sqlite/test/permutations.test

# 2008 June 21
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
db close

#-------------------------------------------------------------------------
# test_suite NAME OPTIONS
#
# where available options are:  
#
#       -description TITLE                  (default "")
#       -initialize  SCRIPT                 (default "")
#       -shutdown    SCRIPT                 (default "")
#       -presql      SQL                    (default "")
#       -files       LIST-OF-FILES          (default $::ALLTESTS)
#       -prefix      NAME                   (default "$::NAME.")
#
proc test_suite {name args} {

  set default(-shutdown)    ""
  set default(-initialize)  ""
  set default(-presql)      ""
  set default(-description) "no description supplied (fixme)"
  set default(-files)       ""
  set default(-prefix)      "${name}."

  array set options [array get default]
  if {[llength $args]%2} {
    error "uneven number of options/switches passed to test_suite"
  }
  foreach {k v} $args {
    set o [array names options ${k}*]
    if {[llength $o]>1}  { error "ambiguous option: $k" }
    if {[llength $o]==0} { error "unknown option: $k" }
    set options([lindex $o 0]) $v
  }

  set     ::testspec($name) [array get options]
  lappend ::testsuitelist $name

}

#-------------------------------------------------------------------------
# test_set ARGS...
#
proc test_set {args} {
  set isExclude 0
  foreach a $args {
    if {[string match -* $a]} {
      switch -- $a {
        -include { set isExclude 0 }
        -exclude { set isExclude 1 }
        default {
          error "Unknown switch: $a"
        }
      }
    } elseif {$isExclude == 0} {
      foreach f $a { set t($f) 1 }
    } else {
      foreach f $a { array unset t $f }
    }
  }

  return [array names t]
}

#-------------------------------------------------------------------------
# Set up the following global list variables containing the names of 
# various test scripts:
#
#   $alltests
#   $allquicktests
#
set alltests [list]
foreach f [glob $testdir/*.test] { lappend alltests [file tail $f] }
if {$::tcl_platform(platform)!="unix"} {
  set alltests [test_set $alltests -exclude crash.test crash2.test]
}
set alltests [test_set $alltests -exclude {
  all.test        async.test         quick.test  veryquick.test
  memleak.test    permutations.test  soak.test   fts3.test
  mallocAll.test
}]

set allquicktests [test_set $alltests -exclude {
  async2.test async3.test backup_ioerr.test corrupt.test
  corruptC.test crash.test crash2.test crash3.test crash4.test crash5.test
  crash6.test crash7.test delete3.test e_fts3.test fts3rnd.test
  fkey_malloc.test fuzz.test fuzz3.test fuzz_malloc.test in2.test loadext.test
  misc7.test mutex2.test notify2.test onefile.test pagerfault2.test 
  savepoint4.test savepoint6.test select9.test 
  speed1.test speed1p.test speed2.test speed3.test speed4.test 
  speed4p.test sqllimits1.test tkt2686.test thread001.test thread002.test
  thread003.test thread004.test thread005.test trans2.test vacuum3.test 
  incrvacuum_ioerr.test autovacuum_crash.test btree8.test shared_err.test
  vtab_err.test walslow.test walcrash.test 
  walthread.test 
}]

#############################################################################
# Start of tests
#

#-------------------------------------------------------------------------
# Define the generic test suites:
#
#   veryquick
#   quick
#   full
#   veryquick_plus_notify2
#
lappend ::testsuitelist xxx

test_suite "veryquick" -prefix "" -description {
  "Very" quick test suite. Runs in less than 5 minutes on a workstation. 
  This test suite is the same as the "quick" tests, except that some files
  that test malloc and IO errors are omitted.
} -files [
  test_set $allquicktests -exclude *malloc* *ioerr* *fault* 
]

test_suite "quick" -prefix "" -description {
  Quick test suite. Runs in around 10 minutes on a workstation.
} -files [
  test_set $allquicktests
]

