expectThrows

Asserts that the expression throws the specified throwable.

expectThrows

(

T : Throwable = Exception

)

(

lazy string msg = null

string file = __FILE__

size_t line = __LINE__

)

Return Value

Type: T

the caught throwable

AssertException otherwise

1 import std.exception : enforce;
2 
3 auto exception = expectThrows(enforce(false));
4 
5 assertEquals("Enforcement failed", exception.msg);

auto exception = expectThrows!AssertException(expectThrows(42));

assertEquals("expected <Exception> was not thrown", exception.msg);