func Test_BooleanEncoder_NoValues(t *testing.T) {
enc := tsm1.NewBooleanEncoder()
b, err := enc.Bytes()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
var dec tsm1.BooleanDecoder
dec.SetBytes(b)
if dec.Next() {
t.Fatalf("unexpected next value: got true, exp false")
}
}
func Test_BooleanDecoder_Corrupt(t *testing.T) {
cases := []string{
"", // Empty
"\x10\x90", // Packed: invalid count
"\x10\x7f", // Packed: count greater than remaining bits, multiple bytes expected
"\x10\x01", // Packed: count greater than remaining bits, one byte expected
}
for _, c := range cases {
var dec tsm1.BooleanDecoder
dec.SetBytes([]byte(c))
if dec.Next() {
t.Fatalf("exp next == false, got true for case %q", c)
}
}
}
func benchmarkBooleanDecoder(b *testing.B, size int) {
e := tsm1.NewBooleanEncoder()
for i := 0; i < size; i++ {
e.Write(i&1 == 1)
}
bytes, err := e.Bytes()
if err != nil {
b.Fatalf("unexpected error: %v", err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
var d tsm1.BooleanDecoder
d.SetBytes(bytes)
var n int
for d.Next() {
_ = d.Read()
n++
}
if n != size {
b.Fatalf("expected to read %d booleans, but read %d", size, n)
}
}
}
func Test_BooleanEncoder_Single(t *testing.T) {
enc := tsm1.NewBooleanEncoder()
v1 := true
enc.Write(v1)
b, err := enc.Bytes()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
var dec tsm1.BooleanDecoder
dec.SetBytes(b)
if !dec.Next() {
t.Fatalf("unexpected next value: got false, exp true")
}
if v1 != dec.Read() {
t.Fatalf("unexpected value: got %v, exp %v", dec.Read(), v1)
}
}
func Test_BooleanEncoder_Quick(t *testing.T) {
if err := quick.Check(func(values []bool) bool {
expected := values
if values == nil {
expected = []bool{}
}
// Write values to encoder.
enc := tsm1.NewBooleanEncoder()
for _, v := range values {
enc.Write(v)
}
// Retrieve compressed bytes.
buf, err := enc.Bytes()
if err != nil {
t.Fatal(err)
}
// Read values out of decoder.
got := make([]bool, 0, len(values))
var dec tsm1.BooleanDecoder
dec.SetBytes(buf)
for dec.Next() {
got = append(got, dec.Read())
}
// Verify that input and output values match.
if !reflect.DeepEqual(expected, got) {
t.Fatalf("mismatch:\n\nexp=%#v\n\ngot=%#v\n\n", expected, got)
}
return true
}, nil); err != nil {
t.Fatal(err)
}
}
func Test_BooleanEncoder_Multi_Compressed(t *testing.T) {
enc := tsm1.NewBooleanEncoder()
values := make([]bool, 10)
for i := range values {
values[i] = i%2 == 0
enc.Write(values[i])
}
b, err := enc.Bytes()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if exp := 4; len(b) != exp {
t.Fatalf("unexpected length: got %v, exp %v", len(b), exp)
}
var dec tsm1.BooleanDecoder
dec.SetBytes(b)
for i, v := range values {
if !dec.Next() {
t.Fatalf("unexpected next value: got false, exp true")
}
if v != dec.Read() {
t.Fatalf("unexpected value at pos %d: got %v, exp %v", i, dec.Read(), v)
}
}
if dec.Next() {
t.Fatalf("unexpected next value: got true, exp false")
}
}
