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1 | #!./perl -Tw |
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2 | |
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3 | # Uncomment this for testing, but don't leave it in for "production", as |
4 | # we've not yet verified that use works. |
5 | # use strict; |
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6 | |
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7 | $|++; |
8 | |
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9 | print "1..36\n"; |
10 | my $test = 0; |
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11 | |
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12 | sub failed { |
13 | my ($got, $expected, $name) = @_; |
14 | |
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15 | if ($::TODO) { |
16 | print "not ok $test - $name # TODO: $::TODO\n"; |
17 | } |
18 | else { |
19 | print "not ok $test - $name\n"; |
20 | } |
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21 | my @caller = caller(1); |
22 | print "# Failed test at $caller[1] line $caller[2]\n"; |
23 | if (defined $got) { |
24 | print "# Got '$got'\n"; |
25 | } else { |
26 | print "# Got undef\n"; |
27 | } |
28 | print "# Expected $expected\n"; |
29 | return; |
30 | } |
31 | |
32 | sub like { |
33 | my ($got, $pattern, $name) = @_; |
34 | $test = $test + 1; |
35 | if (defined $got && $got =~ $pattern) { |
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36 | if ($::TODO) { |
37 | print "ok $test - $name # TODO: $::TODO\n"; |
38 | } |
39 | else { |
40 | print "ok $test - $name\n"; |
41 | } |
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42 | # Principle of least surprise - maintain the expected interface, even |
43 | # though we aren't using it here (yet). |
44 | return 1; |
45 | } |
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46 | failed($got, $pattern, $name); |
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47 | } |
48 | |
49 | sub is { |
50 | my ($got, $expect, $name) = @_; |
51 | $test = $test + 1; |
52 | if (defined $got && $got eq $expect) { |
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53 | if ($::TODO) { |
54 | print "ok $test - $name # TODO: $::TODO\n"; |
55 | } |
56 | else { |
57 | print "ok $test - $name\n"; |
58 | } |
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59 | return 1; |
60 | } |
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61 | failed($got, "'$expect'", $name); |
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62 | } |
63 | |
64 | sub isnt { |
65 | my ($got, $expect, $name) = @_; |
66 | $test = $test + 1; |
67 | if (defined $got && $got ne $expect) { |
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68 | if ($::TODO) { |
69 | print "ok $test - $name # TODO: $::TODO\n"; |
70 | } |
71 | else { |
72 | print "ok $test - $name\n"; |
73 | } |
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74 | return 1; |
75 | } |
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76 | failed($got, "not '$expect'", $name); |
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77 | } |
78 | |
79 | sub can_ok { |
80 | my ($class, $method) = @_; |
81 | $test = $test + 1; |
82 | if (eval { $class->can($method) }) { |
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83 | if ($::TODO) { |
84 | print "ok $test - $class->can('$method') # TODO: $::TODO\n"; |
85 | } |
86 | else { |
87 | print "ok $test - $class->can('$method')\n"; |
88 | } |
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89 | return 1; |
90 | } |
91 | my @caller = caller; |
92 | print "# Failed test at $caller[1] line $caller[2]\n"; |
93 | print "# $class cannot $method\n"; |
94 | return; |
95 | } |
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96 | |
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97 | =pod |
98 | |
99 | Even if you have a C<sub q{}>, calling C<q()> will be parsed as the |
100 | C<q()> operator. Calling C<&q()> or C<main::q()> gets you the function. |
101 | This test verifies this behavior for nine different operators. |
102 | |
103 | =cut |
104 | |
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105 | sub m { return "m-".shift } |
106 | sub q { return "q-".shift } |
107 | sub qq { return "qq-".shift } |
108 | sub qr { return "qr-".shift } |
109 | sub qw { return "qw-".shift } |
110 | sub qx { return "qx-".shift } |
111 | sub s { return "s-".shift } |
112 | sub tr { return "tr-".shift } |
