use v6.e.PREVIEW;
use Test;
plan 2;

# output of "perl6 -e '.say for SETTING::.keys.sort.map: { qq:!c/  Q{$_},/ }'"
my %allowed = (
    Q{!INIT_VALUES},
    Q{$¢},
    Q{$!},
    Q{$/},
    Q{$=pod},
    Q{$?BITS},
    Q{$?COMPILATION-ID},
    Q{$?NL},
    Q{$?TABSTOP},
    Q{$_},
    Q{&CLONE-HASH-DECONTAINERIZED},
    Q{&CLONE-LIST-DECONTAINERIZED},
    Q{&CMP-SLOW},
    Q{&COMP_EXCEPTION},
    Q{&CREATE_RATIONAL_FROM_INTS},
    Q{&DEPRECATED},
    Q{&DIVIDE_NUMBERS},
    Q{&DUMP},
    Q{&DYNAMIC},
    Q{&ENUM_VALUES},
    Q{&EVAL},
    Q{&EVALFILE},
    Q{&EXCEPTION},
    Q{&GATHER},
    Q{&GENERATE-ROLE-FROM-VALUE},
    Q{&HOW},
    Q{&HYPER},
    Q{&HYPERWHATEVER},
    Q{&INDIRECT_NAME_LOOKUP},
    Q{&INITIALIZE-A-DISTRO-NOW},
    Q{&INITIALIZE-A-VM-NOW},
    Q{&MD-ARRAY-SLICE},
    Q{&MD-ARRAY-SLICE-ONE-POSITION},
    Q{&MD-HASH-SLICE-ONE-POSITION},
    Q{&METAOP_ASSIGN},
    Q{&METAOP_CROSS},
    Q{&METAOP_HYPER},
    Q{&METAOP_HYPER_CALL},
    Q{&METAOP_HYPER_POSTFIX},
    Q{&METAOP_HYPER_POSTFIX_ARGS},
    Q{&METAOP_HYPER_PREFIX},
    Q{&METAOP_NEGATE},
    Q{&METAOP_REDUCE_CHAIN},
    Q{&METAOP_REDUCE_LEFT},
    Q{&METAOP_REDUCE_LIST},
    Q{&METAOP_REDUCE_LISTINFIX},
    Q{&METAOP_REDUCE_RIGHT},
    Q{&METAOP_REDUCE_XOR},
    Q{&METAOP_REVERSE},
    Q{&METAOP_TEST_ASSIGN:<&&>},
    Q{&METAOP_TEST_ASSIGN:<//>},
    Q{&METAOP_TEST_ASSIGN:<and>},
    Q{&METAOP_TEST_ASSIGN:<andthen>},
    Q{&METAOP_TEST_ASSIGN:<notandthen>},
    Q{&METAOP_TEST_ASSIGN:<or>},
    Q{&METAOP_TEST_ASSIGN:<orelse>},
    Q{&METAOP_TEST_ASSIGN:<||>},
    Q{&METAOP_ZIP},
    Q{&ORDER},
    Q{&POSITIONS},
    Q{&QX},
    Q{&REACT},
    Q{&REACT-ONE-WHENEVER},
    Q{&REQUIRE_IMPORT},
    Q{&RETURN-LIST},
    Q{&RUN-MAIN},
    Q{&SEQUENCE},
    Q{&SLICE_HUH},
    Q{&SLICE_MORE_HASH},
    Q{&SLICE_MORE_LIST},
    Q{&SLICE_ONE_HASH},
    Q{&SLICE_ONE_LIST},
    Q{&SUPPLY},
    Q{&SUPPLY-ONE-EMIT},
    Q{&SUPPLY-ONE-WHENEVER},
    Q{&THROW},
    Q{&THROW-NIL},
    Q{&UNBASE},
    Q{&UNBASE_BRACKET},
    Q{&VAR},
    Q{&WHAT},
    Q{&WHENEVER},
    Q{&abs},
    Q{&acos},
    Q{&acosec},
    Q{&acosech},
    Q{&acosh},
    Q{&acotan},
    Q{&acotanh},
    Q{&all},
    Q{&any},
    Q{&append},
    Q{&asec},
    Q{&asech},
    Q{&asin},
    Q{&asinh},
    Q{&atan},
    Q{&atan2},
    Q{&atanh},
    Q{&atomic-add-fetch},
    Q{&atomic-assign},
    Q{&atomic-dec-fetch},
