zstd/tests/playTests.sh

#!/bin/sh

set -e

die() {
    println "$@" 1>&2
    exit 1
}

roundTripTest() {
    if [ -n "$3" ]; then
        cLevel="$3"
        proba="$2"
    else
        cLevel="$2"
        proba=""
    fi
    if [ -n "$4" ]; then
        dLevel="$4"
    else
        dLevel="$cLevel"
    fi

    rm -f tmp1 tmp2
    println "roundTripTest: ./datagen $1 $proba | $ZSTD -v$cLevel | $ZSTD -d$dLevel"
    ./datagen $1 $proba | $MD5SUM > tmp1
    ./datagen $1 $proba | $ZSTD --ultra -v$cLevel | $ZSTD -d$dLevel  | $MD5SUM > tmp2
    $DIFF -q tmp1 tmp2
}

fileRoundTripTest() {
    if [ -n "$3" ]; then
        local_c="$3"
        local_p="$2"
    else
        local_c="$2"
        local_p=""
    fi
    if [ -n "$4" ]; then
        local_d="$4"
    else
        local_d="$local_c"
    fi

    rm -f tmp.zstd tmp.md5.1 tmp.md5.2
    println "fileRoundTripTest: ./datagen $1 $local_p > tmp && $ZSTD -v$local_c -c tmp | $ZSTD -d$local_d"
    ./datagen $1 $local_p > tmp
    < tmp $MD5SUM > tmp.md5.1
    $ZSTD --ultra -v$local_c -c tmp | $ZSTD -d$local_d | $MD5SUM > tmp.md5.2
    $DIFF -q tmp.md5.1 tmp.md5.2
}

truncateLastByte() {
    dd bs=1 count=$(($(wc -c < "$1") - 1)) if="$1"
}

println() {
    printf '%b\n' "${*}"
}


SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)
PRGDIR="$SCRIPT_DIR/../programs"
TESTDIR="$SCRIPT_DIR/../tests"
UNAME=$(uname)

isTerminal=false
if [ -t 0 ] && [ -t 1 ]
then
    isTerminal=true
fi

isWindows=false
INTOVOID="/dev/null"
case "$UNAME" in
  GNU) DEVDEVICE="/dev/random" ;;
  *) DEVDEVICE="/dev/zero" ;;
esac
case "$OS" in
  Windows*)
    isWindows=true
    INTOVOID="NUL"
    DEVDEVICE="NUL"
    ;;
esac

case "$UNAME" in
  Darwin) MD5SUM="md5 -r" ;;
  FreeBSD) MD5SUM="gmd5sum" ;;
  OpenBSD) MD5SUM="md5" ;;
  *) MD5SUM="md5sum" ;;
esac

DIFF="diff"
case "$UNAME" in
  SunOS) DIFF="gdiff" ;;
esac

println "\nStarting playTests.sh isWindows=$isWindows ZSTD='$ZSTD'"

[ -n "$ZSTD" ] || die "ZSTD variable must be defined!"

if echo hello | $ZSTD -v -T2 2>&1 > $INTOVOID | grep -q 'multi-threading is disabled'
then
    hasMT=""
else
    hasMT="true"
fi


println "\n===>  simple tests "

