[#62] Add expiration header tests

Signed-off-by: Alex Vanin <a.vanin@yadro.com>

handlers/util_test.go

@@ -0,0 +1,165 @@
+package handlers
+
+import (
+	"math"
+	"strconv"
+	"testing"
+	"time"
+
+	objectv2 "github.com/nspcc-dev/neofs-api-go/v2/object"
+	"github.com/stretchr/testify/require"
+)
+
+func TestPrepareExpirationHeader(t *testing.T) {
+	tomorrow := time.Now().Add(24 * time.Hour)
+	tomorrowUnix := tomorrow.Unix()
+	tomorrowUnixNano := tomorrow.UnixNano()
+	tomorrowUnixMilli := tomorrowUnixNano / 1e6
+
+	epoch := "100"
+	duration := "24h"
+	timestampSec := strconv.FormatInt(tomorrowUnix, 10)
+	timestampMilli := strconv.FormatInt(tomorrowUnixMilli, 10)
+	timestampNano := strconv.FormatInt(tomorrowUnixNano, 10)
+
+	defaultDurations := &epochDurations{
+		currentEpoch:  10,
+		msPerBlock:    1000,
+		blockPerEpoch: 101,
+	}
+
+	msPerBlock := defaultDurations.blockPerEpoch * uint64(defaultDurations.msPerBlock)
+	epochPerDay := uint64((24 * time.Hour).Milliseconds()) / msPerBlock
+	if uint64((24*time.Hour).Milliseconds())%msPerBlock != 0 {
+		epochPerDay++
+	}
+
+	defaultExpEpoch := strconv.FormatUint(defaultDurations.currentEpoch+epochPerDay, 10)
+
+	for _, tc := range []struct {
+		name      string
+		headers   map[string]string
+		durations *epochDurations
+		err       bool
+		expected  map[string]string
+	}{
+		{
+			name:     "valid epoch",
+			headers:  map[string]string{objectv2.SysAttributeExpEpoch: epoch},
+			expected: map[string]string{objectv2.SysAttributeExpEpoch: epoch},
+		},
+		{
+			name: "valid epoch, valid duration",
+			headers: map[string]string{
+				objectv2.SysAttributeExpEpoch: epoch,
+				ExpirationDurationAttr:        duration,
+			},
+			durations: defaultDurations,
+			expected:  map[string]string{objectv2.SysAttributeExpEpoch: epoch},
+		},
+		{
+			name: "valid epoch, valid rfc3339",
+			headers: map[string]string{
+				objectv2.SysAttributeExpEpoch: epoch,
+				ExpirationRFC3339Attr:         tomorrow.Format(time.RFC3339),
+			},
+			durations: defaultDurations,
+			expected:  map[string]string{objectv2.SysAttributeExpEpoch: epoch},
+		},
+		{
+			name: "valid epoch, valid timestamp sec",
+			headers: map[string]string{
+				objectv2.SysAttributeExpEpoch: epoch,
+				ExpirationTimestampAttr:       timestampSec,
+			},
+			durations: defaultDurations,
+			expected:  map[string]string{objectv2.SysAttributeExpEpoch: epoch},
+		},
+		{
+			name: "valid epoch, valid timestamp milli",
+			headers: map[string]string{
+				objectv2.SysAttributeExpEpoch: epoch,
+				ExpirationTimestampAttr:       timestampMilli,
+			},
+			durations: defaultDurations,
+			expected:  map[string]string{objectv2.SysAttributeExpEpoch: epoch},
+		},
+		{
+			name: "valid epoch, valid timestamp nano",
+			headers: map[string]string{
+				objectv2.SysAttributeExpEpoch: epoch,
+				ExpirationTimestampAttr:       timestampNano,
+			},
+			durations: defaultDurations,
+			expected:  map[string]string{objectv2.SysAttributeExpEpoch: epoch},
+		},
+		{
+			name:      "valid timestamp sec",
+			headers:   map[string]string{ExpirationTimestampAttr: timestampSec},
+			durations: defaultDurations,
+			expected:  map[string]string{objectv2.SysAttributeExpEpoch: defaultExpEpoch},
+		},
+		{
+			name:      "valid duration",
+			headers:   map[string]string{ExpirationDurationAttr: duration},
+			durations: defaultDurations,
+			expected:  map[string]string{objectv2.SysAttributeExpEpoch: defaultExpEpoch},
+		},
+		{
+			name:      "valid rfc3339",
+			headers:   map[string]string{ExpirationRFC3339Attr: tomorrow.Format(time.RFC3339)},
+			durations: defaultDurations,
+			expected:  map[string]string{objectv2.SysAttributeExpEpoch: defaultExpEpoch},
+		},
+		{
+			name:    "valid max uint 64",
+			headers: map[string]string{ExpirationRFC3339Attr: tomorrow.Format(time.RFC3339)},
+			durations: &epochDurations{
+				currentEpoch:  math.MaxUint64 - 1,
+				msPerBlock:    defaultDurations.msPerBlock,
+				blockPerEpoch: defaultDurations.blockPerEpoch,
+			},
+			expected: map[string]string{objectv2.SysAttributeExpEpoch: strconv.FormatUint(uint64(math.MaxUint64), 10)},
+		},
+		{
+			name:    "invalid timestamp sec",
+			headers: map[string]string{ExpirationTimestampAttr: "abc"},
+			err:     true,
+		},
+		{
+			name:    "invalid timestamp sec zero",
+			headers: map[string]string{ExpirationTimestampAttr: "0"},
+			err:     true,
+		},
+		{
+			name:    "invalid duration",
+			headers: map[string]string{ExpirationDurationAttr: "1d"},
+			err:     true,
+		},
+		{
+			name:    "invalid duration negative",
+			headers: map[string]string{ExpirationDurationAttr: "-5h"},
+			err:     true,
+		},
+		{
+			name:    "invalid rfc3339",
+			headers: map[string]string{ExpirationRFC3339Attr: "abc"},
+			err:     true,
+		},
+		{
+			name:    "invalid rfc3339 zero",
+			headers: map[string]string{ExpirationRFC3339Attr: time.RFC3339},
+			err:     true,
+		},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			err := prepareExpirationHeader(tc.headers, tc.durations)
+			if tc.err {
+				require.Error(t, err)
+			} else {
+				require.NoError(t, err)
+				require.Equal(t, tc.expected, tc.headers)
+			}
+		})
+	}
+}