Assertions

Question 1

Packages to import

Answer 1

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

Question 2

Example

Answer 2

@Test
void exampleTest() {
int result = someMethod();
Assertions.assertEquals(42, result, “The result should be 42”);
}

Question 3

Common Assertions

Answer 3

assertEquals(expected, actual): Checks if two values are equal.
assertTrue(condition): Checks if a condition is true.
assertFalse(condition): Checks if a condition is false.
assertNotNull(object): Checks if an object is not null.

Question 4

Parameterized Tests

Answer 4

This Parameterized Test is used to test a Test case with different parameters for this we use @ParameterizedTest annotations.

@ParameterizedTest
@ValueSource(ints = {1, 2, 3, 4, 5})
void testSquare(int value) {
int result = square(value);
assertEquals(value * value, result, “Square calculation is incorrect”);
}