/*
 * blogc: A blog compiler.
 * Copyright (C) 2015-2016 Rafael G. Martins <rafael@rafaelmartins.eng.br>
 *
 * This program can be distributed under the terms of the BSD License.
 * See the file LICENSE.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */

#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include <string.h>
#include "../src/error.h"
#include "../src/renderer.h"
#include "../src/source-parser.h"
#include "../src/template-parser.h"
#include "../src/utils/utils.h"


static b_slist_t*
create_sources(unsigned int count)
{
    const char *s[] = {
        "BOLA: asd\n"
        "GUDA: zxc\n"
        "GUDA2: zxc\n"
        "DATE: 2015-01-02 03:04:05\n"
        "DATE_FORMAT: %R\n"
        "TAGS: foo   bar baz\n"
        "-----\n"
        "ahahahahahahahaha",
        "BOLA: asd2\n"
        "GUDA: zxc2\n"
        "DATE: 2014-02-03 04:05:06\n"
        "-----\n"
        "ahahahahahahahaha2",
        "BOLA: asd3\n"
        "GUDA: zxc3\n"
        "DATE: 2013-01-02 03:04:05\n"
        "-----\n"
        "ahahahahahahahaha3",
    };
    assert_false(count > 3);
    blogc_error_t *err = NULL;
    b_slist_t *l = NULL;
    for (unsigned int i = 0; i < count; i++) {
        l = b_slist_append(l, blogc_source_parse(s[i], strlen(s[i]), &err));
        assert_null(err);
    }
    assert_int_equal(b_slist_length(l), count);
    return l;
}


static void
test_render_entry(void **state)
{
    const char *str =
        "foo\n"
        "{% block listing_once %}fuuu{% endblock %}\n"
        "{% block entry %}\n"
        "{{ DATE }}\n"
        "{% ifdef DATE_FORMATTED %}{{ DATE_FORMATTED }}{% endif %}\n"
        "{% ifdef GUDA %}{{ GUDA }}{% endif %}\n"
        "{% ifdef CHUNDA %}{{ CHUNDA }}{% endif %}\n"
        "{% endblock %}\n"
        "{% block listing %}lol{% endblock %}\n"
        "{% if GUDA == GUDA2 %}gudabola{% endif %}\n"
        "{% if GUDA == \"zxc\" %}LOL{% endif %}\n"
        "{% if GUDA != \"bola\" %}HEHE{% endif %}\n"
        "{% if GUDA < \"zxd\" %}LOL2{% endif %}\n"
        "{% if GUDA > \"zxd\" %}LOL3{% endif %}\n"
        "{% if GUDA <= \"zxc\" %}LOL4{% endif %}\n"
        "{% foreach TAGS %}lol {{ FOREACH_ITEM }} haha {% endforeach %}\n"
        "{% foreach TAGS_ASD %}yay{% endforeach %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "foo\n"
        "\n"
        "\n"
        "2015-01-02 03:04:05\n"
        "03:04\n"
        "zxc\n"
        "\n"
        "\n"
        "\n"
        "gudabola\n"
        "LOL\n"
        "HEHE\n"
        "LOL2\n"
        "\n"
        "LOL4\n"
        "lol foo haha lol bar haha lol baz haha \n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_listing(void **state)
{
    const char *str =
        "foo\n"
        "{% block listing_once %}fuuu{% endblock %}\n"
        "{% block entry %}\n"
        "{% ifdef GUDA %}{{ GUDA }}{% endif %}\n"
        "{% ifdef CHUNDA %}{{ CHUNDA }}{% endif %}\n"
        "{% endblock %}\n"
        "{% block listing %}\n"
        "{% ifdef DATE_FORMATTED %}{{ DATE_FORMATTED }}{% endif %}\n"
        "bola: {% ifdef BOLA %}{{ BOLA }}{% endif %}\n"
        "{% foreach TAGS %}lol {{ FOREACH_ITEM }} haha {% endforeach %}\n"
        "{% foreach TAGS_ASD %}yay{% endforeach %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(3);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, true);
    assert_string_equal(out,
        "foo\n"
        "fuuu\n"
        "\n"
        "\n"
        "03:04\n"
        "bola: asd\n"
        "lol foo haha lol bar haha lol baz haha \n"
        "\n"
        "\n"
        "2014-02-03 04:05:06\n"
        "bola: asd2\n"
        "\n"
        "\n"
        "\n"
        "2013-01-02 03:04:05\n"
        "bola: asd3\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_listing_empty(void **state)
{
    const char *str =
        "foo\n"
        "{% block listing_once %}fuuu{% endblock %}\n"
        "{% block entry %}\n"
        "{% ifdef GUDA %}{{ GUDA }}{% endif %}\n"
        "{% ifdef CHUNDA %}{{ CHUNDA }}{% endif %}\n"
        "{% endblock %}\n"
        "{% block listing %}\n"
        "{% ifdef DATE_FORMATTED %}{{ DATE_FORMATTED }}{% endif %}\n"
        "bola: {% ifdef BOLA %}{{ BOLA }}{% endif %}\n"
        "{% foreach TAGS %}lol {{ FOREACH_ITEM }} haha {% endforeach %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    char *out = blogc_render(l, NULL, NULL, true);
    assert_string_equal(out,
        "foo\n"
        "fuuu\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    free(out);
}


