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-rw-r--r--go/src/regtest.go274
1 files changed, 0 insertions, 274 deletions
diff --git a/go/src/regtest.go b/go/src/regtest.go
deleted file mode 100644
index 9d91f69..0000000
--- a/go/src/regtest.go
+++ /dev/null
@@ -1,274 +0,0 @@
-package main
-
-import (
- "fmt"
- "io"
- "path"
- "os"
- "sort"
- "time"
-
- "xdelta"
-)
-
-const (
- xdataset = "/volume/home/jmacd/src/testdata"
- xcompare = "/volume/home/jmacd/src/xdelta-devel/xdelta3/build/x86_64-pc-linux-gnu-m64/xoff64/xdelta3"
- xdelta3 = "/volume/home/jmacd/src/xdelta-64bithash/xdelta3/build/x86_64-pc-linux-gnu-m64/usize64/xoff64/xdelta3"
- seed = 1422253499919909358
-)
-
-type Config struct {
- srcbuf_size int64
- window_size int64
- blocksize int
-}
-
-func NewC() Config {
- // TODO make these (and above) flags
- return Config{1<<26, 1<<22, 1<<16}
-}
-
-func (c Config) smokeTest(t *xdelta.TestGroup, p xdelta.Program) {
- target := "Hello world!"
- source := "Hello world, nice to meet you!"
-
- enc, err := t.Exec("encode", p, true, []string{"-e"})
- if err != nil {
- t.Panic(err)
- }
- dec, err := t.Exec("decode", p, true, []string{"-d"})
- if err != nil {
- t.Panic(err)
- }
-
- encodeout := t.Drain(enc.Stdout, "encode.stdout")
- decodeout := t.Drain(dec.Stdout, "decode.stdout")
-
- t.Empty(enc.Stderr, "encode")
- t.Empty(dec.Stderr, "decode")
-
- t.TestWrite("encode.stdin", enc.Stdin, []byte(target))
- t.TestWrite("encode.srcin", enc.Srcin, []byte(source))
-
- t.TestWrite("decode.stdin", dec.Stdin, <-encodeout)
- t.TestWrite("decode.srcin", dec.Srcin, []byte(source))
-
- if do := string(<-decodeout); do != target {
- t.Panic(fmt.Errorf("It's not working! %s\n!=\n%s\n", do, target))
- }
- t.Wait(enc, dec)
-}
-
-type PairTest struct {
- // Input
- Config
- program xdelta.Program
- source, target string
-
- // Output
- TestOutput
-}
-
-type TestOutput struct {
- encoded int64
- encDuration time.Duration
- decDuration time.Duration
- encSysDuration time.Duration
- decSysDuration time.Duration
-}
-
-func (to *TestOutput) Add(a TestOutput) {
- to.encoded += a.encoded
- to.encDuration += a.encDuration
- to.decDuration += a.decDuration
- to.encSysDuration += a.encSysDuration
- to.decSysDuration += a.decSysDuration
-}
-
-func (to *TestOutput) String() string {
- return fmt.Sprintf("SIZE: %v\tT: %v\tTSYS: %v\tDT: %v\tDTSYS: %v",
- to.encoded, to.encDuration, to.encSysDuration, to.decDuration, to.encSysDuration)
-}
-
-// P is the test program, Q is the reference version.
-func (cfg Config) datasetTest(t *xdelta.TestGroup, p, q xdelta.Program) {
- dir, err := os.Open(xdataset)
- if err != nil {
- t.Panic(err)
- }
- dents, err := dir.Readdir(-1)
- if err != nil {
- t.Panic(err)
- }
- paths := make([]string, len(dents))
- var total int64
- for i, d := range dents {
- if !d.Mode().IsRegular() {
- continue
- }
- paths[i] = fmt.Sprint(xdataset, "/", d.Name())
- total += d.Size()
- }
- meansize := total / int64(len(dents))
- largest := uint(20)
- for ; largest <= 31 && 1<<largest < meansize; largest++ {}
-
- sort.Strings(paths)
-
- testSum := map[uint]*TestOutput{}
- compSum := map[uint]*TestOutput{}
-
- for _, in1 := range paths {
- for _, in2 := range paths {
- if in1 == in2 { continue }
-
- // 1/4, 1/2, and 1 of the power-of-2 rounded-up mean size
- for b := largest - 2; b <= largest; b++ {
- if _, has := testSum[b]; !has {
- testSum[b] = &TestOutput{}
- compSum[b] = &TestOutput{}
- }
- c1 := cfg
- c1.srcbuf_size = 1<<b
- ptest := &PairTest{c1, p, in1, in2, TestOutput{-1, 0, 0, 0, 0}}
- ptest.datasetPairTest(t, 1<<b);
- qtest := &PairTest{c1, q, in1, in2, TestOutput{-1, 0, 0, 0, 0}}
- qtest.datasetPairTest(t, 1<<b)
-
- testSum[b].Add(ptest.TestOutput)
- compSum[b].Add(qtest.TestOutput)
-
- fmt.Printf("%s, %s: %.2f%% %+d/%d\n\tE:%.2f%%/%s(%.2f%%/%s) D:%.2f%%/%s(%.2f%%/%s) [B=%d]\n",
- path.Base(in1), path.Base(in2),
- float64(ptest.encoded - qtest.encoded) * 100.0 / float64(qtest.encoded),
- ptest.encoded - qtest.encoded,
- qtest.encoded,