./datagen > tmp
println "test : basic compression "
$ZSTD -f tmp                      # trivial compression case, creates tmp.zst
println "test : basic decompression"
$ZSTD -df tmp.zst                 # trivial decompression case (overwrites tmp)
println "test : too large compression level => auto-fix"
$ZSTD -99 -f tmp  # too large compression level, automatic sized down
$ZSTD -5000000000 -f tmp && die "too large numeric value : must fail"
println "test : --fast aka negative compression levels"
$ZSTD --fast -f tmp  # == -1
$ZSTD --fast=3 -f tmp  # == -3
$ZSTD --fast=200000 -f tmp  # too low compression level, automatic fixed
$ZSTD --fast=5000000000 -f tmp && die "too large numeric value : must fail"
$ZSTD -c --fast=0 tmp > $INTOVOID && die "--fast must not accept value 0"
println "test : too large numeric argument"
$ZSTD --fast=9999999999 -f tmp  && die "should have refused numeric value"
println "test : set compression level with environment variable ZSTD_CLEVEL"
ZSTD_CLEVEL=12  $ZSTD -f tmp # positive compression level
ZSTD_CLEVEL=-12 $ZSTD -f tmp # negative compression level
ZSTD_CLEVEL=+12 $ZSTD -f tmp # valid: verbose '+' sign
ZSTD_CLEVEL=''  $ZSTD -f tmp # empty env var, warn and revert to default setting
ZSTD_CLEVEL=-   $ZSTD -f tmp # malformed env var, warn and revert to default setting
ZSTD_CLEVEL=a   $ZSTD -f tmp # malformed env var, warn and revert to default setting
ZSTD_CLEVEL=+a  $ZSTD -f tmp # malformed env var, warn and revert to default setting
ZSTD_CLEVEL=3a7 $ZSTD -f tmp # malformed env var, warn and revert to default setting
ZSTD_CLEVEL=50000000000  $ZSTD -f tmp # numeric value too large, warn and revert to default setting
println "test : override ZSTD_CLEVEL with command line option"
ZSTD_CLEVEL=12  $ZSTD --fast=3 -f tmp # overridden by command line option
println "test : compress to stdout"
$ZSTD tmp -c > tmpCompressed
$ZSTD tmp --stdout > tmpCompressed       # long command format
println "test : compress to named file"
rm tmpCompressed
$ZSTD tmp -o tmpCompressed
test -f tmpCompressed   # file must be created
println "test : -o must be followed by filename (must fail)"
$ZSTD tmp -of tmpCompressed && die "-o must be followed by filename "
println "test : force write, correct order"
$ZSTD tmp -fo tmpCompressed
println "test : forgotten argument"
cp tmp tmp2
$ZSTD tmp2 -fo && die "-o must be followed by filename "
println "test : implied stdout when input is stdin"
println bob | $ZSTD | $ZSTD -d
if [ "$isTerminal" = true ]; then
println "test : compressed data to terminal"
println bob | $ZSTD && die "should have refused : compressed data to terminal"
println "test : compressed data from terminal (a hang here is a test fail, zstd is wrongly waiting on data from terminal)"
$ZSTD -d > $INTOVOID && die "should have refused : compressed data from terminal"
fi
println "test : null-length file roundtrip"
println -n '' | $ZSTD - --stdout | $ZSTD -d --stdout
println "test : ensure small file doesn't add 3-bytes null block"
./datagen -g1 > tmp1
$ZSTD tmp1 -c | wc -c | grep "14"
$ZSTD < tmp1  | wc -c | grep "14"
println "test : decompress file with wrong suffix (must fail)"
$ZSTD -d tmpCompressed && die "wrong suffix error not detected!"
$ZSTD -df tmp && die "should have refused : wrong extension"
println "test : decompress into stdout"
$ZSTD -d tmpCompressed -c > tmpResult    # decompression using stdout
$ZSTD --decompress tmpCompressed -c > tmpResult
$ZSTD --decompress tmpCompressed --stdout > tmpResult
println "test : decompress from stdin into stdout"
$ZSTD -dc   < tmp.zst > $INTOVOID   # combine decompression, stdin & stdout
$ZSTD -dc - < tmp.zst > $INTOVOID
$ZSTD -d    < tmp.zst > $INTOVOID   # implicit stdout when stdin is used
$ZSTD -d  - < tmp.zst > $INTOVOID
println "test : impose memory limitation (must fail)"
$ZSTD -d -f tmp.zst -M2K -c > $INTOVOID && die "decompression needs more memory than allowed"
$ZSTD -d -f tmp.zst --memlimit=2K -c > $INTOVOID && die "decompression needs more memory than allowed"  # long command
$ZSTD -d -f tmp.zst --memory=2K -c > $INTOVOID && die "decompression needs more memory than allowed"  # long command
$ZSTD -d -f tmp.zst --memlimit-decompress=2K -c > $INTOVOID && die "decompression needs more memory than allowed"  # long command
println "test : overwrite protection"
$ZSTD -q tmp && die "overwrite check failed!"
println "test : force overwrite"
$ZSTD -q -f tmp
$ZSTD -q --force tmp
println "test : overwrite readonly file"
rm -f tmpro tmpro.zst
println foo > tmpro.zst
println foo > tmpro
chmod 400 tmpro.zst
$ZSTD -q tmpro && die "should have refused to overwrite read-only file"
$ZSTD -q -f tmpro
println "test: --no-progress flag"
$ZSTD tmpro -c --no-progress | $ZSTD -d -f -o "$INTOVOID" --no-progress
$ZSTD tmpro -cv --no-progress | $ZSTD -dv -f -o "$INTOVOID" --no-progress
rm -f tmpro tmpro.zst
println "test: overwrite input file (must fail)"
$ZSTD tmp -fo tmp && die "zstd compression overwrote the input file"
$ZSTD tmp.zst -dfo tmp.zst && die "zstd decompression overwrote the input file"
println "test: detect that input file does not exist"
$ZSTD nothere && die "zstd hasn't detected that input file does not exist"
println "test: --[no-]compress-literals"
$ZSTD tmp -c --no-compress-literals -1       | $ZSTD -t
$ZSTD tmp -c --no-compress-literals --fast=1 | $ZSTD -t
$ZSTD tmp -c --no-compress-literals -19      | $ZSTD -t
$ZSTD tmp -c --compress-literals    -1       | $ZSTD -t
$ZSTD tmp -c --compress-literals    --fast=1 | $ZSTD -t
$ZSTD tmp -c --compress-literals    -19      | $ZSTD -t
$ZSTD -b --fast=1 -i1e1 tmp --compress-literals
$ZSTD -b --fast=1 -i1e1 tmp --no-compress-literals

println "test : file removal"
$ZSTD -f --rm tmp
test ! -f tmp  # tmp should no longer be present
$ZSTD -f -d --rm tmp.zst
test ! -f tmp.zst   # tmp.zst should no longer be present
println "test : should quietly not remove non-regular file"
println hello > tmp
$ZSTD tmp -f -o "$DEVDEVICE" 2>tmplog > "$INTOVOID"
grep -v "Refusing to remove non-regular file" tmplog
rm -f tmplog
$ZSTD tmp -f -o "$INTOVOID" 2>&1 | grep -v "Refusing to remove non-regular file"
println "test : --rm on stdin"
println a | $ZSTD --rm > $INTOVOID   # --rm should remain silent
rm tmp
$ZSTD -f tmp && die "tmp not present : should have failed"
test ! -f tmp.zst  # tmp.zst should not be created
println "test : -d -f do not delete destination when source is not present"
touch tmp    # create destination file
$ZSTD -d -f tmp.zst && die "attempt to decompress a non existing file"
test -f tmp  # destination file should still be present
println "test : -f do not delete destination when source is not present"
rm tmp         # erase source file
touch tmp.zst  # create destination file
$ZSTD -f tmp && die "attempt to compress a non existing file"
test -f tmp.zst  # destination file should still be present
rm tmp*


println "test : compress multiple files"
println hello > tmp1
println world > tmp2
$ZSTD tmp1 tmp2 -o "$INTOVOID" -f
$ZSTD tmp1 tmp2 -c | $ZSTD -t
$ZSTD tmp1 tmp2 -o tmp.zst
test ! -f tmp1.zst
test ! -f tmp2.zst
$ZSTD tmp1 tmp2
$ZSTD -t tmp1.zst tmp2.zst
$ZSTD -dc tmp1.zst tmp2.zst
$ZSTD tmp1.zst tmp2.zst -o "$INTOVOID" -f
$ZSTD -d tmp1.zst tmp2.zst -o tmp
touch tmpexists
$ZSTD tmp1 tmp2 -f -o tmpexists
$ZSTD tmp1 tmp2 -o tmpexists && die "should have refused to overwrite"
# Bug: PR #972
if [ "$?" -eq 139 ]; then
  die "should not have segfaulted"
fi
rm tmp*


