Function ErrorIs

internal/testify/assert/assertions.go:2017–2036

ErrorIs asserts that at least one of the errors in err's chain matches target. This is a wrapper for errors.Is.

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

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

	var expectedText string
	if target != nil {
		expectedText = target.Error()
	}

	chain := buildErrorChainString(err)

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

// NotErrorIs asserts that at none of the errors in err's chain matches target.
// This is a wrapper for errors.Is.