empty_waiter_test.go

// Copyright 2021 The ZKits Project Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package runner

import (
	"testing"
)

func TestEmptyWaiter(t *testing.T) {
	if EmptyReceiptableWaiter() == nil {
		t.Fatal("EmptyReceiptableWaiter(): nil")
	}

	var n int
	select {
	case <-EmptyReceiptableWaiter().Channel():
		n++
	default:
	}

	if n != 1 {
		t.Fatalf("EmptyReceiptableWaiter().Channel(): %d", n)
	}
}