code.vegaprotocol.io/vega@v0.79.0/cmd/vega/commands/main_test.go (about)

     1  // Copyright (C) 2023 Gobalsky Labs Limited
     2  //
     3  // This program is free software: you can redistribute it and/or modify
     4  // it under the terms of the GNU Affero General Public License as
     5  // published by the Free Software Foundation, either version 3 of the
     6  // License, or (at your option) any later version.
     7  //
     8  // This program is distributed in the hope that it will be useful,
     9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    11  // GNU Affero General Public License for more details.
    12  //
    13  // You should have received a copy of the GNU Affero General Public License
    14  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    15  
    16  package commands
    17  
    18  import (
    19  	"context"
    20  	"fmt"
    21  	"io/ioutil"
    22  	"os"
    23  	"path/filepath"
    24  	"strings"
    25  	"testing"
    26  
    27  	vgrand "code.vegaprotocol.io/vega/libs/rand"
    28  
    29  	"github.com/stretchr/testify/require"
    30  )
    31  
    32  var (
    33  	err error
    34  	out []byte
    35  )
    36  
    37  type CommandSuite struct{}
    38  
    39  // RunMain simulates a CLI execution. It formats a cmd invocation given a format and its args and overwrites os.Args.
    40  // The output of the command is captured and returned.
    41  func (suite *CommandSuite) RunMain(ctx context.Context, format string, args ...interface{}) ([]byte, error) {
    42  	stdout := os.Stdout
    43  	stderr := os.Stderr
    44  	r, w, _ := os.Pipe()
    45  	os.Stdout = w
    46  	os.Stderr = w
    47  
    48  	cmd := fmt.Sprintf(format, args...)
    49  	fmt.Fprintf(stdout, "-> %s\n", cmd)
    50  	os.Args = append([]string{"vega"}, strings.Fields(cmd)...)
    51  	err := Main(ctx)
    52  
    53  	w.Close()
    54  	out, _ := ioutil.ReadAll(r)
    55  	fmt.Fprintf(stdout, "<- %s\n", out)
    56  	os.Stdout = stdout
    57  	os.Stderr = stderr
    58  
    59  	return out, err
    60  }
    61  
    62  // PrepareSandbox creates a sandbox directory where to run a command.
    63  // It returns the path of the new created directory and a closer function.
    64  func (suite *CommandSuite) PrepareSandbox(t *testing.T) (string, string, func()) {
    65  	t.Helper()
    66  	path := filepath.Join("/tmp", "vega-tests", "test-sandbox", vgrand.RandomStr(10))
    67  	err := os.MkdirAll(path, os.ModePerm)
    68  	if err != nil {
    69  		panic(err)
    70  	}
    71  
    72  	pass := filepath.Join(path, "passphrase")
    73  	f, err := os.Create(pass)
    74  	require.NoError(t, err)
    75  
    76  	_, err = f.WriteString("the password")
    77  	require.NoError(t, err)
    78  	f.Close()
    79  
    80  	return path, pass, func() {
    81  		os.RemoveAll(path)
    82  	}
    83  }
    84  
    85  func TestSuite(t *testing.T) {
    86  	s := &CommandSuite{}
    87  
    88  	t.Run("Faucet", s.TestFaucet)
    89  }