Function ErrorAs

assert/assertions.go:2138–2152

ErrorAs asserts that at least one of the errors in err's chain matches target, and if so, sets target to that error value. This is a wrapper for errors.As.

(t TestingT, err error, target interface{}, msgAndArgs ...interface{})

// ErrorAs asserts that at least one of the errors in err's chain matches target, and if so, sets target to that error value.
// This is a wrapper for errors.As.
func ErrorAs(t TestingT, err error, target interface{}, msgAndArgs ...interface{}) bool {
	if h, ok := t.(tHelper); ok {
		h.Helper()
	}
	if errors.As(err, target) {
		return true
	}

	chain := buildErrorChainString(err)

	return Fail(t, fmt.Sprintf("Should be in error chain:\n"+
		"expected: %q\n"+
		"in chain: %s", target, chain,
	), msgAndArgs...)
}

// NotErrorAs asserts that none of the errors in err's chain matches target,
// but if so, sets target to that error value.