test: 增加 repository 测试

backend/internal/repository/identity_cache_integration_test.go

@@ -0,0 +1,67 @@
+//go:build integration
+
+package repository
+
+import (
+	"errors"
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service/ports"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type IdentityCacheSuite struct {
+	IntegrationRedisSuite
+	cache *identityCache
+}
+
+func (s *IdentityCacheSuite) SetupTest() {
+	s.IntegrationRedisSuite.SetupTest()
+	s.cache = NewIdentityCache(s.rdb).(*identityCache)
+}
+
+func (s *IdentityCacheSuite) TestGetFingerprint_Missing() {
+	_, err := s.cache.GetFingerprint(s.ctx, 1)
+	require.True(s.T(), errors.Is(err, redis.Nil), "expected redis.Nil for missing fingerprint")
+}
+
+func (s *IdentityCacheSuite) TestSetAndGetFingerprint() {
+	fp := &ports.Fingerprint{ClientID: "c1", UserAgent: "ua"}
+	require.NoError(s.T(), s.cache.SetFingerprint(s.ctx, 1, fp), "SetFingerprint")
+	gotFP, err := s.cache.GetFingerprint(s.ctx, 1)
+	require.NoError(s.T(), err, "GetFingerprint")
+	require.Equal(s.T(), "c1", gotFP.ClientID)
+	require.Equal(s.T(), "ua", gotFP.UserAgent)
+}
+
+func (s *IdentityCacheSuite) TestFingerprint_TTL() {
+	fp := &ports.Fingerprint{ClientID: "c1", UserAgent: "ua"}
+	require.NoError(s.T(), s.cache.SetFingerprint(s.ctx, 2, fp))
+
+	fpKey := fmt.Sprintf("%s%d", fingerprintKeyPrefix, 2)
+	ttl, err := s.rdb.TTL(s.ctx, fpKey).Result()
+	require.NoError(s.T(), err, "TTL fpKey")
+	s.AssertTTLWithin(ttl, 1*time.Second, fingerprintTTL)
+}
+
+func (s *IdentityCacheSuite) TestGetFingerprint_JSONCorruption() {
+	fpKey := fmt.Sprintf("%s%d", fingerprintKeyPrefix, 999)
+	require.NoError(s.T(), s.rdb.Set(s.ctx, fpKey, "invalid-json-data", 1*time.Minute).Err(), "Set invalid JSON")
+
+	_, err := s.cache.GetFingerprint(s.ctx, 999)
+	require.Error(s.T(), err, "expected error for corrupted JSON")
+	require.False(s.T(), errors.Is(err, redis.Nil), "expected decoding error, not redis.Nil")
+}
+
+func (s *IdentityCacheSuite) TestSetFingerprint_Nil() {
+	err := s.cache.SetFingerprint(s.ctx, 100, nil)
+	require.NoError(s.T(), err, "SetFingerprint(nil) should succeed")
+}
+
+func TestIdentityCacheSuite(t *testing.T) {
+	suite.Run(t, new(IdentityCacheSuite))
+}