diff --git a/requirements.txt b/requirements.txt
index 3e8378a..5826427 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 
 jinja2
-
+jinja2-strcase
diff --git a/tests/fhtagn-0.1.0/.github/workflows/run-tests.yml b/tests/fhtagn-0.1.0/.github/workflows/run-tests.yml
new file mode 100644
index 0000000..dd16ced
--- /dev/null
+++ b/tests/fhtagn-0.1.0/.github/workflows/run-tests.yml
@@ -0,0 +1,62 @@
+on:
+  - "push"
+
+name: "Run tests"
+
+jobs:
+  nix:
+    name: "*nix - all awks"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ ubuntu-20.04, ubuntu-22.04 ]
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/cache@v3
+        id: cache-soft
+        with:
+          path: soft
+          key: ${{ matrix.os }}-${{ hashFiles('Makesurefile') }}-soft--all-2
+
+      - name: "run tests"
+        run: |
+          ./makesure
+
+  macos:
+    name: "macOS"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ macos-11, macos-12, macos-13 ]
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/cache@v3
+        id: cache-soft
+        with:
+          path: soft
+          key: ${{ matrix.os }}-soft--macos
+
+      - name: "run tests"
+        run: |
+          ./makesure tested_by_default_awk
+
+  win:
+    name: "Win"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ windows-2019, windows-2022 ]
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/cache@v3
+        id: cache-soft
+        with:
+          path: soft
+          key: ${{ matrix.os }}-soft--win
+
+      - name: "run tests"
+        run: |
+          & bash -e -c "./makesure tested_by_default_awk"
diff --git a/tests/fhtagn-0.1.0/.gitignore b/tests/fhtagn-0.1.0/.gitignore
new file mode 100644
index 0000000..d889f19
--- /dev/null
+++ b/tests/fhtagn-0.1.0/.gitignore
@@ -0,0 +1,3 @@
+/*.iml
+/.idea/
+/soft/
\ No newline at end of file
diff --git a/tests/fhtagn-0.1.0/LICENSE b/tests/fhtagn-0.1.0/LICENSE
new file mode 100644
index 0000000..716c14a
--- /dev/null
+++ b/tests/fhtagn-0.1.0/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 Volodymyr Gubarkov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/tests/fhtagn-0.1.0/Makesurefile b/tests/fhtagn-0.1.0/Makesurefile
new file mode 100644
index 0000000..7ba5275
--- /dev/null
+++ b/tests/fhtagn-0.1.0/Makesurefile
@@ -0,0 +1,188 @@
+# vim: syntax=bash
+@options timing
+
+@define TUSH_REPO='https://github.com/adolfopa/tush'
+@define GOAWK_VERSION='1.23.1'
+@define GOAWK="goawk$GOAWK_VERSION"
+
+@goal soft_folder_created @private
+@reached_if [[ -d "soft" ]]
+  mkdir soft
+
+@goal tush_installed @private
+@depends_on soft_folder_created
+@reached_if [[ -f "soft/tush/bin/tush-check" ]]
+  echo
+  echo "Fetching tush..."
+  echo
+
+  cd "soft"
+
+  if command -v wget >/dev/null
+  then
+    wget $TUSH_REPO/archive/master.tar.gz -O./tush.tar.gz
+    tar xzvf ./tush.tar.gz
+    rm ./tush.tar.gz
+    mv tush-master tush
+  elif command -v curl >/dev/null
+  then
+    curl -L $TUSH_REPO/archive/master.tar.gz -o ./tush.tar.gz
+    tar xzvf ./tush.tar.gz
+    rm ./tush.tar.gz
+    mv tush-master tush
+  else
+    git clone --depth 1 $TUSH_REPO.git
+    rm -r tush/.git
+  fi
+
+@goal default
+@depends_on tested
+
+@goal tested
+@depends_on tested_by_default_awk
+@depends_on tested_by_bwk
+@depends_on tested_by_gawk
+@depends_on tested_by @args 'tush'   'mawk -f ./fhtagn.awk'
+@depends_on tested_by @args 'fhtagn' 'mawk -f ./fhtagn.awk'
+@depends_on tested_by_busybox_awk
+#@depends_on tested_by_goawk
+
+@goal tested_by_bwk
+@depends_on installed_bwk
+@depends_on tested_by @args 'tush'   './soft/bwk -f ./fhtagn.awk'
+@depends_on tested_by @args 'fhtagn' './soft/bwk -f ./fhtagn.awk'
+
+@goal tested_by_gawk
+@depends_on tested_by @args 'tush'   'gawk -f ./fhtagn.awk'
+@depends_on tested_by @args 'fhtagn' 'gawk -f ./fhtagn.awk'
+
+@goal tested_by_default_awk
+@depends_on tested_by @args 'tush'   './fhtagn.awk'
+@depends_on tested_by @args 'fhtagn' './fhtagn.awk'
+
+@goal tested_by_busybox_awk
+@depends_on installed_busybox
+@depends_on tested_by @args 'tush'   './soft/busybox awk -f ./fhtagn.awk'
+@depends_on tested_by @args 'fhtagn' './soft/busybox awk -f ./fhtagn.awk'
+
+@goal tested_by_goawk
+@depends_on installed_goawk
+@depends_on tested_by @args 'tush'   './soft/goawk1.23.1 -f ./fhtagn.awk'
+@depends_on tested_by @args 'fhtagn' './soft/goawk1.23.1 -f ./fhtagn.awk'
+
+@goal tested_by @params TOOL FHTAGN
+@depends_on tush_installed
+  f=tests/fhtagn.tush
+
+  echo "Testing with $TOOL ($FHTAGN)..."
+  export FHTAGN
+
+  calc_temp_files() {
+    local tmp_count=$(find /tmp -maxdepth 1 -type f -name 'fhtagn.*' | wc -l)
+    local cnt
+    (( cnt = tmp_count ))
+    if [[ -d "/dev/shm" ]]
+    then
+      local shm_count=$(find /dev/shm -maxdepth 1 -type f -name 'fhtagn.*' | wc -l)
+      (( cnt += shm_count ))
+    fi
+    echo $cnt
+  }
+
+  test_file() {
+    if [[ $TOOL == "tush" ]]
+    then
+      export PATH="$PATH:$MYDIR/soft/tush/bin"
+      DIFF="diff --strip-trailing-cr" tush-check "$f"
+    else
+      local before_count=$(calc_temp_files)
+      ./fhtagn.awk "$f"
+      local after_count=$(calc_temp_files)
+      if (( before_count != after_count ))
+      then
+        echo >&2 "!!! temp file not deleted !!!"
+        exit 1
+      fi
+    fi
+  }
+
+  if test_file
+  then
+    echo "TESTS PASSED : $f"
+  else
+    echo >&2 "!!! TESTS FAILED !!! : $f"
+    exit 1
+  fi
+
+@goal installed_bwk @private
+@reached_if [[ -f soft/bwk ]]
+@depends_on soft_folder_created
+  echo
+  echo "Fetching BWK..."
