xref: /openbsd/gnu/usr.bin/perl/t/op/each.t (revision 898184e3) 
1#!./perl
2
3BEGIN {
4    chdir 't' if -d 't';
5    @INC = '../lib';
6    require './test.pl';
7}
8
9plan tests => 54;
10
11$h{'abc'} = 'ABC';
12$h{'def'} = 'DEF';
13$h{'jkl','mno'} = "JKL\034MNO";
14$h{'a',2,3,4,5} = join("\034",'A',2,3,4,5);
15$h{'a'} = 'A';
16$h{'b'} = 'B';
17$h{'c'} = 'C';
18$h{'d'} = 'D';
19$h{'e'} = 'E';
20$h{'f'} = 'F';
21$h{'g'} = 'G';
22$h{'h'} = 'H';
23$h{'i'} = 'I';
24$h{'j'} = 'J';
25$h{'k'} = 'K';
26$h{'l'} = 'L';
27$h{'m'} = 'M';
28$h{'n'} = 'N';
29$h{'o'} = 'O';
30$h{'p'} = 'P';
31$h{'q'} = 'Q';
32$h{'r'} = 'R';
33$h{'s'} = 'S';
34$h{'t'} = 'T';
35$h{'u'} = 'U';
36$h{'v'} = 'V';
37$h{'w'} = 'W';
38$h{'x'} = 'X';
39$h{'y'} = 'Y';
40$h{'z'} = 'Z';
41
42@keys = keys %h;
43@values = values %h;
44
45is ($#keys, 29, "keys");
46is ($#values, 29, "values");
47
48$i = 0;		# stop -w complaints
49
50while (($key,$value) = each(%h)) {
51    if ($key eq $keys[$i] && $value eq $values[$i]
52        && (('a' lt 'A' && $key lt $value) || $key gt $value)) {
53	$key =~ y/a-z/A-Z/;
54	$i++ if $key eq $value;
55    }
56}
57
58is ($i, 30, "each count");
59
60@keys = ('blurfl', keys(%h), 'dyick');
61is ($#keys, 31, "added a key");
62
63$size = ((split('/',scalar %h))[1]);
64keys %h = $size * 5;
65$newsize = ((split('/',scalar %h))[1]);
66is ($newsize, $size * 8, "resize");
67keys %h = 1;
68$size = ((split('/',scalar %h))[1]);
69is ($size, $newsize, "same size");
70%h = (1,1);
71$size = ((split('/',scalar %h))[1]);
72is ($size, $newsize, "still same size");
73undef %h;
74%h = (1,1);
75$size = ((split('/',scalar %h))[1]);
76is ($size, 8, "size 8");
77
78# test scalar each
79%hash = 1..20;
80$total = 0;
81$total += $key while $key = each %hash;
82is ($total, 100, "test scalar each");
83
84for (1..3) { @foo = each %hash }
85keys %hash;
86$total = 0;
87$total += $key while $key = each %hash;
88is ($total, 100, "test scalar keys resets iterator");
89
90for (1..3) { @foo = each %hash }
91$total = 0;
92$total += $key while $key = each %hash;
93isnt ($total, 100, "test iterator of each is being maintained");
94
95for (1..3) { @foo = each %hash }
96values %hash;
97$total = 0;
98$total += $key while $key = each %hash;
99is ($total, 100, "test values keys resets iterator");
100
101$size = (split('/', scalar %hash))[1];
102keys(%hash) = $size / 2;
103is ($size, (split('/', scalar %hash))[1]);
104keys(%hash) = $size + 100;
105isnt ($size, (split('/', scalar %hash))[1]);
106
107is (keys(%hash), 10, "keys (%hash)");
108
109{
110    no warnings 'deprecated';
111    is (keys(hash), 10, "keys (hash)");
112}
113
114$i = 0;
115%h = (a => A, b => B, c=> C, d => D, abc => ABC);
116{
117    no warnings 'deprecated';
118    @keys = keys(h);
119    @values = values(h);
120    while (($key, $value) = each(h)) {
121	if ($key eq $keys[$i] && $value eq $values[$i] && $key eq lc($value)) {
122		$i++;
123	}
124    }
125}
126is ($i, 5);
127
128@tests = (&next_test, &next_test, &next_test);
129{
130    package Obj;
131    sub DESTROY { print "ok $::tests[1] # DESTROY called\n"; }
132    {
133	my $h = { A => bless [], __PACKAGE__ };
134        while (my($k,$v) = each %$h) {
135	    print "ok $::tests[0]\n" if $k eq 'A' and ref($v) eq 'Obj';
136	}
137    }
138    print "ok $::tests[2]\n";
139}
140
141# Check for Unicode hash keys.
