// Copyright 2018 Google Inc.
//
// 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 image

import (
	"fmt"
	"net/http"
	"testing"
	"time"

	"gvisor.googlesource.com/gvisor/runsc/test/testutil"
)

func TestPythonHello(t *testing.T) {
	if err := testutil.Pull("google/python-hello"); err != nil {
		t.Fatalf("docker pull failed: %v", err)
	}
	d := testutil.MakeDocker("python-hello-test")
	if _, err := d.Run("-p", "8080", "google/python-hello"); err != nil {
		t.Fatalf("docker run failed: %v", err)
	}
	defer d.CleanUp()

	// Find where port 8080 is mapped to.
	port, err := d.FindPort(8080)
	if err != nil {
		t.Fatalf("docker.FindPort(8080) failed: %v", err)
	}

	// Wait until it's up and running.
	if err := testutil.WaitForHTTP(port, 10*time.Second); err != nil {
		t.Fatalf("WaitForHTTP() timeout: %v", err)
	}

	// Ensure that content is being served.
	url := fmt.Sprintf("http://localhost:%d", port)
	resp, err := http.Get(url)
	if err != nil {
		t.Errorf("Error reaching http server: %v", err)
	}
	if want := http.StatusOK; resp.StatusCode != want {
		t.Errorf("Wrong response code, got: %d, want: %d", resp.StatusCode, want)
	}
}