xref: /openbsd/gnu/usr.bin/perl/t/cmd/subval.t (revision 4cfece93) 
1#!./perl
2
3sub foo1 {
4    'true1';
5    if ($_[0]) { 'true2'; }
6}
7
8sub foo2 {
9    'true1';
10    if ($_[0]) { return 'true2'; } else { return 'true3'; }
11    'true0';
12}
13
14sub foo3 {
15    'true1';
16    unless ($_[0]) { 'true2'; }
17}
18
19sub foo4 {
20    'true1';
21    unless ($_[0]) { 'true2'; } else { 'true3'; }
22}
23
24sub foo5 {
25    'true1';
26    'true2' if $_[0];
27}
28
29sub foo6 {
30    'true1';
31    'true2' unless $_[0];
32}
33
34print "1..36\n";
35
36if (&foo1(0) eq '0') {print "ok 1\n";} else {print "not ok 1 $foo\n";}
37if (&foo1(1) eq 'true2') {print "ok 2\n";} else {print "not ok 2\n";}
38if (&foo2(0) eq 'true3') {print "ok 3\n";} else {print "not ok 3\n";}
39if (&foo2(1) eq 'true2') {print "ok 4\n";} else {print "not ok 4\n";}
40
41if (&foo3(0) eq 'true2') {print "ok 5\n";} else {print "not ok 5\n";}
42if (&foo3(1) eq '1') {print "ok 6\n";} else {print "not ok 6\n";}
43if (&foo4(0) eq 'true2') {print "ok 7\n";} else {print "not ok 7\n";}
44if (&foo4(1) eq 'true3') {print "ok 8\n";} else {print "not ok 8\n";}
45
46if (&foo5(0) eq '0') {print "ok 9\n";} else {print "not ok 9\n";}
47if (&foo5(1) eq 'true2') {print "ok 10\n";} else {print "not ok 10\n";}
48if (&foo6(0) eq 'true2') {print "ok 11\n";} else {print "not ok 11\n";}
49if (&foo6(1) eq '1') {print "ok 12\n";} else {print "not ok 12 $x\n";}
50
51# Now test to see that recursion works using a Fibonacci number generator
52
53sub fib {
54    my($arg) = @_;
55    my($foo);
56    $level++;
57    if ($arg <= 2) {
58	$foo = 1;
59    }
60    else {
61	$foo = &fib($arg-1) + &fib($arg-2);
62    }
63    $level--;
64    $foo;
65}
66
67@good = (0,1,1,2,3,5,8,13,21,34,55,89);
68
69for ($i = 1; $i <= 10; $i++) {
70    $foo = $i + 12;
71    if (&fib($i) == $good[$i]) {
72	print "ok $foo\n";
73    }
74    else {
75	print "not ok $foo\n";
76    }
77}
78
79sub ary1 {
80    (1,2,3);
81}
82
83print &ary1 eq 3 ? "ok 23\n" : "not ok 23\n";
84
85print join(':',&ary1) eq '1:2:3' ? "ok 24\n" : "not ok 24\n";
86
87sub ary2 {
88    do {
89	return (1,2,3);
90	(3,2,1);
91    };
92    0;
93}
94
95print &ary2 eq 3 ? "ok 25\n" : "not ok 25\n";
96
97$x = join(':',&ary2);
98print $x eq '1:2:3' ? "ok 26\n" : "not ok 26 $x\n";
99
100sub somesub {
101    local($num,$P,$F,$L) = @_;
102    ($p,$f,$l) = caller;
103    print "$p:$f:$l" eq "$P:$F:$L" ? "ok $num\n" : "not ok $num $p:$f:$l ne $P:$F:$L\n";
104}
105
106&somesub(27, 'main', __FILE__, __LINE__);
107
108package foo;
109&main'somesub(28, 'foo', __FILE__, __LINE__);
110
111package main;
112$i = 28;
113open(FOO,">Cmd_subval.tmp");
114print FOO "blah blah\n";
115close FOO or die "Can't close Cmd_subval.tmp: $!";
116
117&file_main(*F);
118close F or die "Can't close: $!";
119&info_main;
120
121&file_package(*F);
122close F or die "Can't close: $!";
123&info_package;
124
125unlink 'Cmd_subval.tmp';
126
127sub file_main {
128        local(*F) = @_;
129
130        open(F, 'Cmd_subval.tmp') || die "can't open: $!\n";
131	$i++;
132        eof F ? print "not ok $i\n" : print "ok $i\n";
133}
134
135sub info_main {
136        local(*F);
137
138        open(F, 'Cmd_subval.tmp') || die "test: can't open: $!\n";
139	$i++;
140        eof F ? print "not ok $i\n" : print "ok $i\n";
141        &iseof(*F);
142	close F or die "Can't close: $!";
143}
144
145sub iseof {
146        local(*UNIQ) = @_;
147
148	$i++;
149        eof UNIQ ? print "(not ok $i)\n" : print "ok $i\n";
150}
151
152{package foo;
153
154 sub main'file_package {
155        local(*F) = @_;
156
157        open(F, 'Cmd_subval.tmp') || die "can't open: $!\n";
158	$main'i++;
159        eof F ? print "not ok $main'i\n" : print "ok $main'i\n";
160 }
161
162 sub main'info_package {
163        local(*F);
164
165        open(F, 'Cmd_subval.tmp') || die "can't open: $!\n";
166	$main'i++;
167        eof F ? print "not ok $main'i\n" : print "ok $main'i\n";
168        &iseof(*F);
169 }
170
171 sub iseof {
172        local(*UNIQ) = @_;
173
174	$main'i++;
175        eof UNIQ ? print "not ok $main'i\n" : print "ok $main'i\n";
176 }
177}
178
179sub autov { $_[0] = 23 };
180
181my $href = {};
182print keys %$href ? 'not ' : '', "ok 35\n";
183autov($href->{b});
184print join(':', %$href) eq 'b:23' ? '' : 'not ', "ok 36\n";
185