1 files changed, 115 insertions, 0 deletions
diff --git a/lib/uuidv7/uuid_test.go b/lib/uuidv7/uuid_test.go
new file mode 100644
index 00000000..126945d3
--- /dev/null
+++ b/lib/uuidv7/uuid_test.go
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: BSD-3-Clause
+// SPDX-FileCopyrightText: 2026 M. Shulhan <ms@kilabit.info>
+
+package uuidv7
+
+import (
+	"testing"
+
+	"git.sr.ht/~shulhan/pakakeh.go/lib/test"
+)
+
+func TestUUID_Scan(t *testing.T) {
+	id := Parse(`019B76DA-A800-7000-8000-00000000001A`)
+
+	listCase := []struct {
+		desc     string
+		data     any
+		expError string
+		exp      string
+	}{{
+		desc:     `With empty data`,
+		data:     `017F22E2-79B0-7CC3-98C4-DC0C0C07398F`,
+		expError: `uuidv7: Scan: invalid type string`,
+		exp:      `019B76DA-A800-7000-8000-00000000001A`,
+	}, {
+		desc:     `With invalid version`,
+		data:     []byte(`5c146b14-3c52-4afd-938a-375d0df1fbf6`),
+		expError: `uuidv7: invalid version 2`,
+		exp:      `019B76DA-A800-7000-8000-00000000001A`,
+	}, {
+		desc:     `With nil`,
+		data:     nil,
+		expError: ``,
+		exp:      `00000000-0000-0000-0000-000000000000`,
+	}}
+	for _, tc := range listCase {
+		err := id.Scan(tc.data)
+		if err != nil {
+			test.Assert(t, tc.desc, tc.expError, err.Error())
+		}
+		test.Assert(t, tc.desc, tc.exp, id.String())
+	}
+}
+
+func TestUUID_UnmarshalBinary(t *testing.T) {
+	id := Parse(`019B76DA-A800-7000-8000-00000000001A`)
+
+	listCase := []struct {
+		desc     string
+		expError string
+		exp      string
+		data     []byte
+	}{{
+		desc:     `With empty data`,
+		expError: `uuidv7: invalid length 0`,
+		exp:      `019B76DA-A800-7000-8000-00000000001A`,
+	}, {
+		desc:     `With non-version 7`,
+		data:     []byte{1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 1, 2, 3, 4},
+		expError: `uuidv7: invalid version 0`,
+		exp:      `019B76DA-A800-7000-8000-00000000001A`,
+	}, {
+		desc: `OK`,
+		data: []byte{0xf, 0xf, 0xf, 0xf,
+			0xf, 0xf,
+			0x70, 0xf,
+			0xf, 0xf,
+			0xf, 0xf, 0xf, 0xf, 0xf, 0xf},
+		exp: `0F0F0F0F-0F0F-700F-0F0F-0F0F0F0F0F0F`,
+	}}
+	for _, tc := range listCase {
+		err := id.UnmarshalBinary(tc.data)
+		if err != nil {
+			test.Assert(t, tc.desc, tc.expError, err.Error())
+		}
+		test.Assert(t, tc.desc, tc.exp, id.String())
+	}
+}
+
+func TestUUID_UnmarshalText(t *testing.T) {
+	id := Parse(`019B76DA-A800-7000-8000-00000000001A`)
+
+	listCase := []struct {
+		desc     string
+		expError string
+		exp      string
+		data     []byte
+	}{{
+		desc:     `With empty data`,
+		expError: `uuidv7: invalid length 0`,
+		exp:      `019B76DA-A800-7000-8000-00000000001A`,
+	}, {
+		desc:     `With non-version 7`,
+		data:     []byte(`5c146b14-3c52-4afd-938a-375d0df1fbf6`),
+		expError: `uuidv7: invalid version 2`,
+		exp:      `019B76DA-A800-7000-8000-00000000001A`,
+	}, {
+		desc:     `With invalid hex (high)`,
+		data:     []byte(`X17F22E2-79B0-7CC3-98C4-DC0C0C07398F`),
+		expError: `uuidv7: encoding/hex: invalid byte: U+0058 'X'`,
+		exp:      `019B76DA-A800-7000-8000-00000000001A`,
+	}, {
+		desc:     `With invalid hex (low)`,
+		data:     []byte(`017F22E2-79B0-7CC3-98C4-DC0C0C07398X`),
+		expError: `uuidv7: encoding/hex: invalid byte: U+0058 'X'`,
+		exp:      `019B76DA-A800-7000-8000-00000000001A`,
+	}}
+	for _, tc := range listCase {
+		err := id.UnmarshalText(tc.data)
+		if err != nil {
+			test.Assert(t, tc.desc, tc.expError, err.Error())
+		}
+		test.Assert(t, tc.desc, tc.exp, id.String())
+	}
+}