github.com/containerd/Containerd@v1.4.13/cio/io_unix_test.go (about)

     1  // +build !windows
     2  
     3  /*
     4     Copyright The containerd Authors.
     5  
     6     Licensed under the Apache License, Version 2.0 (the "License");
     7     you may not use this file except in compliance with the License.
     8     You may obtain a copy of the License at
     9  
    10         http://www.apache.org/licenses/LICENSE-2.0
    11  
    12     Unless required by applicable law or agreed to in writing, software
    13     distributed under the License is distributed on an "AS IS" BASIS,
    14     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    15     See the License for the specific language governing permissions and
    16     limitations under the License.
    17  */
    18  
    19  package cio
    20  
    21  import (
    22  	"context"
    23  	"fmt"
    24  	"io/ioutil"
    25  	"os"
    26  	"path/filepath"
    27  	"testing"
    28  
    29  	"gotest.tools/v3/assert"
    30  )
    31  
    32  func TestOpenFifos(t *testing.T) {
    33  	scenarios := []*FIFOSet{
    34  		{
    35  			Config: Config{
    36  				Stdin:  "",
    37  				Stdout: filepath.Join("This/does/not/exist", "test-stdout"),
    38  				Stderr: filepath.Join("This/does/not/exist", "test-stderr"),
    39  			},
    40  		},
    41  		{
    42  			Config: Config{
    43  				Stdin:  filepath.Join("This/does/not/exist", "test-stdin"),
    44  				Stdout: "",
    45  				Stderr: filepath.Join("This/does/not/exist", "test-stderr"),
    46  			},
    47  		},
    48  		{
    49  			Config: Config{
    50  				Stdin:  "",
    51  				Stdout: "",
    52  				Stderr: filepath.Join("This/does/not/exist", "test-stderr"),
    53  			},
    54  		},
    55  	}
    56  	for _, scenario := range scenarios {
    57  		_, err := openFifos(context.Background(), scenario)
    58  		assert.Assert(t, err != nil, scenario)
    59  	}
    60  }
    61  
    62  // TestOpenFifosWithTerminal tests openFifos should not open stderr if terminal
    63  // is set.
    64  func TestOpenFifosWithTerminal(t *testing.T) {
    65  	var ctx, cancel = context.WithCancel(context.Background())
    66  	defer cancel()
    67  
    68  	ioFifoDir, err := ioutil.TempDir("", fmt.Sprintf("cio-%s", t.Name()))
    69  	if err != nil {
    70  		t.Fatalf("unexpected error during creating temp dir: %v", err)
    71  	}
    72  	defer os.RemoveAll(ioFifoDir)
    73  
    74  	cfg := Config{
    75  		Stdout: filepath.Join(ioFifoDir, "test-stdout"),
    76  		Stderr: filepath.Join(ioFifoDir, "test-stderr"),
    77  	}
    78  
    79  	// Without terminal, pipes.Stderr should not be nil
    80  	{
    81  		p, err := openFifos(ctx, NewFIFOSet(cfg, nil))
    82  		if err != nil {
    83  			t.Fatalf("unexpected error during openFifos: %v", err)
    84  		}
    85  
    86  		if p.Stderr == nil {
    87  			t.Fatalf("unexpected empty stderr pipe")
    88  		}
    89  	}
    90  
    91  	// With terminal, pipes.Stderr should be nil
    92  	{
    93  		cfg.Terminal = true
    94  		p, err := openFifos(ctx, NewFIFOSet(cfg, nil))
    95  		if err != nil {
    96  			t.Fatalf("unexpected error during openFifos: %v", err)
    97  		}
    98  
    99  		if p.Stderr != nil {
   100  			t.Fatalf("unexpected stderr pipe")
   101  		}
   102  	}
   103  }