test_suite "veryquick_plus_notify2" -prefix "" -description {
  Very quick test suite + file notify2.test. This is used by one of the 
  sqlite.org release test configurations.
} -files [ 
  test_set $allquicktests notify2.test -exclude *malloc* *ioerr* *fault*
]

test_suite "full" -prefix "" -description {
  Full test suite. Takes a long time.
} -files [ 
  test_set $alltests 
] -initialize {
  unset -nocomplain ::G(isquick)
}

lappend ::testsuitelist xxx
#-------------------------------------------------------------------------
# Define the coverage related test suites:
#
#   coverage-wal
#
test_suite "coverage-wal" -description {
  Coverage tests for file wal.c.
} -files {
  wal.test       wal2.test     wal3.test       walmode.test    
  walbak.test    walhook.test  walcrash2.test  walcksum.test
  walfault.test
} 

test_suite "coverage-pager" -description {
  Coverage tests for file pager.c.
} -files {
  pager1.test    pager2.test  pagerfault.test  pagerfault2.test
  walfault.test  walbak.test  journal2.test    tkt-9d68c883.test
} 


lappend ::testsuitelist xxx
#-------------------------------------------------------------------------
# Define the permutation test suites:
#

# Run some tests using pre-allocated page and scratch blocks.
#
test_suite "memsubsys1" -description {
  Tests using pre-allocated page and scratch blocks
} -files [
  test_set $::allquicktests -exclude ioerr5.test malloc5.test
] -initialize {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_pagecache 4096 24
  sqlite3_config_scratch 25000 1
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_pagecache 0 0
  sqlite3_config_scratch 0 0
  sqlite3_initialize
  autoinstall_test_functions
}

# Run some tests using pre-allocated page and scratch blocks. This time
# the allocations are too small to use in most cases.
#
# Both ioerr5.test and malloc5.test are excluded because they test the
# sqlite3_soft_heap_limit() and sqlite3_release_memory() functionality.
# This functionality is disabled if a pre-allocated page block is provided.
#
test_suite "memsubsys2" -description {
  Tests using small pre-allocated page and scratch blocks
} -files [
  test_set $::allquicktests -exclude ioerr5.test malloc5.test
] -initialize {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_pagecache 512 5
  sqlite3_config_scratch 1000 1
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_pagecache 0 0
  sqlite3_config_scratch 0 0
  sqlite3_initialize
  autoinstall_test_functions
}

# Run all tests with the lookaside allocator disabled.
#
test_suite "nolookaside" -description {
  OOM tests with lookaside disabled
} -initialize {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_lookaside 0 0
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_lookaside 100 500
  sqlite3_initialize
  autoinstall_test_functions
} -files $::allquicktests

# Run some tests in SQLITE_CONFIG_SINGLETHREAD mode.
#
test_suite "singlethread" -description {
  Tests run in SQLITE_CONFIG_SINGLETHREAD mode
} -initialize {
  catch {db close}
  sqlite3_shutdown
  catch {sqlite3_config singlethread}
  sqlite3_initialize
  autoinstall_test_functions
} -files {
  delete.test   delete2.test  insert.test  rollback.test  select1.test
  select2.test  trans.test    update.test  vacuum.test    types.test
  types2.test   types3.test
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  catch {sqlite3_config serialized}
  sqlite3_initialize
  autoinstall_test_functions
}

test_suite "nomutex" -description {
  Tests run with the SQLITE_OPEN_MULTITHREADED flag passed to sqlite3_open().
} -initialize {
  rename sqlite3 sqlite3_nomutex
  proc sqlite3 {args} {
    if {[string range [lindex $args 0] 0 0] ne "-"} {
      lappend args -fullmutex 0 -nomutex 1
    }
    uplevel [concat sqlite3_nomutex $args]
  }
} -files {
  delete.test   delete2.test  insert.test  rollback.test  select1.test
  select2.test  trans.test    update.test  vacuum.test    types.test
  types2.test   types3.test
} -shutdown {
  rename sqlite3 {}
  rename sqlite3_nomutex sqlite3
}

