moved mardkown stuff into separate module

tests/test_markdown.py

@@ -0,0 +1,48 @@
+from datetime import datetime
+
+import pytest
+import markdown
+
+from sg.markdown import convert_markdown, markdown_factory
+
+
+@pytest.mark.parametrize("input_, expected", [
+    # inline
+    ('[test](test.md)', 'test.html'),
+    ('[test](test.md "test")', 'test.html'),
+    ('[test](a/test.md)', 'a/test.html'),
+    ('[test](a/test.md "test")', 'a/test.html'),
+    ('[test](/test.md)', '/test.html'),
+    ('[test](/test.md "test")', '/test.html'),
+    ('[test](/a/test.md)', '/a/test.html'),
+    ('[test](/a/test.md "test")', '/a/test.html'),
+    # reference
+    ('[test][]\n[test]: test.md ''', 'test.html'),
+    ('[test][]\n[test]: test.md "test"', 'test.html'),
+    ('[test][]\n[test]: a/test.md', 'a/test.html'),
+    ('[test][]\n[test]: a/test.md "test"', 'a/test.html'),
+    ('[test][]\n[test]: /test.md', '/test.html'),
+    ('[test][]\n[test]: /test.md "test"', '/test.html'),
+    ('[test][]\n[test]: /a/test.md', '/a/test.html'),
+    ('[test][]\n[test]: /a/test.md "test"', '/a/test.html'),
+])
+def test_convert_markdown_links(input_, expected):
+    md = markdown_factory()
+    html, _ = convert_markdown(md, input_)
+    assert expected in html
+
+
+@pytest.mark.parametrize("input_, expected", [
+    ('foo: bar', {'foo': 'bar'}),
+    ('tags: this, is, a, test\n', {'tags': ['this', 'is', 'a', 'test']}),
+    ('date: 2020-01-01 12:10', {'date': datetime(2020, 1, 1, 12, 10)}),
+])
+def test_convert_metadata(input_, expected):
+    md = markdown_factory()
+    _, meta = convert_markdown(md, input_)
+    assert expected == meta
+
+
+def test_markdown_factory():
+    md = markdown_factory()
+    assert isinstance(md, markdown.Markdown)