add tests for =defn implementation (#457)

S26-documentation/14-defn.t

@@ -0,0 +1,90 @@
+use v6;
+use Test;
+
+plan 30;
+
+my $o;
+my $o1;
+my $p = -1;
+
+#=== valid ways to write a =defn block:
+
+# delimited, uses %config
+=begin defn :numbered
+B<term 1>
+B<def 1>
+=end defn
+
+$o  = $=pod[++$p];
+isa-ok $o, 'Pod::Defn';
+ok $o.config<numbered>:exists;
+is $o.term, 'B<term 1>';
+isa-ok $o.contents[0], 'Pod::Block::Para';
+is $o.contents[0].contents[0], 'B<def 1>';
+
+# abbreviated, no %config, uses data on first line for term
+=defn term 2
+def 2 line1
+def 2 line2
+
+$o  = $=pod[++$p];
+isa-ok $o, 'Pod::Defn';
+is $o.term, 'term 2';
+isa-ok $o.contents[0], 'Pod::Block::Para';
+is $o.contents[0].contents[0], 'def 2 line1 def 2 line2';
+
+# abbreviated, no %config, uses data on first line for term
+# hash on first line is alias for %config ':numbered'
+=defn # term 3
+def 3 line1
+def 3 line2
+
+$o  = $=pod[++$p];
+isa-ok $o, 'Pod::Defn';
+ok $o.config<numbered>:exists;
+is $o.term, 'term 3';
+isa-ok $o.contents[0], 'Pod::Block::Para';
+is $o.contents[0].contents[0], 'def 3 line1 def 3 line2';
+
+
+# paragraph, uses %config
+=for defn
+term 4
+def 4 line1
+def 4 line2
+
+$o  = $=pod[++$p];
+isa-ok $o, 'Pod::Defn';
+is $o.term, 'term 4';
+isa-ok $o.contents[0], 'Pod::Block::Para';
+is $o.contents[0].contents[0], 'def 4 line1 def 4 line2';
+
+# paragraph, uses %config
+=for defn :numbered(0)
+term 5
+def 5 line1
+def 5 line2
+
+$o  = $=pod[++$p];
+isa-ok $o, 'Pod::Defn';
+is $o.config<numbered>, 0;
+is $o.term, 'term 5';
+isa-ok $o.contents[0], 'Pod::Block::Para';
+is $o.contents[0].contents[0], 'def 5 line1 def 5 line2';
+
+# delimited, uses %config, multiple paragraphs
+=begin defn :numbered
+term 6
+def 6 line 1
+
+def 6 line 2 after blank line
+=end defn
+
+$o  = $=pod[++$p];
+isa-ok $o, 'Pod::Defn';
+is $o.config<numbered>, True;
+is $o.term, 'term 6';
+isa-ok $o.contents[0], 'Pod::Block::Para';
+is $o.contents[0].contents[0], 'def 6 line 1';
+isa-ok $o.contents[1], 'Pod::Block::Para';
+is $o.contents[1].contents[0], 'def 6 line 2 after blank line';