github.com/devdivbcp/moby@v17.12.0-ce-rc1.0.20200726071732-2d4bfdc789ad+incompatible/pkg/term/proxy_test.go (about)

     1  package term // import "github.com/docker/docker/pkg/term"
     2  
     3  import (
     4  	"bytes"
     5  	"testing"
     6  
     7  	"gotest.tools/assert"
     8  	is "gotest.tools/assert/cmp"
     9  )
    10  
    11  func TestEscapeProxyRead(t *testing.T) {
    12  	t.Run("no escape keys, keys a", func(t *testing.T) {
    13  		escapeKeys, _ := ToBytes("")
    14  		keys, _ := ToBytes("a")
    15  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    16  
    17  		buf := make([]byte, len(keys))
    18  		nr, err := reader.Read(buf)
    19  		assert.NilError(t, err)
    20  		assert.Equal(t, nr, len(keys))
    21  		assert.DeepEqual(t, keys, buf)
    22  	})
    23  
    24  	t.Run("no escape keys, keys a,b,c", func(t *testing.T) {
    25  		escapeKeys, _ := ToBytes("")
    26  		keys, _ := ToBytes("a,b,c")
    27  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    28  
    29  		buf := make([]byte, len(keys))
    30  		nr, err := reader.Read(buf)
    31  		assert.NilError(t, err)
    32  		assert.Equal(t, nr, len(keys))
    33  		assert.DeepEqual(t, keys, buf)
    34  	})
    35  
    36  	t.Run("no escape keys, no keys", func(t *testing.T) {
    37  		escapeKeys, _ := ToBytes("")
    38  		keys, _ := ToBytes("")
    39  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    40  
    41  		buf := make([]byte, len(keys))
    42  		nr, err := reader.Read(buf)
    43  		assert.Assert(t, is.ErrorContains(err, ""), "Should throw error when no keys are to read")
    44  		assert.Equal(t, nr, 0)
    45  		assert.Check(t, is.Len(keys, 0))
    46  		assert.Check(t, is.Len(buf, 0))
    47  	})
    48  
    49  	t.Run("DEL escape key, keys a,b,c,+", func(t *testing.T) {
    50  		escapeKeys, _ := ToBytes("DEL")
    51  		keys, _ := ToBytes("a,b,c,+")
    52  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    53  
    54  		buf := make([]byte, len(keys))
    55  		nr, err := reader.Read(buf)
    56  		assert.NilError(t, err)
    57  		assert.Equal(t, nr, len(keys))
    58  		assert.DeepEqual(t, keys, buf)
    59  	})
    60  
    61  	t.Run("DEL escape key, no keys", func(t *testing.T) {
    62  		escapeKeys, _ := ToBytes("DEL")
    63  		keys, _ := ToBytes("")
    64  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    65  
    66  		buf := make([]byte, len(keys))
    67  		nr, err := reader.Read(buf)
    68  		assert.Assert(t, is.ErrorContains(err, ""), "Should throw error when no keys are to read")
    69  		assert.Equal(t, nr, 0)
    70  		assert.Check(t, is.Len(keys, 0))
    71  		assert.Check(t, is.Len(buf, 0))
    72  	})
    73  
    74  	t.Run("ctrl-x,ctrl-@ escape key, keys DEL", func(t *testing.T) {
    75  		escapeKeys, _ := ToBytes("ctrl-x,ctrl-@")
    76  		keys, _ := ToBytes("DEL")
    77  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    78  
    79  		buf := make([]byte, len(keys))
    80  		nr, err := reader.Read(buf)
    81  		assert.NilError(t, err)
    82  		assert.Equal(t, nr, 1)
    83  		assert.DeepEqual(t, keys, buf)
    84  	})
    85  
    86  	t.Run("ctrl-c escape key, keys ctrl-c", func(t *testing.T) {
    87  		escapeKeys, _ := ToBytes("ctrl-c")
    88  		keys, _ := ToBytes("ctrl-c")
    89  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    90  
    91  		buf := make([]byte, len(keys))
    92  		nr, err := reader.Read(buf)
    93  		assert.Error(t, err, "read escape sequence")
    94  		assert.Equal(t, nr, 0)
    95  		assert.DeepEqual(t, keys, buf)
    96  	})
    97  
    98  	t.Run("ctrl-c,ctrl-z escape key, keys ctrl-c,ctrl-z", func(t *testing.T) {
    99  		escapeKeys, _ := ToBytes("ctrl-c,ctrl-z")
   100  		keys, _ := ToBytes("ctrl-c,ctrl-z")
   101  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
   102  
   103  		buf := make([]byte, 1)
   104  		nr, err := reader.Read(buf)
   105  		assert.NilError(t, err)
   106  		assert.Equal(t, nr, 0)
   107  		assert.DeepEqual(t, keys[0:1], buf)
   108  
   109  		nr, err = reader.Read(buf)
   110  		assert.Error(t, err, "read escape sequence")
   111  		assert.Equal(t, nr, 0)
   112  		assert.DeepEqual(t, keys[1:], buf)
   113  	})
   114  
   115  	t.Run("ctrl-c,ctrl-z escape key, keys ctrl-c,DEL,+", func(t *testing.T) {
   116  		escapeKeys, _ := ToBytes("ctrl-c,ctrl-z")
   117  		keys, _ := ToBytes("ctrl-c,DEL,+")
   118  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
   119  
   120  		buf := make([]byte, 1)
   121  		nr, err := reader.Read(buf)
   122  		assert.NilError(t, err)
   123  		assert.Equal(t, nr, 0)
   124  		assert.DeepEqual(t, keys[0:1], buf)
   125  
   126  		buf = make([]byte, len(keys))
   127  		nr, err = reader.Read(buf)
   128  		assert.NilError(t, err)
   129  		assert.Equal(t, nr, len(keys))
   130  		assert.DeepEqual(t, keys, buf)
   131  	})
   132  
   133  	t.Run("ctrl-c,ctrl-z escape key, keys ctrl-c,DEL", func(t *testing.T) {
   134  		escapeKeys, _ := ToBytes("ctrl-c,ctrl-z")
   135  		keys, _ := ToBytes("ctrl-c,DEL")
   136  		reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
   137  
   138  		buf := make([]byte, 1)
   139  		nr, err := reader.Read(buf)
   140  		assert.NilError(t, err)
   141  		assert.Equal(t, nr, 0)
   142  		assert.DeepEqual(t, keys[0:1], buf)
   143  
   144  		buf = make([]byte, len(keys))
   145  		nr, err = reader.Read(buf)
   146  		assert.NilError(t, err)
   147  		assert.Equal(t, nr, len(keys))
   148  		assert.DeepEqual(t, keys, buf)
   149  	})
   150  
   151  }