assertInstanceOf

Assert that a value is an instance of a type.

void

assertInstanceOf

(

)

(

B value

string message = "Failed asserting instance of"

string file = __FILE__

size_t line = __LINE__

)

Parameters

value B: The value used during the assertion.
message string: The error message to display.
file string: The file name where the error occurred. The value is added automatically at the call site.
line size_t: The line where the error occurred. The value is added automatically at the call site.

Throws

DUnitAssertError if the assertation fails.

Examples

interface A {}
class B : A {}
class C : B {}

auto b = new B();
auto c = new C();

b.assertInstanceOf!(Object)();
b.assertInstanceOf!(A)();
b.assertInstanceOf!(B)();

c.assertInstanceOf!(Object)();
c.assertInstanceOf!(A)();
c.assertInstanceOf!(B)();
c.assertInstanceOf!(C)();

// Assert a DUnitAssertError is thrown if assertInstanceOf fails.
b.assertInstanceOf!(C)().assertThrow!(DUnitAssertError)("Failed asserting instance of");

assertInstanceOf

Parameters

Throws

Examples

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