int ledPin = 13;       // LED connected to Pin 13
int buttonPin = 2;     // Button connected to Pin 2
int buttonState = 0;   // Variable to store the button state

void setup() {
    pinMode(ledPin, OUTPUT);   // Set LED pin as output
    pinMode(buttonPin, INPUT); // Set button pin as input
    Serial.begin(9600);        // Initialize serial communication for test output
}

void loop() {
    // Simulating each test case
    // Test Case 1: Button Not Pressed
    digitalWrite(buttonPin, LOW); // Simulate button not pressed
    buttonState = digitalRead(buttonPin);
    Serial.print("Test Case 1 - Button Not Pressed: LED State = ");
    Serial.println(digitalRead(ledPin)); // Expected: LOW (LED OFF)

    delay(1000); // Delay for readability in serial monitor

    // Test Case 2: Button Pressed
    digitalWrite(buttonPin, HIGH); // Simulate button pressed
    buttonState = digitalRead(buttonPin);
    if (buttonState == HIGH) {
        digitalWrite(ledPin, HIGH); // Turn on LED
    }
    Serial.print("Test Case 2 - Button Pressed: LED State = ");
    Serial.println(digitalRead(ledPin)); // Expected: HIGH (LED ON)

    delay(1000);

    // Test Case 3: Button Pressed and Released
    digitalWrite(buttonPin, HIGH); // Simulate button pressed
    buttonState = digitalRead(buttonPin);
    if (buttonState == HIGH) {
        digitalWrite(ledPin, HIGH); // Turn on LED
    }
    delay(500); // Hold the button press for a moment

    digitalWrite(buttonPin, LOW); // Simulate button released
    buttonState = digitalRead(buttonPin);
    if (buttonState == LOW) {
        digitalWrite(ledPin, LOW); // Turn off LED
    }
    Serial.print("Test Case 3 - Button Pressed and Released: LED State = ");
    Serial.println(digitalRead(ledPin)); // Expected: LOW (LED OFF)

    delay(1000);
}