+  echo
+
+  cd "soft"
+
+  wget https://github.com/onetrueawk/awk/archive/refs/heads/master.tar.gz -Obwk.tar.gz
+  tar xzvf bwk.tar.gz
+  rm bwk.tar.gz
+
+  echo
+  echo "Compile BWK..."
+  echo
+
+  cd "awk-master"
+
+  make
+
+  mv a.out ../bwk
+
+  cd ..
+  ./bwk --version
+  rm -r awk-master
+
+@goal installed_busybox @private
+@reached_if [[ -x ./soft/busybox ]]
+  wget 'https://busybox.net/downloads/binaries/1.31.0-i686-uclibc/busybox' -O ./soft/busybox
+  chmod +x ./soft/busybox
+  echo "Installed: $(./soft/busybox | head -n 1)"
+
+@goal installed_goawk @private
+@reached_if [[ -f soft/$GOAWK ]]
+@depends_on soft_folder_created
+  echo
+  echo "Fetching GoAWK $GOAWK_VERSION ..."
+  echo
+
+  cd "soft"
+
+  if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+    os="linux"
+  elif [[ "$OSTYPE" == "darwin"* ]]; then
+    os="darwin"
+  else
+    >&2 echo "Unknown OS"
+    exit 1
+  fi
+
+  F=goawk_v${GOAWK_VERSION}_${os}_amd64.tar.gz
+  wget "https://github.com/benhoyt/goawk/releases/download/v$GOAWK_VERSION/$F"
+  tar xzvf "$F" goawk
+  rm "$F"
+
+  mv goawk $GOAWK
+  "./$GOAWK" --version
+
+@goal update_readme
+@doc 'updates the README.md with the current output of the tool'
+  awk '
+  !Off
+  Examples {
+    if (/^\$/) { Off=1; system(substr($0,2)) }
+    else if (/^```$/ && Off) { Off=0; print }
+  }
+  /## Usage/ { Examples=1 }
+  ' README.md > README.md.1
+  mv README.md.1 README.md
+
+
diff --git a/tests/fhtagn-0.1.0/README.md b/tests/fhtagn-0.1.0/README.md
new file mode 100644
index 0000000..5e8ebcb
--- /dev/null
+++ b/tests/fhtagn-0.1.0/README.md
@@ -0,0 +1,86 @@
+# fhtagn
+
+[![Run tests](https://github.com/xonixx/fhtagn/actions/workflows/run-tests.yml/badge.svg)](https://github.com/xonixx/fhtagn/actions/workflows/run-tests.yml)
+                    
+`fhtagn.awk` is a tiny CLI tool for literate testing for command-line programs.  
+                   
+File `tests.tush`:
+```
+$ command --that --should --execute correctly
+| expected stdout output
+
+$ command --that --will --cause error
+@ expected stderr output
+? expected-exit-code
+```
+
+Run the tests:
+```shell
+./fhtagn.awk tests.tush
+```
+
+In fact this is a re-implementation of [darius/tush](https://github.com/darius/tush), [adolfopa/tush](https://github.com/adolfopa/tush).
+But simpler (single tiny AWK script) and faster, because:
+                      
+- it uses `/dev/shm` where available instead of `/tmp`
+- it compares the expected result with the actual in the code and only calls `diff` to show the difference if they don't match
+- it doesn't create a sandbox folder for each test
+- it doesn't use `mktemp` but rather generates random name in the code
+
+## Usage
+
+```
+./fhtagn.awk f1.tush [ f2.tush [ f3.tush [...] ] ]
+```
+This will stop on the first error found.
+
+Example:
+```
+$ ./fhtagn.awk tests/1.tush tests/2.tush tests/3.tush 
+tests/2.tush:10: $ echo "hello world"; echo "error msg" >&2; exit 7
+--- expected
++++ actual
+@@ -1,4 +1,4 @@
+ | hello world
+-@ error msg 444
+-? 8
++@ error msg
++? 7
+ 
+```
+
+### Fail at the end
+      
+Set `ALL=1` environment variable.
+
+This runs all tests, collects all errors, and shows the stats at the end.
+```
+ALL=1 ./fhtagn.awk f1.tush [ f2.tush [ f3.tush [...] ] ]
+```
+
+Useful for running in CI.
+
+Example:
+```
+$ ALL=1 ./fhtagn.awk tests/1.tush tests/2.tush tests/3.tush 
+tests/2.tush:10: $ echo "hello world"; echo "error msg" >&2; exit 7
+--- expected
++++ actual
+@@ -1,4 +1,4 @@
+ | hello world
+-@ error msg 444
+-? 8
++@ error msg
++? 7
+ 
+tests/3.tush:4: $ echo bbb
+--- expected
++++ actual
+@@ -1,2 +1,2 @@
+-| BBB
++| bbb
+ 
+result=FAIL, failure=2, success=4, total=6, files=3
+```
+
+
diff --git a/tests/fhtagn-0.1.0/fhtagn.awk b/tests/fhtagn-0.1.0/fhtagn.awk
new file mode 100755
index 0000000..dd83f02
--- /dev/null
+++ b/tests/fhtagn-0.1.0/fhtagn.awk
@@ -0,0 +1,81 @@
+#!/usr/bin/awk -f
+BEGIN {
+  Prog = "fhtagn"
+  initTmpRnd()
+  if (!(Diff = ENVIRON["DIFF"])) Diff = "diff"
+  All = ENVIRON["ALL"]
+  srand()
+  Success = Failed = 0
+  fhtagn()
+}
+END { if (ToDel) system("rm -f" ToDel) }
+function initTmpRnd(   c) {
+  c = "[ -d /dev/shm ] && echo /dev/shm || echo /tmp ; echo $$"
+  c | getline Tmp
+  c | getline Rnd # additional source of "random"
+  close(c)
+}
+function fhtagn(   i,file,err,l,code,nr,line,random,exitCode,stdOutF,stdErrF,testStarted,expected,hasMoreCode) {
+  for (i = 1; i < ARGC; i++) {
+    file = ARGV[i]
+    for (nr = 1; (err = getline l < file) > 0; nr++) {
+      if (l ~ /^\$/) {
+        if (testStarted) # finish previous
+          checkTestResult(file,code,line,expected,stdOutF,stdErrF,exitCode,random)
+        testStarted = 1
+        expected = ""
+        # execute line starting '$', producing out & err & exit_code
+        ToDel = ToDel " " (stdOutF = tmpFile(random = rndS(), "out")) " " (stdErrF = tmpFile(random, "err"))
+        code = substr(l,2)
+        line = nr
+        if (!(hasMoreCode = l ~ /\\$/))
+          exitCode = run(code,stdOutF,stdErrF)
+      } else if (hasMoreCode) {
+        code = code "\n" l
+        if (!(hasMoreCode = l ~ /\\$/))
+          exitCode = run(code,stdOutF,stdErrF)
+      } else if (l ~ /^[|@?]/) {
+        # parse result block (|@?)