println "\n===>  Advanced compression parameters "
println "Hello world!" | $ZSTD --zstd=windowLog=21,      - -o tmp.zst && die "wrong parameters not detected!"
println "Hello world!" | $ZSTD --zstd=windowLo=21        - -o tmp.zst && die "wrong parameters not detected!"
println "Hello world!" | $ZSTD --zstd=windowLog=21,slog  - -o tmp.zst && die "wrong parameters not detected!"
println "Hello world!" | $ZSTD --zstd=strategy=10        - -o tmp.zst && die "parameter out of bound not detected!"  # > btultra2 : does not exist
test ! -f tmp.zst  # tmp.zst should not be created
roundTripTest -g512K
roundTripTest -g512K " --zstd=mml=3,tlen=48,strat=6"
roundTripTest -g512K " --zstd=strat=6,wlog=23,clog=23,hlog=22,slog=6"
roundTripTest -g512K " --zstd=windowLog=23,chainLog=23,hashLog=22,searchLog=6,minMatch=3,targetLength=48,strategy=6"
roundTripTest -g512K " --single-thread --long --zstd=ldmHashLog=20,ldmMinMatch=64,ldmBucketSizeLog=1,ldmHashRateLog=7"
roundTripTest -g512K " --single-thread --long --zstd=lhlog=20,lmml=64,lblog=1,lhrlog=7"
roundTripTest -g64K  "19 --zstd=strat=9"   # btultra2


println "\n===>  Pass-Through mode "
println "Hello world 1!" | $ZSTD -df
println "Hello world 2!" | $ZSTD -dcf
println "Hello world 3!" > tmp1
$ZSTD -dcf tmp1


println "\n===>  frame concatenation "

println "hello " > hello.tmp
println "world!" > world.tmp
cat hello.tmp world.tmp > helloworld.tmp
$ZSTD -c hello.tmp > hello.zstd
$ZSTD -c world.tmp > world.zstd
cat hello.zstd world.zstd > helloworld.zstd
$ZSTD -dc helloworld.zstd > result.tmp
cat result.tmp
$DIFF helloworld.tmp result.tmp
println "frame concatenation without checksum"
$ZSTD -c hello.tmp > hello.zstd --no-check
$ZSTD -c world.tmp > world.zstd --no-check
cat hello.zstd world.zstd > helloworld.zstd
$ZSTD -dc helloworld.zstd > result.tmp
$DIFF helloworld.tmp result.tmp
println "testing zstdcat symlink"
ln -sf $ZSTD zstdcat
./zstdcat helloworld.zstd > result.tmp
$DIFF helloworld.tmp result.tmp
ln -s helloworld.zstd helloworld.link.zstd
./zstdcat helloworld.link.zstd > result.tmp
$DIFF helloworld.tmp result.tmp
rm zstdcat
rm result.tmp
println "testing zcat symlink"
ln -sf $ZSTD zcat
./zcat helloworld.zstd > result.tmp
$DIFF helloworld.tmp result.tmp
./zcat helloworld.link.zstd > result.tmp
$DIFF helloworld.tmp result.tmp
rm zcat
rm ./*.tmp ./*.zstd
println "frame concatenation tests completed"


if [ "$isWindows" = false ] && [ "$UNAME" != 'SunOS' ] && [ "$UNAME" != "OpenBSD" ] ; then
println "\n**** flush write error test **** "

println "println foo | $ZSTD > /dev/full"
println foo | $ZSTD > /dev/full && die "write error not detected!"
println "println foo | $ZSTD | $ZSTD -d > /dev/full"
println foo | $ZSTD | $ZSTD -d > /dev/full && die "write error not detected!"

fi


if [ "$isWindows" = false ] && [ "$UNAME" != 'SunOS' ] ; then

println "\n===>  symbolic link test "

rm -f hello.tmp world.tmp world2.tmp hello.tmp.zst world.tmp.zst
println "hello world" > hello.tmp
ln -s hello.tmp world.tmp
ln -s hello.tmp world2.tmp
$ZSTD world.tmp hello.tmp || true
test -f hello.tmp.zst  # regular file should have been compressed!
test ! -f world.tmp.zst  # symbolic link should not have been compressed!
$ZSTD world.tmp || true
test ! -f world.tmp.zst  # symbolic link should not have been compressed!
$ZSTD world.tmp world2.tmp || true
test ! -f world.tmp.zst  # symbolic link should not have been compressed!
test ! -f world2.tmp.zst  # symbolic link should not have been compressed!
$ZSTD world.tmp hello.tmp -f
test -f world.tmp.zst  # symbolic link should have been compressed with --force
rm -f hello.tmp world.tmp world2.tmp hello.tmp.zst world.tmp.zst

fi


println "\n===>  test sparse file support "

./datagen -g5M  -P100 > tmpSparse
$ZSTD tmpSparse -c | $ZSTD -dv -o tmpSparseRegen
$DIFF -s tmpSparse tmpSparseRegen
$ZSTD tmpSparse -c | $ZSTD -dv --sparse -c > tmpOutSparse
$DIFF -s tmpSparse tmpOutSparse
$ZSTD tmpSparse -c | $ZSTD -dv --no-sparse -c > tmpOutNoSparse
$DIFF -s tmpSparse tmpOutNoSparse
ls -ls tmpSparse*  # look at file size and block size on disk
./datagen -s1 -g1200007 -P100 | $ZSTD | $ZSTD -dv --sparse -c > tmpSparseOdd   # Odd size file (to not finish on an exact nb of blocks)
./datagen -s1 -g1200007 -P100 | $DIFF -s - tmpSparseOdd
ls -ls tmpSparseOdd  # look at file size and block size on disk
println "\n Sparse Compatibility with Console :"
println "Hello World 1 !" | $ZSTD | $ZSTD -d -c
println "Hello World 2 !" | $ZSTD | $ZSTD -d | cat
println "\n Sparse Compatibility with Append :"
./datagen -P100 -g1M > tmpSparse1M
cat tmpSparse1M tmpSparse1M > tmpSparse2M
$ZSTD -v -f tmpSparse1M -o tmpSparseCompressed
$ZSTD -d -v -f tmpSparseCompressed -o tmpSparseRegenerated
$ZSTD -d -v -f tmpSparseCompressed -c >> tmpSparseRegenerated
ls -ls tmpSparse*  # look at file size and block size on disk
$DIFF tmpSparse2M tmpSparseRegenerated
rm tmpSparse*


println "\n===>  multiple files tests "

