Overview
| Comment: | Renamed BlockReader to SizedReader, modified ioutil tests for 100% code coverage |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
11d1c50cd5867c495edb33f76a2fd7c8 |
| User & Date: | spaskalev on 2014-12-23 20:53:40 |
| Other Links: | manifest | tags |
Context
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2014-12-24
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| 08:24 | Added an explicit copyright notice in the code. check-in: ffd1ab7b0c user: spaskalev tags: trunk | |
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2014-12-23
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| 20:53 | Renamed BlockReader to SizedReader, modified ioutil tests for 100% code coverage check-in: 11d1c50cd5 user: spaskalev tags: trunk | |
| 19:18 | Fixing ioutil tests to compile :) check-in: b0ff11dfcd user: spaskalev tags: trunk | |
Changes
Modified src/0dev.org/ioutil/ioutil.go from [f63ac1dff8] to [98f8caa018].
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type ReaderFunc func([]byte) (int, error)
// Delegates the call to the WriterFunc while implementing io.Reader
func (r ReaderFunc) Read(b []byte) (int, error) {
return r(b)
}
// Returns a reader that will delegate calls to Read(...) while ensuring
// that the output buffer will never be smaller than the required size
// and will be downsized to a multiple of the required size if larger
func BlockReader(reader io.Reader, size int) io.Reader {
var buffer []byte = make([]byte, 0, size)
return ReaderFunc(func(output []byte) (int, error) {
var (
readCount int
err error
)
|
| | | | |
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type ReaderFunc func([]byte) (int, error)
// Delegates the call to the WriterFunc while implementing io.Reader
func (r ReaderFunc) Read(b []byte) (int, error) {
return r(b)
}
// Returns a reader that delegates calls to Read(...) while ensuring
// that the output buffer is never smaller than the required size
// and is downsized to a multiple of the required size if larger
func SizedReader(reader io.Reader, size int) io.Reader {
var buffer []byte = make([]byte, 0, size)
return ReaderFunc(func(output []byte) (int, error) {
var (
readCount int
err error
)
|
Modified src/0dev.org/ioutil/ioutil_test.go from [a857b5c640] to [f071d3739a].
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func TestBlockReader(t *testing.T) {
var (
input []byte = []byte{0, 1, 2, 3, 4, 5, 6, 7}
output []byte = make([]byte, 16)
reader *bytes.Reader = bytes.NewReader(input)
min io.Reader = BlockReader(reader, 4)
)
// Expecting a read count of 2
count, err := min.Read(output[:2])
if count != 2 {
t.Error("Invalid read count from MinReader", count)
}
................................................................................
t.Error("Invalid read count from MinReader", count)
}
if err != nil {
t.Error("Unexpected error from MinReader", err)
}
// Expecting a read count of 0 with an EOF as the buffer should be empty
count, err = min.Read(output[:4])
if count != 0 {
t.Error("Invalid read count from MinReader", count)
}
if err != io.EOF {
t.Error("Unexpected error from MinReader", err)
}
}
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func TestBlockReader(t *testing.T) {
var (
input []byte = []byte{0, 1, 2, 3, 4, 5, 6, 7}
output []byte = make([]byte, 16)
reader *bytes.Reader = bytes.NewReader(input)
min io.Reader = SizedReader(reader, 4)
)
// Expecting a read count of 2
count, err := min.Read(output[:2])
if count != 2 {
t.Error("Invalid read count from MinReader", count)
}
................................................................................
t.Error("Invalid read count from MinReader", count)
}
if err != nil {
t.Error("Unexpected error from MinReader", err)
}
// Expecting a read count of 0 with an EOF as the buffer should be empty
count, err = min.Read(output[:1])
if count != 0 {
t.Error("Invalid read count from MinReader", count)
}
if err != io.EOF {
t.Error("Unexpected error from MinReader", err)
}
}
|
Modified src/0dev.org/predictor/predictor.go from [625ed7e8bc] to [1bc0c5d728].
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// Returns an io.Reader implementation that wraps the provided io.Reader
// and decompresses data according to the predictor algorithm
func Decompressor(reader io.Reader) io.Reader {
var ctx context
ctx.input = make([]byte, 0, 8)
return iou.BlockReader(iou.ReaderFunc(func(output []byte) (int, error) {
var (
err error
flags, predicted byte
rc, total, copied int
)
// Read the next prediction header
|
| |
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// Returns an io.Reader implementation that wraps the provided io.Reader
// and decompresses data according to the predictor algorithm
func Decompressor(reader io.Reader) io.Reader {
var ctx context
ctx.input = make([]byte, 0, 8)
return iou.SizedReader(iou.ReaderFunc(func(output []byte) (int, error) {
var (
err error
flags, predicted byte
rc, total, copied int
)
// Read the next prediction header
|