    Q{&atomic-fetch},
    Q{&atomic-fetch-add},
    Q{&atomic-fetch-dec},
    Q{&atomic-fetch-inc},
    Q{&atomic-fetch-sub},
    Q{&atomic-inc-fetch},
    Q{&atomic-sub-fetch},
    Q{&await},
    Q{&bag},
    Q{&cache},
    Q{&callframe},
    Q{&callsame},
    Q{&callwith},
    Q{&cas},
    Q{&categorize},
    Q{&ceiling},
    Q{&chars},
    Q{&chdir},
    Q{&chmod},
    Q{&chomp},
    Q{&chop},
    Q{&chr},
    Q{&chrs},
    Q{&circumfix:<:{ }>},
    Q{&circumfix:<[ ]>},
    Q{&circumfix:<{ }>},
    Q{&cis},
    Q{&classify},
    Q{&close},
    Q{&comb},
    Q{&combinations},
    Q{&copy},
    Q{&cos},
    Q{&cosec},
    Q{&cosech},
    Q{&cosh},
    Q{&cotan},
    Q{&cotanh},
    Q{&cross},
    Q{&dd},
    Q{&deepmap},
    Q{&defined},
    Q{&die},
    Q{&dir},
    Q{&done},
    Q{&duckmap},
    Q{&elems},
    Q{&emit},
    Q{&end},
    Q{&exit},
    Q{&exp},
    Q{&expmod},
    Q{&fail},
    Q{&fc},
    Q{&first},
    Q{&flat},
    Q{&flip},
    Q{&floor},
    Q{&from-json},
    Q{&full-barrier},
    Q{&get},
    Q{&getc},
    Q{&gethostname},
    Q{&gist},
    Q{&goto},
    Q{&grep},
    Q{&hash},
    Q{&index},
    Q{&indices},
    Q{&indir},
    Q{&infix:<!=>},
    Q{&infix:<!~~>},
    Q{&infix:<%%>},
    Q{&infix:<%>},
    Q{&infix:<&&>},
    Q{&infix:<&>},
    Q{&infix:<(&)>},
    Q{&infix:<(+)>},
    Q{&infix:<(-)>},
    Q{&infix:<(.)>},
    Q{&infix:<(^)>},
    Q{&infix:<(cont)>},
    Q{&infix:<(elem)>},
    Q{&infix:<(|)>},
    Q{&infix:<**>},
    Q{&infix:<*>},
    Q{&infix:<+&>},
    Q{&infix:<+>},
    Q{&infix:<+^>},
    Q{&infix:<+|>},
    Q{&infix:<,>},
    Q{&infix:<->},
    Q{&infix:<...>},
    Q{&infix:<...^>},
    Q{&infix:<..>},
    Q{&infix:<..^>},
    Q{&infix:<//>},
    Q{&infix:</>},
    Q{&infix:<=:=>},
    Q{&infix:<===>},
    Q{&infix:<==>},
    Q{&infix:<=>},
    Q{&infix:<=~=>},
    Q{&infix:<=~>},
    Q{&infix:<?&>},
    Q{&infix:<?^>},
    Q{&infix:<?|>},
    Q{&infix:<X>},
    Q{&infix:<Z>},
    Q{&infix:<^..>},
    Q{&infix:<^..^>},
    Q{&infix:<^>},
    Q{&infix:<^^>},
    Q{&infix:<after>},
    Q{&infix:<and>},
    Q{&infix:<andthen>},
    Q{&infix:<before>},
    Q{&infix:<but>},
    Q{&infix:<cmp>},
    Q{&infix:<coll>},
    Q{&infix:<div>},
    Q{&infix:<does>},
    Q{&infix:<eq>},
    Q{&infix:<eqv>},
    Q{&infix:<gcd>},
    Q{&infix:<ge>},
    Q{&infix:<gt>},
    Q{&infix:<lcm>},
