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bump_test.go
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bump_test.go
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// Copyright © SurrealDB Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package bump
import (
"bytes"
"io"
"io/ioutil"
"testing"
. "github.com/smartystreets/goconvey/convey"
)
var run = 100
var txt []byte // 906
var jpg []byte // 9245562
func init() {
txt, _ = ioutil.ReadFile("test.txt")
jpg, _ = ioutil.ReadFile("test.jpg")
}
func chunkReadBytes(r *Reader, num int) (bit []byte) {
sze := readerSize
beg := int(num / 100)
for i := 0; i < beg; i++ {
p, _ := r.PeekByte()
b, _ := r.ReadByte()
if p != b {
panic("Arrrgh")
}
bit = append(bit, b)
}
for i := beg; i < num; i += sze {
if i+sze > num {
b, _ := r.ReadBytes(num - i)
bit = append(bit, b...)
} else {
b, _ := r.ReadBytes(sze)
bit = append(bit, b...)
}
}
var e error
_, e = r.PeekByte()
So(e, ShouldNotBeNil)
_, e = r.ReadByte()
So(e, ShouldNotBeNil)
_, e = r.ReadBytes(5)
So(e, ShouldNotBeNil)
return
}
func chunkReadString(r *Reader, num int) (str string) {
bit := []byte("")
sze := readerSize
beg := int(num / 100)
for i := 0; i < beg; i++ {
p, _ := r.PeekByte()
b, _ := r.ReadByte()
if p != b {
panic("Arrrgh")
}
bit = append(bit, b)
}
str = string(bit)
for i := beg; i < num; i += sze {
if i+sze > num {
b, _ := r.ReadString(num - i)
str += b
} else {
b, _ := r.ReadString(sze)
str += b
}
}
var e error
_, e = r.PeekByte()
So(e, ShouldNotBeNil)
_, e = r.ReadByte()
So(e, ShouldNotBeNil)
_, e = r.ReadString(5)
So(e, ShouldNotBeNil)
return
}
func chunkWriteBytes(w *Writer, bit []byte) {
sze := writerSize
beg := int(len(bit) / 100)
for i := 0; i < beg; i++ {
w.WriteByte(bit[i])
}
for i := beg; i < len(bit); i += sze {
if i+sze > len(bit) {
w.WriteBytes(bit[i:])
} else {
w.WriteBytes(bit[i : i+sze])
}
}
}
func chunkWriteString(w *Writer, bit string) {
sze := writerSize
beg := int(len(bit) / 100)
for i := 0; i < beg; i++ {
w.WriteByte(bit[i])
}
for i := beg; i < len(bit); i += sze {
if i+sze > len(bit) {
w.WriteString(bit[i:])
} else {
w.WriteString(bit[i : i+sze])
}
}
}
func TestReader(t *testing.T) {
Convey("Reader should EOF if data length not readable", t, func() {
b := bytes.NewReader(jpg)
r := NewReader(b)
_, e := r.ReadBytes(len(jpg) * 2)
So(e, ShouldEqual, io.EOF)
})
Convey("Reader should EOF if data length not readable (as a string)", t, func() {
b := bytes.NewReader(jpg)
r := NewReader(b)
_, e := r.ReadString(len(jpg) * 2)
So(e, ShouldEqual, io.EOF)
})
Convey("Reader should read small data from an io.Reader", t, func() {
b := bytes.NewReader(txt)
r := NewReader(b)
o, _ := r.ReadBytes(len(txt))
So(len(o), ShouldEqual, len(txt))
So(o[0:5], ShouldResemble, txt[0:5])
So(o[len(o)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Reader should read small data from an io.Reader (as a string)", t, func() {
b := bytes.NewReader(txt)
r := NewReader(b)
o, _ := r.ReadString(len(txt))
So(len(o), ShouldEqual, len(txt))
So(o[0:5], ShouldResemble, string(txt[0:5]))
So(o[len(o)-5:], ShouldResemble, string(txt[len(txt)-5:]))
})
Convey("Reader should read small data from an io.Reader (reading in chunks)", t, func() {
b := bytes.NewReader(txt)
r := NewReader(b)
o := chunkReadBytes(r, len(txt))
So(len(o), ShouldEqual, len(txt))
So(o[0:5], ShouldResemble, txt[0:5])
So(o[len(o)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Reader should read small data from an io.Reader (as a string, reading in chunks)", t, func() {
b := bytes.NewReader(txt)
r := NewReader(b)
o := chunkReadString(r, len(txt))
So(len(o), ShouldEqual, len(txt))
So(o[0:5], ShouldResemble, string(txt[0:5]))
So(o[len(o)-5:], ShouldResemble, string(txt[len(txt)-5:]))
