初始化

API/internal/worker/generation_test.go

@@ -0,0 +1,63 @@
+package worker
+
+import (
+	"testing"
+
+	"juhe-factory/api/internal/model"
+
+	"github.com/google/uuid"
+)
+
+func TestSelectFairCandidatesHonorsTotalCapacity(t *testing.T) {
+	users := make([]uuid.UUID, 50)
+	for index := range users {
+		users[index] = uuid.New()
+	}
+	candidates := make([]model.GenerationTask, 0, 501)
+	for index := 0; index < 501; index++ {
+		candidates = append(candidates, model.GenerationTask{ID: uuid.New(), UserID: users[index%len(users)]})
+	}
+	selected := selectFairCandidates(candidates, map[uuid.UUID]int{}, 500, 10)
+	if len(selected) != 500 {
+		t.Fatalf("selected %d tasks, want 500", len(selected))
+	}
+}
+
+func TestSelectFairCandidatesHonorsUserCapacity(t *testing.T) {
+	userID := uuid.New()
+	candidates := make([]model.GenerationTask, 11)
+	for index := range candidates {
+		candidates[index] = model.GenerationTask{ID: uuid.New(), UserID: userID}
+	}
+	selected := selectFairCandidates(candidates, map[uuid.UUID]int{}, 500, 10)
+	if len(selected) != 10 {
+		t.Fatalf("selected %d tasks, want 10", len(selected))
+	}
+}
+
+func TestSelectFairCandidatesRoundRobin(t *testing.T) {
+	first, second := uuid.New(), uuid.New()
+	candidates := []model.GenerationTask{
+		{ID: uuid.New(), UserID: first}, {ID: uuid.New(), UserID: first},
+		{ID: uuid.New(), UserID: second}, {ID: uuid.New(), UserID: second},
+	}
+	selected := selectFairCandidates(candidates, map[uuid.UUID]int{}, 4, 10)
+	want := []uuid.UUID{first, second, first, second}
+	for index := range want {
+		if selected[index].UserID != want[index] {
+			t.Fatalf("position %d user %s, want %s", index, selected[index].UserID, want[index])
+		}
+	}
+}
+
+// TestCanRetrySubmission 验证提交超时会自动重试，并在第五次失败后停止。
+func TestCanRetrySubmission(t *testing.T) {
+	for attempt := 1; attempt < maxSubmitAttempts; attempt++ {
+		if !canRetrySubmission(attempt) {
+			t.Fatalf("attempt %d should be retryable", attempt)
+		}
+	}
+	if canRetrySubmission(maxSubmitAttempts) {
+		t.Fatalf("attempt %d should reach retry limit", maxSubmitAttempts)
+	}
+}