1 files changed, 150 insertions, 0 deletions
diff --git a/encoding_test.go b/encoding_test.go
new file mode 100644
index 0000000..d48d2fd
--- /dev/null
+++ b/encoding_test.go
@@ -0,0 +1,150 @@
+package cache
+
+import (
+	"bytes"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestEncodeDecodeUint64(t *testing.T) {
+	tests := []struct {
+		name  string
+		value uint64
+	}{
+		{name: "Positive", value: 1234567890},
+		{name: "Zero", value: 0},
+		{name: "Max", value: ^uint64(0)},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var buf bytes.Buffer
+			e := newEncoder(&buf)
+
+			err := e.EncodeUint64(tt.value)
+			assert.NoError(t, err)
+			err = e.Flush()
+			assert.NoError(t, err)
+
+			decoder := newDecoder(bytes.NewReader(buf.Bytes()))
+
+			decodedValue, err := decoder.DecodeUint64()
+			assert.NoError(t, err)
+
+			assert.Equal(t, tt.value, decodedValue)
+		})
+	}
+}
+
+func TestEncodeDecodeTime(t *testing.T) {
+	tests := []struct {
+		name  string
+		value time.Time
+	}{
+		{name: "Time Now", value: time.Now()},
+		{name: "Time Zero", value: time.Time{}},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var buf bytes.Buffer
+			e := newEncoder(&buf)
+
+			err := e.EncodeTime(tt.value)
+			assert.NoError(t, err)
+			err = e.Flush()
+			assert.NoError(t, err)
+
+			decoder := newDecoder(bytes.NewReader(buf.Bytes()))
+
+			decodedValue, err := decoder.DecodeTime()
+			assert.NoError(t, err)
+
+			assert.WithinDuration(t, tt.value, decodedValue, time.Second)
+		})
+	}
+}
+
+func TestEncodeDecodeBytes(t *testing.T) {
+	tests := []struct {
+		name  string
+		value []byte
+	}{
+		{name: "Empty", value: []byte{}},
+		{name: "Non-Empty", value: []byte("hello world")},
+		{name: "Bytes Large", value: []byte("A very long string of characters to test large data")},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var buf bytes.Buffer
+			e := newEncoder(&buf)
+
+			err := e.EncodeBytes(tt.value)
+			assert.NoError(t, err)
+			err = e.Flush()
+			assert.NoError(t, err)
+
+			decoder := newDecoder(bytes.NewReader(buf.Bytes()))
+
+			decodedValue, err := decoder.DecodeBytes()
+			assert.NoError(t, err)
+
+			assert.Equal(t, tt.value, decodedValue)
+		})
+	}
+}
+
+func TestEncodeDecodeNode(t *testing.T) {
+	tests := []struct {
+		name  string
+		value *node
+	}{
+		{name: "Empty", value: &node{
+			Hash:       1234567890,
+			Expiration: time.Now(),
+			Access:     987654321,
+			Key:        []byte("testKey"),
+			Value:      []byte("testValue"),
+		}},
+		{name: "Non-Empty", value: &node{
+			Hash:       1234567890,
+			Expiration: time.Now(),
+			Access:     987654321,
+			Key:        []byte("testKey"),
+			Value:      []byte("testValue"),
+		}},
+		{name: "Bytes Large", value: &node{
+			Hash:       1234567890,
+			Expiration: time.Now(),
+			Access:     987654321,
+			Key:        []byte("testKey"),
+			Value:      []byte("testValue"),
+		}},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var buf bytes.Buffer
+			e := newEncoder(&buf)
+
+			err := e.EncodeNode(tt.value)
+			assert.NoError(t, err)
+			err = e.Flush()
+			assert.NoError(t, err)
+
+			decoder := newDecoder(bytes.NewReader(buf.Bytes()))
+
+			decodedValue, err := decoder.DecodeNodes()
+			assert.NoError(t, err)
+
+			assert.Equal(t, tt.value.Hash, decodedValue.Hash)
+			assert.WithinDuration(t, tt.value.Expiration, decodedValue.Expiration, 1*time.Second)
+			assert.Equal(t, tt.value.Access, decodedValue.Access)
+			assert.Equal(t, tt.value.Key, decodedValue.Key)
+			assert.Equal(t, tt.value.Value, decodedValue.Value)
+		})
+	}
+}