Issue 4031 - Implement tests for libadblockplus-android

libadblockplus-android-tests/src/org/adblockplus/libadblockplus/tests/FilterEngineUpdaterTest.java

Index: libadblockplus-android-tests/src/org/adblockplus/libadblockplus/tests/FilterEngineUpdaterTest.java
===================================================================
new file mode 100644
--- /dev/null
+++ b/libadblockplus-android-tests/src/org/adblockplus/libadblockplus/tests/FilterEngineUpdaterTest.java
@@ -0,0 +1,52 @@
+/*
+ * This file is part of Adblock Plus <https://adblockplus.org/>,
+ * Copyright (C) 2006-2016 Eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus 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 Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.adblockplus.libadblockplus.tests;
+
+import org.adblockplus.libadblockplus.MockUpdateAvailableCallback;
+import org.adblockplus.libadblockplus.NoOpUpdaterCallback;
+import org.adblockplus.libadblockplus.ServerResponse;
+
+import org.junit.Test;
+
+public class FilterEngineUpdaterTest extends UpdaterTest {
+
+    @Test
+    public void testSetRemoveUpdateAvailableCallback() throws InterruptedException {
+        mockWebRequest.response.setStatus(ServerResponse.NsStatus.OK);
+        mockWebRequest.response.setResponseStatus(200);
+        mockWebRequest.response.setResponse(
+            "{\n" +
+            "   \"test\": {\n" +
+            "       \"version\": \"1.0.2\",\n" +
+            "       \"url\": \"https://downloads.adblockplus.org/test-1.0.2.tar.gz?update\"\n" +
+            "   }\n" +
+            "}");
+
+        MockUpdateAvailableCallback mockUpdateAvailableCallback =
+            new MockUpdateAvailableCallback(0);
+        filterEngine.setUpdateAvailableCallback(mockUpdateAvailableCallback);
+        filterEngine.forceUpdateCheck(new NoOpUpdaterCallback());
+        Thread.sleep(1000);
+        assertEquals(1, mockUpdateAvailableCallback.getTimesCalled());
+
+        filterEngine.removeUpdateAvailableCallback();
+        filterEngine.forceUpdateCheck(new NoOpUpdaterCallback());
+        Thread.sleep(1000);
+        assertEquals(1, mockUpdateAvailableCallback.getTimesCalled());
+    }
+}