./datagen -s1        > tmp1 2> $INTOVOID
./datagen -s2 -g100K > tmp2 2> $INTOVOID
./datagen -s3 -g1M   > tmp3 2> $INTOVOID
println "compress tmp* : "
$ZSTD -f tmp*
ls -ls tmp*
rm tmp1 tmp2 tmp3
println "decompress tmp* : "
$ZSTD -df ./*.zst
ls -ls tmp*
println "compress tmp* into stdout > tmpall : "
$ZSTD -c tmp1 tmp2 tmp3 > tmpall
ls -ls tmp*  # check size of tmpall (should be tmp1.zst + tmp2.zst + tmp3.zst)
println "decompress tmpall* into stdout > tmpdec : "
cp tmpall tmpall2
$ZSTD -dc tmpall* > tmpdec
ls -ls tmp* # check size of tmpdec (should be 2*(tmp1 + tmp2 + tmp3))
println "compress multiple files including a missing one (notHere) : "
$ZSTD -f tmp1 notHere tmp2 && die "missing file not detected!"


println "\n===>  stream-size mode"

./datagen -g11000 > tmp
println "test : basic file compression vs sized streaming compression"
file_size=$($ZSTD -14 -f tmp -o tmp.zst && wc -c < tmp.zst)
stream_size=$(cat tmp | $ZSTD -14 --stream-size=11000 | wc -c)
if [ "$stream_size" -gt "$file_size" ]; then
  die "hinted compression larger than expected"
fi
println "test : sized streaming compression and decompression"
cat tmp | $ZSTD -14 -f tmp -o --stream-size=11000 tmp.zst
$ZSTD -df tmp.zst -o tmp_decompress
cmp tmp tmp_decompress || die "difference between original and decompressed file"
println "test : incorrect stream size"
cat tmp | $ZSTD -14 -f -o tmp.zst --stream-size=11001 && die "should fail with incorrect stream size"


println "\n===>  size-hint mode"

./datagen -g11000 > tmp
./datagen -g11000 > tmp2
./datagen > tmpDict
println "test : basic file compression vs hinted streaming compression"
file_size=$($ZSTD -14 -f tmp -o tmp.zst && wc -c < tmp.zst)
stream_size=$(cat tmp | $ZSTD -14 --size-hint=11000 | wc -c)
if [ "$stream_size" -ge "$file_size" ]; then
  die "hinted compression larger than expected"
fi
println "test : hinted streaming compression and decompression"
cat tmp | $ZSTD -14 -f -o tmp.zst --size-hint=11000
$ZSTD -df tmp.zst -o tmp_decompress
cmp tmp tmp_decompress || die "difference between original and decompressed file"
println "test : hinted streaming compression with dictionary"
cat tmp | $ZSTD -14 -f -D tmpDict --size-hint=11000 | $ZSTD -t -D tmpDict
println "test : multiple file compression with hints and dictionary"
$ZSTD -14 -f -D tmpDict --size-hint=11000 tmp tmp2
$ZSTD -14 -f -o tmp1_.zst -D tmpDict --size-hint=11000 tmp
$ZSTD -14 -f -o tmp2_.zst -D tmpDict --size-hint=11000 tmp2
cmp tmp.zst tmp1_.zst || die "first file's output differs"
cmp tmp2.zst tmp2_.zst || die "second file's output differs"
println "test : incorrect hinted stream sizes"
cat tmp | $ZSTD -14 -f --size-hint=11050 | $ZSTD -t  # slightly too high
cat tmp | $ZSTD -14 -f --size-hint=10950 | $ZSTD -t  # slightly too low
cat tmp | $ZSTD -14 -f --size-hint=22000 | $ZSTD -t  # considerably too high
cat tmp | $ZSTD -14 -f --size-hint=5500  | $ZSTD -t  # considerably too low


println "\n===>  dictionary tests "

println "- test with raw dict (content only) "
./datagen > tmpDict
./datagen -g1M | $MD5SUM > tmp1
./datagen -g1M | $ZSTD -D tmpDict | $ZSTD -D tmpDict -dvq | $MD5SUM > tmp2
$DIFF -q tmp1 tmp2
println "- Create first dictionary "
TESTFILE="$PRGDIR"/zstdcli.c
$ZSTD --train "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict
cp "$TESTFILE" tmp
println "- Test dictionary compression with tmpDict as an input file and dictionary"
$ZSTD -f tmpDict -D tmpDict && die "compression error not detected!"
println "- Dictionary compression roundtrip"
$ZSTD -f tmp -D tmpDict
$ZSTD -d tmp.zst -D tmpDict -fo result
$DIFF "$TESTFILE" result
println "- Dictionary compression with btlazy2 strategy"
$ZSTD -f tmp -D tmpDict --zstd=strategy=6
$ZSTD -d tmp.zst -D tmpDict -fo result
$DIFF "$TESTFILE" result
if [ -n "$hasMT" ]
then
    println "- Test dictionary compression with multithreading "
    ./datagen -g5M | $ZSTD -T2 -D tmpDict | $ZSTD -t -D tmpDict   # fails with v1.3.2
fi
println "- Create second (different) dictionary "
$ZSTD --train "$TESTDIR"/*.c "$PRGDIR"/*.c "$PRGDIR"/*.h -o tmpDictC
$ZSTD -d tmp.zst -D tmpDictC -fo result && die "wrong dictionary not detected!"
println "- Create dictionary with short dictID"
$ZSTD --train "$TESTDIR"/*.c "$PRGDIR"/*.c --dictID=1 -o tmpDict1
cmp tmpDict tmpDict1 && die "dictionaries should have different ID !"
println "- Create dictionary with wrong dictID parameter order (must fail)"
$ZSTD --train "$TESTDIR"/*.c "$PRGDIR"/*.c --dictID -o 1 tmpDict1 && die "wrong order : --dictID must be followed by argument "
println "- Create dictionary with size limit"
$ZSTD --train "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict2 --maxdict=4K -v
println "- Create dictionary with small size limit"
$ZSTD --train "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict3 --maxdict=1K -v
println "- Create dictionary with wrong parameter order (must fail)"
$ZSTD --train "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict3 --maxdict -v 4K && die "wrong order : --maxdict must be followed by argument "
println "- Compress without dictID"
$ZSTD -f tmp -D tmpDict1 --no-dictID
$ZSTD -d tmp.zst -D tmpDict -fo result
$DIFF "$TESTFILE" result
println "- Compress with wrong argument order (must fail)"
$ZSTD tmp -Df tmpDict1 -c > $INTOVOID && die "-D must be followed by dictionary name "
println "- Compress multiple files with dictionary"
rm -rf dirTestDict
mkdir dirTestDict
cp "$TESTDIR"/*.c dirTestDict
cp "$PRGDIR"/*.c dirTestDict
cp "$PRGDIR"/*.h dirTestDict
$MD5SUM dirTestDict/* > tmph1
$ZSTD -f --rm dirTestDict/* -D tmpDictC
$ZSTD -d --rm dirTestDict/*.zst -D tmpDictC  # note : use internal checksum by default
case "$UNAME" in
  Darwin) println "md5sum -c not supported on OS-X : test skipped" ;;  # not compatible with OS-X's md5
  *) $MD5SUM -c tmph1 ;;
esac
rm -rf dirTestDict
println "- dictionary builder on bogus input"
println "Hello World" > tmp
$ZSTD --train-legacy -q tmp && die "Dictionary training should fail : not enough input source"
./datagen -P0 -g10M > tmp
$ZSTD --train-legacy -q tmp && die "Dictionary training should fail : source is pure noise"
println "- Test -o before --train"
rm -f tmpDict dictionary
$ZSTD -o tmpDict --train "$TESTDIR"/*.c "$PRGDIR"/*.c
test -f tmpDict
$ZSTD --train "$TESTDIR"/*.c "$PRGDIR"/*.c
test -f dictionary
rm tmp* dictionary


