func Test_Int64Encoder_Quick(t *testing.T) {
quick.Check(func(values []int64) bool {
// Write values to encoder.
enc := tsm1.NewInt64Encoder()
for _, v := range values {
enc.Write(v)
}
// Retrieve encoded bytes from encoder.
buf, err := enc.Bytes()
if err != nil {
t.Fatal(err)
}
// Read values out of decoder.
got := make([]int64, 0, len(values))
dec := tsm1.NewInt64Decoder(buf)
for dec.Next() {
if err := dec.Error(); err != nil {
t.Fatal(err)
}
got = append(got, dec.Read())
}
// Verify that input and output values match.
if !reflect.DeepEqual(values, got) {
t.Fatalf("mismatch:\n\nexp=%+v\n\ngot=%+v\n\n", values, got)
}
return true
}, nil)
}
func Test_Int64Encoder_Two(t *testing.T) {
enc := tsm1.NewInt64Encoder()
var v1, v2 int64 = 1, 2
enc.Write(v1)
enc.Write(v2)
b, err := enc.Bytes()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
dec := tsm1.NewInt64Decoder(b)
if !dec.Next() {
t.Fatalf("unexpected next value: got true, exp false")
}
if v1 != dec.Read() {
t.Fatalf("read value mismatch: got %v, exp %v", dec.Read(), v1)
}
if !dec.Next() {
t.Fatalf("unexpected next value: got true, exp false")
}
if v2 != dec.Read() {
t.Fatalf("read value mismatch: got %v, exp %v", dec.Read(), v2)
}
}
func Test_Int64Encoder_AllNegative(t *testing.T) {
enc := tsm1.NewInt64Encoder()
values := []int64{
-10, -5, -1,
}
for _, v := range values {
enc.Write(v)
}
b, err := enc.Bytes()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
dec := tsm1.NewInt64Decoder(b)
i := 0
for dec.Next() {
if i > len(values) {
t.Fatalf("read too many values: got %v, exp %v", i, len(values))
}
if values[i] != dec.Read() {
t.Fatalf("read value %d mismatch: got %v, exp %v", i, dec.Read(), values[i])
}
i += 1
}
if i != len(values) {
t.Fatalf("failed to read enough values: got %v, exp %v", i, len(values))
}
}
func Test_Int64Encoder_NoValues(t *testing.T) {
enc := tsm1.NewInt64Encoder()
b, err := enc.Bytes()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
dec := tsm1.NewInt64Decoder(b)
if dec.Next() {
t.Fatalf("unexpected next value: got true, exp false")
}
}
func BenchmarkInt64Decoder(b *testing.B) {
x := make([]int64, 1024)
enc := tsm1.NewInt64Encoder()
for i := 0; i < len(x); i++ {
x[i] = int64(i)
enc.Write(x[i])
}
bytes, _ := enc.Bytes()
b.ResetTimer()
dec := tsm1.NewInt64Decoder(bytes)
for i := 0; i < b.N; i++ {
dec.(byteSetter).SetBytes(bytes)
for dec.Next() {
}
}
}
func Test_Int64Encoder_Uncompressed(t *testing.T) {
enc := tsm1.NewInt64Encoder()
var v1, v2, v3 int64 = 0, 1, 1 << 60
enc.Write(v1)
enc.Write(v2)
enc.Write(v3)
b, err := enc.Bytes()
if err != nil {
t.Fatalf("expected error: %v", err)
}
// 1 byte header + 3 * 8 byte values
if exp := 25; len(b) != exp {
t.Fatalf("length mismatch: got %v, exp %v", len(b), exp)
}
dec := tsm1.NewInt64Decoder(b)
if !dec.Next() {
t.Fatalf("unexpected next value: got true, exp false")
}
if v1 != dec.Read() {
t.Fatalf("read value mismatch: got %v, exp %v", dec.Read(), v1)
}
if !dec.Next() {
t.Fatalf("unexpected next value: got true, exp false")
}
if v2 != dec.Read() {
t.Fatalf("read value mismatch: got %v, exp %v", dec.Read(), v2)
}
if !dec.Next() {
t.Fatalf("unexpected next value: got true, exp false")
}
if v3 != dec.Read() {
t.Fatalf("read value mismatch: got %v, exp %v", dec.Read(), v3)
}
}
func Test_Int64Encoder_NegativeUncompressed(t *testing.T) {
values := []int64{
-2352281900722994752, 1438442655375607923, -4110452567888190110,
-1221292455668011702, -1941700286034261841, -2836753127140407751,
1432686216250034552, 3663244026151507025, -3068113732684750258,
-1949953187327444488, 3713374280993588804, 3226153669854871355,
-2093273755080502606, 1006087192578600616, -2272122301622271655,
2533238229511593671, -4450454445568858273, 2647789901083530435,
2761419461769776844, -1324397441074946198, -680758138988210958,
94468846694902125, -2394093124890745254, -2682139311758778198,
}
enc := tsm1.NewInt64Encoder()
for _, v := range values {
enc.Write(v)
}
b, err := enc.Bytes()
if err != nil {
t.Fatalf("expected error: %v", err)
}
dec := tsm1.NewInt64Decoder(b)
i := 0
for dec.Next() {
if i > len(values) {
t.Fatalf("read too many values: got %v, exp %v", i, len(values))
}
if values[i] != dec.Read() {
t.Fatalf("read value %d mismatch: got %v, exp %v", i, dec.Read(), values[i])
}
i += 1
}
if i != len(values) {
t.Fatalf("failed to read enough values: got %v, exp %v", i, len(values))
}
}