    Q{&infix:<le>},
    Q{&infix:<leg>},
    Q{&infix:<lt>},
    Q{&infix:<max>},
    Q{&infix:<min>},
    Q{&infix:<minmax>},
    Q{&infix:<mod>},
    Q{&infix:<ne>},
    Q{&infix:<notandthen>},
    Q{&infix:<o>},
    Q{&infix:<or>},
    Q{&infix:<orelse>},
    Q{&infix:<unicmp>},
    Q{&infix:<x>},
    Q{&infix:<xor>},
    Q{&infix:<xx>},
    Q{&infix:<|>},
    Q{&infix:<||>},
    Q{&infix:<~&>},
    Q{&infix:<~>},
    Q{&infix:<~^>},
    Q{&infix:<~|>},
    Q{&infix:<~~>},
    Q{&infix:<×>},
    Q{&infix:<÷>},
    Q{&infix:<…>},
    Q{&infix:<…^>},
    Q{&infix:<∈>},
    Q{&infix:<∉>},
    Q{&infix:<∋>},
    Q{&infix:<∌>},
    Q{&infix:<−>},
    Q{&infix:<∖>},
    Q{&infix:<∘>},
    Q{&infix:<∩>},
    Q{&infix:<∪>},
    Q{&infix:<≅>},
    Q{&infix:<≠>},
    Q{&infix:<≤>},
    Q{&infix:<≥>},
    Q{&infix:<≼>},
    Q{&infix:<≽>},
    Q{&infix:<⊂>},
    Q{&infix:<⊃>},
    Q{&infix:<⊄>},
    Q{&infix:<⊅>},
    Q{&infix:<⊆>},
    Q{&infix:<⊇>},
    Q{&infix:<⊈>},
    Q{&infix:<⊉>},
    Q{&infix:<⊍>},
    Q{&infix:<⊎>},
    Q{&infix:<⊖>},
    Q{&infix:<⚛+=>},
    Q{&infix:<⚛-=>},
    Q{&infix:<⚛=>},
    Q{&infix:<⚛−=>},
    Q{&infix:«(<)»},
    Q{&infix:«(<+)»},
    Q{&infix:«(<=)»},
    Q{&infix:«(>)»},
    Q{&infix:«(>+)»},
    Q{&infix:«(>=)»},
    Q{&infix:«+<»},
    Q{&infix:«+>»},
    Q{&infix:«<=>»},
    Q{&infix:«<=»},
    Q{&infix:«<»},
    Q{&infix:«=>»},
    Q{&infix:«>=»},
    Q{&infix:«>»},
    Q{&infix:«~<»},
    Q{&infix:«~>»},
    Q{&is-prime},
    Q{&item},
    Q{&join},
    Q{&keys},
    Q{&kv},
    Q{&last},
    Q{&lastcall},
    Q{&lc},
    Q{&leave},
    Q{&lines},
    Q{&link},
    Q{&list},
    Q{&log},
    Q{&log10},
    Q{&log2},
    Q{&lsb},
    Q{&make},
    Q{&map},
    Q{&max},
    Q{&min},
    Q{&minmax},
    Q{&mix},
    Q{&mkdir},
    Q{&move},
    Q{&msb},
    Q{&next},
    Q{&nextcallee},
    Q{&nextsame},
    Q{&nextwith},
    Q{&nodemap},
    Q{&none},
    Q{&not},
    Q{&note},
    Q{&one},
    Q{&open},
    Q{&ord},
    Q{&ords},
    Q{&pair},
    Q{&pairs},
    Q{&parse-base},
    Q{&parse-names},
    Q{&permutations},
    Q{&pick},
    Q{&pop},
    Q{&postcircumfix:<[ ]>},
    Q{&postcircumfix:<[; ]>},
    Q{&postcircumfix:<{ }>},
    Q{&postcircumfix:<{; }>},
    Q{&postfix:<++>},
    Q{&postfix:<-->},
    Q{&postfix:<i>},
    Q{&postfix:<ⁿ>},
    Q{&postfix:<⚛++>},
    Q{&postfix:<⚛-->},
    Q{&prefix:<!>},