+        expected = expected l "\n"
+      } else if (testStarted) {
+        testStarted = 0
+        checkTestResult(file,code,line,expected,stdOutF,stdErrF,exitCode,random)
+      }
+    }
+    if (err) die("error reading file: " file)
+    close(file)
+    if (testStarted) {
+      testStarted = 0
+      checkTestResult(file,code,line,expected,stdOutF,stdErrF,exitCode,random)
+    }
+  }
+  if (All) printf "result=%s, failure=%d, success=%d, total=%d, files=%d\n", Failed ? "FAIL" : "SUCCESS", Failed, Success, Failed + Success, i - 1
+}
+function die(err) { print err > "/dev/stderr"; exit 2 }
+function checkTestResult(file, code, line, expected, stdOutF, stdErrF, exitCode, random,   actual,expectF,d) {
+  actual = prefixFile("|",stdOutF) prefixFile("@",stdErrF)
+  if (exitCode != 0) actual = actual "? " exitCode "\n"
+  if (expected != actual) {
+    Failed++
+    #     printf "FAIL:\nexpected:\n#%s#\nactual:\n#%s#\n", expected, actual
+    # use diff to show the difference
+    print expected > (expectF = tmpFile(random, "exp"))
+    close(expectF)
+    print file ":" line ": $" code
+    print actual | (d = Diff " -u --label expected --label actual " expectF " -; rm " expectF)
+    close(d)
+    if (!All) exit 1
+  } else Success++
+}
+function prefixFile(prefix, fname,   l,res,err) {
+  while ((err = getline l < fname) > 0)
+    res = res prefix " " l "\n"
+  if (err) die("error reading file: " fname)
+  close(fname)
+  return res
+}
+function run(code,stdOutF,stdErrF) {
+  return system("(" code ") 1>" stdOutF " 2>" stdErrF) # can it be that {} are better than ()?
+}
+function rndS() { return int(2147483647 * rand()) "." Rnd }
+function tmpFile(random, ext) { return sprintf("%s/%s.%s.%s", Tmp, Prog, random, ext) }
diff --git a/tests/fhtagn-0.1.0/gen_speed_test.awk b/tests/fhtagn-0.1.0/gen_speed_test.awk
new file mode 100755
index 0000000..6502eaa
--- /dev/null
+++ b/tests/fhtagn-0.1.0/gen_speed_test.awk
@@ -0,0 +1,12 @@
+#!/usr/bin/awk -f
+BEGIN {
+  for (i=0; i<N; i++) {
+    printf "Test #%d\n", i
+    printf "$ echo aaa%d; echo bbb%d; echo ccc%d >&2; exit %d\n", i, i, i, (exitCode = i % 128)
+    printf "| aaa%d\n", i
+    printf "| bbb%d\n", i
+    printf "@ ccc%d\n", i
+    if (exitCode) printf "? %d\n", exitCode
+    print
+  }
+}
\ No newline at end of file
diff --git a/tests/fhtagn-0.1.0/makesure b/tests/fhtagn-0.1.0/makesure
new file mode 100755
index 0000000..5d19851
--- /dev/null
+++ b/tests/fhtagn-0.1.0/makesure
@@ -0,0 +1,627 @@
+#!/bin/sh
+if command -v gawk >/dev/null;then makesure_awk='gawk -ltime -v Gawk=1';makesure_pre='';else makesure_awk=awk;makesure_pre='function gettimeofday(){}';fi
+exec $makesure_awk -v "Version=0.9.20" -v "Prog=$0" "$makesure_pre"'
+BEGIN {
+  Shell="bash"
+  SupportedShells["bash"]
+  SupportedShells["sh"]
+  SupportedOptions["tracing"]
+  SupportedOptions["silent"]
+  SupportedOptions["timing"]
+  DefinesCode=""
+  GlobCnt=0
+  GlobGoalName=""
+  Mode="prelude"
+  srand()
+  prepareArgs()
+  MyDirScript="MYDIR=" quoteArg(getMyDir(ARGV[1]))";export MYDIR;cd \"$MYDIR\""
+  Error=""
+  makesure()}
+function makesure(i){
+  while(getline>0){
+    Lines[NR]=$0
+    if($1~/^@/&&"@define"!=$1&&"@reached_if"!=$1)reparseCli()
+    if("@options"==$1)handleOptions()
+    else if("@define"==$1)handleDefine()
+    else if("@shell"==$1)handleShell()
+    else if("@goal"==$1){if("@glob"==$2||"@glob"==$3)handleGoalGlob();else handleGoal()}
+    else if("@doc"==$1)handleDoc()
+    else if("@depends_on"==$1)handleDependsOn()
+    else if("@reached_if"==$1)handleReachedIf()
+    else if("@lib"==$1)handleLib()
+    else if("@use_lib"==$1)handleUseLib()
+    else if($1~/^@/)addError("Unknown directive: " $1)
+    else handleCodeLine($0)
+    for(i=1;i<10;i++)$i=""}
+  doWork()
+  realExit(0)}
+function prepareArgs(i,arg){
+  for(i=2;i<ARGC;i++){
+    if(substr(arg=ARGV[i],1,1)=="-"){
+      if(arg=="-f"||arg=="--file"){
+        delete ARGV[i]
+        ARGV[1]=ARGV[++i]
+      }else if(arg=="-D"||arg=="--define"){
+        delete ARGV[i]
+        handleOptionDefineOverride(ARGV[++i])
+      }else
+        Args[arg]
+    }else
+      arrPush(ArgGoals,arg)
+    delete ARGV[i]}
+  if("-h" in Args||"--help" in Args){
+    print "makesure ver. " Version
+    print "Usage: makesure [options...] [-f buildfile] [goals...]"
