Improve test coverage of rbac stuff

Description

Trying to improve coverage. 🥴

Related Issue

#207 (closed)

controller/api/auth_test.go

+package api
+
+import (
+	"context"
+	"reflect"
+	"testing"
+
+	apb "code.fbi.h-da.de/danet/gosdn/api/go/gosdn/rbac"
+	"code.fbi.h-da.de/danet/gosdn/controller/rbac"
+	"github.com/google/uuid"
+)
+
+func TestLogin(t *testing.T) {
+	type args struct {
+		ctx      context.Context
+		addr     string
+		username string
+		pwd      string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    *apb.LoginResponse
+		wantErr bool
+	}{
+		{
+			name: "default",
+			args: args{
+				ctx:      context.TODO(),
+				addr:     testAPIEndpoint,
+				username: "admin",
+				pwd:      "admin",
+			},
+			want: &apb.LoginResponse{
+				Status: apb.Status_STATUS_OK,
+			},
+			wantErr: false,
+		},
+	}
+
+	err := userService.Add(&rbac.User{UserID: uuid.New(), UserName: "admin", Roles: map[string]string{pndID: "admin"}, Password: "admin"})
+	if err != nil {
+		t.Errorf("Login() error = %v", err)
+		return
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := Login(tt.args.ctx, tt.args.addr, tt.args.username, tt.args.pwd)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Login() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if got.Status != apb.Status_STATUS_OK || got.Token == "" {
+				t.Errorf("Login() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestLogout(t *testing.T) {
+	type args struct {
+		ctx      context.Context
+		addr     string
+		username string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    *apb.LogoutResponse
+		wantErr bool
+	}{
+		// TODO: Add test cases.
+		// Not implemented yet!
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := Logout(tt.args.ctx, tt.args.addr, tt.args.username)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Logout() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("Logout() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}