    Q{&prefix:<++>},
    Q{&prefix:<++⚛>},
    Q{&prefix:<+>},
    Q{&prefix:<+^>},
    Q{&prefix:<-->},
    Q{&prefix:<--⚛>},
    Q{&prefix:<->},
    Q{&prefix:<?>},
    Q{&prefix:<?^>},
    Q{&prefix:<^>},
    Q{&prefix:<let>},
    Q{&prefix:<not>},
    Q{&prefix:<so>},
    Q{&prefix:<temp>},
    Q{&prefix:<|>},
    Q{&prefix:<~>},
    Q{&prefix:<~^>},
    Q{&prefix:<−>},
    Q{&prefix:<⚛>},
    Q{&prepend},
    Q{&print},
    Q{&printf},
    Q{&proceed},
    Q{&produce},
    Q{&prompt},
    Q{&push},
    Q{&put},
    Q{&rand},
    Q{&redo},
    Q{&reduce},
    Q{&rename},
    Q{&repeated},
    Q{&return},
    Q{&return-rw},
    Q{&reverse},
    Q{&rindex},
    Q{&rmdir},
    Q{&roll},
    Q{&roots},
    Q{&rotate},
    Q{&round},
    Q{&roundrobin},
    Q{&run},
    Q{&samecase},
    Q{&samemark},
    Q{&samewith},
    Q{&say},
    Q{&sec},
    Q{&sech},
    Q{&set},
    Q{&shell},
    Q{&shift},
    Q{&sign},
    Q{&signal},
    Q{&sin},
    Q{&sinh},
    Q{&sleep},
    Q{&sleep-timer},
    Q{&sleep-until},
    Q{&slip},
    Q{&slurp},
    Q{&so},
    Q{&sort},
    Q{&splice},
    Q{&split},
    Q{&sprintf},
    Q{&spurt},
    Q{&sqrt},
    Q{&squish},
    Q{&srand},
    Q{&subbuf-rw},
    Q{&substr},
    Q{&substr-rw},
    Q{&succeed},
    Q{&sum},
    Q{&symlink},
    Q{&take},
    Q{&take-rw},
    Q{&tan},
    Q{&tanh},
    Q{&tc},
    Q{&tclc},
    Q{&term:<now>},
    Q{&term:<time>},
    Q{&to-json},
    Q{&trait_mod:<does>},
    Q{&trait_mod:<handles>},
    Q{&trait_mod:<hides>},
    Q{&trait_mod:<is>},
    Q{&trait_mod:<of>},
    Q{&trait_mod:<returns>},
    Q{&trait_mod:<trusts>},
    Q{&trait_mod:<will>},
    Q{&trim},
    Q{&trim-leading},
    Q{&trim-trailing},
    Q{&truncate},
    Q{&uc},
    Q{&undefine},
    Q{&unimatch},
    Q{&uniname},
    Q{&uninames},
    Q{&uniparse},
    Q{&uniprop},
    Q{&uniprop-bool},
    Q{&uniprop-int},
    Q{&uniprop-str},
    Q{&uniprops},
    Q{&unique},
    Q{&unival},
    Q{&univals},
    Q{&unlink},
    Q{&unpolar},
    Q{&unshift},
    Q{&val},
    Q{&values},
    Q{&warn},
    Q{&wordcase},
    Q{&words},
    Q{&zip},
    Q{AST},
    Q{Any},
    Q{Array},
    Q{Associative},
    Q{Attribute},
    Q{Awaitable},
    Q{Awaiter},
    Q{Backtrace},
    Q{Bag},
    Q{BagHash},
    Q{Baggy},
    Q{BigEndian},
    Q{Blob},
    Q{Block},
    Q{Bool},
    Q{Broken},
    Q{Buf},
