package term
import (
"bytes"
"testing"
"gotest.tools/v3/assert"
is "gotest.tools/v3/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,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, 2)
nr, err := reader.Read(buf)
assert.Error(t, err, "read escape sequence")
assert.Equal(t, nr, 0, "nr should be equal to 0")
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)
})
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("a,b,c,d escape key, keys [a,b],[c,d]", func(t *testing.T) {
escapeKeys, _ := ToBytes("a,b,c,d")
keys, _ := ToBytes("a,b,c,d")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, 2)
nr, err := reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, 0, nr)
assert.DeepEqual(t, keys[0:2], buf)
buf = make([]byte, 2)
nr, err = reader.Read(buf)
assert.Error(t, err, "read escape sequence")
assert.Equal(t, 0, nr)
assert.DeepEqual(t, keys[2:4], buf)
})
t.Run("ctrl-p,ctrl-q escape key, keys [ctrl-p],[a],[ctrl-p,ctrl-q]", func(t *testing.T) {
escapeKeys, _ := ToBytes("ctrl-p,ctrl-q")
keys, _ := ToBytes("ctrl-p,a,ctrl-p,ctrl-q")
reader := NewEscapeProxy(bytes.NewReader(keys), escapeKeys)
buf := make([]byte, 1)
nr, err := reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, 0, nr)
buf = make([]byte, 1)
nr, err = reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, 1, nr)
assert.DeepEqual(t, keys[:1], buf)
buf = make([]byte, 2)
nr, err = reader.Read(buf)
assert.NilError(t, err)
assert.Equal(t, 1, nr)
assert.DeepEqual(t, keys[1:3], buf)
buf = make([]byte, 2)
nr, err = reader.Read(buf)
assert.Error(t, err, "read escape sequence")
assert.Equal(t, 0, nr)
})
}