Monorepo scaffolding (#16)

* Change scaffolding

* Fix gh action

common/bip68_test.go

@@ -0,0 +1,43 @@
+package common_test
+
+import (
+	"encoding/json"
+	"os"
+	"testing"
+
+	sdk "github.com/ark-network/ark/common"
+	"github.com/stretchr/testify/require"
+)
+
+func TestBIP68(t *testing.T) {
+	data, err := os.ReadFile("fixtures/bip68.json")
+	require.NoError(t, err)
+
+	var testCases []struct {
+		Input    uint   `json:"seconds"`
+		Expected int64  `json:"sequence"`
+		Desc     string `json:"description"`
+	}
+	err = json.Unmarshal(data, &testCases)
+	require.NoError(t, err)
+	require.NotEmpty(t, testCases)
+
+	for _, tc := range testCases {
+		t.Run(tc.Desc, func(t *testing.T) {
+			actual, err := sdk.BIP68Encode(tc.Input)
+			require.NoError(t, err)
+
+			var asNumber int64
+			for i := len(actual) - 1; i >= 0; i-- {
+				asNumber = asNumber<<8 | int64(actual[i])
+			}
+
+			require.Equal(t, tc.Expected, asNumber)
+
+			decoded, err := sdk.BIP68Decode(actual)
+			require.NoError(t, err)
+
+			require.Equal(t, tc.Input, decoded)
+		})
+	}
+}