2 syntax pod corrections + 2 new test files that increase to coverage of

sub's tested with mostly empty data.

lib/GraphViz2.pm

@@ -72,9 +72,9 @@ has global =>
 
 has graph =>
 (
-	default  => sub{return ''},
+	default  => sub{return {} },
 	is       => 'rw',
-	#isa      => HashRef,
+	isa      => HashRef,
 	required => 0,
 );
 
@@ -1742,7 +1742,7 @@ $level defaults to 'debug', and $message defaults to ''.
 
 If called with $level eq 'error', it dies with $message.
 
-=head2 logger($logger_object])
+=head2 logger($logger_object)
 
 Gets or sets the log object.
 

lib/GraphViz2/Filer.pm

@@ -159,7 +159,7 @@ It returns a new object of type C<GraphViz2::Filer>.
 
 =head1 Methods
 
-=head1 get_annotations()
+=head2 get_annotations()
 
 Returns a hash (sic) keyed by *.pl name, with the values being the text off line 3 of each script.
 

t/test_more_methods.t

@@ -0,0 +1,53 @@
+use strict;
+use utf8;
+use warnings;
+use warnings qw(FATAL utf8);       # Fatalize encoding glitches.
+use open qw(:std :utf8);           # Undeclared streams in UTF-8.
+use charnames qw(:full :short);    # Unneeded in v5.16.
+
+use Data::Dumper;
+use Test::More;
+use GraphViz2;
+
+# ------------------------------------------------
+
+my $GraphViz2 = GraphViz2->new();
+my $count     = 0;
+
+my %methods = (
+    add_node => { id => 1, args => { name => 'TestNode1', label => 'n1' } },
+    add_edge => { id => 2, args => { from => 'TestNode1', to    => '' } },
+    default_subgraph  => { id => 3, args => {} },
+    escape_some_chars => { id => 4, args => { $GraphViz2, "abc123[]()" } },
+    push_subgraph => {
+        id   => 5,
+        args => {
+            name  => 'subgraph_test',
+            edge  => {},
+            graph => { bgcolor => 'grey', label => 'subgraph_test' }
+        }
+    },
+    pop_subgraph            => { id => 6,  args => {} },
+    report_valid_attributes => { id => 7,  args => {} },
+    run                     => { id => 8,  args => {} },
+    run_map                 => { id => 9,  args => {} },
+    run_mapless             => { id => 10, args => {} },
+);
+foreach my $sub ( sort { $methods{$a}{id} <=> $methods{$b}{id} } keys %methods )
+{
+
+    # Check we can call this function/method/sub
+    $count++;
+    can_ok( $GraphViz2, $sub );
+
+    $count++;
+    ok(
+        $GraphViz2->$sub( %{ $methods{$sub}{'args'} } ),
+        "Run $sub with -> "
+          . join(
+            ", ", map { "$_:$methods{$sub}{'args'}{$_}" } keys %{ $methods{$sub}{'args'} }
+          )
+    );
+}
+done_testing($count);
+

t/test_new.t

@@ -0,0 +1,18 @@
+use strict;
+use utf8;
+use warnings;
+use warnings  qw(FATAL utf8);    # Fatalize encoding glitches.
+use open      qw(:std :utf8);    # Undeclared streams in UTF-8.
+use charnames qw(:full :short);  # Unneeded in v5.16.
+
+use Test::More;
+
+# ------------------------------------------------
+
+BEGIN{ use_ok('GraphViz2'); }
+
+my($count)  = 1; # Counting the use_ok above.
+$count++;
+my $GraphViz2 = new_ok('GraphViz2');
+done_testing($count);
+