Added Testcases for CpuArchHelper.java

Author: hiteshsondhi88

FFmpegAndroid/src/androidTest/java/com/github/hiteshsondhi88/libffmpeg/CpuArchHelperTest.java

@@ -0,0 +1,18 @@
+package com.github.hiteshsondhi88.libffmpeg;
+
+import android.os.Build;
+
+import junit.framework.TestCase;
+
+public class CpuArchHelperTest extends TestCase {
+
+    public void testGetCpuArch() throws Exception {
+        CpuArch cpuArch = CpuArchHelper.getCpuArch();
+        assertNotNull(cpuArch);
+        if (Build.CPU_ABI.equals(CpuArchHelper.getx86CpuAbi()) || Build.CPU_ABI.equals(CpuArchHelper.getArmeabiv7CpuAbi())) {
+            assertNotSame(cpuArch, CpuArch.NONE);
+        } else {
+            assertEquals(cpuArch, CpuArch.NONE);
+        }
+    }
+}