lab finished

lab204/.gitignore

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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

lab204/pom.xml

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+<?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>com.ironhack</groupId>
+    <artifactId>lab204</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>RELEASE</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>RELEASE</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+</project>

lab204/src/main/java/com/ironhack/Main.java

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+package com.ironhack;
+
+public class Main {
+    public static void main(String[] args) {
+
+    }
+}

lab204/src/main/java/com/ironhack/Person.java

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+package com.ironhack;
+
+public class Person {
+    private int id;
+    private String name;
+    private int age;
+    private String occupation;
+
+    public Person(int id, String name, int age, String occupation) {
+        this.id = id;
+        this.name = name;
+        this.age = age;
+        this.occupation = occupation;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public String getOccupation() {
+        return occupation;
+    }
+
+    public void setAge(int age) {
+        if (age < 0) {
+            throw new IllegalArgumentException("Age cannot be negative");
+        }
+        this.age = age;
+    }
+
+    @Override
+    public String toString() {
+        return "Person{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                ", age=" + age +
+                ", occupation='" + occupation + '\'' +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) return true;
+        if (obj == null || getClass() != obj.getClass()) return false;
+
+        Person person = (Person) obj;
+
+        if (age != person.age) return false;
+        if (!name.equals(person.name)) return false;
+        return occupation.equals(person.occupation);
+    }
+
+    // Example usage:
+    // public static void main(String[] args) {
+    //     Person person1 = new Person(1, "John Doe", 30, "Developer");
+    //     Person person2 = new Person(2, "John Doe", 30, "Developer");
+    //     System.out.println(person1.equals(person2)); // true
+    // }
+}

lab204/src/main/java/com/ironhack/PersonsList.java

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+package com.ironhack;
+
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class PersonsList {
+    private List<Person> persons;
+
+    public PersonsList() {
+        persons = new ArrayList<>();
+    }
+
+    public void addPerson(Person person) {
+        persons.add(person);
+    }
+
+    public Person findByName(String name) {
+        // Validate name format (firstName lastName)
+        if (!Pattern.matches("^[A-Za-z]+ [A-Za-z]+$", name)) {
+            throw new IllegalArgumentException("Name must be formatted as 'firstName lastName'");
+        }
+
+        for (Person person : persons) {
+            if (person.getName().equals(name)) {
+                return person;
+            }
+        }
+
+        throw new RuntimeException("No person found with name: " + name);
+    }
+
+    public Person clone(Person person, int newId) {
+        return new Person(newId, person.getName(), person.getAge(), person.getOccupation());
+    }
+
+    public void writePersonToFile(Person person, String fileName) {
+        try (BufferedWriter writer = new BufferedWriter(new FileWriter(fileName))) {
+            writer.write(person.toString());
+        } catch (IOException e) {
+            System.err.println("Error writing to file: " + e.getMessage());
+        }
+    }
+
+}

lab204/src/test/java/com/ironhack/PersonTest.java

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+package com.ironhack;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class PersonTest {
+
+    private Person person;
+    private PersonsList personsList;
+
+    @BeforeEach
+    public void setUp() {
+        // Create a sample person and a persons list
+        person = new Person(1, "John Doe", 30, "Developer");
+        personsList = new PersonsList();
+        personsList.addPerson(person);
+        personsList.addPerson(new Person(2, "Jane Smith", 25, "Designer"));
+    }
+
+    // Test case 1: Test the setAge method to ensure that it throws an error if the age is less than 0
+    @Test
+    public void testSetAgeWithNegativeValue() {
+        // Attempt to set a negative age
+        Exception exception = assertThrows(IllegalArgumentException.class, () -> {
+            person.setAge(-5);
+        });
+
+        // Verify the exception message
+        String expectedMessage = "Age cannot be negative";
+        String actualMessage = exception.getMessage();
+        assertTrue(actualMessage.contains(expectedMessage));
+    }
+
+    //    Test case 1 extension: Verify that valid age updates work correctly
+    @Test
+    public void testSetAgeWithValidValue() {
+        // Set a valid age
+        person.setAge(35);
+
+        // Verify the age was updated
+        assertEquals(35, person.getAge());
+    }
+}

lab204/src/test/java/com/ironhack/PersonsListTest.java

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+package com.ironhack;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class PersonsListTest {
+
+    private Person person;
+    private PersonsList personsList;
+
+    @BeforeEach
+    public void setUp() {
+        // Create a sample person and a persons list for testing
+        person = new Person(1, "John Doe", 30, "Developer");
+        personsList = new PersonsList();
+        personsList.addPerson(person);
+        personsList.addPerson(new Person(2, "Jane Smith", 25, "Designer"));
+    }
+
+    //    Test case 2: Test the findByName method to ensure that it properly finds and returns the correct Person object when given a properly formatted name
+    @Test
+    public void testFindByNameWithValidName() {
+        // Find a person by name
+        Person foundPerson = personsList.findByName("John Doe");
+
+        // Verify the found person has the correct properties
+        assertEquals(1, foundPerson.getId());
+        assertEquals("John Doe", foundPerson.getName());
+        assertEquals(30, foundPerson.getAge());
+        assertEquals("Developer", foundPerson.getOccupation());
+    }
+
+    //    Test case 3: Test the findByName method to ensure that it throws an exception if the name parameter is not properly formatted
+    @Test
+    public void testFindByNameWithInvalidFormat() {
+        // Test with various improperly formatted names
+        String[] invalidNames = {
+                "JohnDoe",      // No space
+                "John",         // Only first name
+                "John Doe Jr",  // More than firstName lastName
+                "123 456",      // Numbers, not letters
+                " John Doe",    // Leading space
+                "John Doe "     // Trailing space
+        };
+
+        for (String invalidName : invalidNames) {
+            Exception exception = assertThrows(IllegalArgumentException.class, () -> {
+                personsList.findByName(invalidName);
+            });
+
+            String expectedMessage = "Name must be formatted as 'firstName lastName'";
+            assertTrue(exception.getMessage().contains(expectedMessage));
+        }
+    }
+
+    //    Test case 3 extension: Test that findByName throws an exception when no matching person exists
+    @Test
+    public void testFindByNameWithNonExistentName() {
+        Exception exception = assertThrows(RuntimeException.class, () -> {
+            personsList.findByName("Alice Johnson");
+        });
+
+        String expectedMessage = "No person found with name: Alice Johnson";
+        assertEquals(expectedMessage, exception.getMessage());
+    }
+
+    //    Test case 4: Test the clone method to ensure that it creates a new Person object with the same properties as the original, except with a new id
+    @Test
+    public void testClone() {
+        // Clone the person with a new ID
+        int newId = 99;
+        Person clonedPerson = personsList.clone(person, newId);
+
+        // Verify the cloned person has the same properties except ID
+        assertEquals(newId, clonedPerson.getId());
+        assertEquals(person.getName(), clonedPerson.getName());
+        assertEquals(person.getAge(), clonedPerson.getAge());
+        assertEquals(person.getOccupation(), clonedPerson.getOccupation());
+
+        // Verify it's a different object instance
+        assertNotSame(person, clonedPerson);
+
+        // Verify equals method works correctly (should return true since it ignores ID)
+        assertTrue(person.equals(clonedPerson));
+    }
+
+
+}