github.com/rita33cool1/iot-system-gateway@v0.0.0-20200911033302-e65bde238cc5/docker-engine/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  	"github.com/gotestyourself/gotestyourself/assert"
     9  	is "github.com/gotestyourself/gotestyourself/assert/cmp"
    10  )
    11  
    12  func TestEscapeProxyRead(t *testing.T) {
    13  	escapeKeys, _ := ToBytes("DEL")
    14  	keys, _ := ToBytes("a,b,c,+")
    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("")
    23  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    24  	buf = make([]byte, len(keys))
    25  	nr, err = reader.Read(buf)
    26  	assert.Assert(t, is.ErrorContains(err, ""), "Should throw error when no keys are to read")
    27  	assert.Equal(t, nr, 0, "nr should be zero")
    28  	assert.Check(t, is.Len(keys, 0))
    29  	assert.Check(t, is.Len(buf, 0))
    30  
    31  	escapeKeys, _ = ToBytes("ctrl-x,ctrl-@")
    32  	keys, _ = ToBytes("DEL")
    33  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    34  	buf = make([]byte, len(keys))
    35  	nr, err = reader.Read(buf)
    36  	assert.NilError(t, err)
    37  	assert.Equal(t, nr, 1, fmt.Sprintf("nr %d should be equal to the number of 1", nr))
    38  	assert.DeepEqual(t, keys, buf)
    39  
    40  	escapeKeys, _ = ToBytes("ctrl-c")
    41  	keys, _ = ToBytes("ctrl-c")
    42  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    43  	buf = make([]byte, len(keys))
    44  	nr, err = reader.Read(buf)
    45  	assert.Error(t, err, "read escape sequence")
    46  	assert.Equal(t, nr, 0, "nr should be equal to 0")
    47  	assert.DeepEqual(t, keys, buf)
    48  
    49  	escapeKeys, _ = ToBytes("ctrl-c,ctrl-z")
    50  	keys, _ = ToBytes("ctrl-c,ctrl-z")
    51  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    52  	buf = make([]byte, 1)
    53  	nr, err = reader.Read(buf)
    54  	assert.NilError(t, err)
    55  	assert.Equal(t, nr, 0, "nr should be equal to 0")
    56  	assert.DeepEqual(t, keys[0:1], buf)
    57  	nr, err = reader.Read(buf)
    58  	assert.Error(t, err, "read escape sequence")
    59  	assert.Equal(t, nr, 0, "nr should be equal to 0")
    60  	assert.DeepEqual(t, keys[1:], buf)
    61  
    62  	escapeKeys, _ = ToBytes("ctrl-c,ctrl-z")
    63  	keys, _ = ToBytes("ctrl-c,DEL,+")
    64  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    65  	buf = make([]byte, 1)
    66  	nr, err = reader.Read(buf)
    67  	assert.NilError(t, err)
    68  	assert.Equal(t, nr, 0, "nr should be equal to 0")
    69  	assert.DeepEqual(t, keys[0:1], buf)
    70  	buf = make([]byte, len(keys))
    71  	nr, err = reader.Read(buf)
    72  	assert.NilError(t, err)
    73  	assert.Equal(t, nr, len(keys), fmt.Sprintf("nr should be equal to %d", len(keys)))
    74  	assert.DeepEqual(t, keys, buf)
    75  
    76  	escapeKeys, _ = ToBytes("ctrl-c,ctrl-z")
    77  	keys, _ = ToBytes("ctrl-c,DEL")
    78  	reader = NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
    79  	buf = make([]byte, 1)
    80  	nr, err = reader.Read(buf)
    81  	assert.NilError(t, err)
    82  	assert.Equal(t, nr, 0, "nr should be equal to 0")
    83  	assert.DeepEqual(t, keys[0:1], buf)
    84  	buf = make([]byte, len(keys))
    85  	nr, err = reader.Read(buf)
    86  	assert.NilError(t, err)
    87  	assert.Equal(t, nr, len(keys), fmt.Sprintf("nr should be equal to %d", len(keys)))
    88  	assert.DeepEqual(t, keys, buf)
    89  }