static void
test_render_ifdef(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% ifdef CHUNDA %}chunda\n"
        "{% ifdef GUDA %}guda\n"
        "{% ifdef BOLA %}bola\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_ifdef2(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% ifdef GUDA %}guda\n"
        "{% ifdef CHUNDA %}chunda\n"
        "{% ifdef BOLA %}bola\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "guda\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_ifdef3(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% ifdef GUDA %}guda\n"
        "{% ifdef BOLA %}bola\n"
        "{% ifdef CHUNDA %}chunda\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "guda\n"
        "bola\n"
        "\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_ifndef(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% ifndef CHUNDA %}chunda\n"
        "{% ifdef GUDA %}guda\n"
        "{% ifndef BOLA %}bola\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "chunda\n"
        "guda\n"
        "\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_if_eq(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% if GUDA == GUDA2 %}gudabola{% endif %}\n"
        "{% if GUDA == \"zxc\" %}guda\n"
        "{% ifdef BOLA %}bola\n"
        "{% if GUDA > \"zxc\" %}asd\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "gudabola\n"
        "guda\n"
        "bola\n"
        "\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_if_neq(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% if GUDA != BOLA %}gudabola{% endif %}\n"
        "{% if GUDA != \"zxa\" %}guda\n"
        "{% ifdef BOLA %}bola\n"
        "{% if GUDA > \"zxc\" %}asd\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "gudabola\n"
        "guda\n"
        "bola\n"
        "\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_if_lt(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% if BOLA < GUDA %}gudabola{% endif %}\n"
        "{% if GUDA < \"zxe\" %}guda\n"
        "{% ifdef BOLA %}bola\n"
        "{% if GUDA > \"zxc\" %}asd\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "gudabola\n"
        "guda\n"
        "bola\n"
        "\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_if_gt(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% if GUDA > BOLA %}gudabola{% endif %}\n"
        "{% if GUDA > \"zxa\" %}guda\n"
        "{% ifdef BOLA %}bola\n"
        "{% if GUDA > \"zxc\" %}asd\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "gudabola\n"
        "guda\n"
        "bola\n"
        "\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_if_lt_eq(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% if BOLA <= GUDA %}gudabola{% endif %}\n"
        "{% if GUDA <= \"zxc\" %}guda\n"
        "{% if GUDA <= \"zxe\" %}guda2\n"
        "{% ifdef BOLA %}bola\n"
        "{% if GUDA > \"zxc\" %}asd\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "gudabola\n"
        "guda\n"
        "guda2\n"
        "bola\n"
        "\n"
        "\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_if_gt_eq(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% if GUDA >= BOLA %}gudabola{% endif %}\n"
        "{% if GUDA >= \"zxc\" %}guda\n"
        "{% if GUDA >= \"zxa\" %}guda2\n"
        "{% ifdef BOLA %}bola\n"
        "{% if GUDA > \"zxc\" %}asd\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "gudabola\n"
        "guda\n"
        "guda2\n"
        "bola\n"
        "\n"
        "\n"
        "\n"
        "\n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_foreach(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% foreach TAGS %} {{ FOREACH_ITEM }} {% endforeach %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        " foo  bar  baz \n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_foreach_if(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% foreach TAGS %} {% if FOREACH_ITEM == \"bar\" %}{{ FOREACH_ITEM }}"
        "{% endif %} {% endforeach %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    char *out = blogc_render(l, s, NULL, false);
    assert_string_equal(out,
        "\n"
        "   bar   \n"
        "\n");
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_null(void **state)
{
    assert_null(blogc_render(NULL, NULL, NULL, false));
}


