manager_test.go

// Copyright 2020 The Okteto 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 forward

import (
	"context"
	"reflect"
	"sort"
	"testing"

	"github.com/okteto/okteto/pkg/model"
)

func TestAdd(t *testing.T) {

	pf := NewPortForwardManager(context.Background(), model.Localhost, nil, nil)
	if err := pf.Add(model.Forward{Local: 10100, Remote: 1010}); err != nil {
		t.Fatal(err)
	}

	if err := pf.Add(model.Forward{Local: 10110, Remote: 1011}); err != nil {
		t.Fatal(err)
	}

	if err := pf.Add(model.Forward{Local: 10100, Remote: 1011}); err == nil {
		t.Fatal("duplicated local port didn't return an error")
	}

	if err := pf.Add(model.Forward{Local: 10120, Remote: 0, Service: true, ServiceName: "svc"}); err != nil {
		t.Fatal(err)
	}

	if len(pf.ports) != 3 {
		t.Fatalf("expected 3 ports but got %d", len(pf.ports))
	}

	if _, ok := pf.services["svc"]; !ok {
		t.Errorf("service/svc wasn't added to list: %+v", pf.services)
	}
}

func TestStop(t *testing.T) {
	pf := NewPortForwardManager(context.Background(), model.Localhost, nil, nil)
	pf.activeDev = &active{
		readyChan: make(chan struct{}, 1),
		stopChan:  make(chan struct{}, 1),
	}

	pf.activeServices = map[string]*active{
		"svc": {
			readyChan: make(chan struct{}, 1),
			stopChan:  make(chan struct{}, 1),
		},
	}

	pf.Stop()
	if !pf.stopped {
		t.Error("pf wasn't marked as stopped")
	}

	if pf.activeDev != nil {
		t.Error("pf.activeDev wasn't set to nil")
	}

	if pf.activeServices != nil {
		t.Error("pf.activeServices wasn't to nil")
	}
}

func Test_active_stop(t *testing.T) {
	tests := []struct {
		name     string
		stopChan chan struct{}
		stop     bool
	}{
		{
			name: "nil-channel",
		},
		{
			name:     "channel",
			stopChan: make(chan struct{}, 1),
		},
		{
			name:     "stopped-channel",
			stopChan: make(chan struct{}, 1),
			stop:     true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			a := &active{
				stopChan: tt.stopChan,
			}

			if tt.stop {
				a.stop()
			}

			a.stop()
		})
	}
}

func Test_active_closeReady(t *testing.T) {
	tests := []struct {
		name      string
		readyChan chan struct{}
		close     bool
	}{
		{
			name: "nil-channel",
		},
		{
			name:      "channel",
			readyChan: make(chan struct{}, 1),
		},
		{
			name:      "closed-channel",
			readyChan: make(chan struct{}, 1),
			close:     true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			a := &active{
				readyChan: tt.readyChan,
			}

			if tt.close {
				a.closeReady()
			}

			a.closeReady()
		})
	}
}

func Test_getServicePorts(t *testing.T) {
	tests := []struct {
		name     string
		forwards map[int]model.Forward
		expected []string
	}{
		{
			name: "services-with-port",
			forwards: map[int]model.Forward{
				80:   {Local: 80, Remote: 8090},
				8080: {Local: 8080, Remote: 8090, ServiceName: "svc", Service: true},
				22:   {Local: 22000, Remote: 22},
			},
			expected: []string{"8080:8090"},
		},
		{
			name: "services-with-multiple-ports",
			forwards: map[int]model.Forward{
				80:   {Local: 80, Remote: 8090},
				8080: {Local: 8080, Remote: 8090, ServiceName: "svc", Service: true},
				22:   {Local: 22000, Remote: 22},
				8089: {Local: 8089, Remote: 80890, ServiceName: "svc", Service: true},
			},
			expected: []string{"8080:8090", "8089:80890"},
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			ports := getServicePorts("svc", tt.forwards)
			sort.Strings(ports)
			if !reflect.DeepEqual(ports, tt.expected) {
				t.Errorf("Expected: %+v, Got: %+v", tt.expected, ports)
			}
		})
	}
}