113 | sub y { return "y-".shift } |
114 | |
115 | # m operator |
116 | can_ok( 'main', "m" ); |
117 | SILENCE_WARNING: { # Complains because $_ is undef |
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118 | local $^W; |
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119 | isnt( m('unqualified'), "m-unqualified", "m('unqualified') is oper" ); |
120 | } |
121 | is( main::m('main'), "m-main", "main::m() is func" ); |
122 | is( &m('amper'), "m-amper", "&m() is func" ); |
123 | |
124 | # q operator |
125 | can_ok( 'main', "q" ); |
126 | isnt( q('unqualified'), "q-unqualified", "q('unqualified') is oper" ); |
127 | is( main::q('main'), "q-main", "main::q() is func" ); |
128 | is( &q('amper'), "q-amper", "&q() is func" ); |
129 | |
130 | # qq operator |
131 | can_ok( 'main', "qq" ); |
132 | isnt( qq('unqualified'), "qq-unqualified", "qq('unqualified') is oper" ); |
133 | is( main::qq('main'), "qq-main", "main::qq() is func" ); |
134 | is( &qq('amper'), "qq-amper", "&qq() is func" ); |
135 | |
136 | # qr operator |
137 | can_ok( 'main', "qr" ); |
138 | isnt( qr('unqualified'), "qr-unqualified", "qr('unqualified') is oper" ); |
139 | is( main::qr('main'), "qr-main", "main::qr() is func" ); |
140 | is( &qr('amper'), "qr-amper", "&qr() is func" ); |
141 | |
142 | # qw operator |
143 | can_ok( 'main', "qw" ); |
144 | isnt( qw('unqualified'), "qw-unqualified", "qw('unqualified') is oper" ); |
145 | is( main::qw('main'), "qw-main", "main::qw() is func" ); |
146 | is( &qw('amper'), "qw-amper", "&qw() is func" ); |
147 | |
148 | # qx operator |
149 | can_ok( 'main', "qx" ); |
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150 | eval "qx('unqualified'". |
151 | ($^O eq 'MSWin32' ? " 2>&1)" : ")"); |
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152 | TODO: { |
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153 | local $::TODO = $^O eq 'MSWin32' ? "Tainting of PATH not working of Windows" : $::TODO; |
154 | like( $@, qr/^Insecure/, "qx('unqualified') doesn't work" ); |
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155 | } |
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156 | is( main::qx('main'), "qx-main", "main::qx() is func" ); |
157 | is( &qx('amper'), "qx-amper", "&qx() is func" ); |
158 | |
159 | # s operator |
160 | can_ok( 'main', "s" ); |
161 | eval "s('unqualified')"; |
162 | like( $@, qr/^Substitution replacement not terminated/, "s('unqualified') doesn't work" ); |
163 | is( main::s('main'), "s-main", "main::s() is func" ); |
164 | is( &s('amper'), "s-amper", "&s() is func" ); |
165 | |
166 | # tr operator |
167 | can_ok( 'main', "tr" ); |
168 | eval "tr('unqualified')"; |
169 | like( $@, qr/^Transliteration replacement not terminated/, "tr('unqualified') doesn't work" ); |
170 | is( main::tr('main'), "tr-main", "main::tr() is func" ); |
171 | is( &tr('amper'), "tr-amper", "&tr() is func" ); |
172 | |
173 | # y operator |
174 | can_ok( 'main', "y" ); |
175 | eval "y('unqualified')"; |
176 | like( $@, qr/^Transliteration replacement not terminated/, "y('unqualified') doesn't work" ); |
177 | is( main::y('main'), "y-main", "main::y() is func" ); |
178 | is( &y('amper'), "y-amper", "&y() is func" ); |
179 | |
180 | =pod |
181 | |
182 | from irc://irc.perl.org/p5p 2004/08/12 |
183 | |
184 | <kane-xs> bug or feature? |
185 | <purl> You decide!!!! |
186 | <kane-xs> [kane@coke ~]$ perlc -le'sub y{1};y(1)' |
187 | <kane-xs> Transliteration replacement not terminated at -e line 1. |
188 | <Nicholas> bug I think |
189 | <kane-xs> i'll perlbug |
190 | <rgs> feature |
191 | <kane-xs> smiles at rgs |
192 | <kane-xs> done |
193 | <rgs> will be closed at not a bug, |
194 | <rgs> like the previous reports of this one |
195 | <Nicholas> feature being first class and second class keywords? |
196 | <rgs> you have similar ones with q, qq, qr, qx, tr, s and m |
197 | <rgs> one could say 1st class keywords, yes |
198 | <rgs> and I forgot qw |
199 | <kane-xs> hmm silly... |
200 | <Nicholas> it's acutally operators, isn't it? |
201 | <Nicholas> as in you can't call a subroutine with the same name as an |
202 | operator unless you have the & ? |
203 | <kane-xs> or fqpn (fully qualified package name) |
204 | <kane-xs> main::y() works just fine |
205 | <kane-xs> as does &y; but not y() |
206 | <Andy> If that's a feature, then let's write a test that it continues |
207 | to work like that. |
208 | |
209 | =cut |