Factor the common part of t/20-hash.t and t/21-array.t into a new t/lib/autovivificat...

[perl/modules/autovivification.git] / t / lib / autovivification / TestCases.pm

diff --git a/t/lib/autovivification/TestCases.pm b/t/lib/autovivification/TestCases.pm
new file mode 100644 (file)
index 0000000..507a4d8
--- /dev/null
+++ b/t/lib/autovivification/TestCases.pm
@@ -0,0 +1,84 @@
+package autovivification::TestCases;
+
+use strict;
+use warnings;
+
+use Test::More;
+
+sub import {
+ no strict 'refs';
+ *{caller().'::testcase_ok'} = \&testcase_ok;
+}
+
+sub source {
+ my ($var, $init, $code, $exp, $use, $global) = @_;
+ my $decl = $global ? "our $var; local $var;" : "my $var;";
+ my $test = $var =~ /^[@%]/ ? "\\$var" : $var;
+ return <<TESTCASE;
+my \@exp = ($exp);
+$decl
+$init
+my \$res = eval {
+ local \$SIG{__WARN__} = sub { die join '', 'warn:', \@_ };
+ $use
+ $code
+};
+if (ref \$exp[0]) {
+ like \$@, \$exp[0], \$desc . ' [exception]';
+} else {
+ is   \$@, \$exp[0], \$desc . ' [exception]';
+}
+is_deeply \$res, \$exp[1], \$desc . ' [return]';
+is_deeply $test, \$exp[2], \$desc . ' [variable]';
+TESTCASE
+}
+
+sub testcase_ok {
+ local $_  = shift;
+ my $sigil = shift;
+ my @chunks = split /#+/, "$_ ";
+ s/^\s+//, s/\s+$// for @chunks;
+ my ($init, $code, $exp, $opts) = @chunks;
+ (my $var = $init) =~ s/[^\$@%\w].*//;
+ $init = $var eq $init ? '' : "$init;";
+ my $use;
+ if ($opts) {
+  for (split ' ', $opts) {
+   my $no = 1;
+   $no = 0 if s/^([-+])// and $1 eq '-';
+   $use .= ($no ? 'no' : 'use') . " autovivification '$_';"
+  }
+ } elsif (defined $opts) {
+  $opts = 'empty';
+  $use  = 'no autovivification;';
+ } else {
+  $opts = 'default';
+  $use  = '';
+ }
+ my @testcases = (
+  [ $var, $init,               $code, $exp, $use, 0 ],
+  [ $var, "use strict; $init", $code, $exp, $use, 1 ],
+  [ $var, "no strict;  $init", $code, $exp, $use, 1 ],
+ );
+ my @extra;
+ for (@testcases) {
+  my $var = $_->[0];
+  if ($var =~ /\$/) {
+   my @new = @$_;
+   $new[0] =~ s/^$/$sigil/;
+   $new[1] =~ s/$var\->/$var/g;
+   $new[2] =~ s/$var\->/$var/g;
+   push @extra, \@new;
+  }
+ }
+ push @testcases, @extra;
+ for (@testcases) {
+  my $testcase = source(@$_);
+  my ($var, $init, $code) = @$_;
+  my $desc = do { (my $x = "$var | $init") =~ s,;\s+$,,; $x } . " | $code | $opts";
+  eval $testcase;
+  diag "== This testcase failed to compile ==\n$testcase\n## Reason: $@" if $@;
+ }
+}
+
+1;