+    print " -f,--file buildfile"
+    print "                 set buildfile to use (default Makesurefile)"
+    print " -l,--list       list all available non-@private goals"
+    print " -la,--list-all  list all available goals"
+    print " -d,--resolved   list resolved dependencies to reach given goals"
+    print " -D \"var=val\",--define \"var=val\""
+    print "                 override @define values"
+    print " -s,--silent     silent mode - only output what goals output"
+    print " -t,--timing     display execution times for goals and total"
+    print " -x,--tracing    enable tracing in bash/sh via `set -x`"
+    print " -v,--version    print version and exit"
+    print " -h,--help       print help and exit"
+    print " -U,--selfupdate update makesure to latest version"
+    realExit(0)
+  }else if("-v" in Args||"--version" in Args){
+    print Version
+    realExit(0)
+  }else if("-U" in Args||"--selfupdate" in Args){
+    selfUpdate()
+    realExit(0)}
+  if(!isFile(ARGV[1])){
+    if(isFile(ARGV[1] "/Makesurefile"))
+      ARGV[1]=ARGV[1] "/Makesurefile"
+    else
+      die("makesure file not found: " ARGV[1])}
+  if("-s" in Args||"--silent" in Args)
+    Options["silent"]
+  if("-x" in Args||"--tracing" in Args)
+    Options["tracing"]
+  if("-t" in Args||"--timing" in Args)
+    Options["timing"]}
+function splitKV(arg,kv,n){
+  n=index(arg,"=")
+  kv[0]=trim(substr(arg,1,n-1))
+  kv[1]=trim(substr(arg,n+1))}
+function handleOptionDefineOverride(arg,kv){
+  splitKV(arg,kv)
+  handleDefineLine(kv[0] "=" quoteArg(kv[1]))
+  DefineOverrides[kv[0]]}
+function handleOptions(i){
+  checkPreludeOnly()
+  if(NF<2)
+    addError("Provide at least one option")
+  for(i=2;i<=NF;i++){
+    if(!($i in SupportedOptions))
+      addError("Option '\''" $i "'\'' is not supported")
+    Options[$i]}}
+function handleDefine(){
+  started("define")
+  $1=""
+  handleDefineLine($0)}
+function handleDefineLine(line,kv){
+  if(!checkValidDefineSyntax(line))
+    return
+  splitKV(line,kv)
+  if(!(kv[0] in DefineOverrides))
+    DefinesCode=addL(DefinesCode,line "\nexport " kv[0])}
+function checkValidDefineSyntax(line){
+  if(line~/^[ \t]*[A-Za-z_][A-Za-z0-9_]*=(([A-Za-z0-9_]|(\\.))+|('\''[^'\'']*'\'')|("((\\\\)|(\\")|[^"])*")|(\$'\''((\\\\)|(\\'\'')|[^'\''])*'\''))*[ \t]*(#.*)?$/)
+    return 1
+  addError("Invalid define declaration")
+  return 0}
+function handleShell(){
+  checkPreludeOnly()
+  if(!((Shell=$2)in SupportedShells))
+    addError("Shell '\''" Shell "'\'' is not supported")}
+function timingOn(){
+  return "timing" in Options&&!("silent" in Options)}
+function started(mode){
+  Mode=mode}
+function handleLib(libName){
+  started("lib")
+  if((libName=$2)in Lib){
+    addError("Lib '\''" libName "'\'' is already defined")}
+  arrPush(LibNames,libName)
+  Lib[libName]}
+function handleUseLib(i){
+  checkGoalOnly()
+  if("goal"==Mode)
+    registerUseLib(currentGoalName())
+  else
+    for(i=0;i<GlobCnt;i++)
+      registerUseLib(globGoal(i))}
+function registerUseLib(goalName){
+  if(goalName in GoalToLib)
+    addError("You can only use one @lib in a @goal")
+  GoalToLib[goalName]=$2
+  UseLibLineNo[goalName]=NR}
+function handleGoal(i,goalName){
+  started("goal")
+  if(registerGoal(parsePriv(),goalName=$2))
+    if("@params"==$3){
+      if(3==NF)addError("missing parameters")
+      for(i=4;i<=NF;i++)
+        GoalParams[goalName,GoalParamsCnt[goalName]++]=validateParamName($i)
+    }else if(NF>2)addError("nothing allowed after goal name")}
+function validateParamName(p){
+  if(p !~ /^[A-Z_][A-Z0-9_]*$/)addError("@param name should match /^[A-Z_][A-Z0-9_]*$/: '\''" p "'\''")
+  return p}
+function registerGoal(priv,goalName){
+  if(""==goalName||"@params"==goalName)
+    addError("Goal must have a name")
+  else if(goalName in GoalsByName)
+    addError("Goal " quote2(goalName,1)" is already defined")
+  else {
+    arrPush(GoalNames,goalName)
+    GoalsByName[goalName]=priv
+    return 1}}
+function globGoal(i){return (GlobGoalName?GlobGoalName "@":"")GlobFiles[i]}
+function calcGlob(goalName,pattern,script,file){
+  GlobCnt=0
+  GlobGoalName=goalName
+  delete GlobFiles
+  script=MyDirScript ";for f in " pattern ";do test -e \"$f\"&&echo \"$f\"||:;done"
+  if("sh"!=Shell)
+    script=Shell " -c " quoteArg(script)
+  while((script|getline file)>0){
+    GlobCnt++
+    arrPush(GlobFiles,file)}
+  closeErr(script)
+  quicksort(GlobFiles,0,arrLen(GlobFiles)-1)}
+function parsePriv(){
+  if("@private"!=$NF)return 0
+  $NF=""
+  NF--
+  return 1}
+function handleGoalGlob(goalName,globAllGoal,globSingle,priv,i,pattern,nfMax){
+  started("goal_glob")
+  priv=parsePriv()
+  if("@glob"==(goalName=$2)){
+    goalName="";pattern=$(nfMax=3)
+  }else
+    pattern=$(nfMax=4)
+  if(NF>nfMax)
+    addError("nothing allowed after glob pattern")
+  else if(pattern=="")
+    addError("absent glob pattern")
+  else {
