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diff --git a/sleepingcelldetector/src/test/java/org/onap/rapp/sleepingcelldetector/service/scd/SleepingCellDetectorServiceTest.java b/sleepingcelldetector/src/test/java/org/onap/rapp/sleepingcelldetector/service/scd/SleepingCellDetectorServiceTest.java
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+++ b/sleepingcelldetector/src/test/java/org/onap/rapp/sleepingcelldetector/service/scd/SleepingCellDetectorServiceTest.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2021 Samsung Electronics
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package org.onap.rapp.sleepingcelldetector.service.scd;
+
+import org.onap.rapp.sleepingcelldetector.configuration.SleepingCellDetectorConfiguration;
+import org.onap.rapp.sleepingcelldetector.entity.MeasurementConfiguration;
+import org.onap.rapp.sleepingcelldetector.service.CellPerformanceHandlerTest;
+import org.onap.rapp.sleepingcelldetector.service.JsonHelper;
+import org.onap.rapp.sleepingcelldetector.service.scd.condition.ConditionEnum;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@RunWith(MockitoJUnitRunner.class)
+public class SleepingCellDetectorServiceTest {
+
+    private SleepingCellDetectorService sleepingCellDetectorService;
+
+    @Mock
+    SleepingCellDetectorConfiguration configuration;
+
+    @Before
+    public void init() {
+        sleepingCellDetectorService = new SleepingCellDetectorService(new JsonHelper(), configuration);
+        sleepingCellDetectorService.measurementMap = prepareMeasurementConfig();
+    }
+
+    @Test
+    public void predictingActiveCellTestWithFullDataTest() {
+        Mockito.when(configuration.getPredictionSlotNumber()).thenReturn(12);
+        boolean prediction = sleepingCellDetectorService.isFailing(CellPerformanceHandlerTest.getPMDataList(20, 80));
+        Assert.assertFalse(prediction);
+    }
+
+    @Test
+    public void predictingActiveCellTWithEmptyDataOnBeginningTest() {
+        Mockito.when(configuration.getPredictionSlotNumber()).thenReturn(12);
+        boolean prediction = sleepingCellDetectorService.isFailing(preparePerformanceDataWithEmptyDataOnBeginning(20, 80));
+        Assert.assertFalse(prediction);
+    }
+
+    @Test
+    public void predictingActiveCellTWithEmptyDataInMiddleTest() {
+        Mockito.when(configuration.getPredictionSlotNumber()).thenReturn(12);
+        boolean prediction = sleepingCellDetectorService.isFailing(preparePerformanceDataWithEmptyDataInMiddle(20, 80));
+        Assert.assertFalse(prediction);
+    }
+
+    @Test
+    public void predictingActiveCellTWithEmptyDataInEndTest() {
+        Mockito.when(configuration.getPredictionSlotNumber()).thenReturn(12);
+        boolean prediction = sleepingCellDetectorService.isFailing(preparePerformanceDataWithEmptyDataInEnd(20, 80));
+        Assert.assertFalse(prediction);
+    }
+
+    @Test
+    public void predictingFailingCellTestWithFullDataTest() {
+        Mockito.when(configuration.getPredictionSlotNumber()).thenReturn(12);
+        boolean prediction = sleepingCellDetectorService.isFailing(CellPerformanceHandlerTest.getPMDataList(500, 5));
+        Assert.assertTrue(prediction);
+    }
+
+    @Test
+    public void predictingFailingCellTWithEmptyDataOnBeginningTest() {
+        Mockito.when(configuration.getPredictionSlotNumber()).thenReturn(12);
+        boolean prediction = sleepingCellDetectorService.isFailing(preparePerformanceDataWithEmptyDataOnBeginning(500, 5));
+        Assert.assertTrue(prediction);
+    }
+
+    @Test
+    public void predictingFailingCellTWithEmptyDataInMiddleTest() {
+        Mockito.when(configuration.getPredictionSlotNumber()).thenReturn(12);
+        boolean prediction = sleepingCellDetectorService.isFailing(preparePerformanceDataWithEmptyDataInMiddle(500, 5));
+        Assert.assertTrue(prediction);
+    }
+
+    @Test
+    public void predictingFailingCellTWithEmptyDataInEndTest() {
+        Mockito.when(configuration.getPredictionSlotNumber()).thenReturn(12);
+        boolean prediction = sleepingCellDetectorService.isFailing(preparePerformanceDataWithEmptyDataInEnd(500, 5));
+        Assert.assertTrue(prediction);
+    }
+
+    private List<Map<String, Integer>> preparePerformanceDataWithEmptyDataOnBeginning(int latency, int throughput){
+        List<Map<String, Integer>> pmList = CellPerformanceHandlerTest.getPMDataList(latency, throughput);
+        pmList.set(0, getEmptyMeasurementsData());
+        pmList.set(1, getEmptyMeasurementsData());
+        pmList.set(2, getEmptyMeasurementsData());
+        return  pmList;
+    }
+
+    private List<Map<String, Integer>> preparePerformanceDataWithEmptyDataInMiddle(int latency, int throughput){
+        List<Map<String, Integer>> pmList = CellPerformanceHandlerTest.getPMDataList(latency, throughput);
+        pmList.set(6, getEmptyMeasurementsData());
+        pmList.set(7, getEmptyMeasurementsData());
+        pmList.set(8, getEmptyMeasurementsData());
+        return  pmList;
+    }
+
+    private List<Map<String, Integer>> preparePerformanceDataWithEmptyDataInEnd(int latency, int throughput){
+        List<Map<String, Integer>> pmList = CellPerformanceHandlerTest.getPMDataList(latency, throughput);
+        pmList.set(9, getEmptyMeasurementsData());
+        pmList.set(10, getEmptyMeasurementsData());
+        pmList.set(11, getEmptyMeasurementsData());
+        return  pmList;
+    }
+
+    private Map<String, Integer> getEmptyMeasurementsData() {
+        Map<String, Integer> emptyDataMap = new HashMap<>();
+        emptyDataMap.put("latency", null);
+        emptyDataMap.put("throughput", null);
+        return emptyDataMap;
+    }
+
+    private Map<String, MeasurementConfiguration> prepareMeasurementConfig() {
+        MeasurementConfiguration latencyConfig = new MeasurementConfiguration("latency", ConditionEnum.MORE_OR_EQUAL, 400, 150, 2);
+        MeasurementConfiguration throughputConfig = new MeasurementConfiguration("throughput", ConditionEnum.LESS_OR_EQUAL, 10, 10, 2);
+
+        Map<String, MeasurementConfiguration> configMap = new HashMap<>();
+        configMap.put("latency", latencyConfig);
+        configMap.put("throughput", throughputConfig);
+
+        return configMap;
+    }
+}