})
Convey("Reader should read large data from an io.Reader", t, func() {
b := bytes.NewReader(jpg)
r := NewReader(b)
o, _ := r.ReadBytes(len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, jpg[0:5])
So(o[len(o)-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Reader should read large data from an io.Reader (as a string)", t, func() {
b := bytes.NewReader(jpg)
r := NewReader(b)
o, _ := r.ReadString(len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, string(jpg[0:5]))
So(o[len(o)-5:], ShouldResemble, string(jpg[len(jpg)-5:]))
})
Convey("Reader should read large data from an io.Reader (reading in chunks)", t, func() {
b := bytes.NewReader(jpg)
r := NewReader(b)
o := chunkReadBytes(r, len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, jpg[0:5])
So(o[len(o)-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Reader should read large data from an io.Reader (as a string, reading in chunks)", t, func() {
b := bytes.NewReader(jpg)
r := NewReader(b)
o := chunkReadString(r, len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, string(jpg[0:5]))
So(o[len(o)-5:], ShouldResemble, string(jpg[len(jpg)-5:]))
})
// ----------------------------------------------------------------------------------------------------
Convey("Reader should EOF if data length not readable", t, func() {
r := NewReaderBytes(jpg)
_, e := r.ReadBytes(len(jpg) * 2)
So(e, ShouldEqual, io.EOF)
})
Convey("Reader should EOF if data length not readable (as a string)", t, func() {
r := NewReaderBytes(jpg)
_, e := r.ReadString(len(jpg) * 2)
So(e, ShouldEqual, io.EOF)
})
Convey("Reader should read small data from a byte slice", t, func() {
r := NewReaderBytes(txt)
o, _ := r.ReadBytes(len(txt))
So(len(o), ShouldEqual, len(txt))
So(o[0:5], ShouldResemble, txt[0:5])
So(o[len(o)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Reader should read small data from a byte slice (as a string)", t, func() {
r := NewReaderBytes(txt)
o, _ := r.ReadString(len(txt))
So(len(o), ShouldEqual, len(txt))
So(o[0:5], ShouldResemble, string(txt[0:5]))
So(o[len(o)-5:], ShouldResemble, string(txt[len(txt)-5:]))
})
Convey("Reader should read small data from a byte slice (reading in chunks)", t, func() {
r := NewReaderBytes(txt)
o := chunkReadBytes(r, len(txt))
So(len(o), ShouldEqual, len(txt))
So(o[0:5], ShouldResemble, txt[0:5])
So(o[len(o)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Reader should read small data from a byte slice (as a string, reading in chunks)", t, func() {
r := NewReaderBytes(txt)
o := chunkReadString(r, len(txt))
So(len(o), ShouldEqual, len(txt))
So(o[0:5], ShouldResemble, string(txt[0:5]))
So(o[len(o)-5:], ShouldResemble, string(txt[len(txt)-5:]))
})
Convey("Reader should read large data from a byte slice", t, func() {
r := NewReaderBytes(jpg)
o, _ := r.ReadBytes(len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, jpg[0:5])
So(o[len(o)-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Reader should read large data from a byte slice (as a string)", t, func() {
r := NewReaderBytes(jpg)
o, _ := r.ReadString(len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, string(jpg[0:5]))
So(o[len(o)-5:], ShouldResemble, string(jpg[len(jpg)-5:]))
})
Convey("Reader should read large data from a byte slice (reading in chunks)", t, func() {
r := NewReaderBytes(jpg)
o := chunkReadBytes(r, len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, jpg[0:5])
So(o[len(o)-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Reader should read large data from a byte slice (as a string, reading in chunks)", t, func() {
r := NewReaderBytes(jpg)
o := chunkReadString(r, len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, string(jpg[0:5]))
