基本能力编写完成

test/unit/cache_test.go

@@ -0,0 +1,108 @@
+package cache
+
+import (
+	"testing"
+
+	"github.com/gitcodestatic/gitcodestatic/internal/models"
+	"github.com/stretchr/testify/assert"
+)
+
+// TestGenerateCacheKey 测试缓存键生成
+func TestGenerateCacheKey(t *testing.T) {
+	tests := []struct {
+		name       string
+		repoID     int64
+		branch     string
+		constraint *models.StatsConstraint
+		commitHash string
+	}{
+		{
+			name:   "date_range constraint",
+			repoID: 1,
+			branch: "main",
+			constraint: &models.StatsConstraint{
+				Type: models.ConstraintTypeDateRange,
+				From: "2024-01-01",
+				To:   "2024-12-31",
+			},
+			commitHash: "abc123",
+		},
+		{
+			name:   "commit_limit constraint",
+			repoID: 1,
+			branch: "main",
+			constraint: &models.StatsConstraint{
+				Type:  models.ConstraintTypeCommitLimit,
+				Limit: 100,
+			},
+			commitHash: "abc123",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			key1 := GenerateCacheKey(tt.repoID, tt.branch, tt.constraint, tt.commitHash)
+			key2 := GenerateCacheKey(tt.repoID, tt.branch, tt.constraint, tt.commitHash)
+
+			// 相同参数应该生成相同的key
+			assert.Equal(t, key1, key2)
+			assert.NotEmpty(t, key1)
+			assert.Len(t, key1, 64) // SHA256 hex = 64 chars
+		})
+	}
+
+	// 测试不同参数生成不同的key
+	t.Run("different parameters generate different keys", func(t *testing.T) {
+		constraint := &models.StatsConstraint{
+			Type:  models.ConstraintTypeCommitLimit,
+			Limit: 100,
+		}
+
+		key1 := GenerateCacheKey(1, "main", constraint, "abc123")
+		key2 := GenerateCacheKey(1, "main", constraint, "def456") // 不同的commit hash
+		key3 := GenerateCacheKey(1, "develop", constraint, "abc123") // 不同的分支
+
+		assert.NotEqual(t, key1, key2)
+		assert.NotEqual(t, key1, key3)
+		assert.NotEqual(t, key2, key3)
+	})
+}
+
+// TestSerializeConstraint 测试约束序列化
+func TestSerializeConstraint(t *testing.T) {
+	tests := []struct {
+		name       string
+		constraint *models.StatsConstraint
+		expected   string
+	}{
+		{
+			name:       "nil constraint",
+			constraint: nil,
+			expected:   "{}",
+		},
+		{
+			name: "date_range constraint",
+			constraint: &models.StatsConstraint{
+				Type: models.ConstraintTypeDateRange,
+				From: "2024-01-01",
+				To:   "2024-12-31",
+			},
+			expected: `{"type":"date_range","from":"2024-01-01","to":"2024-12-31"}`,
+		},
+		{
+			name: "commit_limit constraint",
+			constraint: &models.StatsConstraint{
+				Type:  models.ConstraintTypeCommitLimit,
+				Limit: 100,
+			},
+			expected: `{"type":"commit_limit","limit":100}`,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := SerializeConstraint(tt.constraint)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}