003 - feat: Add integration components tests

.github/workflows/test-report.yml

@@ -3,7 +3,7 @@ on:
   workflow_call:
   workflow_dispatch:
   workflow_run:
-    workflows: ['CI']                     # runs after CI workflow
+    workflows: [ 'CI' ]                     # runs after CI workflow
     types:
       - completed
 jobs:

README.md

@@ -1,42 +1,56 @@
 # A Java Maven Calculator Web App
+
 A Java calculator web app, build by Maven, CI/CD
 
 # Requirements
 
 Create calculator App
+
+* Sum: sum two numbers and return result
+* Subtract: subtract two numbers and return result
+* Multiply: multiply two numbers and return result
+* Divide: divide two numbers and return result
+    * divide by zero should return error message
+
+Create a service to wrap those methods
+
 * Sum: sum two numbers and return result
-* Substract: substract two numbers and return result
+* Subtract: subtract two numbers and return result
 * Multiply: multiply two numbers and return result
 * Divide: divide two numbers and return result
     * divide by zero should return error message
 
 ## System requirements
 
-JDK-11
-Maven 3.8.4
+* JDK-11
+* Maven 3.8.4
 
-## 1. Manualy Build, Test, and Deploy By Maven
+## 1. Manually Build, Test, and Deploy By Maven
 
 ### 1.2 Run JUnit Test
 
 Maven execution:
+
 ```console
 $ mvn clean test
 ```
 
 Maven wrapper:
+
 ```console
 $ mvn wrapper:wrapper -Dmaven=3.8.4
 ```
 
 Execute (linux/macos mvnw or windows mvnw.cmd):
+
 ```console
 $ ./mvnw clean test
 ```
 
 ## 2. Automatically Build and Test
 
 [Github action ci](.github/workflows/ci.yml) step definition:
+
 ```yaml
 steps:
   # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it

pom.xml

@@ -1,5 +1,6 @@
-<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/maven-v4_0_0.xsd">
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.geekshubs.javawebapp</groupId>
     <artifactId>java-maven-calculator-web-app</artifactId>

src/main/java/com/geekshubs/calculator/service/CalculatorService.java

@@ -0,0 +1,22 @@
+package com.geekshubs.calculator.service;
+
+import com.geekshubs.calculator.Calculator;
+
+public class CalculatorService {
+
+    public Calculator Add(int x, int y) {
+        return new Calculator(x, y, x + y);
+    }
+
+    public Calculator Sub(int x, int y) {
+        return new Calculator(x, y, x - y);
+    }
+
+    public Calculator Mul(int x, int y) {
+        return new Calculator(x, y, x * y);
+    }
+
+    public Calculator Div(int x, int y) {
+        return new Calculator(x, y, x / y);
+    }
+}

src/test/java/com/geekshubs/calculator/service/CalculatorServiceTest.java

@@ -0,0 +1,36 @@
+package com.geekshubs.calculator.service;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+public class CalculatorServiceTest {
+
+    CalculatorService calculatorService = new CalculatorService();
+
+    @Test
+    public void testAdd() {
+        assertEquals(34, calculatorService.Add(8, 26).getResult());
+    }
+
+    @Test
+    public void testSub() {
+        assertEquals(4, calculatorService.Sub(12, 8).getResult());
+    }
+
+    @Test
+    public void testMul() {
+        assertEquals(88, calculatorService.Mul(11, 8).getResult());
+    }
+
+    @Test
+    public void testDiv() {
+        assertEquals(1, calculatorService.Div(12, 12).getResult());
+    }
+
+    @Test
+    public void testDivByZero() {
+        assertThrows(ArithmeticException.class, () -> calculatorService.Div(10, 0).getResult());
+    }
+}