func TestCatalogListServices_Blocking(t *testing.T) {
	dir1, s1 := testServer(t)
	defer os.RemoveAll(dir1)
	defer s1.Shutdown()
	codec := rpcClient(t, s1)
	defer codec.Close()

	args := structs.DCSpecificRequest{
		Datacenter: "dc1",
	}
	var out structs.IndexedServices

	testutil.WaitForLeader(t, s1.RPC, "dc1")

	// Run the query
	if err := msgpackrpc.CallWithCodec(codec, "Catalog.ListServices", &args, &out); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Setup a blocking query
	args.MinQueryIndex = out.Index
	args.MaxQueryTime = time.Second

	// Async cause a change
	idx := out.Index
	start := time.Now()
	go func() {
		time.Sleep(100 * time.Millisecond)
		if err := s1.fsm.State().EnsureNode(idx+1, &structs.Node{Node: "foo", Address: "127.0.0.1"}); err != nil {
			t.Fatalf("err: %v", err)
		}
		if err := s1.fsm.State().EnsureService(idx+2, "foo", &structs.NodeService{ID: "db", Service: "db", Tags: []string{"primary"}, Address: "127.0.0.1", Port: 5000}); err != nil {
			t.Fatalf("err: %v", err)
		}
	}()

	// Re-run the query
	out = structs.IndexedServices{}
	if err := msgpackrpc.CallWithCodec(codec, "Catalog.ListServices", &args, &out); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Should block at least 100ms
	if time.Now().Sub(start) < 100*time.Millisecond {
		t.Fatalf("too fast")
	}

	// Check the indexes
	if out.Index != idx+2 {
		t.Fatalf("bad: %v", out)
	}

	// Should find the service
	if len(out.Services) != 2 {
		t.Fatalf("bad: %v", out)
	}
}
func TestCatalogListServices_Blocking(t *testing.T) {
	dir1, s1 := testServer(t)
	defer os.RemoveAll(dir1)
	defer s1.Shutdown()
	client := rpcClient(t, s1)
	defer client.Close()

	args := structs.DCSpecificRequest{
		Datacenter: "dc1",
	}
	var out structs.IndexedServices

	// Wait for leader
	time.Sleep(100 * time.Millisecond)

	// Run the query
	if err := client.Call("Catalog.ListServices", &args, &out); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Setup a blocking query
	args.MinQueryIndex = out.Index
	args.MaxQueryTime = time.Second

	// Async cause a change
	start := time.Now()
	go func() {
		time.Sleep(100 * time.Millisecond)
		s1.fsm.State().EnsureNode(1, structs.Node{"foo", "127.0.0.1"})
		s1.fsm.State().EnsureService(2, "foo", &structs.NodeService{"db", "db", []string{"primary"}, 5000})
	}()

	// Re-run the query
	out = structs.IndexedServices{}
	if err := client.Call("Catalog.ListServices", &args, &out); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Should block at least 100ms
	if time.Now().Sub(start) < 100*time.Millisecond {
		t.Fatalf("too fast")
	}

	// Check the indexes
	if out.Index != 2 {
		t.Fatalf("bad: %v", out)
	}

	// Should find the service
	if len(out.Services) != 2 {
		t.Fatalf("bad: %v", out)
	}
}
func TestCatalogListServices_Timeout(t *testing.T) {
	dir1, s1 := testServer(t)
	defer os.RemoveAll(dir1)
	defer s1.Shutdown()
	client := rpcClient(t, s1)
	defer client.Close()

	args := structs.DCSpecificRequest{
		Datacenter: "dc1",
	}
	var out structs.IndexedServices

	testutil.WaitForLeader(t, client.Call, "dc1")

	// Run the query
	if err := client.Call("Catalog.ListServices", &args, &out); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Setup a blocking query
	args.MinQueryIndex = out.Index
	args.MaxQueryTime = 100 * time.Millisecond

	// Re-run the query
	start := time.Now()
	out = structs.IndexedServices{}
	if err := client.Call("Catalog.ListServices", &args, &out); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Should block at least 100ms
	if time.Now().Sub(start) < 100*time.Millisecond {
		// TODO: Failing
		t.Fatalf("too fast")
	}

	// Check the indexes, should not change
	if out.Index != args.MinQueryIndex {
		t.Fatalf("bad: %v", out)
	}
}