assertErrorsWith

1 require(1 == 2).assertErrorsWith("requirement failed.");
2 require(1 == 2, "%s is not true").assertErrorsWith("%s is not true");
3 require(1 == 2, "%s is not true", "1 == 2").assertErrorsWith("1 == 2 is not true");
4 
5 require(1 == 1).assertErrorsWith("requirement failed.")
6                .assertErrorsWith("Error: No exception was thrown.");