move tests to plugin folder

assets/test_assets.py

@@ -0,0 +1,145 @@
+# -*- coding: utf-8 -*-
+# from __future__ import unicode_literals
+
+import hashlib
+import locale
+import os
+from codecs import open
+from tempfile import mkdtemp
+from shutil import rmtree
+import unittest
+import subprocess
+
+from pelican import Pelican
+from pelican.settings import read_settings
+
+import pytest
+
+assets = pytest.importorskip("assets")
+
+CUR_DIR = os.path.dirname(__file__)
+THEME_DIR = os.path.join(CUR_DIR, 'test_data')
+CSS_REF = open(os.path.join(THEME_DIR, 'static', 'css',
+                            'style.min.css')).read()
+CSS_HASH = hashlib.md5(CSS_REF).hexdigest()[0:8]
+
+
+def skipIfNoExecutable(executable):
+    """Skip test if `executable` is not found
+
+    Tries to run `executable` with subprocess to make sure it's in the path,
+    and skips the tests if not found (if subprocess raises a `OSError`).
+    """
+
+    with open(os.devnull, 'w') as fnull:
+        try:
+            res = subprocess.call(executable, stdout=fnull, stderr=fnull)
+        except OSError:
+            res = None
+
+    if res is None:
+        return unittest.skip('{0} executable not found'.format(executable))
+
+    return lambda func: func
+
+
+def module_exists(module_name):
+    """Test if a module is importable."""
+
+    try:
+        __import__(module_name)
+    except ImportError:
+        return False
+    else:
+        return True
+
+
+
+@unittest.skipUnless(module_exists('webassets'), "webassets isn't installed")
+@skipIfNoExecutable(['scss', '-v'])
+@skipIfNoExecutable(['cssmin', '--version'])
+class TestWebAssets(unittest.TestCase):
+    """Base class for testing webassets."""
+
+    def setUp(self, override=None):
+        
+        self.temp_path = mkdtemp(prefix='pelicantests.')
+        settings = {
+            'PATH': os.path.join(os.path.dirname(CUR_DIR), 'tests', 'content'),
+            'OUTPUT_PATH': self.temp_path,
+            'PLUGINS': [assets],
+            'THEME': THEME_DIR,
+            'LOCALE': locale.normalize('en_US'),
+        }
+        if override:
+            settings.update(override)
+
+        self.settings = read_settings(override=settings)
+        pelican = Pelican(settings=self.settings)
+        pelican.run()
+
+    def tearDown(self):
+        rmtree(self.temp_path)
+
+    def check_link_tag(self, css_file, html_file):
+        """Check the presence of `css_file` in `html_file`."""
+
+        link_tag = ('<link rel="stylesheet" href="{css_file}">'
+                    .format(css_file=css_file))
+        html = open(html_file).read()
+        self.assertRegexpMatches(html, link_tag)
+
+
+class TestWebAssetsRelativeURLS(TestWebAssets):
+    """Test pelican with relative urls."""
+
+
+    def setUp(self):
+        TestWebAssets.setUp(self, override={'RELATIVE_URLS': True})
+
+    def test_jinja2_ext(self):
+        # Test that the Jinja2 extension was correctly added.
+
+        from webassets.ext.jinja2 import AssetsExtension
+        self.assertIn(AssetsExtension, self.settings['JINJA_EXTENSIONS'])
+
+    def test_compilation(self):
+        # Compare the compiled css with the reference.
+
+        gen_file = os.path.join(self.temp_path, 'theme', 'gen',
+                                'style.{0}.min.css'.format(CSS_HASH))
+        self.assertTrue(os.path.isfile(gen_file))
+
+        css_new = open(gen_file).read()
+        self.assertEqual(css_new, CSS_REF)
+
+    def test_template(self):
+        # Look in the output files for the link tag.
+
+        css_file = './theme/gen/style.{0}.min.css'.format(CSS_HASH)
+        html_files = ['index.html', 'archives.html',
+                      'this-is-a-super-article.html']
+        for f in html_files:
+            self.check_link_tag(css_file, os.path.join(self.temp_path, f))
+
+        self.check_link_tag(
+            '../theme/gen/style.{0}.min.css'.format(CSS_HASH),
+            os.path.join(self.temp_path, 'category/yeah.html'))
+
+
+class TestWebAssetsAbsoluteURLS(TestWebAssets):
+    """Test pelican with absolute urls."""
+
+    def setUp(self):
+        TestWebAssets.setUp(self, override={'RELATIVE_URLS': False,
+                                            'SITEURL': 'http://localhost'})
+
+    def test_absolute_url(self):
+        # Look in the output files for the link tag with absolute url.
+
+        css_file = ('http://localhost/theme/gen/style.{0}.min.css'
+                    .format(CSS_HASH))
+        html_files = ['index.html', 'archives.html',
+                      'this-is-a-super-article.html']
+        for f in html_files:
+            self.check_link_tag(css_file, os.path.join(self.temp_path, f))