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|
package protocol
import (
"bytes"
"io"
"io/ioutil"
"testing"
)
func TestPageBufferWriteReadSeek(t *testing.T) {
buffer := newPageBuffer()
defer buffer.unref()
io.WriteString(buffer, "Hello World!")
if n := buffer.Size(); n != 12 {
t.Fatal("invalid size:", n)
}
for i := 0; i < 3; i++ {
if n := buffer.Len(); n != 12 {
t.Fatal("invalid length before read:", n)
}
b, err := ioutil.ReadAll(buffer)
if err != nil {
t.Fatal(err)
}
if n := buffer.Len(); n != 0 {
t.Fatal("invalid length after read:", n)
}
if string(b) != "Hello World!" {
t.Fatalf("invalid content after read #%d: %q", i, b)
}
offset, err := buffer.Seek(0, io.SeekStart)
if err != nil {
t.Fatal(err)
}
if offset != 0 {
t.Fatalf("invalid offset after seek #%d: %d", i, offset)
}
}
}
func TestPageRefWriteReadSeek(t *testing.T) {
buffer := newPageBuffer()
defer buffer.unref()
io.WriteString(buffer, "Hello World!")
ref := buffer.ref(1, 11)
defer ref.unref()
if n := ref.Size(); n != 10 {
t.Fatal("invalid size:", n)
}
for i := 0; i < 3; i++ {
if n := ref.Len(); n != 10 {
t.Fatal("invalid length before read:", n)
}
b, err := ioutil.ReadAll(ref)
if err != nil {
t.Fatal(err)
}
if n := ref.Len(); n != 0 {
t.Fatal("invalid length after read:", n)
}
if string(b) != "ello World" {
t.Fatalf("invalid content after read #%d: %q", i, b)
}
offset, err := ref.Seek(0, io.SeekStart)
if err != nil {
t.Fatal(err)
}
if offset != 0 {
t.Fatalf("invalid offset after seek #%d: %d", i, offset)
}
}
}
func TestPageRefReadByte(t *testing.T) {
buffer := newPageBuffer()
defer buffer.unref()
content := bytes.Repeat([]byte("1234567890"), 10e3)
buffer.Write(content)
ref := buffer.ref(0, buffer.Size())
defer ref.unref()
for i, c := range content {
b, err := ref.ReadByte()
if err != nil {
t.Fatal(err)
}
if b != c {
t.Fatalf("byte at offset %d mismatch, expected '%c' but got '%c'", i, c, b)
}
}
}
|