+    calcGlob(goalName,pattern)
+    globAllGoal=goalName?goalName:pattern
+    globSingle=GlobCnt==1&&globAllGoal==globGoal(0)
+    for(i=0;i<GlobCnt;i++)
+      registerGoal(globSingle?priv:1,globGoal(i))
+    if(!globSingle){
+      registerGoal(priv,globAllGoal)
+      for(i=0;i<GlobCnt;i++)
+        registerDependency(globAllGoal,globGoal(i))}}}
+function handleDoc(i){
+  checkGoalOnly()
+  if("goal"==Mode)
+    registerDoc(currentGoalName())
+  else {
+    if(!(GlobCnt==1&&currentGoalName()==globGoal(0)))
+      registerDoc(currentGoalName())
+    for(i=0;i<GlobCnt;i++)
+      registerDoc(globGoal(i))}}
+function registerDoc(goalName){
+  if(goalName in Doc)
+    addError("Multiple " $1 " not allowed for a goal")
+  $1=""
+  Doc[goalName]=trim($0)}
+function handleDependsOn(i){
+  checkGoalOnly()
+  if(NF<2)
+    addError("Provide at least one dependency")
+  if("goal"==Mode)
+    registerDependsOn(currentGoalName())
+  else
+    for(i=0;i<GlobCnt;i++)
+      registerDependsOn(globGoal(i))}
+function registerDependsOn(goalName,i,dep,x,y){
+  for(i=2;i<=NF;i++){
+    dep=$i
+    if("@args"==dep){
+      if(i!=3){
+        addError("@args only allowed at position 3")
+        break}
+      while(++i<=NF){
+        x=goalName SUBSEP DependenciesCnt[goalName]-1
+        y=x SUBSEP DependencyArgsCnt[x]++
+        DependencyArgs[y]=$i
+        DependencyArgsType[y]=Quotes[i]?"str":"var"}
+    }else
+      registerDependency(goalName,dep)}}
+function registerDependency(goalName,depGoalName,x){
+  Dependencies[x=goalName SUBSEP DependenciesCnt[goalName]++]=depGoalName
+  DependenciesLineNo[x]=NR}
+function handleReachedIf(i){
+  checkGoalOnly()
+  if("goal"==Mode)
+    registerReachedIf(currentGoalName())
+  else
+    for(i=0;i<GlobCnt;i++)
+      registerReachedIf(globGoal(i),makeGlobVarsCode(i))}
+function makeGlobVarsCode(i){
+  return "ITEM=" quoteArg(GlobFiles[i])";INDEX=" i ";TOTAL=" GlobCnt ";"}
+function registerReachedIf(goalName,preScript){
+  if(goalName in ReachedIf)
+    addError("Multiple " $1 " not allowed for a goal")
+  $1=""
+  ReachedIf[goalName]=preScript trim($0)}
+function checkBeforeRun(i,j,dep,depCnt,goalName){
+  for(i=0;i in GoalNames;i++){
+    depCnt=DependenciesCnt[goalName=GoalNames[i]]
+    for(j=0;j<depCnt;j++)
+      if(!((dep=Dependencies[goalName,j])in GoalsByName))
+        addError("Goal " quote2(goalName,1)" has unknown dependency '\''" dep "'\''",DependenciesLineNo[goalName,j])
+    if(goalName in GoalToLib&&!(GoalToLib[goalName] in Lib))
+      addError("Goal " quote2(goalName,1)" uses unknown lib '\''" GoalToLib[goalName] "'\''",UseLibLineNo[goalName])}}
+function getPreludeCode(a){
+  addLine(a,MyDirScript)
+  addLine(a,DefinesCode)
+  return a[0]}
+function doWork(\
+  i,goalName,gnLen,gnMaxLen,reachedGoals,emptyGoals,preludeCode,
+body,goalBody,goalBodies,resolvedGoals,exitCode,t0,t1,t2,goalTimed,list){
+  started("end")
+  checkBeforeRun()
+  if(arrLen(GoalNames))topologicalSort(0,GoalNames)
+  instantiateGoals()
+  if(Error)
+    die(Error)
+  list="-l" in Args||"--list" in Args
+  if(list||"-la" in Args||"--list-all" in Args){
+    print "Available goals:"
+    for(i=0;i in GoalNames;i++){
+      goalName=GoalNames[i]
+      if(list&&GoalsByName[goalName])
+        continue
+      if((gnLen=length(quote2(goalName)))>gnMaxLen&&gnLen<=30)
+        gnMaxLen=gnLen}
+    for(i=0;i in GoalNames;i++){
+      goalName=GoalNames[i]
+      if(list&&GoalsByName[goalName])
+        continue
+      printf "  "
+      if(goalName in Doc)
+        printf "%-" gnMaxLen "s : %s\n",quote2(goalName),Doc[goalName]
+      else
+        print quote2(goalName)}
+  }else {
+    if(timingOn())
+      t0=currentTimeMillis()
+    topologicalSort(1,ArgGoals,resolvedGoals,reachedGoals)
+    preludeCode=getPreludeCode()
+    for(i=0;i in GoalNames;i++){
+      body=trim(Code[goalName=GoalNames[i]])
+      emptyGoals[goalName]=""==body
+      goalBody[0]=""
+      addLine(goalBody,preludeCode)
+      addLine(goalBody,CodePre[goalName])
+      if(goalName in GoalToLib)
+        addLine(goalBody,Lib[GoalToLib[goalName]])
+      addLine(goalBody,body)
+      goalBodies[goalName]=goalBody[0]}
+    if("-d" in Args||"--resolved" in Args){
+      printf "Resolved goals to reach for"
+      for(i=0;i in ArgGoals;i++)
+        printf " %s",quote2(ArgGoals[i],1)
+      print ":"
+      for(i=0;i in resolvedGoals;i++)
+        if(!reachedGoals[goalName=resolvedGoals[i]]&&!emptyGoals[goalName])
+          print "  " quote2(goalName)
+    }else {
+      for(i=0;i in resolvedGoals;i++){
+        goalName=resolvedGoals[i]
+        goalTimed=timingOn()&&!reachedGoals[goalName]&&!emptyGoals[goalName]
+        if(goalTimed)
+          t1=t2?t2:currentTimeMillis()
+        if(!("silent" in Options))
+          print "  goal " quote2(goalName,1)" " (reachedGoals[goalName]?"[already satisfied].":emptyGoals[goalName]?"[empty].":"...")
