Simplify array_eq function

[dbsrgits/DBIx-Class-Schema-Loader.git] / lib / DBIx / Class / Schema / Loader / Utils.pm

diff --git a/lib/DBIx/Class/Schema/Loader/Utils.pm b/lib/DBIx/Class/Schema/Loader/Utils.pm
index 8b52e17..4fc5fb6 100644 (file)
--- a/lib/DBIx/Class/Schema/Loader/Utils.pm
+++ b/lib/DBIx/Class/Schema/Loader/Utils.pm
@@ -3,23 +3,36 @@ package # hide from PAUSE
 
 use strict;
 use warnings;
+use Test::More;
+use String::CamelCase 'wordsplit';
+use Carp::Clan qw/^DBIx::Class/;
+use List::Util 'all';
+use namespace::clean;
 use Exporter 'import';
+use Data::Dumper ();
 
-our @EXPORT_OK = qw/split_name dumper dumper_squashed eval_without_redefine_warnings/;
+our @EXPORT_OK = qw/split_name dumper dumper_squashed eval_package_without_redefine_warnings class_path no_warnings warnings_exist warnings_exist_silent slurp_file write_file array_eq sigwarn_silencer apply firstidx uniq/;
 
-use constant BY_CASE_TRANSITION =>
+use constant BY_CASE_TRANSITION_V7 =>
     qr/(?<=[[:lower:]\d])[\W_]*(?=[[:upper:]])|[\W_]+/;
 
 use constant BY_NON_ALPHANUM =>
     qr/[\W_]+/;
 
-sub split_name($) {
-    my $name = shift;
+my $LF   = "\x0a";
+my $CRLF = "\x0d\x0a";
 
-    split $name =~ /[[:upper:]]/ && $name =~ /[[:lower:]]/ ? BY_CASE_TRANSITION : BY_NON_ALPHANUM, $name;
-}
+sub split_name($;$) {
+    my ($name, $v) = @_;
+
+    my $is_camel_case = $name =~ /[[:upper:]]/ && $name =~ /[[:lower:]]/;
 
-# Stolen from Data::Dumper::Concise
+    if ((not $v) || $v >= 8) {
+        return map split(BY_NON_ALPHANUM, $_), wordsplit($name);
+    }
+
+    return split $is_camel_case ? BY_CASE_TRANSITION_V7 : BY_NON_ALPHANUM, $name;
+}
 
 sub dumper($) {
     my $val = shift;
@@ -37,16 +50,157 @@ sub dumper_squashed($) {
     return $dd->Values([ $val ])->Dump;
 }
 
-sub eval_without_redefine_warnings {
-    my $code = shift;
+# copied from DBIx::Class::_Util, import from there once it's released
+sub sigwarn_silencer {
+    my $pattern = shift;
+
+    croak "Expecting a regexp" if ref $pattern ne 'Regexp';
+
+    my $orig_sig_warn = $SIG{__WARN__} || sub { CORE::warn(@_) };
+
+    return sub { &$orig_sig_warn unless $_[0] =~ $pattern };
+}
+
+# Copied with stylistic adjustments from List::MoreUtils::PP
+sub firstidx (&@) {
+    my $f = shift;
+    foreach my $i (0..$#_) {
+        local *_ = \$_[$i];
+        return $i if $f->();
+    }
+    return -1;
+}
+
+sub uniq (@) {
+    my %seen = ();
+    grep { not $seen{$_}++ } @_;
+}
+
+sub apply (&@) {
+    my $action = shift;
+    $action->() foreach my @values = @_;
+    wantarray ? @values : $values[-1];
+}
+
+sub eval_package_without_redefine_warnings {
+    my ($pkg, $code) = @_;
+
+    local $SIG{__WARN__} = sigwarn_silencer(qr/^Subroutine \S+ redefined/);
+
+    # This hairiness is to handle people using "use warnings FATAL => 'all';"
+    # in their custom or external content.
+    my @delete_syms;
+    my $try_again = 1;
+
+    while ($try_again) {
+        eval $code;
+
+        if (my ($sym) = $@ =~ /^Subroutine (\S+) redefined/) {
+            delete $INC{ +class_path($pkg) };
+            push @delete_syms, $sym;
+
+            foreach my $sym (@delete_syms) {
+                no strict 'refs';
+                undef *{"${pkg}::${sym}"};
+            }
+        }
+        elsif ($@) {
+            die $@ if $@;
+        }
+        else {
+            $try_again = 0;
+        }
+    }
+}
+
+sub class_path {
+    my $class = shift;
+
+    my $class_path = $class;
+    $class_path =~ s{::}{/}g;
+    $class_path .= '.pm';
+
+    return $class_path;
+}
+
+sub no_warnings(&;$) {
+    my ($code, $test_name) = @_;
+
+    my $failed = 0;
+
+    my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
+    local $SIG{__WARN__} = sub {
+        $failed = 1;
+        $warn_handler->(@_);
+    };
+
+    $code->();
+
+    ok ((not $failed), $test_name);
+}
+
+sub warnings_exist(&$$) {
+    my ($code, $re, $test_name) = @_;
+
+    my $matched = 0;
 
     my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
     local $SIG{__WARN__} = sub {
-        $warn_handler->(@_)
-            unless $_[0] =~ /^Subroutine \S+ redefined/;
+        if ($_[0] =~ $re) {
+            $matched = 1;
+        }
+        else {
+            $warn_handler->(@_)
+        }
     };
-    eval $code;
-    die $@ if $@;
+
+    $code->();
+
+    ok $matched, $test_name;
+}
+
+sub warnings_exist_silent(&$$) {
+    my ($code, $re, $test_name) = @_;
+
+    my $matched = 0;
+
+    local $SIG{__WARN__} = sub { $matched = 1 if $_[0] =~ $re; };
+
+    $code->();
+
+    ok $matched, $test_name;
+}
+
+sub slurp_file($) {
+    my $file_name = shift;
+
+    open my $fh, '<:encoding(UTF-8)', $file_name,
+        or croak "Can't open '$file_name' for reading: $!";
+
+    my $data = do { local $/; <$fh> };
+
+    close $fh;
+
+    $data =~ s/$CRLF|$LF/\n/g;
+
+    return $data;
+}
+
+sub write_file($$) {
+    my $file_name = shift;
+
+    open my $fh, '>:encoding(UTF-8)', $file_name,
+        or croak "Can't open '$file_name' for writing: $!";
+
+    print $fh shift;
+    close $fh;
+}
+
+sub array_eq($$) {
+    no warnings 'uninitialized';
+    my ($l, $r) = @_;
+
+    return @$l == @$r && all { $l->[$_] eq $r->[$_] } 0..$#$l;
 }
 
 1;