# Run some tests in SQLITE_CONFIG_MULTITHREAD mode.
#
test_suite "multithread" -description {
  Tests run in SQLITE_CONFIG_MULTITHREAD mode
} -initialize {
  catch {db close}
  sqlite3_shutdown
  catch {sqlite3_config multithread}
  sqlite3_initialize
  autoinstall_test_functions
} -files {
  delete.test   delete2.test  insert.test  rollback.test  select1.test
  select2.test  trans.test    update.test  vacuum.test    types.test
  types2.test   types3.test
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  catch {sqlite3_config serialized}
  sqlite3_initialize
  autoinstall_test_functions
}

# Run some tests in SQLITE_OPEN_FULLMUTEX mode.
#
test_suite "fullmutex" -description {
  Tests run in SQLITE_OPEN_FULLMUTEX mode
} -initialize {
  rename sqlite3 sqlite3_fullmutex
  proc sqlite3 {args} {
    if {[string range [lindex $args 0] 0 0] ne "-"} {
      lappend args -nomutex 0 -fullmutex 1
    }
    uplevel [concat sqlite3_fullmutex $args]
  }
} -files {
  delete.test   delete2.test  insert.test  rollback.test  select1.test
  select2.test  trans.test    update.test  vacuum.test    types.test
  types2.test   types3.test
} -shutdown {
  rename sqlite3 {}
  rename sqlite3_fullmutex sqlite3
}

# Run some tests using the "onefile" demo.
#
test_suite "onefile" -description {
  Run some tests using the "test_onefile.c" demo
} -initialize {
  rename sqlite3 sqlite3_onefile
  proc sqlite3 {args} {
    if {[string range [lindex $args 0] 0 0] ne "-"} {
      lappend args -vfs fs
    }
    uplevel [concat sqlite3_onefile $args]
  }
} -files {
  conflict.test  insert.test   insert2.test  insert3.test
  rollback.test  select1.test  select2.test  select3.test
} -shutdown {
  rename sqlite3 {}
  rename sqlite3_onefile sqlite3
}

# Run some tests using UTF-16 databases.
#
test_suite "utf16" -description {
  Run tests using UTF-16 databases
} -presql {
  pragma encoding = 'UTF-16'
} -files {
    alter.test alter3.test
    auth.test bind.test blob.test capi2.test capi3.test collate1.test
    collate2.test collate3.test collate4.test collate5.test collate6.test
    conflict.test date.test delete.test expr.test fkey1.test func.test
    hook.test index.test insert2.test insert.test interrupt.test in.test
    intpkey.test ioerr.test join2.test join.test lastinsert.test
    laststmtchanges.test limit.test lock2.test lock.test main.test 
    memdb.test minmax.test misc1.test misc2.test misc3.test notnull.test
    null.test progress.test quote.test rowid.test select1.test select2.test
    select3.test select4.test select5.test select6.test sort.test 
    subselect.test tableapi.test table.test temptable.test
    trace.test trigger1.test trigger2.test trigger3.test
    trigger4.test types2.test types.test unique.test update.test
    vacuum.test view.test where.test
}

# Run some tests in exclusive locking mode.
#
test_suite "exclusive" -description {
  Run tests in exclusive locking mode.
} -presql {
  pragma locking_mode = 'exclusive'
} -files {
  rollback.test select1.test select2.test 
  malloc.test ioerr.test
} 

# Run some tests in exclusive locking mode with truncated journals.
#
test_suite "exclusive-truncate" -description {
  Run tests in exclusive locking mode and truncate journal mode.
} -presql {
  pragma locking_mode = 'exclusive';
  pragma journal_mode = TRUNCATE;
} -files {
  delete.test delete2.test insert.test rollback.test select1.test
  select2.test update.test malloc.test ioerr.test
} 

# Run some tests in persistent journal mode.
#
test_suite "persistent_journal" -description {
  Run tests in persistent-journal mode.
} -presql {
  pragma journal_mode = persist
} -files {
  delete.test delete2.test insert.test rollback.test select1.test
  select2.test trans.test update.test vacuum.test 
}