So(o[len(o)-5:], ShouldResemble, string(jpg[len(jpg)-5:]))
})
// ----------------------------------------------------------------------------------------------------
Convey("Reader should read large data from an io.Reader before resetting and being used for further reads", t, func() {
b := bytes.NewReader(jpg)
r := NewReader(b)
for i := 0; i < run; i++ {
o, _ := r.ReadBytes(len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, jpg[0:5])
So(o[len(o)-5:], ShouldResemble, jpg[len(jpg)-5:])
b = bytes.NewReader(jpg)
r.Reset(b)
}
})
Convey("Reader should read large data from a byte slice before resetting and being used for further reads", t, func() {
r := NewReaderBytes(jpg)
for i := 0; i < run; i++ {
o, _ := r.ReadBytes(len(jpg))
So(len(o), ShouldEqual, len(jpg))
So(o[0:5], ShouldResemble, jpg[0:5])
So(o[len(o)-5:], ShouldResemble, jpg[len(jpg)-5:])
r.ResetBytes(jpg)
}
})
}
func TestWriter(t *testing.T) {
Convey("Writer should write small data to an io.Writer", t, func() {
b := bytes.NewBuffer(nil)
w := NewWriter(b)
w.WriteBytes(txt)
w.Flush()
So(b.Len(), ShouldEqual, len(txt))
So(b.Bytes()[0:5], ShouldResemble, txt[0:5])
So(b.Bytes()[b.Len()-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write small data to an io.Writer (as a string)", t, func() {
b := bytes.NewBuffer(nil)
w := NewWriter(b)
w.WriteString(string(txt))
w.Flush()
So(b.Len(), ShouldEqual, len(txt))
So(b.Bytes()[0:5], ShouldResemble, txt[0:5])
So(b.Bytes()[b.Len()-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write small data to an io.Writer (writing in chunks)", t, func() {
b := bytes.NewBuffer(nil)
w := NewWriter(b)
chunkWriteBytes(w, txt)
w.Flush()
So(b.Len(), ShouldEqual, len(txt))
So(b.Bytes()[0:5], ShouldResemble, txt[0:5])
So(b.Bytes()[b.Len()-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write small data to an io.Writer (as a string, writing in chunks)", t, func() {
b := bytes.NewBuffer(nil)
w := NewWriter(b)
chunkWriteString(w, string(txt))
w.Flush()
So(b.Len(), ShouldEqual, len(txt))
So(b.Bytes()[0:5], ShouldResemble, txt[0:5])
So(b.Bytes()[b.Len()-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write large data to an io.Writer", t, func() {
b := bytes.NewBuffer(nil)
w := NewWriter(b)
w.WriteBytes(jpg)
w.Flush()
So(b.Len(), ShouldEqual, len(jpg))
So(b.Bytes()[0:5], ShouldResemble, jpg[0:5])
So(b.Bytes()[b.Len()-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Writer should write large data to an io.Writer (as a string)", t, func() {
b := bytes.NewBuffer(nil)
w := NewWriter(b)
w.WriteString(string(jpg))
w.Flush()
So(b.Len(), ShouldEqual, len(jpg))
So(b.Bytes()[0:5], ShouldResemble, jpg[0:5])
So(b.Bytes()[b.Len()-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Writer should write large data to an io.Writer (writing in chunks)", t, func() {
b := bytes.NewBuffer(nil)
w := NewWriter(b)
chunkWriteBytes(w, jpg)
w.Flush()
So(b.Len(), ShouldEqual, len(jpg))
So(b.Bytes()[0:5], ShouldResemble, jpg[0:5])
So(b.Bytes()[b.Len()-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Writer should write large data to an io.Writer (as a string, writing in chunks)", t, func() {
b := bytes.NewBuffer(nil)
w := NewWriter(b)
chunkWriteString(w, string(jpg))
w.Flush()
So(b.Len(), ShouldEqual, len(jpg))
So(b.Bytes()[0:5], ShouldResemble, jpg[0:5])
So(b.Bytes()[b.Len()-5:], ShouldResemble, jpg[len(jpg)-5:])
})
// ----------------------------------------------------------------------------------------------------
Convey("Writer should write small data to a nil byte slice and allocate once", t, func() {
var b []byte
w := NewWriterBytes(&b)
w.WriteBytes(txt)
w.Flush()
So(len(b), ShouldEqual, len(txt))
So(b[0:5], ShouldResemble, txt[0:5])