static void
test_render_outside_block(void **state)
{
    const char *str =
        "{% ifdef GUDA %}bola{% endif %}\n"
        "{{ BOLA }}\n"
        "{% ifndef CHUNDA %}lol{% endif %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    b_trie_t *c = b_trie_new(free);
    b_trie_insert(c, "GUDA", b_strdup("asd"));
    char *out = blogc_render(l, s, c, false);
    assert_string_equal(out,
        "bola\n"
        "\n"
        "lol\n");
    b_trie_free(c);
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_prefer_local_variable(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% ifdef LOL %}{{ LOL }}{% endif %}\n"
        "{% ifndef CHUNDA %}chunda\n"
        "{% ifdef GUDA %}{{ GUDA }}\n"
        "{% ifndef BOLA %}bola\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    b_trie_t *c = b_trie_new(free);
    b_trie_insert(c, "GUDA", b_strdup("hehe"));
    b_trie_insert(c, "LOL", b_strdup("hmm"));
    char *out = blogc_render(l, s, c, false);
    assert_string_equal(out,
        "\n"
        "hmm\n"
        "chunda\n"
        "zxc\n"
        "\n"
        "\n"
        "\n"
        "\n");
    b_trie_free(c);
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_respect_variable_scope(void **state)
{
    const char *str =
        "{{ LOL }}\n"
        "{{ BOLA }}\n"
        "{% block entry %}\n"
        "{% ifdef LOL %}{{ LOL }}{% endif %}\n"
        "{% ifdef BOLA %}{{ BOLA }}{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = create_sources(1);
    assert_non_null(s);
    b_trie_t *c = b_trie_new(free);
    char *out = blogc_render(l, s, c, false);
    assert_string_equal(out,
        "\n"
        "\n"
        "\n"
        "\n"
        "asd\n"
        "\n");
    b_trie_free(c);
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_render_ifcount_bug(void **state)
{
    const char *str =
        "{% block entry %}\n"
        "{% ifdef TITLE %}<h3>{{ TITLE }}</h3>{% endif %}\n"
        "{% ifdef IS_POST %}\n"
        "{% ifdef ASD %}ASD{% endif %}\n"
        "{% endif %}\n"
        "{% endblock %}\n";
    blogc_error_t *err = NULL;
    b_slist_t *l = blogc_template_parse(str, strlen(str), &err);
    assert_non_null(l);
    assert_null(err);
    b_slist_t *s = NULL;
    s = b_slist_append(s, b_trie_new(free));
    b_trie_insert(s->data, "TITLE", b_strdup("bola"));
    b_trie_t *c = b_trie_new(free);
    char *out = blogc_render(l, s, c, false);
    assert_string_equal(out,
        "\n"
        "<h3>bola</h3>\n"
        "\n"
        "\n");
    b_trie_free(c);
    blogc_template_free_stmts(l);
    b_slist_free_full(s, (b_free_func_t) b_trie_free);
    free(out);
}


