github.com/u-root/u-root@v7.0.1-0.20200915234505-ad7babab0a8e+incompatible/cmds/exp/pox/pox_test.go (about)

     1  // Copyright 2017-2018 the u-root Authors. All rights reserved
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  import (
     8  	"io/ioutil"
     9  	"os"
    10  	"path/filepath"
    11  	"syscall"
    12  	"testing"
    13  
    14  	"github.com/u-root/u-root/pkg/testutil"
    15  )
    16  
    17  var (
    18  	uskip = len("2018/08/10 21:20:42 ")
    19  )
    20  
    21  func TestSimple(t *testing.T) {
    22  	if os.Getuid() != 0 {
    23  		t.Skip("Must be root for this test")
    24  	}
    25  
    26  	tmpDir, err := ioutil.TempDir("", "pox")
    27  	if err != nil {
    28  		t.Fatal(err)
    29  	}
    30  	defer os.RemoveAll(tmpDir)
    31  	f := filepath.Join(tmpDir, "x.tcz")
    32  	var tests = []struct {
    33  		args   []string
    34  		name   string
    35  		status int
    36  		out    string
    37  		skip   int
    38  		stdin  *testutil.FakeStdin
    39  	}{
    40  		//		  -c, --create          create it (default true)
    41  		//  -d, --debug           enable debug prints
    42  		//  -o, --output string   Output file (default "/tmp/pox.tcz")
    43  		//  -t, --test            run a test with the first argument
    44  		{
    45  			args:   []string{"-c", "-f", f, "bin/bash"},
    46  			name:   "Bad Executable",
    47  			status: 1,
    48  			out:    "Running ldd on [bin/bash]: lstat bin/bash: no such file or directory \n",
    49  			skip:   uskip,
    50  		},
    51  		{
    52  			args:   []string{"-c", "-f", f, "/bin/bash"},
    53  			name:   "Build",
    54  			status: 0,
    55  			out:    "",
    56  			skip:   uskip,
    57  		},
    58  		{
    59  			args:   []string{"-r", "-f", f, "/bin/bash"},
    60  			name:   "",
    61  			status: 0,
    62  			out:    "",
    63  			skip:   uskip,
    64  		},
    65  		{
    66  			args:   []string{"-r", "-f", f, "--", "/bin/bash", "-c", "echo hi"},
    67  			name:   "",
    68  			status: 0,
    69  			out:    "",
    70  			skip:   uskip,
    71  		},
    72  	}
    73  
    74  	// Table-driven testing
    75  	for _, tt := range tests {
    76  		t.Run(tt.name, func(t *testing.T) {
    77  			c := testutil.Command(t, tt.args...)
    78  			// ignore the error, we deal with it via process status,
    79  			// and most of these commands are supposed to get an error.
    80  			out, _ := c.CombinedOutput()
    81  			status := c.ProcessState.Sys().(syscall.WaitStatus).ExitStatus()
    82  			if tt.status == status && len(tt.out) == 0 {
    83  				return
    84  			}
    85  			if tt.status != status {
    86  				t.Errorf("err got: %v want %v", status, tt.status)
    87  			}
    88  			if len(out) < tt.skip {
    89  				t.Errorf("err got: %v wanted at least %d bytes", string(out), tt.skip)
    90  				return
    91  			}
    92  			m := string(out[tt.skip:])
    93  			if m != tt.out {
    94  				t.Errorf("got:'%q'(%d bytes) want:'%q'(%d bytes)", m, len(m), tt.out, len(tt.out))
    95  			}
    96  		})
    97  	}
    98  }
    99  
   100  func TestMain(m *testing.M) {
   101  	testutil.Run(m, main)
   102  }