So(b[len(b)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write small data to a nil byte slice and allocate once (as a string)", t, func() {
var b []byte
w := NewWriterBytes(&b)
w.WriteString(string(txt))
w.Flush()
So(len(b), ShouldEqual, len(txt))
So(b[0:5], ShouldResemble, txt[0:5])
So(b[len(b)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write small data to a nil byte slice and allocate once (writing in chunks)", t, func() {
var b []byte
w := NewWriterBytes(&b)
chunkWriteBytes(w, txt)
w.Flush()
So(len(b), ShouldEqual, len(txt))
So(b[0:5], ShouldResemble, txt[0:5])
So(b[len(b)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write small data to a nil byte slice and allocate once (as a string, writing in chunks)", t, func() {
var b []byte
w := NewWriterBytes(&b)
chunkWriteString(w, string(txt))
w.Flush()
So(len(b), ShouldEqual, len(txt))
So(b[0:5], ShouldResemble, txt[0:5])
So(b[len(b)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write large data to a nil byte slice and allocate multiple", t, func() {
var b []byte
w := NewWriterBytes(&b)
w.WriteBytes(jpg)
w.Flush()
So(len(b), ShouldEqual, len(jpg))
So(b[0:5], ShouldResemble, jpg[0:5])
So(b[len(b)-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Writer should write large data to a nil byte slice and allocate multiple (writing in chunks)", t, func() {
var b []byte
w := NewWriterBytes(&b)
w.WriteBytes(jpg)
w.Flush()
So(len(b), ShouldEqual, len(jpg))
So(b[0:5], ShouldResemble, jpg[0:5])
So(b[len(b)-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Writer should write small data to an empty byte slice and grow to capacity", t, func() {
b := make([]byte, 0, 1024)
w := NewWriterBytes(&b)
w.WriteBytes(txt)
w.Flush()
So(len(b), ShouldEqual, len(txt))
So(b[0:5], ShouldResemble, txt[0:5])
So(b[len(b)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write small data to an empty byte slice and grow to capacity (writing in chunks)", t, func() {
b := make([]byte, 0, 1024)
w := NewWriterBytes(&b)
w.WriteBytes(txt)
w.Flush()
So(len(b), ShouldEqual, len(txt))
So(b[0:5], ShouldResemble, txt[0:5])
So(b[len(b)-5:], ShouldResemble, txt[len(txt)-5:])
})
Convey("Writer should write large data to an empty byte slice and grow to capacity and allocate ", t, func() {
b := make([]byte, 0, 1024)
w := NewWriterBytes(&b)
w.WriteBytes(jpg)
w.Flush()
So(len(b), ShouldEqual, len(jpg))
So(b[0:5], ShouldResemble, jpg[0:5])
So(b[len(b)-5:], ShouldResemble, jpg[len(jpg)-5:])
})
Convey("Writer should write large data to an empty byte slice and grow to capacity and allocate (writing in chunks)", t, func() {
b := make([]byte, 0, 1024)
w := NewWriterBytes(&b)
w.WriteBytes(jpg)
w.Flush()
So(len(b), ShouldEqual, len(jpg))
So(b[0:5], ShouldResemble, jpg[0:5])
So(b[len(b)-5:], ShouldResemble, jpg[len(jpg)-5:])
})
// ----------------------------------------------------------------------------------------------------
Convey("Writer should write large data to an io.Writer before resetting and being used for further writes", t, func() {
b := bytes.NewBuffer(nil)
w := NewWriter(b)
for i := 0; i < run; i++ {
w.WriteBytes(jpg)
w.Flush()
So(b.Len(), ShouldEqual, len(jpg))
So(b.Bytes()[0:5], ShouldResemble, jpg[0:5])
So(b.Bytes()[b.Len()-5:], ShouldResemble, jpg[len(jpg)-5:])
b = bytes.NewBuffer(nil)
w.Reset(b)
}
})
Convey("Writer should write large data to a byte slice before resetting and being used for further writes", t, func() {
b := []byte{}
w := NewWriterBytes(&b)
for i := 0; i < run; i++ {
w.WriteBytes(jpg)
w.Flush()
So(len(b), ShouldEqual, len(jpg))
So(b[0:5], ShouldResemble, jpg[0:5])
So(b[len(b)-5:], ShouldResemble, jpg[len(jpg)-5:])
b = []byte{}
w.ResetBytes(&b)
}
})
}