(s -> assertFalse(btRegexs.contains(s)));
+        usbRegexs.forEach(s -> assertFalse(btRegexs.contains(s)));
+
+        mTM.unregisterTetheringEventCallback(tetherEventCallback);
+    }
 }