src/main/java/org/fest/assertions/internal/Characters.java
public void assertLessThan(Description description, Character actual, char other) {
    assertNotNull(description, actual);
    if (!isLessThan(actual, other)) {
      throw failures.failure(description, shouldBeLessThan(actual, other));
    }
  }
public void assertLessThan(Description description, Character actual, char other) {
    assertNotNull(description, actual);
    if (!isLessThan(actual, other)) {
      throw failures.failure(description, shouldBeLessThan(actual, other));
    }
  }
Asserts that the actual value is less than the other one.

@param description contains information about the assertion.
@param actual the actual value.
@param other the value to compare the actual value to.
@throws AssertionError if the actual value is {@code null}.
@throws AssertionError if the actual value is not less than the other one: this assertion will fail if the actual
value is equal to or greater than the other value.