public void UnmetExpectationStackTraces_ShouldOmitTraversalThroughNExpect()
{
// Arrange
// Pre-assert
// Act
UnmetExpectationException captured = null;
try
{
Expect(1)
.To.Be.Falsey();
}
catch (UnmetExpectationException ex)
{
captured = ex;
}
// Assert
Expect(captured)
.Not.To.Be.Null();
var lines = captured.StackTrace.Split(new[] { "\r", "\n" }, StringSplitOptions.RemoveEmptyEntries);
Expect(lines)
.To.Contain.Only(1)
.Item();
Expect(lines[0])
.To.Contain(nameof(UnmetExpectationStackTraces_ShouldOmitTraversalThroughNExpect));
}
public void MatcherWhichThrowsUnmetExpectationException_ShouldGetThatExactException()
{
// Arrange
// UnmetExpectationException can only be instatiated within NExpect; however, a little
// reflection can get to the internal Throw method
var method = typeof(Assertions).GetMethods(BindingFlags.Static | BindingFlags.NonPublic)
.FirstOrDefault(mi => mi.Name == "Throw" && mi.GetParameters().Length == 1);
Expect(method).Not.To.Be.Null();
UnmetExpectationException expected = null;
try
{
method.Invoke(null, new object[] { GetRandomString(10) });
}
catch (TargetInvocationException tex)
{
expected = tex.InnerException as UnmetExpectationException;
}
// Pre-assert
// Act
try
{
Expect("moo").To.Moo(expected);
}
catch (Exception ex)
{
Expect(ex).To.Be(expected);
}
// Assert
}
public static void Moo(
this ITo <string> to,
UnmetExpectationException ex)
{
to.AddMatcher(actual => throw ex);
}