Merge branch 'fdai7780'

pom.xml

@@ -13,5 +13,19 @@
         <maven.compiler.target>19</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.1</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.8.1</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
 </project>

src/main/java/org/example/Admin.java

@@ -1,5 +1,9 @@
 package org.example;
 
+import java.io.*;
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  *  Represents an administrative user in the system.
  */
@@ -53,4 +57,45 @@ public class Admin {
         System.out.println("ID: " + getId());
         System.out.println("Role: " + getRole());
     }
+
+    /**
+     *
+     * @param admin the data of this admin is being written to the file
+     * @param filename the name of the file to write the data to
+     */
+    public void writeToFile(Admin admin, String filename) throws IOException{
+        try(BufferedWriter writer = new BufferedWriter(new FileWriter(filename))){
+            String attributes = admin.getName() + "\n" + admin.getId() + "\n" + admin.getRole();
+            writer.write(attributes);
+        }
+
+    }
+
+    /**
+     *
+     * @param filename the name of the file to read the data from
+     * @return the list of admins that have been read from the file
+     */
+    public static List<Admin> readFromFile(String filename)
+    {
+        List<Admin> admins = new ArrayList<>();
+
+        try (BufferedReader reader = new BufferedReader(new FileReader(filename))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                String name = line;
+                String id = reader.readLine();
+                String role = reader.readLine();
+
+                // Read any other fields you saved
+                Admin admin = new Admin(name, id, role);
+                admins.add(admin);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return admins;
+    }
+
 }

src/test/java/org/example/AdminTest.java

@@ -0,0 +1,70 @@
+package org.example;
+
+import org.junit.jupiter.api.Test;
+
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class AdminTest {
+
+    @org.junit.jupiter.api.Test
+    void printAdminInfo() {
+        Admin admin = new Admin("Aaron", "A1001", "Admin");
+
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(outputStream));
+
+        admin.printAdminInfo();
+
+        String printedOutput = outputStream.toString().trim();
+
+        assertTrue(printedOutput.contains("Aaron"));
+        assertTrue(printedOutput.contains("A1001"));
+        assertTrue(printedOutput.contains("Admin"));
+
+    }
+
+    @Test
+    void writeToFile() throws IOException {
+        Admin admin = new Admin("Simon", "A1001", "Admin") ;
+
+        String filename = "testAdminData.txt";
+
+        admin.writeToFile(admin, filename);
+
+        Path path = Path.of(filename);
+        String content = Files.readString(path);
+        assertEquals("Simon\nA1001\nAdmin", content);
+
+        Files.delete(path);
+
+    }
+
+    @Test
+    void readFromFile() throws IOException {
+
+        try (PrintWriter writer = new PrintWriter(new FileWriter("testAdminData.txt"))){
+            writer.println("Thomas");
+            writer.println("A1001");
+            writer.print("Admin");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        String filename = "testAdminData.txt";
+        List<Admin> testAdmins = Admin.readFromFile(filename);
+
+        assertEquals(1, testAdmins.size());
+        Admin admin = testAdmins.get(0);
+
+        assertEquals("Thomas", admin.getName());
+        assertEquals("A1001", admin.getId());
+        assertEquals("Admin", admin.getRole());
+
+        Files.delete(Path.of(filename));
+
+    }
+}