Add more specific checking to Config::_validate sub

This commit adds better checking to the Config::_validate as it
validates bool values on the configuration.  Tests were
additionally added and updated to correctly validate the possible
values, specifically 0 or 1 (and test incorrect values).

lib/Pasteburn/Config.pm

@@ -51,7 +51,6 @@ sub _validate {
         }
     }
 
-    # verify secret age exists and is a positive value
     unless ( exists $config->{secret}{age} ) {
         die "config section secret age is required\n";
     }
@@ -60,27 +59,24 @@ sub _validate {
         die "config section secret age must be a positive integer\n";
     }
 
-    # verify secret scrub exists
-    unless ( exists $config->{secret}{scrub} ) {
+    unless ( exists $config->{secret}{scrub} && ( $config->{secret}{scrub} == 1 || $config->{secret}{scrub} == 0 ) ) {
         die "config section secret scrub is required\n";
     }
 
-    # verify passphrase allow_blank exists
-    unless ( exists $config->{passphrase}{allow_blank} ) {
+    unless ( exists $config->{passphrase}{allow_blank} && ( $config->{passphrase}{allow_blank} == 1 || $config->{passphrase}{allow_blank} == 0 ) ) {
         die "config section passphrase allow_blank is required\n";
     }
 
-    # verify cookie secret_key is set and isn't the default string in the example config
     unless ( exists $config->{cookie}{secret_key} && $config->{cookie}{secret_key} ) {
         die "config section cookie secret_key is required\n";
     }
 
+    # verify cookie secret_key isn't the default string in the example config
     if ( $config->{cookie}{secret_key} eq 'default' ) {
         die "config section cookie secret_key is the default string and must be updated\n";
     }
 
-    # verify footer links exists
-    unless ( exists $config->{footer}{links} ) {
+    unless ( exists $config->{footer}{links} && ( $config->{footer}{links} == 1 || $config->{footer}{links} == 0 ) ) {
         die "config section footer links is required\n";
     }
 

t/unit/lib-Pasteburn-Config/_validate.t

@@ -37,7 +37,7 @@ EXCEPTIONS: {
     subtest 'dies if missing any of the config keys' => sub {
         plan tests => 4;
 
-        foreach my $required ( keys %{ $config_expected } ) {
+        foreach my $required ( sort keys %{ $config_expected } ) {
             my $stored = delete $config_expected->{ $required };
 
             dies_ok { Pasteburn::Config::_validate( $config_expected ) }
@@ -50,8 +50,8 @@ EXCEPTIONS: {
     subtest 'dies if missing any of the config sub keys' => sub {
         plan tests => 5;
 
-        foreach my $required ( keys %{ $config_expected } ) {
-            foreach my $required_sub_key ( keys %{ $config_expected->{$required} } ) {
+        foreach my $required ( sort keys %{ $config_expected } ) {
+            foreach my $required_sub_key ( sort keys %{ $config_expected->{$required} } ) {
                 my $stored = delete $config_expected->{$required}{$required_sub_key};
 
                 dies_ok { Pasteburn::Config::_validate( $config_expected ) }
@@ -86,6 +86,57 @@ EXCEPTIONS: {
 
         $config_expected->{cookie}{secret_key} = $stored;
     };
+
+    subtest 'dies if secret_key is empty string' => sub {
+        plan tests => 1;
+
+        my $stored = delete $config_expected->{cookie}{secret_key};
+        $config_expected->{cookie}{secret_key} = '';
+
+        dies_ok { Pasteburn::Config::_validate( $config_expected ) }
+            "dies if cookie secret_key is default empty string";
+
+        $config_expected->{cookie}{secret_key} = $stored;
+    };
+
+    subtest 'dies if secret scrub does not validate value' => sub {
+        plan tests => 3;
+
+        my $secret_scrub = $config_expected->{secret}{scrub};
+        foreach my $value ( qw{ -1 2 a } ) {
+            $config_expected->{secret}{scrub} = $value;
+            dies_ok { Pasteburn::Config::_validate( $config_expected ) }
+                "dies if secret scrub is $value";
+
+            $config_expected->{secret}{scrub} = $secret_scrub;
+        }
+    };
+
+    subtest 'dies if passphrase allow_blank does not validate value' => sub {
+        plan tests => 3;
+
+        my $allow_blank = $config_expected->{passphrase}{allow_blank};
+        foreach my $value ( qw{ -1 2 a } ) {
+            $config_expected->{passphrase}{allow_blank} = $value;
+            dies_ok { Pasteburn::Config::_validate( $config_expected ) }
+                "dies if passphrase allow_blank is $value";
+
+            $config_expected->{passphrase}{allow_blank} = $allow_blank;
+        }
+    };
+
+    subtest 'dies if footer links does not validate value' => sub {
+        plan tests => 3;
+
+        my $links = $config_expected->{footer}{links};
+        foreach my $value ( qw{ -1 2 a } ) {
+            $config_expected->{footer}{links} = $value;
+            dies_ok { Pasteburn::Config::_validate( $config_expected ) }
+                "dies if footer links is $value";
+
+            $config_expected->{footer}{links} = $links;
+        }
+    };
 }
 
 done_testing;