+        exitCode=(reachedGoals[goalName]||emptyGoals[goalName])?0:shellExec(goalBodies[goalName],goalName)
+        if(exitCode!=0)
+          print "  goal " quote2(goalName,1)" failed"
+        if(goalTimed){
+          t2=currentTimeMillis()
+          print "  goal " quote2(goalName,1)" took " renderDuration(t2 - t1)}
+        if(exitCode!=0)
+          break}
+      if(timingOn())
+        print "  total time " renderDuration((t2?t2:currentTimeMillis())- t0)
+      if(exitCode!=0)
+        realExit(exitCode)}}}
+function topologicalSort(includeReachedIf,requestedGoals,result,reachedGoals,i,j,goalName,loop,depCnt){
+  topologicalSortReset()
+  for(i=0;i in GoalNames;i++){
+    depCnt=DependenciesCnt[goalName=GoalNames[i]]
+    for(j=0;j<depCnt;j++)
+      topologicalSortAddConnection(goalName,Dependencies[goalName,j])}
+  if(arrLen(requestedGoals)==0)
+    arrPush(requestedGoals,"default")
+  for(i=0;i in requestedGoals;i++){
+    if(!((goalName=requestedGoals[i])in GoalsByName))
+      die("Goal not found: " goalName)
+    topologicalSortPerform(includeReachedIf,reachedGoals,goalName,result,loop)}
+  if(loop[0]==1)
+    die("There is a loop in goal dependencies via " loop[1] " -> " loop[2])}
+function isCodeAllowed(){return "goal"==Mode||"goal_glob"==Mode||"lib"==Mode}
+function isPrelude(){return "prelude"==Mode}
+function checkPreludeOnly(){if(!isPrelude())addError("Only use " $1 " in prelude")}
+function checkGoalOnly(){if("goal"!=Mode&&"goal_glob"!=Mode)addError("Only use " $1 " in @goal")}
+function currentGoalName(){return arrLast(GoalNames)}
+function currentLibName(){return arrLast(LibNames)}
+function realExit(code){
+  exit code}
+function addError(err,n){if(!n)n=NR;Error=addL(Error,err ":\n" ARGV[1] ":" n ": " Lines[n])}
+function addErrorDedup(err,n){if((err,n)in AddedErrors)return;AddedErrors[err,n];addError(err,n)}
+function die(msg,out){
+  out="cat 1>&2"
+  print msg|out
+  close(out)
+  realExit(1)}
+function checkConditionReached(goalName,conditionStr,script){
+  script=getPreludeCode()
+  if(goalName in GoalToLib)
+    script=script "\n" Lib[GoalToLib[goalName]]
+  script=script "\n" conditionStr
+  return shellExec(script,goalName "@reached_if")==0}
+function shellExec(script,comment,res){
+  if("tracing" in Options){
+    script=": " quoteArg(comment)"\n" script
+    script=Shell " -x -e -c " quoteArg(script)
+  }else
+    script=Shell " -e -c " quoteArg(script)
+  script="trap '\''exit 7'\'' INT;" script
+  res=system(script)
+  return res}
+function getMyDir(makesurefilePath){
+  return executeGetLine("cd \"$(dirname " quoteArg(makesurefilePath)")\";pwd")}
+function handleCodeLine(line){
+  if(!isCodeAllowed()&&line !~ /^[ \t]*#/&&trim(line)!=""){
+    if(!ShellInPreludeErrorShown++)
+      addError("Shell code is not allowed outside goals/libs")
+  }else
+    addCodeLine(line)}
+function addCodeLine(line,goalName,name,i){
+  if("lib"==Mode){
+    name=currentLibName()
+    Lib[name]=addL(Lib[name],line)
+  }else if("goal_glob"==Mode){
+    for(i=0;i<GlobCnt;i++){
+      if(!CodePre[goalName=globGoal(i)])
+        CodePre[goalName]=makeGlobVarsCode(i)
+      addCodeLineToGoal(goalName,line)}
+  }else
+    addCodeLineToGoal(currentGoalName(),line)}
+function addCodeLineToGoal(name,line){
+  Code[name]=addL(Code[name],line)}
+function topologicalSortReset(){
+  delete Visited
+  delete Slist
+  delete Scnt}
+function topologicalSortAddConnection(from,to){
+  Slist[from,++Scnt[from]]=to}
+function topologicalSortPerform(includeReachedIf,reachedGoals,node,result,loop,i,s){
+  if(Visited[node]==2)
+    return
+  if(includeReachedIf&&node in ReachedIf&&checkConditionReached(node,ReachedIf[node])){
+    Visited[node]=2
+    arrPush(result,node)
+    reachedGoals[node]=1
+    return}
+  Visited[node]=1
+  for(i=1;i<=Scnt[node];i++){
+    if(Visited[s=Slist[node,i]]==0)
+      topologicalSortPerform(includeReachedIf,reachedGoals,s,result,loop)
+    else if(Visited[s]==1){
+      loop[0]=1
+      loop[1]=s
+      loop[2]=node}}
+  Visited[node]=2
+  arrPush(result,node)}
+function instantiateGoals(i,l,goalName){
+  l=arrLen(GoalNames)
+  for(i=0;i<l;i++)
+    if(GoalParamsCnt[goalName=GoalNames[i]]==0)
+      instantiate(goalName)
+  for(goalName in GoalsByName)
+    if(GoalParamsCnt[goalName]>0){
+      arrDel(GoalNames,goalName)
+      delete GoalsByName[goalName]}}
+function instantiate(goal,args,newArgs,i,j,depArg,depArgType,dep,goalNameInstantiated,argsCnt,gi,gii,argsCode){
+  goalNameInstantiated=instantiateGoalName(goal,args)
+  if(goalNameInstantiated!=goal){
+    if(!(goalNameInstantiated in GoalsByName))
+      arrPush(GoalNames,goalNameInstantiated)
+    copyKey(goal,goalNameInstantiated,GoalsByName)
+    copyKey(goal,goalNameInstantiated,DependenciesCnt)
+    copyKey(goal,goalNameInstantiated,CodePre)
+    copyKey(goal,goalNameInstantiated,Code)
+    copyKey(goal,goalNameInstantiated,Doc)
+    copyKey(goal,goalNameInstantiated,ReachedIf)
+    copyKey(goal,goalNameInstantiated,GoalToLib)
+    for(i in args)
+      argsCode=addL(argsCode,i "=" quoteArg(args[i]))
+    CodePre[goalNameInstantiated]=addL(CodePre[goalNameInstantiated],argsCode)
+    if(goalNameInstantiated in ReachedIf)
+      ReachedIf[goalNameInstantiated]=argsCode "\n" ReachedIf[goalNameInstantiated]}
+  for(i=0;i<DependenciesCnt[goal];i++){
+    dep=Dependencies[gi=goal SUBSEP i]
+    argsCnt=+DependencyArgsCnt[gi]