println "\n===>  fastCover dictionary builder : advanced options "
TESTFILE="$PRGDIR"/zstdcli.c
./datagen > tmpDict
println "- Create first dictionary"
$ZSTD --train-fastcover=k=46,d=8,f=15,split=80 "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict
cp "$TESTFILE" tmp
$ZSTD -f tmp -D tmpDict
$ZSTD -d tmp.zst -D tmpDict -fo result
$DIFF "$TESTFILE" result
println "- Create second (different) dictionary"
$ZSTD --train-fastcover=k=56,d=8 "$TESTDIR"/*.c "$PRGDIR"/*.c "$PRGDIR"/*.h -o tmpDictC
$ZSTD -d tmp.zst -D tmpDictC -fo result && die "wrong dictionary not detected!"
$ZSTD --train-fastcover=k=56,d=8 && die "Create dictionary without input file"
println "- Create dictionary with short dictID"
$ZSTD --train-fastcover=k=46,d=8,f=15,split=80 "$TESTDIR"/*.c "$PRGDIR"/*.c --dictID=1 -o tmpDict1
cmp tmpDict tmpDict1 && die "dictionaries should have different ID !"
println "- Create dictionaries with shrink-dict flag enabled"
$ZSTD --train-fastcover=steps=256,shrink "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpShrinkDict
$ZSTD --train-fastcover=steps=256,shrink=1 "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpShrinkDict1
$ZSTD --train-fastcover=steps=256,shrink=5 "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpShrinkDict2
println "- Create dictionary with size limit"
$ZSTD --train-fastcover=steps=8 "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict2 --maxdict=4K
println "- Compare size of dictionary from 90% training samples with 80% training samples"
$ZSTD --train-fastcover=split=90 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
$ZSTD --train-fastcover=split=80 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
println "- Create dictionary using all samples for both training and testing"
$ZSTD --train-fastcover=split=100 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
println "- Create dictionary using f=16"
$ZSTD --train-fastcover=f=16 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
$ZSTD --train-fastcover=accel=15 -r "$TESTDIR"/*.c "$PRGDIR"/*.c && die "Created dictionary using accel=15"
println "- Create dictionary using accel=2"
$ZSTD --train-fastcover=accel=2 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
println "- Create dictionary using accel=10"
$ZSTD --train-fastcover=accel=10 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
println "- Create dictionary with multithreading"
$ZSTD --train-fastcover -T4 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
println "- Test -o before --train-fastcover"
rm -f tmpDict dictionary
$ZSTD -o tmpDict --train-fastcover "$TESTDIR"/*.c "$PRGDIR"/*.c
test -f tmpDict
$ZSTD --train-fastcover "$TESTDIR"/*.c "$PRGDIR"/*.c
test -f dictionary
rm tmp* dictionary


println "\n===>  legacy dictionary builder "

TESTFILE="$PRGDIR"/zstdcli.c
./datagen > tmpDict
println "- Create first dictionary"
$ZSTD --train-legacy=selectivity=8 "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict
cp "$TESTFILE" tmp
$ZSTD -f tmp -D tmpDict
$ZSTD -d tmp.zst -D tmpDict -fo result
$DIFF "$TESTFILE" result
$ZSTD --train-legacy=s=8 && die "Create dictionary without input files (should error)"
println "- Create second (different) dictionary"
$ZSTD --train-legacy=s=5 "$TESTDIR"/*.c "$PRGDIR"/*.c "$PRGDIR"/*.h -o tmpDictC
$ZSTD -d tmp.zst -D tmpDictC -fo result && die "wrong dictionary not detected!"
println "- Create dictionary with short dictID"
$ZSTD --train-legacy -s5 "$TESTDIR"/*.c "$PRGDIR"/*.c --dictID=1 -o tmpDict1
cmp tmpDict tmpDict1 && die "dictionaries should have different ID !"
println "- Create dictionary with size limit"
$ZSTD --train-legacy -s9 "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict2 --maxdict=4K
println "- Test -o before --train-legacy"
rm -f tmpDict dictionary
$ZSTD -o tmpDict --train-legacy "$TESTDIR"/*.c "$PRGDIR"/*.c
test -f tmpDict
$ZSTD --train-legacy "$TESTDIR"/*.c "$PRGDIR"/*.c
test -f dictionary
rm tmp* dictionary


println "\n===>  integrity tests "

println "test one file (tmp1.zst) "
./datagen > tmp1
$ZSTD tmp1
$ZSTD -t tmp1.zst
$ZSTD --test tmp1.zst
println "test multiple files (*.zst) "
$ZSTD -t ./*.zst
println "test bad files (*) "
$ZSTD -t ./* && die "bad files not detected !"
$ZSTD -t tmp1 && die "bad file not detected !"
cp tmp1 tmp2.zst
$ZSTD -t tmp2.zst && die "bad file not detected !"
./datagen -g0 > tmp3
$ZSTD -t tmp3 && die "bad file not detected !"   # detects 0-sized files as bad
println "test --rm and --test combined "
$ZSTD -t --rm tmp1.zst
test -f tmp1.zst   # check file is still present
split -b16384 tmp1.zst tmpSplit.
$ZSTD -t tmpSplit.* && die "bad file not detected !"
./datagen | $ZSTD -c | $ZSTD -t



println "\n===>  golden files tests "

