Tiny test for GattCharacteristic class

app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/MiscTest.java

@@ -0,0 +1,14 @@
+package nodomain.freeyourgadget.gadgetbridge.test;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import nodomain.freeyourgadget.gadgetbridge.service.btle.GattCharacteristic;
+
+public class MiscTest extends TestBase {
+    @Test
+    public void testGattCharacteristic() {
+        String desc = GattCharacteristic.lookup(GattCharacteristic.UUID_CHARACTERISTIC_HEART_RATE_CONTROL_POINT, "xxx");
+        Assert.assertEquals("heart rate control point", desc);
+    }
+}