final step with junit tester

.idea/workspace.xml

@@ -4,7 +4,10 @@
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   </component>
   <component name="ChangeListManager">
-    <list default="true" id="2698c064-0a25-4fa9-b373-a085833ed750" name="Changes" comment="third step" />
+    <list default="true" id="2698c064-0a25-4fa9-b373-a085833ed750" name="Changes" comment="fourth step with main tester">
+      <change afterPath="$PROJECT_DIR$/src/test/java/ParallelSummersTest.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+    </list>
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@@ -23,6 +26,9 @@
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+  <component name="ProblemsViewState">
+    <option name="selectedTabId" value="CurrentFile" />
+  </component>
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@@ -36,6 +42,67 @@
     "SHARE_PROJECT_CONFIGURATION_FILES": "true"
   }
 }]]></component>
+  <component name="RunManager" selected="JUnit.ParallelSummersTest.testSixteenThread">
+    <configuration name="ParallelSummersTest.testEightThread" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="ExecutorServiceHW" />
+      <option name="PACKAGE_NAME" value="" />
+      <option name="MAIN_CLASS_NAME" value="ParallelSummersTest" />
+      <option name="METHOD_NAME" value="testEightThread" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="ParallelSummersTest.testFourThread" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="ExecutorServiceHW" />
+      <option name="PACKAGE_NAME" value="" />
+      <option name="MAIN_CLASS_NAME" value="ParallelSummersTest" />
+      <option name="METHOD_NAME" value="testFourThread" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="ParallelSummersTest.testSingleThread" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="ExecutorServiceHW" />
+      <option name="PACKAGE_NAME" value="" />
+      <option name="MAIN_CLASS_NAME" value="ParallelSummersTest" />
+      <option name="METHOD_NAME" value="testSingleThread" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="ParallelSummersTest.testSixteenThread" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="ExecutorServiceHW" />
+      <option name="PACKAGE_NAME" value="" />
+      <option name="MAIN_CLASS_NAME" value="ParallelSummersTest" />
+      <option name="METHOD_NAME" value="testSixteenThread" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="ParallelSummersTest.testTwoThread" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="ExecutorServiceHW" />
+      <option name="PACKAGE_NAME" value="" />
+      <option name="MAIN_CLASS_NAME" value="ParallelSummersTest" />
+      <option name="METHOD_NAME" value="testTwoThread" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="JUnit.ParallelSummersTest.testSixteenThread" />
+        <item itemvalue="JUnit.ParallelSummersTest.testEightThread" />
+        <item itemvalue="JUnit.ParallelSummersTest.testFourThread" />
+        <item itemvalue="JUnit.ParallelSummersTest.testTwoThread" />
+        <item itemvalue="JUnit.ParallelSummersTest.testSingleThread" />
+      </list>
+    </recent_temporary>
+  </component>
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@@ -66,7 +133,14 @@
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       <updated>1700071001900</updated>
     </task>
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+    <task id="LOCAL-00004" summary="fourth step with main tester">
+      <created>1700071261635</created>
+      <option name="number" value="00004" />
+      <option name="presentableId" value="LOCAL-00004" />
+      <option name="project" value="LOCAL" />
+      <updated>1700071261635</updated>
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+    <option name="localTasksCounter" value="5" />
     <servers />
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@@ -84,6 +158,7 @@
     <MESSAGE value="first step" />
     <MESSAGE value="second step" />
     <MESSAGE value="third step" />
-    <option name="LAST_COMMIT_MESSAGE" value="third step" />
+    <MESSAGE value="fourth step with main tester" />
+    <option name="LAST_COMMIT_MESSAGE" value="fourth step with main tester" />
   </component>
 </project>
\ No newline at end of file

src/test/java/ParallelSummersTest.java

+
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.example.SequentialSummer;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import org.example.data.TestData;
+import org.example.parallelsummers.ParallelSummer0;
+import org.example.parallelsummers.ParallelSummer1;
+import org.example.parallelsummers.ParallelSummer2;
+import org.example.parallelsummers.ParallelSummer3;
+import org.example.parallelsummers.ParallelSummer4;
+
+import java.util.Arrays;
+import java.util.List;
+
+class ParallelSummersTest {
+    /*
+    The ParallelSummersTest class is designed to assess the performance of other classes
+     that compute the count of prime numbers within a specified range.
+     The range starts from a variable named start and ends at a variable named end.
+     The data array contains the numbers within this range,
+     and the result variable stores the count of prime numbers calculated sequentially
+     */
+
+    private static int start;
+
+    private static int end;
+    private static int[] data;
+    private static long result;
+    /*
+    The function initialize is designed to identify the range and sequentially compute the result.
+     */
+    @BeforeAll
+    public static void initialize() {
+        start = 0;
+        end = 20;
+        data = TestData.createData(start, end);
+        result = SequentialSummer.sum(SequentialSummer.allPrimes(data));
+    }
+    /*
+    The testAll function is designed to compare the results of calculating the number of primes with five different parallel methods.
+    Each method requires a data array that contains a range of numbers and the number of threads to be used.
+    */
+    private static void testAll(int threadCount) {
+        assertEquals(result, ParallelSummer0.sum(data, threadCount));
+        assertEquals(result, ParallelSummer1.sum(data, threadCount));
+        assertEquals(result, ParallelSummer2.sum(data, threadCount));
+        assertEquals(result, ParallelSummer3.sum(data, threadCount));
+        assertEquals(result, ParallelSummer4.sum(data, threadCount));
+        System.out.println(result);
+    }
+    /*
+    Invoke the testSingleThread function to call the testAll function using a single thread,
+    and then print the total duration in seconds it takes to execute the tasks in parallel.
+    */
+    @Test
+    void testSingleThread() {
+        long start = System.currentTimeMillis();
+        testAll(1);
+        long end = System.currentTimeMillis();
+        System.out.println("1 Thread takes " + (end-start)/1000 + " seconds");
+    }
+    /*
+    Invoke the testTwoThread function to call the testAll function using two threads,
+    and then print the total duration in seconds it takes to execute the tasks in parallel.
+    */
+    @Test
+    void testTwoThread() {
+        long start = System.currentTimeMillis();
+        testAll(2);
+        long end = System.currentTimeMillis();
+        System.out.println("2 Threads take " + (end-start)/1000 + " seconds");
+    }
+    /*
+    Invoke the testFourThread function to call the testAll function using four threads,
+    and then print the total duration in seconds it takes to execute the tasks in parallel.
+    */
+    @Test
+    void testFourThread() {
+        long start = System.currentTimeMillis();
+        testAll(4);
+        long end = System.currentTimeMillis();
+        System.out.println("4 Threads take " + (end-start)/1000 + " seconds");
+    }
+    /*
+    Invoke the testEightThread function to call the testAll function using eight threads,
+    and then print the total duration in seconds it takes to execute the tasks in parallel.
+    */
+    @Test
+    void testEightThread() {
+        long start = System.currentTimeMillis();
+        testAll(8);
+        long end = System.currentTimeMillis();
+        System.out.println("8 Threads take " + (end-start)/1000 + " seconds");
+    }
+    /*
+    Invoke the testSixteenThread function to call the testAll function using sixteen threads,
+    and then print the total duration in seconds it takes to execute the tasks in parallel.
+    */
+    @Test
+    void testSixteenThread() {
+        long start = System.currentTimeMillis();
+        testAll(16);
+        long end = System.currentTimeMillis();
+        System.out.println("16 Threads take " + (end-start)/1000 + " seconds");
+    }
+
+
+}