Create the testcases for Descriptive statics ,standard deviation and...

Create the testcases for Descriptive statics ,standard deviation and probability distribution calculation

app/build.gradle

@@ -91,7 +91,8 @@ dependencies {
     implementation 'com.alimuzaffar.lib:pinentryedittext:1.3.1'
     implementation 'androidx.multidex:multidex:2.0.1'
 
-
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
 
 
 }
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app/src/test/java/com/elearning/probabilityandstatisticsanalyserandeducator/calculationfunction/DesStatCalculationTest.java

+package com.elearning.probabilityandstatisticsanalyserandeducator.calculationfunction;
+
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+import static org.junit.Assert.*;
+
+public class DesStatCalculationTest {
+
+    @Test
+    public void median() {
+        String[] input = {"20.0","50.0","10.0","80.0"};
+        ArrayList<Object> output;
+        //ArrayList<Object> Expected = Arrays.asList("750.0");
+        ArrayList<Object> Expected = new ArrayList<Object>(Arrays.asList("35.0"));
+        double delta = .1;
+
+        DesStatCalculation desStatCalculation = new DesStatCalculation();
+        output = desStatCalculation.Median(input);
+
+        assertArrayEquals(Expected, output, delta);
+    }
+    private void assertArrayEquals(ArrayList<Object> expected, ArrayList<Object> output, double delta) {
+    }
+}
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app/src/test/java/com/elearning/probabilityandstatisticsanalyserandeducator/calculationfunction/ProDistCalculationTest.java

+package com.elearning.probabilityandstatisticsanalyserandeducator.calculationfunction;
+
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+import static org.junit.Assert.*;
+
+public class ProDistCalculationTest {
+
+    @Test
+    public void meanOfDistribution() {
+        String[] input1 = {"1","2","3"};
+        String[] input2 = {"0.1","0.2","0.7"};
+        ArrayList<Object> output;
+        //ArrayList<Object> Expected = Arrays.asList("750.0");
+        ArrayList<Object> Expected = new ArrayList<Object>(Arrays.asList("2.6"));
+        double delta = .1;
+
+        ProDistCalculation proDistCalculation = new ProDistCalculation();
+        output = proDistCalculation.MeanOfDistribution(input1,input2);
+
+        assertArrayEquals(Expected, output, delta);
+
+    }
+    private void assertArrayEquals(ArrayList<Object> expected, ArrayList<Object> output, double delta) {
+    }
+}
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app/src/test/java/com/elearning/probabilityandstatisticsanalyserandeducator/calculationfunction/StdCalculationTest.java

+package com.elearning.probabilityandstatisticsanalyserandeducator.calculationfunction;
+
+import org.junit.Test;
+
+import java.lang.reflect.Array;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+import static org.junit.Assert.*;
+
+public class StdCalculationTest {
+
+    @Test
+    public void populationVariance() {
+        String[] input = {"20.0","50.0","10.0","80.0"};
+        ArrayList<Object> output;
+
+        ArrayList<Object> Expected = new ArrayList<Object>(Arrays.asList("750.0"));
+        double delta = .1;
+        
+        StdCalculation stdCalculation = new StdCalculation();
+        output = stdCalculation.PopulationVariance(input);
+
+        assertArrayEquals(Expected, output, delta);
+
+
+    }
+
+    private void assertArrayEquals(ArrayList<Object> expected, ArrayList<Object> output, double delta) {
+    }
+}
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