142%u = ("\x{12}", "f", "\x{123}", "fo", "\x{1234}",  "foo");
143$u{"\x{12345}"}  = "bar";
144@u{"\x{10FFFD}"} = "zap";
145
146my %u2;
147foreach (keys %u) {
148    is (length(), 1, "Check length of " . _qq $_);
149    $u2{$_} = $u{$_};
150}
151ok (eq_hash(\%u, \%u2), "copied unicode hash keys correctly?");
152
153$a = "\xe3\x81\x82"; $A = "\x{3042}";
154%b = ( $a => "non-utf8");
155%u = ( $A => "utf8");
156
157is (exists $b{$A}, '', "utf8 key in bytes hash");
158is (exists $u{$a}, '', "bytes key in utf8 hash");
159print "# $b{$_}\n" for keys %b; # Used to core dump before change #8056.
160pass ("if we got here change 8056 worked");
161print "# $u{$_}\n" for keys %u; # Used to core dump before change #8056.
162pass ("change 8056 is thanks to Inaba Hiroto");
163
164# on EBCDIC chars are mapped differently so pick something that needs encoding
165# there too.
166$d = pack("U*", 0xe3, 0x81, 0xAF);
167{ use bytes; $ol = bytes::length($d) }
168cmp_ok ($ol, '>', 3, "check encoding on EBCDIC");
169%u = ($d => "downgrade");
170for (keys %u) {
171    is (length, 3, "check length");
172    is ($_, pack("U*", 0xe3, 0x81, 0xAF), "check value");
173}
174{
175    { use bytes; is (bytes::length($d), $ol) }
176}
177
178{
179    my %u;
180    my $u0 = pack("U0U", 0x00FF);
181    my $b0 = "\xC3\xBF";          # 0xCB 0xBF is U+00FF in UTF-8
182    my $u1 = pack("U0U", 0x0100);
183    my $b1 = "\xC4\x80";          # 0xC4 0x80 is U+0100 in UTF-8
184
185    $u{$u0} = 1;
186    $u{$b0} = 2;
187    $u{$u1} = 3;
188    $u{$b1} = 4;
189
190    is(scalar keys %u, 4, "four different Unicode keys");
191    is($u{$u0}, 1, "U+00FF        -> 1");
192    is($u{$b0}, 2, "U+00C3 U+00BF -> 2");
193    is($u{$u1}, 3, "U+0100        -> 3 ");
194    is($u{$b1}, 4, "U+00C4 U+0080 -> 4");
195}
196
197# test for syntax errors
198for my $k (qw(each keys values)) {
199    eval $k;
200    like($@, qr/^Not enough arguments for $k/, "$k demands argument");
201}
202
203{
204    my %foo=(1..10);
205    my ($k,$v);
206    my $count=keys %foo;
207    my ($k1,$v1)=each(%foo);
208    my $yes = 0;
209    if (%foo) { $yes++ }
210    my ($k2,$v2)=each(%foo);
211    my $rest=0;
212    while (each(%foo)) {$rest++};
213    is($yes,1,"if(%foo) was true");
214    isnt($k1,$k2,"if(%foo) didnt mess with each (key)");
215    isnt($v1,$v2,"if(%foo) didnt mess with each (value)");
216    is($rest,3,"Got the expect number of keys");
217    my $hsv=1 && %foo;
218    like($hsv,'/',"Got bucket stats from %foo in scalar assignment context");
219    my @arr=%foo&&%foo;
220    is(@arr,10,"Got expected number of elements in list context");
221}
222{
223    our %foo=(1..10);
224    my ($k,$v);
225    my $count=keys %foo;
226    my ($k1,$v1)=each(%foo);
227    my $yes = 0;
228    if (%foo) { $yes++ }
229    my ($k2,$v2)=each(%foo);
230    my $rest=0;
231    while (each(%foo)) {$rest++};
232    is($yes,1,"if(%foo) was true");
233    isnt($k1,$k2,"if(%foo) didnt mess with each (key)");
234    isnt($v1,$v2,"if(%foo) didnt mess with each (value)");
235    is($rest,3,"Got the expect number of keys");
236    my $hsv=1 && %foo;
237    like($hsv,'/',"Got bucket stats from %foo in scalar assignment context");
238    my @arr=%foo&&%foo;
239    is(@arr,10,"Got expected number of elements in list context");
240}
241