# Run some tests in truncating journal mode.
#
test_suite "truncate_journal" -description {
  Run tests in persistent-journal mode.
} -presql {
  pragma journal_mode = truncate
} -files {
  delete.test delete2.test insert.test rollback.test select1.test
  select2.test trans.test update.test vacuum.test 
  malloc.test ioerr.test
}

# Run some error tests in persistent journal mode.
#
test_suite "persistent_journal_error" -description {
  Run malloc.test and ioerr.test in persistent-journal mode.
} -presql {
  pragma journal_mode = persist
} -files {
  malloc.test ioerr.test
}

# Run some tests in no journal mode.
#
test_suite "no_journal" -description {
  Run tests in no-journal mode.
} -presql {
  pragma journal_mode = persist
} -files {
  delete.test delete2.test insert.test rollback.test select1.test
  select2.test trans.test update.test vacuum.test 
}

# Run some error tests in no journal mode.
#
test_suite "no_journal_error" -description {
  Run malloc.test and ioerr.test in no-journal mode.
} -presql {
  pragma journal_mode = persist
} -files {
  malloc.test ioerr.test
}

# Run some crash-tests in autovacuum mode.
#
test_suite "autovacuum_crash" -description {
  Run crash.test in autovacuum mode.
} -presql {
  pragma auto_vacuum = 1
} -files crash.test

# Run some ioerr-tests in autovacuum mode.
#
test_suite "autovacuum_ioerr" -description {
  Run ioerr.test in autovacuum mode.
} -presql {
  pragma auto_vacuum = 1
} -files ioerr.test

# Run tests with an in-memory journal.
#
test_suite "inmemory_journal" -description {
  Run tests with an in-memory journal file.
} -presql {
  pragma journal_mode = 'memory'
} -files [test_set $::allquicktests -exclude {
  # Exclude all tests that simulate IO errors.
  autovacuum_ioerr2.test incrvacuum_ioerr.test ioerr.test
  ioerr.test ioerr2.test ioerr3.test ioerr4.test ioerr5.test
  vacuum3.test incrblob_err.test diskfull.test backup_ioerr.test
  e_fts3.test

  # Exclude test scripts that use tcl IO to access journal files or count
  # the number of fsync() calls.
  pager.test exclusive.test jrnlmode.test sync.test misc1.test 
  journal1.test conflict.test crash8.test tkt3457.test io.test

  # Exclude stmt.test, which expects sub-journals to use temporary files.
  stmt.test

  # WAL mode is different.
  wal*
}]

ifcapable mem3 {
  test_suite "memsys3" -description {
    Run tests using the allocator in mem3.c.
  } [test_set $::allquicktests -exclude {
    autovacuum.test           delete3.test              manydb.test
    bigrow.test               incrblob2.test            memdb.test
    bitvec.test               index2.test               memsubsys1.test
    capi3c.test               ioerr.test                memsubsys2.test
    capi3.test                join3.test                pagesize.test
    collate5.test             limit.test                backup_ioerr.test
    backup_malloc.test
  }] -initialize {
    catch {db close}
    sqlite3_reset_auto_extension
    sqlite3_shutdown
    sqlite3_config_heap 25000000 0
    sqlite3_config_lookaside 0 0
    ifcapable mem5 {
      # If both memsys3 and memsys5 are enabled in the build, the call to
      # [sqlite3_config_heap] will initialize the system to use memsys5.
      # The following overrides this preference and installs the memsys3
      # allocator.
      sqlite3_install_memsys3
    }
    install_malloc_faultsim 1 
    sqlite3_initialize
    autoinstall_test_functions
  } -shutdown {
    catch {db close}
    sqlite3_shutdown
    sqlite3_config_heap 0 0
    sqlite3_config_lookaside 100 500
    install_malloc_faultsim 1 
    sqlite3_initialize
    autoinstall_test_functions
  }
}

