package agherr import ( "errors" "fmt" "testing" "github.com/AdguardTeam/AdGuardHome/internal/testutil" "github.com/stretchr/testify/assert" ) func TestMain(m *testing.M) { testutil.DiscardLogOutput(m) } func TestError_Error(t *testing.T) { testCases := []struct { name string want string err error }{{ name: "simple", want: "a", err: Many("a"), }, { name: "wrapping", want: "a: b", err: Many("a", errors.New("b")), }, { name: "wrapping several", want: "a: b (hidden: c, d)", err: Many("a", errors.New("b"), errors.New("c"), errors.New("d")), }, { name: "wrapping wrapper", want: "a: b: c (hidden: d)", err: Many("a", Many("b", errors.New("c"), errors.New("d"))), }} for _, tc := range testCases { assert.Equal(t, tc.want, tc.err.Error(), tc.name) } } func TestError_Unwrap(t *testing.T) { const ( errSimple = iota errWrapped errNil ) errs := []error{ errSimple: errors.New("a"), errWrapped: fmt.Errorf("%w", errors.New("nested")), errNil: nil, } testCases := []struct { name string want error wrapped error }{{ name: "simple", want: errs[errSimple], wrapped: Many("a", errs[errSimple]), }, { name: "nested", want: errs[errWrapped], wrapped: Many("b", errs[errWrapped]), }, { name: "nil passed", want: errs[errNil], wrapped: Many("c", errs[errNil]), }, { name: "nil not passed", want: nil, wrapped: Many("d"), }} for _, tc := range testCases { assert.Equal(t, tc.want, errors.Unwrap(tc.wrapped), tc.name) } }