code manipulation : 코드 커버리지 측정하기(jacoco)

code-manipulation/pom.xml

@@ -0,0 +1,75 @@
+<?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>code-manipulation</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>code-manipulation</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>11</maven.compiler.source>
+    <maven.compiler.target>11</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.11</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <!-- jacoco -->
+      <plugin>
+        <groupId>org.jacoco</groupId>
+        <artifactId>jacoco-maven-plugin</artifactId>
+        <version>0.8.4</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>prepare-agent</goal>
+            </goals>
+          </execution>
+          <execution>
+            <id>report</id>
+            <phase>prepare-package</phase>
+            <goals>
+              <goal>report</goal>
+            </goals>
+          </execution>
+          <execution>
+            <id>jacoco-check</id>
+            <goals>
+              <goal>check</goal>
+            </goals>
+            <configuration>
+              <rules>
+                <rule>
+                  <element>PACKAGE</element>
+                  <limits>
+                    <limit>
+                      <counter>LINE</counter>
+                      <value>COVEREDRATIO</value>
+                      <minimum>0.50</minimum>
+                    </limit>
+                  </limits>
+                </rule>
+              </rules>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

code-manipulation/src/main/java/org/example/Moim.java

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+package org.example;
+
+public class Moim {
+
+    int maxNumberOfAttendees;
+
+    int numberOfEnrollment;
+
+    public boolean isEnrollmentFull() {
+        if (maxNumberOfAttendees == 0) {
+            return false;
+        }
+
+        if (numberOfEnrollment < maxNumberOfAttendees) {
+            return false;
+        }
+
+        return true;
+    }
+}

code-manipulation/src/test/java/org/example/AppTest.java

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+package org.example;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest {
+    /**
+     * Rigorous Test :-)
+     */
+    @Test
+    public void shouldAnswerWithTrue()
+    {
+        assertTrue( true );
+    }
+}

code-manipulation/src/test/java/org/example/MoimTest.java

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+package org.example;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class MoimTest {
+
+    @Test
+    public void isFull() throws Exception {
+        Moim moim = new Moim();
+        moim.maxNumberOfAttendees = 100;
+        moim.numberOfEnrollment = 10;
+        Assert.assertFalse(moim.isEnrollmentFull());
+    }
+}