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moby--moby/pkg/term/proxy_test.go

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package term // import "github.com/docker/docker/pkg/term"
import (
"bytes"
"testing"
"gotest.tools/assert"
is "gotest.tools/assert/cmp"
)
func TestEscapeProxyRead(t *testing.T) {
t.Run("no escape keys, keys a", func(t *testing.T) {
escapeKeys, _ := ToBytes("")
keys, _ := ToBytes("a")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, len(keys))
nr, err := reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, nr, len(keys))
assert.DeepEqual(t, keys, buf)
})
t.Run("no escape keys, keys a,b,c", func(t *testing.T) {
escapeKeys, _ := ToBytes("")
keys, _ := ToBytes("a,b,c")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, len(keys))
nr, err := reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, nr, len(keys))
assert.DeepEqual(t, keys, buf)
})
t.Run("no escape keys, no keys", func(t *testing.T) {
escapeKeys, _ := ToBytes("")
keys, _ := ToBytes("")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, len(keys))
nr, err := reader.Read(buf)
assert.Assert(t, is.ErrorContains(err, ""), "Should throw error when no keys are to read")
assert.Equal(t, nr, 0)
assert.Check(t, is.Len(keys, 0))
assert.Check(t, is.Len(buf, 0))
})
t.Run("DEL escape key, keys a,b,c,+", func(t *testing.T) {
escapeKeys, _ := ToBytes("DEL")
keys, _ := ToBytes("a,b,c,+")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, len(keys))
nr, err := reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, nr, len(keys))
assert.DeepEqual(t, keys, buf)
})
t.Run("DEL escape key, no keys", func(t *testing.T) {
escapeKeys, _ := ToBytes("DEL")
keys, _ := ToBytes("")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, len(keys))
nr, err := reader.Read(buf)
assert.Assert(t, is.ErrorContains(err, ""), "Should throw error when no keys are to read")
assert.Equal(t, nr, 0)
assert.Check(t, is.Len(keys, 0))
assert.Check(t, is.Len(buf, 0))
})
t.Run("ctrl-x,ctrl-@ escape key, keys DEL", func(t *testing.T) {
escapeKeys, _ := ToBytes("ctrl-x,ctrl-@")
keys, _ := ToBytes("DEL")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, len(keys))
nr, err := reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, nr, 1)
assert.DeepEqual(t, keys, buf)
})
t.Run("ctrl-c escape key, keys ctrl-c", func(t *testing.T) {
escapeKeys, _ := ToBytes("ctrl-c")
keys, _ := ToBytes("ctrl-c")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, len(keys))
nr, err := reader.Read(buf)
assert.Error(t, err, "read escape sequence")
assert.Equal(t, nr, 0)
assert.DeepEqual(t, keys, buf)
})
t.Run("ctrl-c,ctrl-z escape key, keys ctrl-c,ctrl-z", func(t *testing.T) {
escapeKeys, _ := ToBytes("ctrl-c,ctrl-z")
keys, _ := ToBytes("ctrl-c,ctrl-z")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, 1)
nr, err := reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, nr, 0)
assert.DeepEqual(t, keys[0:1], buf)
nr, err = reader.Read(buf)
assert.Error(t, err, "read escape sequence")
assert.Equal(t, nr, 0)
assert.DeepEqual(t, keys[1:], buf)
})
t.Run("ctrl-c,ctrl-z escape key, keys ctrl-c,DEL,+", func(t *testing.T) {
escapeKeys, _ := ToBytes("ctrl-c,ctrl-z")
keys, _ := ToBytes("ctrl-c,DEL,+")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, 1)
nr, err := reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, nr, 0)
assert.DeepEqual(t, keys[0:1], buf)
buf = make([]byte, len(keys))
nr, err = reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, nr, len(keys))
assert.DeepEqual(t, keys, buf)
})
t.Run("ctrl-c,ctrl-z escape key, keys ctrl-c,DEL", func(t *testing.T) {
escapeKeys, _ := ToBytes("ctrl-c,ctrl-z")
keys, _ := ToBytes("ctrl-c,DEL")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, 1)
nr, err := reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, nr, 0)
assert.DeepEqual(t, keys[0:1], buf)
buf = make([]byte, len(keys))
nr, err = reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, nr, len(keys))
assert.DeepEqual(t, keys, buf)
})
}