Address some comments on IpManagerTest

Test: as follows
    - built (bullhead)
    - flashed
    - booted
    - runtest frameworks-net passes
Bug: 26991160
Change-Id: Ib543874188537e31422206d67d1760762a7c85cd
diff --git a/tests/net/java/android/net/ip/IpManagerTest.java b/tests/net/java/android/net/ip/IpManagerTest.java
index b04690e..025b017 100644
--- a/tests/net/java/android/net/ip/IpManagerTest.java
+++ b/tests/net/java/android/net/ip/IpManagerTest.java
@@ -38,12 +38,12 @@
 
 /**
  * Tests for IpManager.
- *
- * @hide
  */
 @RunWith(AndroidJUnit4.class)
 @SmallTest
 public class IpManagerTest {
+    private static final int DEFAULT_AVOIDBADWIFI_CONFIG_VALUE = 1;
+
     @Mock private Context mContext;
     @Mock private INetworkManagementService mNMService;
     @Mock private Resources mResources;
@@ -54,7 +54,7 @@
 
         when(mContext.getResources()).thenReturn(mResources);
         when(mResources.getInteger(R.integer.config_networkAvoidBadWifi))
-                .thenReturn(0);
+                .thenReturn(DEFAULT_AVOIDBADWIFI_CONFIG_VALUE);
 
         mContentResolver = new MockContentResolver();
         mContentResolver.addProvider(Settings.AUTHORITY, new FakeSettingsProvider());