/*
Copyright 2017 The Kubernetes 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 benchmark

import (
	"fmt"
	"math/rand"
	"os"
	"path"
	"testing"
	"time"

	"github.com/golang/glog"
	"github.com/kubernetes-sigs/cri-tools/pkg/framework"
	"github.com/onsi/ginkgo/config"
	"github.com/onsi/ginkgo/reporters"

	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
)

// TestPerformance checks configuration parameters (specified through flags) and then runs
// benchmark tests using the Ginkgo runner.
// If a "report directory" is specified, one or more JUnit test reports will be
// generated in this directory.
func TestPerformance(t *testing.T) {
	rand.Seed(time.Now().UTC().UnixNano())
	RegisterFailHandler(Fail)
	r := []Reporter{}
	reportDir := framework.TestContext.ReportDir
	if reportDir != "" {
		// Create the directory if it doesn't already exists
		if err := os.MkdirAll(reportDir, 0755); err != nil {
			glog.Errorf("Failed creating report directory: %v", err)
		} else {
			// Configure a junit reporter to write to the directory
			junitFile := fmt.Sprintf("junit_%s%02d.xml", framework.TestContext.ReportPrefix, config.GinkgoConfig.ParallelNode)
			junitPath := path.Join(reportDir, junitFile)
			r = append(r, reporters.NewJUnitReporter(junitPath))
		}
	}
	RunSpecsWithDefaultAndCustomReporters(t, "Benchmark Test Suite", r)
}
