/*
Copyright 2024 The Volcano 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 uthelper

import (
	"testing"
	"time"
)

// Contains compares a key in a slice and returns true if exist in it
func Contains[T comparable](elements []T, key T) bool {
	for _, v := range elements {
		if v == key {
			return true
		}
	}
	return false
}

// WaitForBinds reads exactly n items from ch within timeout and returns them.
// It fails the test if fewer than n items arrive within the timeout.
func WaitForBinds(t *testing.T, ch <-chan string, n int, timeout time.Duration) map[string]bool {
	t.Helper()
	got := make(map[string]bool, n)
	timer := time.NewTimer(timeout)
	defer timer.Stop()
	for i := 0; i < n; i++ {
		select {
		case bind := <-ch:
			got[bind] = true
		case <-timer.C:
			t.Fatalf("timeout waiting for bind #%d/%d (got so far: %v)", i+1, n, got)
		}
	}
	return got
}