static void
test_get_variable(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_insert(g, "NAME", b_strdup("bola"));
    b_trie_insert(g, "TITLE", b_strdup("bola2"));
    b_trie_t *l = b_trie_new(free);
    b_trie_insert(l, "NAME", b_strdup("chunda"));
    b_trie_insert(l, "TITLE", b_strdup("chunda2"));
    assert_string_equal(blogc_get_variable("NAME", g, l), "chunda");
    assert_string_equal(blogc_get_variable("TITLE", g, l), "chunda2");
    assert_null(blogc_get_variable("BOLA", g, l));
    b_trie_free(g);
    b_trie_free(l);
}


static void
test_get_variable_only_local(void **state)
{
    b_trie_t *g = NULL;
    b_trie_t *l = b_trie_new(free);
    b_trie_insert(l, "NAME", b_strdup("chunda"));
    b_trie_insert(l, "TITLE", b_strdup("chunda2"));
    assert_string_equal(blogc_get_variable("NAME", g, l), "chunda");
    assert_string_equal(blogc_get_variable("TITLE", g, l), "chunda2");
    assert_null(blogc_get_variable("BOLA", g, l));
    b_trie_free(l);
}


static void
test_get_variable_only_global(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_insert(g, "NAME", b_strdup("bola"));
    b_trie_insert(g, "TITLE", b_strdup("bola2"));
    b_trie_t *l = NULL;
    assert_string_equal(blogc_get_variable("NAME", g, l), "bola");
    assert_string_equal(blogc_get_variable("TITLE", g, l), "bola2");
    assert_null(blogc_get_variable("BOLA", g, l));
    b_trie_free(g);
}


static void
test_format_date(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_insert(g, "DATE_FORMAT", b_strdup("%H -- %M"));
    b_trie_t *l = b_trie_new(free);
    b_trie_insert(l, "DATE_FORMAT", b_strdup("%R"));
    char *date = blogc_format_date("2015-01-02 03:04:05", g, l);
    assert_string_equal(date, "03:04");
    free(date);
    b_trie_free(g);
    b_trie_free(l);
}


static void
test_format_date_with_global_format(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_insert(g, "DATE_FORMAT", b_strdup("%H -- %M"));
    b_trie_t *l = b_trie_new(free);
    char *date = blogc_format_date("2015-01-02 03:04:05", g, l);
    assert_string_equal(date, "03 -- 04");
    free(date);
    b_trie_free(g);
    b_trie_free(l);
}


static void
test_format_date_without_format(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_t *l = b_trie_new(free);
    char *date = blogc_format_date("2015-01-02 03:04:05", g, l);
    assert_string_equal(date, "2015-01-02 03:04:05");
    free(date);
    b_trie_free(g);
    b_trie_free(l);
}


static void
test_format_date_without_date(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_t *l = b_trie_new(free);
    char *date = blogc_format_date(NULL, g, l);
    assert_null(date);
    free(date);
    b_trie_free(g);
    b_trie_free(l);
}


static void
test_format_variable(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_insert(g, "NAME", b_strdup("bola"));
    b_trie_insert(g, "TITLE", b_strdup("bola2"));
    b_trie_t *l = b_trie_new(free);
    b_trie_insert(l, "NAME", b_strdup("chunda"));
    b_trie_insert(l, "TITLE", b_strdup("chunda2"));
    char *tmp = blogc_format_variable("NAME", g, l, NULL);
    assert_string_equal(tmp, "chunda");
    free(tmp);
    tmp = blogc_format_variable("TITLE", g, l, NULL);
    assert_string_equal(tmp, "chunda2");
    free(tmp);
    assert_null(blogc_format_variable("BOLA", g, l, NULL));
    b_trie_free(g);
    b_trie_free(l);
}


