1# -*- mode: perl; -*-
2
3use strict;
4use warnings;
5
6use Test::More tests => 7705;
7
8###############################################################################
9# Read and load configuration file and backend library.
10
11use Config::Tiny ();
12
13my $config_file = 'xt/author/lib.ini';
14my $config = Config::Tiny -> read('xt/author/lib.ini')
15  or die Config::Tiny -> errstr();
16
17# Read the library to test.
18
19our $LIB = $config->{_}->{lib};
20
21die "No library defined in file '$config_file'"
22  unless defined $LIB;
23die "Invalid library name '$LIB' in file '$config_file'"
24  unless $LIB =~ /^[A-Za-z]\w*(::\w+)*\z/;
25
26# Read the reference type the library uses.
27
28our $REF = $config->{_}->{ref};
29
30die "No reference type defined in file '$config_file'"
31  unless defined $REF;
32die "Invalid reference type '$REF' in file '$config_file'"
33  unless $REF =~ /^[A-Za-z]\w*(::\w+)*\z/;
34
35# Load the library.
36
37eval "require $LIB";
38die $@ if $@;
39
40###############################################################################
41
42my $scalar_util_ok = eval { require Scalar::Util; };
43Scalar::Util -> import('refaddr') if $scalar_util_ok;
44
45diag "Skipping some tests since Scalar::Util is not installed."
46  unless $scalar_util_ok;
47
48can_ok($LIB, '_add');
49
50my @data;
51
52# Small numbers.
53
54for (my $x = 0; $x <= 24 ; ++ $x) {
55    for (my $y = 0; $y <= 24 ; ++ $y) {
56        push @data, [ $x, $y, $x + $y ];
57    }
58}
59
60# 9 + 11, 99 + 101, 999 + 1001, 9999 + 1001, ...
61
62for (my $p = 1; $p <= 50 ; ++ $p) {
63    my $x = "9" x $p;
64    my $y = "1" . ("0" x ($p - 1)) . "1";
65    my $z = "2" . ("0" x $p);
66    push @data, [ $x, $y, $z ];
67}
68
69# 9 + 9, 99 + 99, 999 + 999, 9999 + 9999, ...
70
71for (my $p = 1; $p <= 50 ; ++ $p) {
72    my $x = "9" x $p;
73    my $z = "1" . ("9" x ($p - 1)) . "8";
74    push @data, [ $x, $x, $z ];
75}
76
77# Powers of 10.
78
79for (my $p = 0; $p <= 24 ; ++ $p) {
80    for (my $q = 0; $q <= 24 ; ++ $q) {
81        my $x = "1" . ("0" x $p);
82        my $y = "1" . ("0" x $q);
83        my ($max, $min) = $p > $q ? ($p, $q) : ($q, $p);
84        my $z = "1" . ("0" x $max);
85        substr($z, -1 - $min, 1) = substr($z, -1 - $min, 1) + 1;
86        push @data, [ $x, $y, $z ];
87    }
88}
89
90# Add data in data file.
91
92(my $datafile = $0) =~ s/\.t/.dat/;
93open DATAFILE, $datafile or die "$datafile: can't open file for reading: $!";
94while (<DATAFILE>) {
95    s/\s+\z//;
96    next if /^#/ || ! /\S/;
97    push @data, [ split /:/ ];
98}
99close DATAFILE or die "$datafile: can't close file after reading: $!";
100
101# List context.
102
103for (my $i = 0 ; $i <= $#data ; ++ $i) {
104    my ($in0, $in1, $out0) = @{ $data[$i] };
105
106    my ($x, $y, @got);
107
108    my $test = qq|\$x = $LIB->_new("$in0"); |
109             . qq|\$y = $LIB->_new("$in1"); |
110             . qq|\@got = $LIB->_add(\$x, \$y);|;
111
112    diag("\n$test\n\n") if $ENV{AUTHOR_DEBUGGING};
113
114    eval $test;
115    is($@, "", "'$test' gives emtpy \$\@");
116
117    subtest "_add() in list context: $test", sub {
118        plan tests => 9;
119
120        cmp_ok(scalar @got, '==', 1,
121               "'$test' gives one output arg");
122
123        is(ref($got[0]), $REF,
124           "'$test' output arg is a $REF");
125
126        is($LIB->_check($got[0]), 0,
127           "'$test' output is valid");
128
129        is($LIB->_str($got[0]), $out0,
130           "'$test' output arg has the right value");
131
132      SKIP: {
133            skip "Scalar::Util not available", 1 unless $scalar_util_ok;
134
135            isnt(refaddr($got[0]), refaddr($y),
136                 "'$test' output arg is not the second input arg");
137        }
138
139        is(ref($x), $REF,
140           "'$test' first input arg is still a $REF");
141
142        ok($LIB->_str($x) eq $out0 || $LIB->_str($x) eq $in0,
143           "'$test' first input arg has the correct value");
144
145        is(ref($y), $REF,
146           "'$test' second input arg is still a $REF");
147
148        is($LIB->_str($y), $in1,
149           "'$test' second input arg is unmodified");
150    };
151}
152
153# Scalar context.
154
155for (my $i = 0 ; $i <= $#data ; ++ $i) {
156    my ($in0, $in1, $out0) = @{ $data[$i] };
157
158    my ($x, $y, $got);
159
160    my $test = qq|\$x = $LIB->_new("$in0"); |
161             . qq|\$y = $LIB->_new("$in1"); |
162             . qq|\$got = $LIB->_add(\$x, \$y);|;
163
164    diag("\n$test\n\n") if $ENV{AUTHOR_DEBUGGING};
165
166    eval $test;
167    is($@, "", "'$test' gives emtpy \$\@");
168
169    subtest "_add() in scalar context: $test", sub {
170        plan tests => 8;
171
172        is(ref($got), $REF,
173           "'$test' output arg is a $REF");
174
175        is($LIB->_check($got), 0,
176           "'$test' output is valid");
177
178        is($LIB->_str($got), $out0,
179           "'$test' output arg has the right value");
180
181      SKIP: {
182            skip "Scalar::Util not available", 1 unless $scalar_util_ok;
183
184            isnt(refaddr($got), refaddr($y),
185                 "'$test' output arg is not the second input arg");
186        }
187
188        is(ref($x), $REF,
189           "'$test' first input arg is still a $REF");
190
191        ok($LIB->_str($x) eq $out0 || $LIB->_str($x) eq $in0,
192           "'$test' first input arg has the correct value");
193
194        is(ref($y), $REF,
195           "'$test' second input arg is still a $REF");
196
197        is($LIB->_str($y), $in1,
198           "'$test' second input arg is unmodified");
199    };
200}
201