$ZSTD -t -r "$TESTDIR/files"
$ZSTD -c -r "$TESTDIR/files" | $ZSTD -t


println "\n===>  benchmark mode tests "

println "bench one file"
./datagen > tmp1
$ZSTD -bi0 tmp1
println "bench multiple levels"
$ZSTD -i0b0e3 tmp1
println "bench negative level"
$ZSTD -bi0 --fast tmp1
println "with recursive and quiet modes"
$ZSTD -rqi1b1e2 tmp1
println "benchmark decompression only"
$ZSTD -f tmp1
$ZSTD -b -d -i1 tmp1.zst

println "\n===>  zstd compatibility tests "

./datagen > tmp
rm -f tmp.zst
$ZSTD --format=zstd -f tmp
test -f tmp.zst

println "\n===>  gzip compatibility tests "

GZIPMODE=1
$ZSTD --format=gzip -V || GZIPMODE=0
if [ $GZIPMODE -eq 1 ]; then
    println "gzip support detected"
    GZIPEXE=1
    gzip -V || GZIPEXE=0
    if [ $GZIPEXE -eq 1 ]; then
        ./datagen > tmp
        $ZSTD --format=gzip -f tmp
        gzip -t -v tmp.gz
        gzip -f tmp
        $ZSTD -d -f -v tmp.gz
        rm tmp*
    else
        println "gzip binary not detected"
    fi
else
    println "gzip mode not supported"
fi


println "\n===>  gzip frame tests "

if [ $GZIPMODE -eq 1 ]; then
    ./datagen > tmp
    $ZSTD -f --format=gzip tmp
    $ZSTD -f tmp
    cat tmp.gz tmp.zst tmp.gz tmp.zst | $ZSTD -d -f -o tmp
    truncateLastByte tmp.gz | $ZSTD -t > $INTOVOID && die "incomplete frame not detected !"
    rm tmp*
else
    println "gzip mode not supported"
fi

if [ $GZIPMODE -eq 1 ]; then
    ./datagen > tmp
    rm -f tmp.zst
    $ZSTD --format=gzip --format=zstd -f tmp
    test -f tmp.zst
fi

println "\n===>  xz compatibility tests "

LZMAMODE=1
$ZSTD --format=xz -V || LZMAMODE=0
if [ $LZMAMODE -eq 1 ]; then
    println "xz support detected"
    XZEXE=1
    xz -Q -V && lzma -Q -V || XZEXE=0
    if [ $XZEXE -eq 1 ]; then
        println "Testing zstd xz and lzma support"
        ./datagen > tmp
        $ZSTD --format=lzma -f tmp
        $ZSTD --format=xz -f tmp
        xz -Q -t -v tmp.xz
        xz -Q -t -v tmp.lzma
        xz -Q -f -k tmp
        lzma -Q -f -k --lzma1 tmp
        $ZSTD -d -f -v tmp.xz
        $ZSTD -d -f -v tmp.lzma
        rm tmp*
        println "Creating symlinks"
        ln -s $ZSTD ./xz
        ln -s $ZSTD ./unxz
        ln -s $ZSTD ./lzma
        ln -s $ZSTD ./unlzma
        println "Testing xz and lzma symlinks"
        ./datagen > tmp
        ./xz tmp
        xz -Q -d tmp.xz
        ./lzma tmp
        lzma -Q -d tmp.lzma
        println "Testing unxz and unlzma symlinks"
        xz -Q tmp
        ./xz -d tmp.xz
        lzma -Q tmp
        ./lzma -d tmp.lzma
        rm xz unxz lzma unlzma
        rm tmp*
    else
        println "xz binary not detected"
    fi
else
    println "xz mode not supported"
fi


println "\n===>  xz frame tests "

if [ $LZMAMODE -eq 1 ]; then
    ./datagen > tmp
    $ZSTD -f --format=xz tmp
    $ZSTD -f --format=lzma tmp
    $ZSTD -f tmp
    cat tmp.xz tmp.lzma tmp.zst tmp.lzma tmp.xz tmp.zst | $ZSTD -d -f -o tmp
    truncateLastByte tmp.xz | $ZSTD -t > $INTOVOID && die "incomplete frame not detected !"
    truncateLastByte tmp.lzma | $ZSTD -t > $INTOVOID && die "incomplete frame not detected !"
    rm tmp*
else
    println "xz mode not supported"
fi

println "\n===>  lz4 compatibility tests "

LZ4MODE=1
$ZSTD --format=lz4 -V || LZ4MODE=0
if [ $LZ4MODE -eq 1 ]; then
    println "lz4 support detected"
    LZ4EXE=1
    lz4 -V || LZ4EXE=0
    if [ $LZ4EXE -eq 1 ]; then
        ./datagen > tmp
        $ZSTD --format=lz4 -f tmp
        lz4 -t -v tmp.lz4
        lz4 -f tmp
        $ZSTD -d -f -v tmp.lz4
        rm tmp*
    else
        println "lz4 binary not detected"
    fi
else
    println "lz4 mode not supported"
fi


println "\n===>  lz4 frame tests "

if [ $LZ4MODE -eq 1 ]; then
    ./datagen > tmp
    $ZSTD -f --format=lz4 tmp
    $ZSTD -f tmp
    cat tmp.lz4 tmp.zst tmp.lz4 tmp.zst | $ZSTD -d -f -o tmp
    truncateLastByte tmp.lz4 | $ZSTD -t > $INTOVOID && die "incomplete frame not detected !"
    rm tmp*
else
    println "lz4 mode not supported"
fi

println "\n===> suffix list test"

