Don't change the wifi tethering state if a check fails with an exception, unit tests for TetheringStateManager, some minor refacorings related to that

1 files changed, 41 insertions, 0 deletions

diff --git a/app/src/main/java/se/leap/bitmaskclient/tethering/WifiManagerWrapper.java b/app/src/main/java/se/leap/bitmaskclient/tethering/WifiManagerWrapper.java
new file mode 100644
index 00000000..ed395d7f
--- /dev/null
+++ b/app/src/main/java/se/leap/bitmaskclient/tethering/WifiManagerWrapper.java
@@ -0,0 +1,41 @@
+/**
+ * Copyright (c) 2020 LEAP Encryption Access Project and contributers
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package se.leap.bitmaskclient.tethering;
+
+import android.content.Context;
+import android.net.wifi.WifiManager;
+
+import java.lang.reflect.Method;
+
+/**
+ * This Wrapper allows better Unit testing.
+ */
+class WifiManagerWrapper {
+
+    private WifiManager wifiManager;
+
+    WifiManagerWrapper(Context context) {
+        this.wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
+    }
+
+    boolean isWifiAPEnabled() throws Exception {
+        Method method = wifiManager.getClass().getMethod("getWifiApState");
+        int tmp = ((Integer) method.invoke(wifiManager));
+        return WifiHotspotState.WIFI_AP_STATE_ENABLED.ordinal() == tmp % 10;
+    }
+
+}