test(ops): 添加告警评估服务单元测试

backend/internal/service/ops_alert_evaluator_service_test.go

+//go:build unit
+
+package service
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+type stubOpsRepo struct {
+	OpsRepository
+	overview *OpsDashboardOverview
+	err      error
+}
+
+func (s *stubOpsRepo) GetDashboardOverview(ctx context.Context, filter *OpsDashboardFilter) (*OpsDashboardOverview, error) {
+	if s.err != nil {
+		return nil, s.err
+	}
+	if s.overview != nil {
+		return s.overview, nil
+	}
+	return &OpsDashboardOverview{}, nil
+}
+
+func TestComputeGroupAvailableRatio(t *testing.T) {
+	t.Parallel()
+
+	t.Run("正常情况: 10个账号, 8个可用 = 80%", func(t *testing.T) {
+		t.Parallel()
+
+		got := computeGroupAvailableRatio(&GroupAvailability{
+			TotalAccounts:  10,
+			AvailableCount: 8,
+		})
+		require.InDelta(t, 80.0, got, 0.0001)
+	})
+
+	t.Run("边界情况: TotalAccounts = 0 应返回 0", func(t *testing.T) {
+		t.Parallel()
+
+		got := computeGroupAvailableRatio(&GroupAvailability{
+			TotalAccounts:  0,
+			AvailableCount: 8,
+		})
+		require.Equal(t, 0.0, got)
+	})
+
+	t.Run("边界情况: AvailableCount = 0 应返回 0%", func(t *testing.T) {
+		t.Parallel()
+
+		got := computeGroupAvailableRatio(&GroupAvailability{
+			TotalAccounts:  10,
+			AvailableCount: 0,
+		})
+		require.Equal(t, 0.0, got)
+	})
+}
+
+func TestCountAccountsByCondition(t *testing.T) {
+	t.Parallel()
+
+	t.Run("测试限流账号统计: acc.IsRateLimited", func(t *testing.T) {
+		t.Parallel()
+
+		accounts := map[int64]*AccountAvailability{
+			1: {IsRateLimited: true},
+			2: {IsRateLimited: false},
+			3: {IsRateLimited: true},
+		}
+
+		got := countAccountsByCondition(accounts, func(acc *AccountAvailability) bool {
+			return acc.IsRateLimited
+		})
+		require.Equal(t, int64(2), got)
+	})
+
+	t.Run("测试错误账号统计（排除临时不可调度）: acc.HasError && acc.TempUnschedulableUntil == nil", func(t *testing.T) {
+		t.Parallel()
+
+		until := time.Now().UTC().Add(5 * time.Minute)
+		accounts := map[int64]*AccountAvailability{
+			1: {HasError: true},
+			2: {HasError: true, TempUnschedulableUntil: &until},
+			3: {HasError: false},
+		}
+
+		got := countAccountsByCondition(accounts, func(acc *AccountAvailability) bool {
+			return acc.HasError && acc.TempUnschedulableUntil == nil
+		})
+		require.Equal(t, int64(1), got)
+	})
+
+	t.Run("边界情况: 空 map 应返回 0", func(t *testing.T) {
+		t.Parallel()
+
+		got := countAccountsByCondition(map[int64]*AccountAvailability{}, func(acc *AccountAvailability) bool {
+			return acc.IsRateLimited
+		})
+		require.Equal(t, int64(0), got)
+	})
+}
+
+func TestComputeRuleMetricNewIndicators(t *testing.T) {
+	t.Parallel()
+
+	groupID := int64(101)
+	platform := "openai"
+
+	availability := &OpsAccountAvailability{
+		Group: &GroupAvailability{
+			GroupID:        groupID,
+			TotalAccounts:  10,
+			AvailableCount: 8,
+		},
+		Accounts: map[int64]*AccountAvailability{
+			1: {IsRateLimited: true},
+			2: {IsRateLimited: true},
+			3: {HasError: true},
+			4: {HasError: true, TempUnschedulableUntil: timePtr(time.Now().UTC().Add(2 * time.Minute))},
+			5: {HasError: false, IsRateLimited: false},
+		},
+	}
+
+	opsService := &OpsService{
+		getAccountAvailability: func(_ context.Context, _ string, _ *int64) (*OpsAccountAvailability, error) {
+			return availability, nil
+		},
+	}
+
+	svc := &OpsAlertEvaluatorService{
+		opsService: opsService,
+		opsRepo:    &stubOpsRepo{overview: &OpsDashboardOverview{}},
+	}
+
+	start := time.Now().UTC().Add(-5 * time.Minute)
+	end := time.Now().UTC()
+	ctx := context.Background()
+
+	tests := []struct {
+		name       string
+		metricType string
+		groupID    *int64
+		wantValue  float64
+		wantOK     bool
+	}{
+		{
+			name:       "group_available_accounts",
+			metricType: "group_available_accounts",
+			groupID:    &groupID,
+			wantValue:  8,
+			wantOK:     true,
+		},
+		{
+			name:       "group_available_ratio",
+			metricType: "group_available_ratio",
+			groupID:    &groupID,
+			wantValue:  80.0,
+			wantOK:     true,
+		},
+		{
+			name:       "account_rate_limited_count",
+			metricType: "account_rate_limited_count",
+			groupID:    nil,
+			wantValue:  2,
+			wantOK:     true,
+		},
+		{
+			name:       "account_error_count",
+			metricType: "account_error_count",
+			groupID:    nil,
+			wantValue:  1,
+			wantOK:     true,
+		},
+		{
+			name:       "group_available_accounts without group_id returns false",
+			metricType: "group_available_accounts",
+			groupID:    nil,
+			wantValue:  0,
+			wantOK:     false,
+		},
+		{
+			name:       "group_available_ratio without group_id returns false",
+			metricType: "group_available_ratio",
+			groupID:    nil,
+			wantValue:  0,
+			wantOK:     false,
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			rule := &OpsAlertRule{
+				MetricType: tt.metricType,
+			}
+			gotValue, gotOK := svc.computeRuleMetric(ctx, rule, nil, start, end, platform, tt.groupID)
+			require.Equal(t, tt.wantOK, gotOK)
+			if !tt.wantOK {
+				return
+			}
+			require.InDelta(t, tt.wantValue, gotValue, 0.0001)
+		})
+	}
+}