! $ZSTD -d tmp.abc 2> tmplg

if [ $GZIPMODE -ne 1 ]; then
    grep ".gz" tmplg > $INTOVOID && die "Unsupported suffix listed"
fi

if [ $LZMAMODE -ne 1 ]; then
    grep ".lzma" tmplg > $INTOVOID && die "Unsupported suffix listed"
    grep ".xz" tmplg > $INTOVOID && die "Unsupported suffix listed"
fi

if [ $LZ4MODE -ne 1 ]; then
    grep ".lz4" tmplg > $INTOVOID && die "Unsupported suffix listed"
fi

println "\n===>  zstd round-trip tests "

roundTripTest
roundTripTest -g15K       # TableID==3
roundTripTest -g127K      # TableID==2
roundTripTest -g255K      # TableID==1
roundTripTest -g522K      # TableID==0
roundTripTest -g519K 6    # greedy, hash chain
roundTripTest -g517K 16   # btlazy2
roundTripTest -g516K 19   # btopt

fileRoundTripTest -g500K

println "\n===>  zstd long distance matching round-trip tests "
roundTripTest -g0 "2 --single-thread --long"
roundTripTest -g1000K "1 --single-thread --long"
roundTripTest -g517K "6 --single-thread --long"
roundTripTest -g516K "16 --single-thread --long"
roundTripTest -g518K "19 --single-thread --long"
fileRoundTripTest -g5M "3 --single-thread --long"


roundTripTest -g96K "5 --single-thread"
if [ -n "$hasMT" ]
then
    println "\n===>  zstdmt round-trip tests "
    roundTripTest -g4M "1 -T0"
    roundTripTest -g8M "3 -T2"
    roundTripTest -g8000K "2 --threads=2"
    fileRoundTripTest -g4M "19 -T2 -B1M"

    println "\n===>  zstdmt long distance matching round-trip tests "
    roundTripTest -g8M "3 --long=24 -T2"

    println "\n===>  ovLog tests "
    ./datagen -g2MB > tmp
    refSize=$($ZSTD tmp -6 -c --zstd=wlog=18         | wc -c)
    ov9Size=$($ZSTD tmp -6 -c --zstd=wlog=18,ovlog=9 | wc -c)
    ov1Size=$($ZSTD tmp -6 -c --zstd=wlog=18,ovlog=1 | wc -c)
    if [ "$refSize" -eq "$ov9Size" ]; then
        echo ov9Size should be different from refSize
        exit 1
    fi
    if [ "$refSize" -eq "$ov1Size" ]; then
        echo ov1Size should be different from refSize
        exit 1
    fi
    if [ "$ov9Size" -ge "$ov1Size" ]; then
        echo ov9Size="$ov9Size" should be smaller than ov1Size="$ov1Size"
        exit 1
    fi

else
    println "\n===>  no multithreading, skipping zstdmt tests "
fi

rm tmp*

println "\n===>  zstd --list/-l single frame tests "
./datagen > tmp1
./datagen > tmp2
./datagen > tmp3
$ZSTD tmp*
$ZSTD -l ./*.zst
$ZSTD -lv ./*.zst | grep "Decompressed Size:"  # check that decompressed size is present in header
$ZSTD --list ./*.zst
$ZSTD --list -v ./*.zst

println "\n===>  zstd --list/-l multiple frame tests "
cat tmp1.zst tmp2.zst > tmp12.zst
cat tmp12.zst tmp3.zst > tmp123.zst
$ZSTD -l ./*.zst
$ZSTD -lv ./*.zst

println "\n===>  zstd --list/-l error detection tests "
$ZSTD -l tmp1 tmp1.zst && die "-l must fail on non-zstd file"
$ZSTD --list tmp* && die "-l must fail on non-zstd file"
$ZSTD -lv tmp1* && die "-l must fail on non-zstd file"
$ZSTD --list -v tmp2 tmp12.zst && die "-l must fail on non-zstd file"

println "test : detect truncated compressed file "
TEST_DATA_FILE=truncatable-input.txt
FULL_COMPRESSED_FILE=${TEST_DATA_FILE}.zst
TRUNCATED_COMPRESSED_FILE=truncated-input.txt.zst
./datagen -g50000 > $TEST_DATA_FILE
$ZSTD -f $TEST_DATA_FILE -o $FULL_COMPRESSED_FILE
dd bs=1 count=100 if=$FULL_COMPRESSED_FILE of=$TRUNCATED_COMPRESSED_FILE
$ZSTD --list $TRUNCATED_COMPRESSED_FILE && die "-l must fail on truncated file"

rm $TEST_DATA_FILE
rm $FULL_COMPRESSED_FILE
rm $TRUNCATED_COMPRESSED_FILE

println "\n===>  zstd --list/-l errors when presented with stdin / no files"
$ZSTD -l && die "-l must fail on empty list of files"
$ZSTD -l - && die "-l does not work on stdin"
$ZSTD -l < tmp1.zst && die "-l does not work on stdin"
$ZSTD -l - < tmp1.zst && die "-l does not work on stdin"
$ZSTD -l - tmp1.zst && die "-l does not work on stdin"
$ZSTD -l - tmp1.zst < tmp1.zst && die "-l does not work on stdin"
$ZSTD -l tmp1.zst < tmp2.zst # this will check tmp1.zst, but not tmp2.zst, which is not an error : zstd simply doesn't read stdin in this case. It must not error just because stdin is not a tty

println "\n===>  zstd --list/-l test with null files "
./datagen -g0 > tmp5
$ZSTD tmp5
$ZSTD -l tmp5.zst
$ZSTD -l tmp5* && die "-l must fail on non-zstd file"
$ZSTD -lv tmp5.zst | grep "Decompressed Size: 0.00 KB (0 B)"  # check that 0 size is present in header
$ZSTD -lv tmp5* && die "-l must fail on non-zstd file"

println "\n===>  zstd --list/-l test with no content size field "
./datagen -g513K | $ZSTD > tmp6.zst
$ZSTD -l tmp6.zst
$ZSTD -lv tmp6.zst | grep "Decompressed Size:"  && die "Field :Decompressed Size: should not be available in this compressed file"

println "\n===>   zstd --list/-l test with no checksum "
$ZSTD -f --no-check tmp1
$ZSTD -l tmp1.zst
$ZSTD -lv tmp1.zst

