--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test_dataproviders_blog.py	Sun Oct 29 22:51:57 2017 -0700
@@ -0,0 +1,123 @@
+from .mockutil import mock_fs, mock_fs_scope
+from .rdrutil import render_simple_page
+
+
+def _get_post_tokens(i, posts_per_month=2, posts_per_year=5, first_year=2001):
+    year = first_year + int(i / posts_per_year)
+    i_in_year = i % posts_per_year
+    month = int(i_in_year / posts_per_month) + 1
+    day = i_in_year % posts_per_month + 1
+    return (year, month, day, i + 1)
+
+
+def test_blog_provider_archives():
+    fs = (mock_fs()
+          .withConfig({
+              'site': {
+                  'default_layout': 'none',
+                  'default_format': 'none'
+              }
+          })
+          .withPages(
+              20,
+              lambda i: ('posts/%04d-%02d-%02d_post-%d.md' %
+                         _get_post_tokens(i)),
+              lambda i: {'title': "Post %02d" % (i + 1), 'format': 'none'},
+              lambda i: "This is post %02d" % (i + 1))
+          .withPage('pages/allposts.html',
+                    {'layout': 'none'},
+                    "{%for p in blog.posts-%}\n"
+                    "{{p.title}}\n"
+                    "{%endfor%}\n")
+          .withPage('pages/allyears.html',
+                    {'layout': 'none'},
+                    "{%for y in blog.years-%}\n"
+                    "YEAR={{y}}\n"
+                    "{%for p in y.posts-%}\n"
+                    "{{p.title}}\n"
+                    "{%endfor%}\n"
+                    "{%endfor%}")
+          .withFile('kitchen/templates/_year.html',
+                    "YEAR={{year}}\n"
+                    "{%for p in archives-%}\n"
+                    "{{p.title}}\n"
+                    "{%endfor%}\n"
+                    "\n"
+                    "{%for m in monthly_archives-%}\n"
+                    "MONTH={{m.timestamp|date('%m')}}\n"
+                    "{%for p in m.posts-%}\n"
+                    "{{p.title}}\n"
+                    "{%endfor%}\n"
+                    "{%endfor%}"))
+
+    with mock_fs_scope(fs):
+        fs.runChef('bake', '-o', fs.path('counter'))
+
+        # Check `allposts`.
+        # Should have all the posts. Duh.
+        expected = '\n'.join(map(lambda i: "Post %02d" % i,
+                                 range(20, 0, -1))) + '\n'
+        actual = fs.getFileEntry('counter/allposts.html')
+        assert expected == actual
+
+        # Check `allyears`.
+        # Should have all the years, each with 5 posts in reverse
+        # chronological order.
+        expected = ''
+        cur_index = 20
+        for y in range(2004, 2000, -1):
+            expected += ('YEAR=%04d\n' % y) + '\n'.join(
+                map(lambda i: "Post %02d" % i,
+                    range(cur_index, cur_index - 5, -1))) + '\n\n'
+            cur_index -= 5
+        actual = fs.getFileEntry('counter/allyears.html')
+        assert expected == actual
+
+        # Check each yearly page.
+        # Should have both the posts for that year (5 posts) in
+        # chronological order, followed by the months for that year
+        # (3 months) and the posts in each month (2, 2, and 1).
+        cur_index = 1
+        for y in range(2001, 2005):
+            orig_index = cur_index
+            expected = ('YEAR=%04d\n' % y) + '\n'.join(
+                map(lambda i: "Post %02d" % i,
+                    range(cur_index, cur_index + 5))) + '\n'
+            expected += "\n\n"
+            orig_final_index = cur_index
+            cur_index = orig_index
+            for m in range(1, 4):
+                expected += 'MONTH=%02d\n' % m
+                expected += '\n'.join(
+                    map(lambda i: "Post %02d" % i,
+                        range(cur_index,
+                              min(cur_index + 2, orig_index + 5)))) + '\n'
+                expected += '\n'
+                cur_index += 2
+            cur_index = orig_final_index
+
+            actual = fs.getFileEntry('counter/archives/%04d.html' % y)
+            assert expected == actual
+            cur_index += 5
+
+
+def test_blog_provider_tags():
+    fs = (mock_fs()
+          .withConfig()
+          .withPage('posts/2015-03-01_one.md',
+                    {'title': 'One', 'tags': ['Foo']})
+          .withPage('posts/2015-03-02_two.md',
+                    {'title': 'Two', 'tags': ['Foo']})
+          .withPage('posts/2015-03-03_three.md',
+                    {'title': 'Three', 'tags': ['Bar']})
+          .withPage('pages/tags.md',
+                    {'format': 'none', 'layout': 'none'},
+                    "{%for c in blog.tags%}\n"
+                    "{{c.name}} ({{c.post_count}})\n"
+                    "{%endfor%}\n"))
+    with mock_fs_scope(fs):
+        page = fs.getSimplePage('tags.md')
+        actual = render_simple_page(page)
+        expected = "\nBar (1)\n\nFoo (2)\n"
+        assert actual == expected
+