feat: game lobby service

lobby/internal/adapters/redisstate/streamoffsetstore_test.go

@@ -0,0 +1,65 @@
+package redisstate_test
+
+import (
+	"context"
+	"testing"
+
+	"galaxy/lobby/internal/adapters/redisstate"
+
+	"github.com/alicebob/miniredis/v2"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func newOffsetStore(t *testing.T) (*redisstate.StreamOffsetStore, *miniredis.Miniredis) {
+	t.Helper()
+	server := miniredis.RunT(t)
+	client := redis.NewClient(&redis.Options{Addr: server.Addr()})
+	t.Cleanup(func() { _ = client.Close() })
+
+	store, err := redisstate.NewStreamOffsetStore(client)
+	require.NoError(t, err)
+	return store, server
+}
+
+func TestStreamOffsetStoreLoadMissing(t *testing.T) {
+	store, _ := newOffsetStore(t)
+	id, found, err := store.Load(context.Background(), "runtime_results")
+	require.NoError(t, err)
+	assert.False(t, found)
+	assert.Empty(t, id)
+}
+
+func TestStreamOffsetStoreSaveLoadRoundTrip(t *testing.T) {
+	store, _ := newOffsetStore(t)
+
+	require.NoError(t, store.Save(context.Background(), "runtime_results", "1700000000000-0"))
+
+	id, found, err := store.Load(context.Background(), "runtime_results")
+	require.NoError(t, err)
+	assert.True(t, found)
+	assert.Equal(t, "1700000000000-0", id)
+}
+
+func TestStreamOffsetStoreOverwrite(t *testing.T) {
+	store, _ := newOffsetStore(t)
+
+	require.NoError(t, store.Save(context.Background(), "runtime_results", "100-0"))
+	require.NoError(t, store.Save(context.Background(), "runtime_results", "200-0"))
+
+	id, found, err := store.Load(context.Background(), "runtime_results")
+	require.NoError(t, err)
+	assert.True(t, found)
+	assert.Equal(t, "200-0", id)
+}
+
+func TestStreamOffsetStoreRejectsInvalidArgs(t *testing.T) {
+	store, _ := newOffsetStore(t)
+
+	require.Error(t, store.Save(context.Background(), "", "100-0"))
+	require.Error(t, store.Save(context.Background(), "runtime_results", ""))
+
+	_, _, err := store.Load(context.Background(), "")
+	require.Error(t, err)
+}