add wiretrustee LOGIN command (#90)

* feature: add wiretrustee LOGIN command

* chore: add management initial connection timeout

* test: add login cmd test

* test: validate generated config in login cmd

* test: add up command test

* chore: add timeout to signal client creation method

* test: close wireguard interface once test finished

client/cmd/up_test.go

@@ -0,0 +1,110 @@
+package cmd
+
+import (
+	"errors"
+	"fmt"
+	"github.com/wiretrustee/wiretrustee/iface"
+	mgmt "github.com/wiretrustee/wiretrustee/management/server"
+	"github.com/wiretrustee/wiretrustee/util"
+	"net/url"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+var signalAddr string
+
+func TestUp_Start(t *testing.T) {
+	config := &mgmt.Config{}
+	_, err := util.ReadJson("../testdata/management.json", config)
+	if err != nil {
+		t.Fatal(err)
+	}
+	testDir := t.TempDir()
+	config.Datadir = testDir
+	err = util.CopyFileContents("../testdata/store.json", filepath.Join(testDir, "store.json"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, signalLis := startSignal(t)
+	signalAddr = signalLis.Addr().String()
+	config.Signal.URI = signalAddr
+
+	_, mgmLis := startManagement(config, t)
+	mgmAddr = mgmLis.Addr().String()
+
+}
+
+func TestUp_ShouldFail_On_NoConfig(t *testing.T) {
+
+	tempDir := t.TempDir()
+	confPath := tempDir + "/config.json"
+	mgmtURL := fmt.Sprintf("http://%s", mgmAddr)
+	rootCmd.SetArgs([]string{
+		"up",
+		"--config",
+		confPath,
+		"--management-url",
+		mgmtURL,
+	})
+	err := rootCmd.Execute()
+	if err == nil || !errors.Is(err, os.ErrNotExist) {
+		t.Errorf("expecting login command to fail on absence of config")
+	}
+}
+
+func TestUp(t *testing.T) {
+
+	defer iface.Close()
+
+	tempDir := t.TempDir()
+	confPath := tempDir + "/config.json"
+	mgmtURL, err := url.Parse("http://" + mgmAddr)
+	if err != nil {
+		t.Fatal(err)
+	}
+	rootCmd.SetArgs([]string{
+		"login",
+		"--config",
+		confPath,
+		"--setup-key",
+		"a2c8e62b-38f5-4553-b31e-dd66c696cebb",
+		"--management-url",
+		mgmtURL.String(),
+	})
+	err = rootCmd.Execute()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	rootCmd.SetArgs([]string{
+		"up",
+		"--config",
+		confPath,
+	})
+	go func() {
+		err = rootCmd.Execute()
+		if err != nil {
+			t.Errorf("expected no error while running up command, got %v", err)
+		}
+	}()
+
+	exists := false
+	for start := time.Now(); time.Since(start) < 7*time.Second; {
+		e, err := iface.Exists(iface.WgInterfaceDefault)
+		if err != nil {
+			continue
+		}
+		if *e {
+			exists = true
+			break
+		}
+
+	}
+
+	if !exists {
+		t.Errorf("expected wireguard interface %s to be created", iface.WgInterfaceDefault)
+	}
+}