initial files commit

.gitignore

+/target
+/.idea

pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>JUnit_practice</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <dependencies>
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.2</version>
+            <scope>test</scope>
+        </dependency>
+
+
+    </dependencies>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+    </properties>
+
+</project>
\ No newline at end of file

src/main/java/Calculator.java

+public class Calculator {
+    public Long addTwo(Long l, Long r) {return l + r;}
+}

src/test/java/CalculatorTest.java

+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class CalculatorTest {
+
+
+    public static void main(String[] args) {
+        Calculator calculator = new Calculator();
+        long res = calculator.addTwo(10l, 15l);
+        assertEquals(res, 25L);
+    }
+
+
+}