ifcapable mem5 {
  test_suite "memsys5" -description {
    Run tests using the allocator in mem5.c.
  } [test_set $::allquicktests -exclude {
    autovacuum.test           delete3.test              manydb.test
    bigrow.test               incrblob2.test            memdb.test
    bitvec.test               index2.test               memsubsys1.test
    capi3c.test               ioerr.test                memsubsys2.test
    capi3.test                join3.test                pagesize.test
    collate5.test             limit.test                zeroblob.test
  }] -initialize {
    catch {db close}
    sqlite3_shutdown
    sqlite3_config_heap 25000000 64
    sqlite3_config_lookaside 0 0
    install_malloc_faultsim 1 
    sqlite3_initialize
    autoinstall_test_functions
  } -shutdown {
    catch {db close}
    sqlite3_shutdown
    sqlite3_config_heap 0 0
    sqlite3_config_lookaside 100 500
    install_malloc_faultsim 1 
    sqlite3_initialize
    autoinstall_test_functions
  }

  test_suite "memsys5-2" -description {
    Run tests using the allocator in mem5.c in a different configuration.
  } -files {
    select1.test 
  } -initialize {
    catch {db close}
    sqlite3_shutdown
    sqlite3_config_heap 40000000 16
    sqlite3_config_lookaside 0 0
    install_malloc_faultsim 1 
    sqlite3_initialize
    autoinstall_test_functions
  } -shutdown {
    catch {db close}
    sqlite3_shutdown
    sqlite3_config_heap 0 0
    sqlite3_config_lookaside 100 500
    install_malloc_faultsim 1 
    sqlite3_initialize
    autoinstall_test_functions
  }
}

ifcapable threadsafe {
  test_suite "no_mutex_try" -description {
     The sqlite3_mutex_try() interface always fails
  } -files [
    test_set $::allquicktests -exclude mutex1.test mutex2.test
  ] -initialize {
    catch {db close}
    sqlite3_shutdown
    install_mutex_counters 1
    set ::disable_mutex_try 1
    sqlite3_initialize
    autoinstall_test_functions
  } -shutdown {
    catch {db close}
    sqlite3_shutdown
    install_mutex_counters 0
    sqlite3_initialize
    autoinstall_test_functions
  }
}

# run_tests "crash_safe_append" -description {
#   Run crash.test with persistent journals on a SAFE_APPEND file-system.
# } -initialize {
#   rename crashsql sa_crashsql
#   proc crashsql {args} {
#     set options [lrange $args 0 [expr {[llength $args]-2}]]
#     lappend options -char safe_append
#     set sql [lindex $args end]
#     lappend options "
#       PRAGMA journal_mode=persistent;
#       $sql
#     "
#     set fd [open test.db-journal w]
#     puts $fd [string repeat 1234567890 100000]
#     close $fd
#     eval sa_crashsql $options
#   }
# } -shutdown {
#   rename crashsql {}
#   rename sa_crashsql crashsql
# } -files crash.test

test_suite "safe_append" -description {
  Run some tests on a SAFE_APPEND file-system.
} -initialize {
  rename sqlite3 sqlite3_safeappend
  proc sqlite3 {args} {
    if {[string range [lindex $args 0] 0 0] ne "-"} {
      lappend args -vfs devsym
    }
    uplevel [concat sqlite3_safeappend $args]
  }
  sqlite3_simulate_device -char safe_append
} -shutdown {
  rename sqlite3 {}
  rename sqlite3_shutdown sqlite3
} -files [
  test_set $::allquicktests shared_err.test -exclude async3.test
]

# The set of tests to run on the alternative-pcache
set perm-alt-pcache-testset {
  async.test
  attach.test
  delete.test delete2.test
  index.test
  insert.test insert2.test
  join.test join2.test
  rollback.test
  select1.test select2.test
  trans.test
  update.test
}

test_suite "pcache0" -description {
  Alternative pcache implementation without random discard
} -initialize {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 1 0 1
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 0 0 0
  sqlite3_config_lookaside 100 500
  install_malloc_faultsim 1 
  sqlite3_initialize
  autoinstall_test_functions
} -files ${perm-alt-pcache-testset}

test_suite "pcache10" -description {
  Alternative pcache implementation without 10% random discard
} -initialize {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 1 50 1
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 0 0 0
  sqlite3_initialize
  autoinstall_test_functions
} -files ${perm-alt-pcache-testset}