static void
test_format_variable_with_date(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_insert(g, "DATE", b_strdup("2010-11-12 13:14:15"));
    b_trie_insert(g, "DATE_FORMAT", b_strdup("%R"));
    b_trie_t *l = b_trie_new(free);
    b_trie_insert(l, "DATE", b_strdup("2011-12-13 14:15:16"));
    char *tmp = blogc_format_variable("DATE_FORMATTED", g, l, NULL);
    assert_string_equal(tmp, "14:15");
    free(tmp);
    b_trie_free(g);
    b_trie_free(l);
}


static void
test_format_variable_foreach(void **state)
{
    b_slist_t *l = NULL;
    l = b_slist_append(l, b_strdup("asd"));
    l = b_slist_append(l, b_strdup("qwe"));
    char *tmp = blogc_format_variable("FOREACH_ITEM", NULL, NULL, l->next);
    assert_string_equal(tmp, "qwe");
    free(tmp);
    b_slist_free_full(l, free);
}


static void
test_format_variable_foreach_empty(void **state)
{
    assert_null(blogc_format_variable("FOREACH_ITEM", NULL, NULL, NULL));
}


static void
test_split_list_variable(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_insert(g, "TAGS", b_strdup("asd  lol hehe"));
    b_trie_t *l = b_trie_new(free);
    b_trie_insert(l, "TAGS", b_strdup("asd  lol XD"));
    b_slist_t *tmp = blogc_split_list_variable("TAGS", g, l);
    assert_string_equal(tmp->data, "asd");
    assert_string_equal(tmp->next->data, "lol");
    assert_string_equal(tmp->next->next->data, "XD");
    b_slist_free_full(tmp, free);
    b_trie_free(g);
    b_trie_free(l);
}


static void
test_split_list_variable_not_found(void **state)
{
    b_trie_t *g = b_trie_new(free);
    b_trie_insert(g, "TAGS", b_strdup("asd  lol hehe"));
    b_trie_t *l = b_trie_new(free);
    b_trie_insert(l, "TAGS", b_strdup("asd  lol XD"));
    b_slist_t *tmp = blogc_split_list_variable("TAG", g, l);
    assert_null(tmp);
    b_trie_free(g);
    b_trie_free(l);
}


int
main(void)
{
    const UnitTest tests[] = {
        unit_test(test_render_entry),
        unit_test(test_render_listing),
        unit_test(test_render_listing_empty),
        unit_test(test_render_ifdef),
        unit_test(test_render_ifdef2),
        unit_test(test_render_ifdef3),
        unit_test(test_render_ifndef),
        unit_test(test_render_if_eq),
        unit_test(test_render_if_neq),
        unit_test(test_render_if_lt),
        unit_test(test_render_if_gt),
        unit_test(test_render_if_lt_eq),
        unit_test(test_render_if_gt_eq),
        unit_test(test_render_foreach),
        unit_test(test_render_foreach_if),
        unit_test(test_render_null),
        unit_test(test_render_outside_block),
        unit_test(test_render_prefer_local_variable),
        unit_test(test_render_respect_variable_scope),
        unit_test(test_render_ifcount_bug),
        unit_test(test_get_variable),
        unit_test(test_get_variable_only_local),
        unit_test(test_get_variable_only_global),
        unit_test(test_format_date),
        unit_test(test_format_date_with_global_format),
        unit_test(test_format_date_without_format),
        unit_test(test_format_date_without_date),
        unit_test(test_format_variable),
        unit_test(test_format_variable_with_date),
        unit_test(test_format_variable_foreach),
        unit_test(test_format_variable_foreach_empty),
        unit_test(test_split_list_variable),
        unit_test(test_split_list_variable_not_found),
    };
    return run_tests(tests);
}