- (ptest.encDuration - qtest.encDuration).Seconds() * 100.0 / qtest.encDuration.Seconds(),
- qtest.encDuration,
- (ptest.decDuration - qtest.decDuration).Seconds() * 100.0 / qtest.decDuration.Seconds(),
- qtest.encDuration,
- (ptest.encSysDuration - qtest.encSysDuration).Seconds() * 100.0 / qtest.encSysDuration.Seconds(),
- qtest.encSysDuration,
- (ptest.decSysDuration - qtest.decSysDuration).Seconds() * 100.0 / qtest.decSysDuration.Seconds(),
- qtest.decSysDuration,
- 1<<b)
- }
- }
- }
- var keys []uint
- for k, _ := range testSum {
- keys = append(keys, k)
- }
- for _, k := range keys {
- fmt.Printf("B=%v\nTEST: %v\nCOMP: %v\n", 1<<k, testSum[k], compSum[k])
- }
-}
-
-func (pt *PairTest) datasetPairTest(t *xdelta.TestGroup, meanSize int64) {
- cfg := pt.Config
- eargs := []string{"-e", fmt.Sprint("-B", cfg.srcbuf_size), // "-q",
- fmt.Sprint("-W", cfg.window_size), "-s", pt.source,
- "-I0", "-S", "none", pt.target}
- enc, err := t.Exec("encode", pt.program, false, eargs)
- if err != nil {
- t.Panic(err)
- }
-
- dargs := []string{"-dc", fmt.Sprint("-B", cfg.srcbuf_size), //"-q",
- fmt.Sprint("-W", cfg.window_size), "-s", pt.source,
- "-S", "none"}
-
- dec, err := t.Exec("decode", pt.program, false, dargs)
- if err != nil {
- t.Panic(err)
- }
- tgt_check, err := os.Open(pt.target)
- if err != nil {
- t.Panic(err)
- }
- tgt_info, err := tgt_check.Stat()
- if err != nil {
- t.Panic(err)
- }
- t.Empty(enc.Stderr, "encode")
- t.Empty(dec.Stderr, "decode")
- t.CopyStreams(enc.Stdout, dec.Stdin, &pt.encoded)
- t.CompareStreams(dec.Stdout, tgt_check, tgt_info.Size())
-
- t.Wait(enc, dec)
-
- pt.decDuration = dec.Cmd.ProcessState.UserTime()
- pt.encDuration = enc.Cmd.ProcessState.UserTime()
- pt.decSysDuration = dec.Cmd.ProcessState.SystemTime()
- pt.encSysDuration = enc.Cmd.ProcessState.SystemTime()
-}
-
-func (cfg Config) offsetTest(t *xdelta.TestGroup, p xdelta.Program, offset, length int64) {
- eargs := []string{"-e", "-0", fmt.Sprint("-B", cfg.srcbuf_size), "-q",
- fmt.Sprint("-W", cfg.window_size)}
- enc, err := t.Exec("encode", p, true, eargs)
- if err != nil {
- t.Panic(err)
- }
-
- dargs := []string{"-d", fmt.Sprint("-B", cfg.srcbuf_size), "-q",
- fmt.Sprint("-W", cfg.window_size)}
- dec, err := t.Exec("decode", p, true, dargs)
- if err != nil {
- t.Panic(err)
- }
-
- // The pipe used to read the decoder output and compare
- // against the target.
- read, write := io.Pipe()
-
- t.Empty(enc.Stderr, "encode")
- t.Empty(dec.Stderr, "decode")
-
- var encoded_size int64
- t.CopyStreams(enc.Stdout, dec.Stdin, &encoded_size)
- t.CompareStreams(dec.Stdout, read, length)
-
- // The decoder output ("read", above) is compared with the
- // test-provided output ("write", below). The following
- // generates two identical inputs.
- t.WriteRstreams("encode", seed, offset, length, enc.Srcin, enc.Stdin)
- t.WriteRstreams("decode", seed, offset, length, dec.Srcin, write)
- t.Wait(enc, dec)
-
- expect := cfg.srcbuf_size - offset
- if float64(encoded_size) < (0.95 * float64(expect)) ||
- float64(encoded_size) > (1.05 * float64(expect)) {
- t.Fail("encoded size should be ~=", expect, ", actual ", encoded_size)
- }
-}
-
-func main() {
- r, err := xdelta.NewRunner()
- if err != nil {
- panic(err)
- }
- defer r.Cleanup()
-
- cfg := NewC()
-
- prog := xdelta.Program{xdelta3}
-
- r.RunTest("smoketest", func(t *xdelta.TestGroup) { cfg.smokeTest(t, prog) })
-
- for i := uint(29); i <= 33; i += 1 {
- // The arguments to offsetTest are offset, source
- // window size, and file size. The source window size
- // is (2 << i) and (in the 3.0x release branch) is
- // limited to 2^31, so the the greatest value of i is
- // 30.
- cfg.srcbuf_size = 2 << i
- r.RunTest(fmt.Sprint("offset", i), func(t *xdelta.TestGroup) {
- cfg.offsetTest(t, prog, 1 << i, 3 << i) })
- }
-
- comp := xdelta.Program{xcompare}
-
- r.RunTest("dataset", func(t *xdelta.TestGroup) { cfg.datasetTest(t, prog, comp) })
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 03:53:05 +0000