test_suite "pcache50" -description {
  Alternative pcache implementation without 50% random discard
} -initialize {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 1 50 1
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 0 0 0
  sqlite3_initialize
  autoinstall_test_functions
} -files ${perm-alt-pcache-testset}

test_suite "pcache90" -description {
  Alternative pcache implementation without 90% random discard
} -initialize {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 1 50 1
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 0 0 0
  sqlite3_initialize
  autoinstall_test_functions
} -files ${perm-alt-pcache-testset}

test_suite "pcache100" -description {
  Alternative pcache implementation that always discards when unpinning
} -initialize {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 1 100 1
  sqlite3_initialize
  autoinstall_test_functions
} -shutdown {
  catch {db close}
  sqlite3_shutdown
  sqlite3_config_alt_pcache 0 0 0
  sqlite3_initialize
  autoinstall_test_functions
} -files ${perm-alt-pcache-testset}

test_suite "journaltest" -description {
  Check that pages are synced before being written (test_journal.c).
} -initialize {
  catch {db close}
  register_jt_vfs -default ""
} -shutdown {
  unregister_jt_vfs
} -files [test_set $::allquicktests -exclude {
  wal* incrvacuum.test ioerr.test corrupt4.test io.test crash8.test 
  async4.test bigfile.test
}]

if {[info commands register_demovfs] != ""} {
  test_suite "demovfs" -description {
    Check that the demovfs (code in test_demovfs.c) more or less works.
  } -initialize {
    register_demovfs
  } -shutdown {
    unregister_demovfs
  } -files {
    insert.test   insert2.test  insert3.test rollback.test 
    select1.test  select2.test  select3.test
  }
}

test_suite "wal" -description {
  Run tests with journal_mode=WAL
} -initialize {
  set ::G(savepoint6_iterations) 100
} -shutdown {
  unset -nocomplain ::G(savepoint6_iterations)
} -files {
  savepoint.test     savepoint2.test     savepoint6.test
  trans.test         avtrans.test
}
# End of tests
#############################################################################

# run_tests NAME OPTIONS
#
# where available options are:  
#
#       -description TITLE
#       -initialize  SCRIPT
#       -shutdown    SCRIPT
#       -presql      SQL
#       -files       LIST-OF-FILES
#       -prefix      NAME
#
proc run_tests {name args} {
  array set options $args

  set ::G(perm:name)         $name
  set ::G(perm:prefix)       $options(-prefix)
  set ::G(perm:presql)       $options(-presql)
  set ::G(isquick)           1

  uplevel $options(-initialize)

  foreach file [lsort $options(-files)] {
    slave_test_file $::testdir/$file
  }

  uplevel $options(-shutdown)

  unset ::G(perm:name)
  unset ::G(perm:prefix)
  unset ::G(perm:presql)
}

proc run_test_suite {name} {
  if {[info exists ::testspec($name)]==0} {
    error "No such test suite: $name"
  }
  uplevel run_tests $name $::testspec($name)
}

proc help {} {
  puts "Usage: $::argv0 TESTSUITE ?TESTFILE?"
  puts ""
  puts "Available test-suites are:"
  foreach k $::testsuitelist {
    if {[info exists ::testspec($k)]==0} {
      puts "         ----------------------------------------"
      puts ""
    } else {
      array set o $::testspec($k)
      puts "Test suite: \"$k\""
      set d [string trim $o(-description)]
      set d [regsub {\n *} $d "\n  "]
      puts "  $d"
      puts ""
    }
  }
  exit -1
}

if {[info script] == $argv0} {
  proc main {argv} {
    if {[llength $argv]==0} {
      help
    } else {
      set suite [lindex $argv 0]
      if {[info exists ::testspec($suite)]==0} help
      set extra ""
      if {[llength $argv]>1} { set extra [list -files [lrange $argv 1 end]] }
      eval run_tests $suite $::testspec($suite) $extra
    }
  }
  main $argv
  finish_test
}