158 lines
3.7 KiB
Perl
Executable File
158 lines
3.7 KiB
Perl
Executable File
#!./perl
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BEGIN {
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chdir 't' if -d 't';
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@INC = '../lib' if -d '../lib';
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}
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BEGIN {$^W |= 1} # Insist upon warnings
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use vars qw{ @warnings };
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BEGIN { # ...and save 'em for later
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$SIG{'__WARN__'} = sub { push @warnings, @_ }
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}
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END { print @warnings }
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######################### We start with some black magic to print on failure.
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BEGIN { $| = 1; print "1..46\n"; }
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END {print "not ok 1\n" unless $loaded;}
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use constant;
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$loaded = 1;
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#print "# Version: $constant::VERSION\n";
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print "ok 1\n";
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######################### End of black magic.
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use strict;
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sub test ($$;$) {
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my($num, $bool, $diag) = @_;
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if ($bool) {
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print "ok $num\n";
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return;
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}
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print "not ok $num\n";
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return unless defined $diag;
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$diag =~ s/\Z\n?/\n/; # unchomp
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print map "# $num : $_", split m/^/m, $diag;
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}
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use constant PI => 4 * atan2 1, 1;
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test 2, substr(PI, 0, 7) eq '3.14159';
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test 3, defined PI;
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sub deg2rad { PI * $_[0] / 180 }
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my $ninety = deg2rad 90;
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test 4, $ninety > 1.5707;
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test 5, $ninety < 1.5708;
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use constant UNDEF1 => undef; # the right way
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use constant UNDEF2 => ; # the weird way
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use constant 'UNDEF3' ; # the 'short' way
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use constant EMPTY => ( ) ; # the right way for lists
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test 6, not defined UNDEF1;
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test 7, not defined UNDEF2;
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test 8, not defined UNDEF3;
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my @undef = UNDEF1;
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test 9, @undef == 1;
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test 10, not defined $undef[0];
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@undef = UNDEF2;
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test 11, @undef == 0;
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@undef = UNDEF3;
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test 12, @undef == 0;
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@undef = EMPTY;
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test 13, @undef == 0;
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use constant COUNTDOWN => scalar reverse 1, 2, 3, 4, 5;
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use constant COUNTLIST => reverse 1, 2, 3, 4, 5;
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use constant COUNTLAST => (COUNTLIST)[-1];
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test 14, COUNTDOWN eq '54321';
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my @cl = COUNTLIST;
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test 15, @cl == 5;
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test 16, COUNTDOWN eq join '', @cl;
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test 17, COUNTLAST == 1;
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test 18, (COUNTLIST)[1] == 4;
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use constant ABC => 'ABC';
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test 19, "abc${\( ABC )}abc" eq "abcABCabc";
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use constant DEF => 'D', 'E', chr ord 'F';
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test 20, "d e f @{[ DEF ]} d e f" eq "d e f D E F d e f";
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use constant SINGLE => "'";
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use constant DOUBLE => '"';
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use constant BACK => '\\';
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my $tt = BACK . SINGLE . DOUBLE ;
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test 21, $tt eq q(\\'");
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use constant MESS => q('"'\\"'"\\);
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test 22, MESS eq q('"'\\"'"\\);
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test 23, length(MESS) == 8;
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use constant TRAILING => '12 cats';
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{
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my $save_warn;
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local $^W;
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BEGIN { $save_warn = $^W; $^W = 0 }
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test 24, TRAILING == 12;
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BEGIN { $^W = $save_warn }
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}
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test 25, TRAILING eq '12 cats';
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use constant LEADING => " \t1234";
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test 26, LEADING == 1234;
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test 27, LEADING eq " \t1234";
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use constant ZERO1 => 0;
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use constant ZERO2 => 0.0;
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use constant ZERO3 => '0.0';
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test 28, ZERO1 eq '0';
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test 29, ZERO2 eq '0';
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test 30, ZERO3 eq '0.0';
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{
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package Other;
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use constant PI => 3.141;
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}
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test 31, (PI > 3.1415 and PI < 3.1416);
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test 32, Other::PI == 3.141;
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use constant E2BIG => $! = 7;
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test 33, E2BIG == 7;
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# This is something like "Arg list too long", but the actual message
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# text may vary, so we can't test much better than this.
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test 34, length(E2BIG) > 6;
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test 35, index(E2BIG, " ") > 0;
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test 36, @warnings == 0, join "\n", "unexpected warning", @warnings;
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@warnings = (); # just in case
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undef &PI;
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test 37, @warnings &&
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($warnings[0] =~ /Constant sub.* undefined/),
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shift @warnings;
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test 38, @warnings == 0, "unexpected warning";
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test 39, $^W & 1, "Who disabled the warnings?";
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use constant CSCALAR => \"ok 40\n";
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use constant CHASH => { foo => "ok 41\n" };
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use constant CARRAY => [ undef, "ok 42\n" ];
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use constant CPHASH => [ { foo => 1 }, "ok 43\n" ];
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use constant CCODE => sub { "ok $_[0]\n" };
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print ${+CSCALAR};
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print CHASH->{foo};
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print CARRAY->[1];
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print CPHASH->{foo};
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eval q{ CPHASH->{bar} };
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test 44, scalar($@ =~ /^No such array/);
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print CCODE->(45);
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eval q{ CCODE->{foo} };
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test 46, scalar($@ =~ /^Constant is not a HASH/);
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