Merge branch 'fdai7887' into 'master'

Fdai7887

See merge request fdai7600/PWN_Alpha_Dogs!4

src/main/java/org/example/Student.java

@@ -1,4 +1,9 @@
 package org.example;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  *  Represents an student user in the system.
  */
@@ -61,4 +66,36 @@ public class Student {
         System.out.println("Role: " + getRole());
     }
 
+
+    public void writeToFile(Student student, String filename) throws IOException {
+        try(BufferedWriter writer = new BufferedWriter(new FileWriter(filename))){
+            String attributes = student.getName() + "\n" + student.getId() + "\n" + student.getRole();
+            writer.write(attributes);
+        }
+
+    }
+
+    public static List<Student> readFromFile(String filename)
+    {
+        List<Student> students = 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();
+
+                Student student = new Student(name, id, role);
+                students.add(student);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return students;
+    }
+
+
+
 }

src/test/java/org/example/StudentTest.java

@@ -0,0 +1,77 @@
+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 StudentTest {
+
+    @org.junit.jupiter.api.Test
+    void writeToFile() throws IOException {
+        Student student = new Student("Sebastian", "S1001", "Student") ;
+
+        String filename = "testStudentData.txt";
+
+        student.writeToFile(student, filename);
+
+        Path path = Path.of(filename);
+        String content = Files.readString(path);
+        assertEquals("Sebastian\nS1001\nStudent", content);
+
+        Files.delete(path);
+
+    }
+
+
+
+
+
+    @Test
+    void readFromFile() throws IOException {
+
+        try (PrintWriter writer = new PrintWriter(new FileWriter("testStudentData.txt"))){
+            writer.println("Samuel");
+            writer.println("S1001");
+            writer.print("Student");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        String filename = "testStudentData.txt";
+        List<Student> testStudents = Student.readFromFile(filename);
+
+        assertEquals(1, testStudents.size());
+        Student admin = testStudents.get(0);
+
+        assertEquals("Samuel", admin.getName());
+        assertEquals("S1001", admin.getId());
+        assertEquals("Student", admin.getRole());
+
+        Files.delete(Path.of(filename));
+
+    }
+
+
+    @Test
+    void printStudentInfo() {
+        Student student = new Student("Sebastian", "S1001", "Student");
+
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(outputStream));
+
+        student.printStudentInfo();
+
+        String printedOutput = outputStream.toString().trim();
+
+        assertTrue(printedOutput.contains("Sebastian"));
+        assertTrue(printedOutput.contains("S1001"));
+        assertTrue(printedOutput.contains("Student"));
+
+    }
+
+
+
+}