rm tmp*


println "\n===>   zstd long distance matching tests "
roundTripTest -g0 " --single-thread --long"
roundTripTest -g9M "2 --single-thread --long"
# Test parameter parsing
roundTripTest -g1M -P50 "1 --single-thread --long=29" " --memory=512MB"
roundTripTest -g1M -P50 "1 --single-thread --long=29 --zstd=wlog=28" " --memory=256MB"
roundTripTest -g1M -P50 "1 --single-thread --long=29" " --long=28 --memory=512MB"
roundTripTest -g1M -P50 "1 --single-thread --long=29" " --zstd=wlog=28 --memory=512MB"


if [ -n "$hasMT" ]
then
    println "\n===>   adaptive mode "
    roundTripTest -g270000000 " --adapt"
    roundTripTest -g27000000 " --adapt=min=1,max=4"
    println "===>   test: --adapt must fail on incoherent bounds "
    ./datagen > tmp
    $ZSTD -f -vv --adapt=min=10,max=9 tmp && die "--adapt must fail on incoherent bounds"

    println "\n===>   rsyncable mode "
    roundTripTest -g10M " --rsyncable"
    roundTripTest -g10M " --rsyncable -B100K"
    println "===>   test: --rsyncable must fail with --single-thread"
    $ZSTD -f -vv --rsyncable --single-thread tmp && die "--rsyncable must fail with --single-thread"
fi


if [ "$1" != "--test-large-data" ]; then
    println "Skipping large data tests"
    exit 0
fi


#############################################################################

println "\n===>   large files tests "

roundTripTest -g270000000 1
roundTripTest -g250000000 2
roundTripTest -g230000000 3

roundTripTest -g140000000 -P60 4
roundTripTest -g130000000 -P62 5
roundTripTest -g120000000 -P65 6

roundTripTest -g70000000 -P70 7
roundTripTest -g60000000 -P71 8
roundTripTest -g50000000 -P73 9

roundTripTest -g35000000 -P75 10
roundTripTest -g30000000 -P76 11
roundTripTest -g25000000 -P78 12

roundTripTest -g18000013 -P80 13
roundTripTest -g18000014 -P80 14
roundTripTest -g18000015 -P81 15
roundTripTest -g18000016 -P84 16
roundTripTest -g18000017 -P88 17
roundTripTest -g18000018 -P94 18
roundTripTest -g18000019 -P96 19

roundTripTest -g5000000000 -P99 1
roundTripTest -g1700000000 -P0 "1 --zstd=strategy=6"   # ensure btlazy2 can survive an overflow rescale

fileRoundTripTest -g4193M -P99 1


println "\n===>   zstd long, long distance matching round-trip tests "
roundTripTest -g270000000 "1 --single-thread --long"
roundTripTest -g130000000 -P60 "5 --single-thread --long"
roundTripTest -g35000000 -P70 "8 --single-thread --long"
roundTripTest -g18000001 -P80  "18 --single-thread --long"
# Test large window logs
roundTripTest -g700M -P50 "1 --single-thread --long=29"
roundTripTest -g600M -P50 "1 --single-thread --long --zstd=wlog=29,clog=28"


if [ -n "$hasMT" ]
then
    println "\n===>   zstdmt long round-trip tests "
    roundTripTest -g80000000 -P99 "19 -T2" " "
    roundTripTest -g5000000000 -P99 "1 -T2" " "
    roundTripTest -g500000000 -P97 "1 -T999" " "
    fileRoundTripTest -g4103M -P98 " -T0" " "
    roundTripTest -g400000000 -P97 "1 --long=24 -T2" " "
    # Exposes the bug in https://github.com/facebook/zstd/pull/1678
    # This test fails on 4 different travis builds at the time of writing
    # because it needs to allocate 8 GB of memory.
    # roundTripTest -g10G -P99 "1 -T1 --long=31 --zstd=clog=27 --fast=1000"
else
    println "\n**** no multithreading, skipping zstdmt tests **** "
fi


println "\n===>  cover dictionary builder : advanced options "

TESTFILE="$PRGDIR"/zstdcli.c
./datagen > tmpDict
println "- Create first dictionary"
$ZSTD --train-cover=k=46,d=8,split=80 "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict
cp "$TESTFILE" tmp
$ZSTD -f tmp -D tmpDict
$ZSTD -d tmp.zst -D tmpDict -fo result
$DIFF "$TESTFILE" result
$ZSTD --train-cover=k=56,d=8 && die "Create dictionary without input file (should error)"
println "- Create second (different) dictionary"
$ZSTD --train-cover=k=56,d=8 "$TESTDIR"/*.c "$PRGDIR"/*.c "$PRGDIR"/*.h -o tmpDictC
$ZSTD -d tmp.zst -D tmpDictC -fo result && die "wrong dictionary not detected!"
println "- Create dictionary using shrink-dict flag"
$ZSTD --train-cover=steps=256,shrink "$TESTDIR"/*.c "$PRGDIR"/*.c --dictID=1 -o tmpShrinkDict
$ZSTD --train-cover=steps=256,shrink=1 "$TESTDIR"/*.c "$PRGDIR"/*.c --dictID=1 -o tmpShrinkDict1
$ZSTD --train-cover=steps=256,shrink=5 "$TESTDIR"/*.c "$PRGDIR"/*.c --dictID=1 -o tmpShrinkDict2
println "- Create dictionary with short dictID"
$ZSTD --train-cover=k=46,d=8,split=80 "$TESTDIR"/*.c "$PRGDIR"/*.c --dictID=1 -o tmpDict1
cmp tmpDict tmpDict1 && die "dictionaries should have different ID !"
println "- Create dictionary with size limit"
$ZSTD --train-cover=steps=8 "$TESTDIR"/*.c "$PRGDIR"/*.c -o tmpDict2 --maxdict=4K
println "- Compare size of dictionary from 90% training samples with 80% training samples"
$ZSTD --train-cover=split=90 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
$ZSTD --train-cover=split=80 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
println "- Create dictionary using all samples for both training and testing"
$ZSTD --train-cover=split=100 -r "$TESTDIR"/*.c "$PRGDIR"/*.c
println "- Test -o before --train-cover"
rm -f tmpDict dictionary
$ZSTD -o tmpDict --train-cover "$TESTDIR"/*.c "$PRGDIR"/*.c
test -f tmpDict
$ZSTD --train-cover "$TESTDIR"/*.c "$PRGDIR"/*.c
test -f dictionary
rm -f tmp* dictionary


rm -f tmp*