Add testcases for nested regroup and dictsort

tests/src/erlydtl_unittests.erl

@@ -399,6 +399,13 @@ tests() ->
                    <<"{{ var1|default_if_none:\"foo\" }}">>, [], <<"foo">>},
                 {"|default_if_none:\"foo\" 2",
                     <<"{{ var1|default_if_none:\"foo\" }}">>, [{var1, "bar"}], <<"bar">>},
+		{"|dictsort 1",
+		 <<"{{ var1|dictsort:\"foo\" }}">>,
+		 [{var1,[[{foo,2}],[{foo,1}]]}], <<"{foo,1}{foo,2}">>},
+	        {"|dictsort 2",
+		 <<"{{ var1|dictsort:\"foo.bar\" }}">>,
+		 [{var1,[[{foo,[{bar,2}]}],[{foo,[{bar,1}]}]]}],
+		 <<"{foo,[{bar,1}]}{foo,[{bar,2}]}">>},
                 {"|divisibleby:\"3\"",
                     <<"{% if var1|divisibleby:\"3\" %}yay{% endif %}">>, [{var1, 21}], <<"yay">>},
                 {"|divisibleby:\"3\"",
@@ -946,7 +953,25 @@ tests() ->
                             [{first_name, "Condi"}, {gender, "Female"}],
                             [{first_name, "Bill"}, {gender, "Male"}]
                         ]}],
-                <<"Male\nGeorge\nFemale\nMargaret\nCondi\nMale\nBill\n">>}
+                <<"Male\nGeorge\nFemale\nMargaret\nCondi\nMale\nBill\n">>},
+	    {"NestedOrdered", <<"{% regroup people by name.last as lastname_list %}{% for lastname in lastname_list %}{{ lastname.grouper }}\n{% for item in lastname.list %}{{ item.name.first }}\n{% endfor %}{% endfor %}{% endregroup %}">>,
+                [{people, [[{name, [{first,"George"},{last,"Costanza"}]}],
+			   [{name, [{first,"Margaret"},{last,"Costanza"}]}],
+			   [{name, [{first,"Bill"},{last,"Buffalo"}]}],
+			   [{name, [{first,"Condi"},{last,"Buffalo"}]}]]}],
+               <<"Costanza\nGeorge\nMargaret\nBuffalo\nBill\nCondi\n">>},
+	    {"NestedUnordered", <<"{% regroup people by name.last as lastname_list %}{% for lastname in lastname_list %}{{ lastname.grouper }}\n{% for item in lastname.list %}{{ item.name.first }}\n{% endfor %}{% endfor %}{% endregroup %}">>,
+                [{people, [[{name, [{first,"George"},{last,"Costanza"}]}],
+			   [{name, [{first,"Bill"},{last,"Buffalo"}]}],
+			   [{name, [{first,"Margaret"},{last,"Costanza"}]}],
+			   [{name, [{first,"Condi"},{last,"Buffalo"}]}]]}],
+               <<"Costanza\nGeorge\nBuffalo\nBill\nCostanza\nMargaret\nBuffalo\nCondi\n">>},
+	    {"Filter", <<"{% regroup people|dictsort:\"name.last\" by name.last as lastname_list %}{% for lastname in lastname_list %}{{ lastname.grouper }}\n{% for item in lastname.list %}{{ item.name.first }}\n{% endfor %}{% endfor %}{% endregroup %}">>,
+		  [{people, [[{name, [{first,"George"},{last,"Costanza"}]}],
+			     [{name, [{first,"Bill"},{last,"Buffalo"}]}],
+			     [{name, [{first,"Margaret"},{last,"Costanza"}]}],
+			     [{name, [{first,"Condi"},{last,"Buffalo"}]}]]}],
+		  <<"Buffalo\nBill\nCondi\nCostanza\nGeorge\nMargaret\n">>}
         ]},
     {"spaceless", [
             {"Beginning", <<"{% spaceless %}    <b>foo</b>{% endspaceless %}">>, [], <<"<b>foo</b>">>},