Function expectError [src]

This function is intended to be used only in tests. It prints diagnostics to stderr and then returns a test failure error when actual_error_union is not expected_error.

Prototype

pub fn expectError(expected_error: anyerror, actual_error_union: anytype) !void

Parameters

expected_error: anyerror

Source

  pub fn expectError(expected_error: anyerror, actual_error_union: anytype) !void {
    if (actual_error_union) |actual_payload| {
        print("expected error.{s}, found {any}\n", .{ @errorName(expected_error), actual_payload });
        return error.TestExpectedError;
    } else |actual_error| {
        if (expected_error != actual_error) {
            print("expected error.{s}, found error.{s}\n", .{
                @errorName(expected_error),
                @errorName(actual_error),
            });
            return error.TestUnexpectedError;
        }
    }
}  