    Q{CORE-SETTING-REV},
    Q{CX},
    Q{CallFrame},
    Q{Callable},
    Q{Cancellation},
    Q{Capture},
    Q{Channel},
    Q{Code},
    Q{Collation},
    Q{CompUnit},
    Q{Compiler},
    Q{Complex},
    Q{ComplexStr},
    Q{ContainerDescriptor},
    Q{Cool},
    Q{CurrentThreadScheduler},
    Q{Cursor},
    Q{Date},
    Q{DateTime},
    Q{Dateish},
    Q{Deprecation},
    Q{Distribution},
    Q{Distro},
    Q{Duration},
    Q{EXPORTHOW},
    Q{Empty},
    Q{Encoding},
    Q{Endian},
    Q{Enumeration},
    Q{Exception},
    Q{Exceptions},
    Q{Failure},
    Q{False},
    Q{FatRat},
    Q{FileChangeEvent},
    Q{FileChanged},
    Q{FileRenamed},
    Q{ForeignCode},
    Q{Grammar},
    Q{HardRoutine},
    Q{Hash},
    Q{Hyper},
    Q{HyperConfiguration},
    Q{HyperSeq},
    Q{HyperWhatever},
    Q{IO},
    Q{Inf},
    Q{Instant},
    Q{Int},
    Q{IntAttrRef},
    Q{IntLexRef},
    Q{IntPosRef},
    Q{IntStr},
    Q{Iterable},
    Q{IterationBuffer},
    Q{IterationEnd},
    Q{Iterator},
    Q{JSONException},
    Q{Junction},
    Q{Kept},
    Q{Kernel},
    Q{Label},
    Q{Less},
    Q{List},
    Q{LittleEndian},
    Q{Lock},
    Q{Macro},
    Q{Map},
    Q{Match},
    Q{Metamodel},
    Q{Method},
    Q{MethodDispatcher},
    Q{Mix},
    Q{MixHash},
    Q{Mixy},
    Q{More},
    Q{Mu},
    Q{MultiDispatcher},
    Q{NFC},
    Q{NFD},
    Q{NFKC},
    Q{NFKD},
    Q{NQPMatchRole},
    Q{NQPdidMATCH},
    Q{NaN},
    Q{NativeEndian},
    Q{Nil},
    Q{Num},
    Q{NumAttrRef},
    Q{NumLexRef},
    Q{NumPosRef},
    Q{NumStr},
    Q{Numeric},
    Q{NumericEnumeration},
    Q{NumericStringyEnumeration},
    Q{ObjAt},
    Q{Order},
    Q{PF_INET},
    Q{PF_INET6},
    Q{PF_LOCAL},
    Q{PF_MAX},
    Q{PF_UNIX},
    Q{PROCESS},
    Q{PROTO_TCP},
    Q{PROTO_UDP},
    Q{Pair},
    Q{Parameter},
    Q{Perl},
    Q{PhasersList},
    Q{Planned},
    Q{Pod},
    Q{Positional},
    Q{PositionalBindFailover},
    Q{PredictiveIterator},
    Q{Proc},
    Q{Promise},
    Q{PromiseStatus},
    Q{ProtocolFamily},
    Q{ProtocolType},
    Q{Proxy},
    Q{PseudoStash},
    Q{QuantHash},
    Q{REPL},
    Q{RaceSeq},
    Q{Rakudo},
    Q{Range},
    Q{Rat},
    Q{RatStr},
    Q{Rational},
    Q{Real},
    Q{Regex},
    Q{Routine},
    Q{SIGABRT},
    Q{SIGALRM},
    Q{SIGBREAK},
    Q{SIGBUS},
    Q{SIGCHLD},
    Q{SIGCONT},
    Q{SIGEMT},
    Q{SIGFPE},