+    if(dep in GoalsByName&&argsCnt!=GoalParamsCnt[dep])
+      addErrorDedup("wrong args count for '\''" dep "'\''",DependenciesLineNo[gi])
+    for(j=0;j<argsCnt;j++){
+      depArg    =DependencyArgs    [gi,j]
+      depArgType=DependencyArgsType[gi,j]
+      newArgs[GoalParams[dep,j]]=\
+        depArgType=="str"?\
+          depArg : \
+          depArgType=="var"?\
+            (depArg in args?args[depArg]:addErrorDedup("wrong arg '\''" depArg "'\''",DependenciesLineNo[gi])):\
+            die("wrong depArgType: " depArgType)}
+    gii=goalNameInstantiated SUBSEP i
+    Dependencies[gii]=instantiate(dep,newArgs)
+    DependenciesLineNo[gii]=DependenciesLineNo[gi]
+    DependencyArgsCnt[gii]=0}
+  return goalNameInstantiated}
+function instantiateGoalName(goal,args,res,cnt,i){
+  if((cnt=GoalParamsCnt[goal])==0)return goal
+  res=goal
+  for(i=0;i<cnt;i++){
+    res=res "@" args[GoalParams[goal,i]]}
+  return res}
+function currentTimeMillis(res){
+  if(Gawk)
+    return int(gettimeofday()*1000)
+  res=executeGetLine("date +%s%3N")
+  sub(/%?3N/,"000",res)
+  return +res}
+function selfUpdate(url,tmp,err,newVer){
+  url="https://raw.githubusercontent.com/xonixx/makesure/main/makesure?token=" rand()
+  tmp=executeGetLine("mktemp /tmp/makesure_new.XXXXXXXXXX")
+  err=dl(url,tmp)
+  if(!err&&!ok("chmod +x " tmp))err="can'\''t chmod +x " tmp
+  if(!err){
+    newVer=executeGetLine(tmp " -v")
+    if(Version!=newVer){
+      if(!ok("cp " tmp " " quoteArg(Prog)))
+        err="can'\''t overwrite " Prog
+      else print "updated " Version " -> " newVer
+    }else print "you have latest version " Version " installed"}
+  rm(tmp)
+  if(err)die(err)}
+function renderDuration(deltaMillis,\
+  deltaSec,deltaMin,deltaHr,deltaDay,dayS,hrS,minS,secS,secSI,res){
+  deltaSec=deltaMillis/1000
+  deltaMin=0
+  deltaHr=0
+  deltaDay=0
+  if(deltaSec>=60){
+    deltaMin=int(deltaSec/60)
+    deltaSec=deltaSec - deltaMin*60}
+  if(deltaMin>=60){
+    deltaHr=int(deltaMin/60)
+    deltaMin=deltaMin - deltaHr*60}
+  if(deltaHr>=24){
+    deltaDay=int(deltaHr/24)
+    deltaHr=deltaHr - deltaDay*24}
+  dayS=deltaDay>0?deltaDay " d":""
+  hrS=deltaHr>0?deltaHr " h":""
+  minS=deltaMin>0?deltaMin " m":""
+  secS=deltaSec>0?deltaSec " s":""
+  secSI=deltaSec>0?int(deltaSec)" s":""
+  if(dayS!="")
+    res=dayS " " (hrS==""?"0 h":hrS)
+  else if(deltaHr>0)
+    res=hrS " " (minS==""?"0 m":minS)
+  else if(deltaMin>0)
+    res=minS " " (secSI==""?"0 s":secSI)
+  else
+    res=deltaSec>0?secS:"0 s"
+  return res}
+function executeGetLine(script,res){
+  script|getline res
+  closeErr(script)
+  return res}
+function closeErr(script){if(close(script)!=0)die("Error executing: " script)}
+function dl(url,dest,verbose){
+  verbose="VERBOSE" in ENVIRON
+  if(commandExists("wget")){
+    if(!ok("wget " (verbose?"":"-q")" " quoteArg(url)" -O" quoteArg(dest)))
+      return "error with wget"
+  }else if(commandExists("curl")){
+    if(!ok("curl " (verbose?"":"-s")" " quoteArg(url)" -o " quoteArg(dest)))
+      return "error with curl"
+  }else return "wget/curl not found"}
+function natOrder(s1,s2,i1,i2,c1,c2,n1,n2){
+  if(_digit(c1=substr(s1,i1,1))&&_digit(c2=substr(s2,i2,1))){
+    n1=+c1;while(_digit(c1=substr(s1,++i1,1))){n1=n1*10+c1}
+    n2=+c2;while(_digit(c2=substr(s2,++i2,1))){n2=n2*10+c2}
+    return n1==n2?natOrder(s1,s2,i1,i2):_cmp(n1,n2)}
+  while((c1=substr(s1,i1,1))==(c2=substr(s2,i2,1))&&c1!=""&&!_digit(c1)){
+    i1++;i2++}
+  return _digit(c1)&&_digit(c2)?natOrder(s1,s2,i1,i2):_cmp(c1,c2)}
+function _cmp(v1,v2){return v1>v2?1:v1<v2?-1:0}
+function _digit(c){return c>="0"&&c<="9"}
+function quicksort(data,left,right,i,last){
+  if(left>=right)
+    return
+  quicksortSwap(data,left,int((left+right)/2))
+  last=left
+  for(i=left+1;i<=right;i++)
+    if(natOrder(data[i],data[left],1,1)<0)
+      quicksortSwap(data,++last,i)
+  quicksortSwap(data,left,last)
+  quicksort(data,left,last - 1)
+  quicksort(data,last+1,right)}
+function quicksortSwap(data,i,j,temp){
+  temp=data[i]
+  data[i]=data[j]
+  data[j]=temp}
+function parseCli(line,res,pos,c,last,is_doll,c1){
+  for(pos=1;;){
+    while((c=substr(line,pos,1))==" "||c=="\t")pos++
+    if((c=substr(line,pos,1))=="#"||c=="")
+      return
+    else {
+      if((is_doll=c=="$")&&substr(line,pos+1,1)=="'\''"||c=="'\''"){
+        if(is_doll)
+          pos++
+        res[last=res[-7]++]=""
+        res[last,"quote"]=is_doll?"$":"'\''"
+        while((c=substr(line,++pos,1))!="'\''"){
+          if(c=="")
+            return "unterminated argument"
+          else if(is_doll&&c=="\\"&&((c1=substr(line,pos+1,1))=="'\''"||c1==c)){
+            c=c1;pos++}
+          res[last]=res[last] c}
+        if((c=substr(line,++pos,1))!=""&&c!=" "&&c!="\t")
+          return "joined arguments"
+      }else {
+        res[last=res[-7]++]=c
+        while((c=substr(line,++pos,1))!=""&&c!=" "&&c!="\t"){
+          if(c=="'\''")
+            return "joined arguments"
+          res[last]=res[last] c}}}}}
+function reparseCli(res,i,err){
+  err=parseCli($0,res)
+  if(err){
+    addError("Syntax error: " err)
+    die(Error)
+  }else {
+    $0=""
+    for(i=NF=0;i in res;i++){
+      $(++NF)=res[i]
+      Quotes[NF]=res[i,"quote"]}}}
+function quote2(s,force){
+  if(index(s,"'\''")){
+    gsub(/\\/,"\\\\",s)
+    gsub(/'\''/,"\\'\''",s)
+    return "$'\''" s "'\''"
+  }else
+    return force||s~/[^a-zA-Z0-9.,@_\/=+-]/?"'\''" s "'\''":s}
