src/main/java/org/fest/assertions/internal/Sets.java
public void assertNotEmpty(Description description, Set<?> actual) {
    assertNotNull(description, actual);
    checkNotEmpty(description, actual);
  }
public void assertNotEmpty(Description description, Set<?> actual) {
    assertNotNull(description, actual);
    checkNotEmpty(description, actual);
  }
Asserts that the given {@code Set} is not empty.

@param description contains information about the assertion.
@param actual the given {@code List}.
@throws AssertionError if the given {@code Set} is {@code null}.
@throws AssertionError if the given {@code Set} is not empty.