src/main/java/org/fest/assertions/api/AbstractObjectAssert.java
public S isSameAs(A expected) {
    objects.assertSame(description, actual, expected);
    return myself;
  }
public S isSameAs(A expected) {
    objects.assertSame(description, actual, expected);
    return myself;
  }
Verifies that the <em>actual</em> value is the same as the given one.

@param expected the given value to compare the <em>actual</em> value to.
@return {@code this} assertion object.
@throws AssertionError if the <em>actual</em> value is not the same as the given one.