Add AllQueues method to RDB

internal/rdb/inspect.go

@@ -17,33 +17,34 @@ import (
 	"github.com/spf13/cast"
 )
 
+// AllQueues returns a list of all queue names.
+func (r *RDB) AllQueues() ([]string, error) {
+	return r.client.SMembers(base.AllQueues).Result()
+}
+
 // Stats represents a state of queues at a certain time.
 type Stats struct {
+	// Name of the queue (e.g. "default", "critical").
+	// Note: It doesn't include the prefix "asynq:queues:".
+	Name string
+	// Paused indicates whether the queue is paused.
+	// If true, tasks in the queue should not be processed.
+	Paused bool
+	// Number of tasks in each state.
 	Enqueued   int
 	InProgress int
 	Scheduled  int
 	Retry      int
 	Dead       int
+	// Total number of tasks processed during the current date.
+	// The number includes both succeeded and failed tasks.
 	Processed int
+	// Total number of tasks failed during the current date.
 	Failed int
-	Queues     []*Queue
+	// Time this stats was taken.
 	Timestamp time.Time
 }
 
-// Queue represents a task queue.
-type Queue struct {
-	// Name of the queue (e.g. "default", "critical").
-	// Note: It doesn't include the prefix "asynq:queues:".
-	Name string
-
-	// Paused indicates whether the queue is paused.
-	// If true, tasks in the queue should not be processed.
-	Paused bool
-
-	// Size is the number of tasks in the queue.
-	Size int
-}
-
 // DailyStats holds aggregate data for a given day.
 type DailyStats struct {
 	Processed int

internal/rdb/inspect_test.go

@@ -16,6 +16,34 @@ import (
 	"github.com/hibiken/asynq/internal/base"
 )
 
+func TestAllQueues(t *testing.T) {
+	r := setup(t)
+
+	tests := []struct {
+		queues []string
+	}{
+		{queues: []string{"default"}},
+		{queues: []string{"custom1", "custom2"}},
+		{queues: []string{"default", "custom1", "custom2"}},
+		{queues: []string{}},
+	}
+
+	for _, tc := range tests {
+		h.FlushDB(t, r.client)
+		if err := r.client.SAdd(base.AllQueues, tc.queues...).Err(); err != nil {
+			t.Fatal("could not initialize all queue set")
+		}
+		got, err := r.AllQueues()
+		if err != nil {
+			t.Errorf("AllQueues() returned an error: %v", err)
+			continue
+		}
+		if diff := cmp.Diff(tc.queues, got, h.SortStringSliceOpt); diff != nil {
+			t.Errorf("AllQueues() = %v, want %v; (-want, +got)\n%s", got, tc.queues, diff)
+		}
+	}
+}
+
 func TestCurrentStats(t *testing.T) {
 	r := setup(t)
 	m1 := h.NewTaskMessage("send_email", map[string]interface{}{"subject": "hello"})