What method is used in AssertJ to check if a collection is empty?
A) isEmpty()
B) isNull()
C) hasSize(0)
D) containsNothing()
Answer:
A) isEmpty()
Explanation:
The isEmpty() method in AssertJ is used to assert that a collection is empty. It checks whether the collection contains no elements.
For example:
import static org.assertj.core.api.Assertions.assertThat;
List<String> emptyList = new ArrayList<>();
assertThat(emptyList).isEmpty();
In this example, the isEmpty() method asserts that the list emptyList is empty.