    Q{SIGHUP},
    Q{SIGILL},
    Q{SIGINFO},
    Q{SIGINT},
    Q{SIGIO},
    Q{SIGKILL},
    Q{SIGPIPE},
    Q{SIGPROF},
    Q{SIGPWR},
    Q{SIGQUIT},
    Q{SIGSEGV},
    Q{SIGSTKFLT},
    Q{SIGSTOP},
    Q{SIGSYS},
    Q{SIGTERM},
    Q{SIGTHR},
    Q{SIGTRAP},
    Q{SIGTSTP},
    Q{SIGTTIN},
    Q{SIGTTOU},
    Q{SIGURG},
    Q{SIGUSR1},
    Q{SIGUSR2},
    Q{SIGVTALRM},
    Q{SIGWINCH},
    Q{SIGXCPU},
    Q{SIGXFSZ},
    Q{SOCK_DGRAM},
    Q{SOCK_MAX},
    Q{SOCK_PACKET},
    Q{SOCK_RAW},
    Q{SOCK_RDM},
    Q{SOCK_SEQPACKET},
    Q{SOCK_STREAM},
    Q{Same},
    Q{Scalar},
    Q{Scheduler},
    Q{SeekFromBeginning},
    Q{SeekFromCurrent},
    Q{SeekFromEnd},
    Q{SeekType},
    Q{Semaphore},
    Q{Seq},
    Q{Sequence},
    Q{Set},
    Q{SetHash},
    Q{Setty},
    Q{Signal},
    Q{Signature},
    Q{Slang},
    Q{Slip},
    Q{SlippyIterator},
    Q{SocketType},
    Q{SoftRoutine},
    Q{Stash},
    Q{Str},
    Q{StrAttrRef},
    Q{StrDistance},
    Q{StrLexRef},
    Q{StrPosRef},
    Q{Stringy},
    Q{StringyEnumeration},
    Q{Sub},
    Q{Submethod},
    Q{Supplier},
    Q{Supply},
    Q{Systemic},
    Q{Tap},
    Q{Tappable},
    Q{Thread},
    Q{ThreadPoolScheduler},
    Q{True},
    Q{UINT64_UPPER},
    Q{UInt},
    Q{Uni},
    Q{VM},
    Q{ValueObjAt},
    Q{Variable},
    Q{Version},
    Q{WalkList},
    Q{Whatever},
    Q{WhateverCode},
    Q{WrapDispatcher},
    Q{X},
    Q{array},
    Q{atomicint},
    Q{blob16},
    Q{blob32},
    Q{blob64},
    Q{blob8},
    Q{buf16},
    Q{buf32},
    Q{buf64},
    Q{buf8},
    Q{byte},
    Q{e},
    Q{i},
    Q{int},
    Q{int16},
    Q{int32},
    Q{int64},
    Q{int8},
    Q{num},
    Q{num32},
    Q{num64},
    Q{pi},
    Q{str},
    Q{tau},
    Q{uint},
    Q{uint16},
    Q{uint32},
    Q{uint64},
    Q{uint8},
    Q{utf16},
    Q{utf32},
    Q{utf8},
    Q{π},
    Q{τ},
    Q{𝑒},
).map: { $_ => 1 };

my @unknown;
my $known-count;
my @missing;
for %allowed.keys {
    if SETTING::{$_}:exists  {
        $known-count++
    }
    else {
        @missing.push: $_;
    }
}
is %allowed.elems, $known-count, "all allowed symbols found";
diag "Missing symbols: { @missing.sort }" if @missing;
@unknown.push($_) unless %allowed{$_}:exists for SETTING::.keys;
diag "Found {+@unknown} unexpected entries: { @unknown.sort }" if @unknown;
ok @unknown == 0, "No unexpected entries in SETTING::";