github.com/zhouyu0/docker-note@v0.0.0-20190722021225-b8d3825084db/pkg/term/proxy_test.go (about)

     1  package term // import "github.com/docker/docker/pkg/term"
     2  
     3  import (
     4  	"bytes"
     5  	"fmt"
     6  	"testing"
     7  
     8  	"gotest.tools/assert"
     9  	is "gotest.tools/assert/cmp"
    10  )
    11  
    12  func TestEscapeProxyRead(t *testing.T) {
    13  	escapeKeys, _ := ToBytes("")
    14  	keys, _ := ToBytes("a")
    15  	reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    16  	buf := make([]byte, len(keys))
    17  	nr, err := reader.Read(buf)
    18  	assert.NilError(t, err)
    19  	assert.Equal(t, nr, len(keys), fmt.Sprintf("nr %d should be equal to the number of %d", nr, len(keys)))
    20  	assert.DeepEqual(t, keys, buf)
    21  
    22  	keys, _ = ToBytes("a,b,c")
    23  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    24  	buf = make([]byte, len(keys))
    25  	nr, err = reader.Read(buf)
    26  	assert.NilError(t, err)
    27  	assert.Equal(t, nr, len(keys), fmt.Sprintf("nr %d should be equal to the number of %d", nr, len(keys)))
    28  	assert.DeepEqual(t, keys, buf)
    29  
    30  	keys, _ = ToBytes("")
    31  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    32  	buf = make([]byte, len(keys))
    33  	nr, err = reader.Read(buf)
    34  	assert.Assert(t, is.ErrorContains(err, ""), "Should throw error when no keys are to read")
    35  	assert.Equal(t, nr, 0, "nr should be zero")
    36  	assert.Check(t, is.Len(keys, 0))
    37  	assert.Check(t, is.Len(buf, 0))
    38  
    39  	escapeKeys, _ = ToBytes("DEL")
    40  	keys, _ = ToBytes("a,b,c,+")
    41  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    42  	buf = make([]byte, len(keys))
    43  	nr, err = reader.Read(buf)
    44  	assert.NilError(t, err)
    45  	assert.Equal(t, nr, len(keys), fmt.Sprintf("nr %d should be equal to the number of %d", nr, len(keys)))
    46  	assert.DeepEqual(t, keys, buf)
    47  
    48  	keys, _ = ToBytes("")
    49  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    50  	buf = make([]byte, len(keys))
    51  	nr, err = reader.Read(buf)
    52  	assert.Assert(t, is.ErrorContains(err, ""), "Should throw error when no keys are to read")
    53  	assert.Equal(t, nr, 0, "nr should be zero")
    54  	assert.Check(t, is.Len(keys, 0))
    55  	assert.Check(t, is.Len(buf, 0))
    56  
    57  	escapeKeys, _ = ToBytes("ctrl-x,ctrl-@")
    58  	keys, _ = ToBytes("DEL")
    59  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    60  	buf = make([]byte, len(keys))
    61  	nr, err = reader.Read(buf)
    62  	assert.NilError(t, err)
    63  	assert.Equal(t, nr, 1, fmt.Sprintf("nr %d should be equal to the number of 1", nr))
    64  	assert.DeepEqual(t, keys, buf)
    65  
    66  	escapeKeys, _ = ToBytes("ctrl-c")
    67  	keys, _ = ToBytes("ctrl-c")
    68  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    69  	buf = make([]byte, len(keys))
    70  	nr, err = reader.Read(buf)
    71  	assert.Error(t, err, "read escape sequence")
    72  	assert.Equal(t, nr, 0, "nr should be equal to 0")
    73  	assert.DeepEqual(t, keys, buf)
    74  
    75  	escapeKeys, _ = ToBytes("ctrl-c,ctrl-z")
    76  	keys, _ = ToBytes("ctrl-c,ctrl-z")
    77  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    78  	buf = make([]byte, 1)
    79  	nr, err = reader.Read(buf)
    80  	assert.NilError(t, err)
    81  	assert.Equal(t, nr, 0, "nr should be equal to 0")
    82  	assert.DeepEqual(t, keys[0:1], buf)
    83  	nr, err = reader.Read(buf)
    84  	assert.Error(t, err, "read escape sequence")
    85  	assert.Equal(t, nr, 0, "nr should be equal to 0")
    86  	assert.DeepEqual(t, keys[1:], buf)
    87  
    88  	escapeKeys, _ = ToBytes("ctrl-c,ctrl-z")
    89  	keys, _ = ToBytes("ctrl-c,DEL,+")
    90  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    91  	buf = make([]byte, 1)
    92  	nr, err = reader.Read(buf)
    93  	assert.NilError(t, err)
    94  	assert.Equal(t, nr, 0, "nr should be equal to 0")
    95  	assert.DeepEqual(t, keys[0:1], buf)
    96  	buf = make([]byte, len(keys))
    97  	nr, err = reader.Read(buf)
    98  	assert.NilError(t, err)
    99  	assert.Equal(t, nr, len(keys), fmt.Sprintf("nr should be equal to %d", len(keys)))
   100  	assert.DeepEqual(t, keys, buf)
   101  
   102  	escapeKeys, _ = ToBytes("ctrl-c,ctrl-z")
   103  	keys, _ = ToBytes("ctrl-c,DEL")
   104  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
   105  	buf = make([]byte, 1)
   106  	nr, err = reader.Read(buf)
   107  	assert.NilError(t, err)
   108  	assert.Equal(t, nr, 0, "nr should be equal to 0")
   109  	assert.DeepEqual(t, keys[0:1], buf)
   110  	buf = make([]byte, len(keys))
   111  	nr, err = reader.Read(buf)
   112  	assert.NilError(t, err)
   113  	assert.Equal(t, nr, len(keys), fmt.Sprintf("nr should be equal to %d", len(keys)))
   114  	assert.DeepEqual(t, keys, buf)
   115  }