Function build_err_msg

numpy/testing/_private/utils.py:231–257

(arrays, err_msg, header='Items are not equal:',
                  verbose=True, names=('ACTUAL', 'DESIRED'), precision=8)

def build_err_msg(arrays, err_msg, header='Items are not equal:',
                  verbose=True, names=('ACTUAL', 'DESIRED'), precision=8):
    msg = ['\n' + header]
    err_msg = str(err_msg)
    if err_msg:
        if err_msg.find('\n') == -1 and len(err_msg) < 79 - len(header):
            msg = [msg[0] + ' ' + err_msg]
        else:
            msg.append(err_msg)
    if verbose:
        for i, a in enumerate(arrays):

            if isinstance(a, ndarray):
                # precision argument is only needed if the objects are ndarrays
                r_func = partial(array_repr, precision=precision)
            else:
                r_func = repr

            try:
                r = r_func(a)
            except Exception as exc:
                r = f'[repr failed for <{type(a).__name__}>: {exc}]'
            if r.count('\n') > 3:
                r = '\n'.join(r.splitlines()[:3])
                r += '...'
            msg.append(f' {names[i]}: {r}')
    return '\n'.join(msg)


def assert_equal(actual, desired, err_msg='', verbose=True, *, strict=False):