shouldThrow

Used for asserting that a delegate will throw an exception.

void shouldThrow(void delegate() cb, string file, size_t line)
void shouldThrow(string message, void delegate() cb, string file, size_t line)
void
shouldThrow
(
string message
,
void delegate
()
cb
,
string file = __FILE__
,
size_t line = __LINE__
)

Parameters

cb void delegate (): The delegate that is expected to throw the exception.
message string: The message that is expected to be in the exception. Will not be tested, if it is null.
file string: The file name that the assert failed in. Should be left as default.
line size_t: The file line that the assert failed in. Should be left as default.

Throws

If delegate does NOT throw, will throw an AssertError.

Examples

// Makes sure it throws with the message "boom!"
shouldThrow("boom!", delegate() {
	throw new Exception("boom!");
});

// Will throw an exception like "AssertError@test/example.d(7): Exception was not thrown. Expected: boom!"
shouldThrow("boom!", delegate() {

});

Meta

Source

See Implementation

BDD functions