pub fn from_file<F>(test_data_relative_file_path: &str, f: F)where
F: FnMut(&str, &mut TestCase) -> Result<(), Unspecified>,Expand description
Reads test cases out of the file with the path given by
test_data_relative_file_path, calling f on each vector until f fails
or until all the test vectors have been read. f can indicate failure
either by returning Err() or by panicking.