+function addLine(target,line){target[0]=addL(target[0],line)}
+function addL(s,l){return s?s "\n" l:l}
+function arrPush(arr,elt){arr[arr[-7]++]=elt}
+function arrLen(arr){return +arr[-7]}
+function arrDel(arr,v,l,i,e,resArr){
+  l=arrLen(arr)
+  for(i=0;i<l;i++)
+    if(v!=(e=arr[i]))
+      arrPush(resArr,e)
+  delete arr
+  for(i in resArr)
+    arr[i]=resArr[i]}
+function arrLast(arr,l){return (l=arrLen(arr))>0?arr[l-1]:""}
+function commandExists(cmd){return ok("command -v " cmd " >/dev/null")}
+function ok(cmd){return system(cmd)==0}
+function isFile(path){return ok("test -f " quoteArg(path))}
+function rm(f){system("rm " quoteArg(f))}
+function quoteArg(a){gsub("'\''","'\''\\'\'''\''",a);return "'\''" a "'\''"}
+function trim(s){sub(/^[ \t\r\n]+/,"",s);sub(/[ \t\r\n]+$/,"",s);return s}
+function copyKey(keySrc,keyDst,arr){if(keySrc in arr)arr[keyDst]=arr[keySrc]}' Makesurefile "$@"
diff --git a/tests/fhtagn-0.1.0/tests/1.tush b/tests/fhtagn-0.1.0/tests/1.tush
new file mode 100644
index 0000000..cfbbbd4
--- /dev/null
+++ b/tests/fhtagn-0.1.0/tests/1.tush
@@ -0,0 +1,15 @@
+
+success
+=======
+
+$ echo OK
+| OK
+
+
+error
+=====
+
+$ echo "hello world"; echo "error msg" >&2; exit 7
+| hello world
+@ error msg
+? 7
diff --git a/tests/fhtagn-0.1.0/tests/2.tush b/tests/fhtagn-0.1.0/tests/2.tush
new file mode 100644
index 0000000..77cd11b
--- /dev/null
+++ b/tests/fhtagn-0.1.0/tests/2.tush
@@ -0,0 +1,15 @@
+
+success
+=======
+
+$ echo OK
+| OK
+
+
+error
+=====
+
+$ echo "hello world"; echo "error msg" >&2; exit 7
+| hello world
+@ error msg 444
+? 8
diff --git a/tests/fhtagn-0.1.0/tests/3.tush b/tests/fhtagn-0.1.0/tests/3.tush
new file mode 100644
index 0000000..ee4ba2d
--- /dev/null
+++ b/tests/fhtagn-0.1.0/tests/3.tush
@@ -0,0 +1,8 @@
+
+testing the 2nd test goes immediately after the 1st
+===================================================
+
+$ echo aaa
+| aaa
+$ echo bbb
+| BBB
\ No newline at end of file
diff --git a/tests/fhtagn-0.1.0/tests/4-multiline.tush b/tests/fhtagn-0.1.0/tests/4-multiline.tush
new file mode 100644
index 0000000..2dc095c
--- /dev/null
+++ b/tests/fhtagn-0.1.0/tests/4-multiline.tush
@@ -0,0 +1,28 @@
+
+OK 1
+====
+
+$ echo 111; \
+  echo 222
+| 111
+| 222
+
+OK 2
+====
+
+$ echo 111; \
+  echo 222; \
+  echo 333 >&2 ; \
+  exit 7
+| 111
+| 222
+@ 333
+? 7
+
+Test err
+========
+
+$ echo 111; \
+  echo 222
+| 111
+| 777
diff --git a/tests/fhtagn-0.1.0/tests/fhtagn.tush b/tests/fhtagn-0.1.0/tests/fhtagn.tush
new file mode 100644
index 0000000..d541be4
--- /dev/null
+++ b/tests/fhtagn-0.1.0/tests/fhtagn.tush
@@ -0,0 +1,71 @@
+
+$ cd "$MYDIR"; $FHTAGN -- absent
+@ error reading file: absent
+? 2
+
+$ cd "$MYDIR"; $FHTAGN -- tests/1.tush
+
+$ cd "$MYDIR"; ./tests/trimBlank.sh $FHTAGN tests/2.tush
+| tests/2.tush:12: $ echo "hello world"; echo "error msg" >&2; exit 7
+| --- expected
+| +++ actual
+| @@ -1,4 +1,4 @@
+|  | hello world
+| -@ error msg 444
+| -? 8
+| +@ error msg
+| +? 7
+| ---blank---
+? 1
+
+$ cd "$MYDIR"; ./tests/trimBlank.sh $FHTAGN tests/3.tush
+| tests/3.tush:7: $ echo bbb
+| --- expected
+| +++ actual
+| @@ -1,2 +1,2 @@
+| -| BBB
+| +| bbb
+| ---blank---
+? 1
+
+$ cd "$MYDIR"; ./tests/trimBlank.sh $FHTAGN tests/1.tush tests/3.tush
+| tests/3.tush:7: $ echo bbb
+| --- expected
+| +++ actual
+| @@ -1,2 +1,2 @@
+| -| BBB
+| +| bbb
+| ---blank---
+? 1
+
+$ cd "$MYDIR"; ALL=1 ./tests/trimBlank.sh $FHTAGN tests/1.tush tests/2.tush tests/3.tush
+| tests/2.tush:12: $ echo "hello world"; echo "error msg" >&2; exit 7
+| --- expected
+| +++ actual
+| @@ -1,4 +1,4 @@
+|  | hello world
+| -@ error msg 444
+| -? 8
+| +@ error msg
+| +? 7
+| ---blank---
+| tests/3.tush:7: $ echo bbb
+| --- expected
+| +++ actual
+| @@ -1,2 +1,2 @@
+| -| BBB
+| +| bbb
+| ---blank---
+| result=FAIL, failure=2, success=4, total=6, files=3
+
+$ cd "$MYDIR"; ./tests/trimBlank.sh $FHTAGN tests/4-multiline.tush
+| tests/4-multiline.tush:25: $ echo 111; \
+|   echo 222
+| --- expected
+| +++ actual
+| @@ -1,3 +1,3 @@
+|  | 111
+| -| 777
+| +| 222
+| ---blank---
+? 1
diff --git a/tests/fhtagn-0.1.0/tests/trimBlank.sh b/tests/fhtagn-0.1.0/tests/trimBlank.sh
new file mode 100755
index 0000000..e9f4708
--- /dev/null
+++ b/tests/fhtagn-0.1.0/tests/trimBlank.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+# trims blank lines but preserves exit code
+
+o=$(mktemp)
+e=$(mktemp)
+
+( "$@" ) 1>"$o" 2>"$e"
+
+err=$?
+
+awkScript='{ print NF ? $0 : "---blank---" }'
+
+awk "$awkScript" "$o"
+awk "$awkScript" "$e" >&2
+
+rm "$o" "$e"
+
+exit $err
\ No newline at end of file
diff --git a/tests/sanity.tush b/tests/sanity.tush
new file mode 100644
index 0000000..90e1c77
--- /dev/null
+++ b/tests/sanity.tush
@@ -0,0 +1,30 @@
+Try every command 
+=================
+
+Remove previously created files if present
+$ rm -rf example file.txt
+
+$ ../bin/vte
+@ usage: vte [-h] {generate,preprocess,list,quickstart} ...
+@ vte: error: the following arguments are required: subcmd
+? 2
+
+Expecting no output yet
+$ ../bin/vte list
+
+Quickstart does not generate the output directory
+$ mkdir example
+
+$ echo "Example" | ../bin/vte quickstart -o example
+| Verification Template Engine Quickstart
+| Template directory: example
+| Template Description []? 
+
+
+$ VTE_TEMPLATE_PATH=. ../bin/vte list
+| example - Example
+
+$ touch file.txt 
+$ VTE_TEMPLATE_PATH=. ../bin/vte preprocess file.txt
+
+$ VTE_TEMPLATE_PATH=. ../bin/vte generate example hello