tests: add tests of webpack module

* Adds test of WebpackThemeBundle, UniqueJinjaManifestEntry, and
  UniqueJinjaManifestLoader.

invenio_assets/collect.py

@@ -8,6 +8,7 @@
 
 """Media asset management for Invenio."""
 
+
 def collect_staticroot_removal(app, blueprints):
     """Remove collect's static root folder from list."""
     collect_root = app.extensions['collect'].static_root

invenio_assets/webpack.py

@@ -95,6 +95,8 @@ def __html__(self):
         for p in self._paths:
             _, ext = os.path.splitext(p.lower())
             # If we haven't come across the chunk yet, we add it to the output
+            if ext not in request._jinja_webpack_entries:
+                raise UnsupportedExtensionError(p)
             if p not in request._jinja_webpack_entries[ext]:
                 tpl = self.templates.get(ext)
                 if tpl is None:

tests/test_invenio_assets.py

@@ -9,10 +9,11 @@
 
 """Test Invenio Assets module."""
 
-from invenio_assets import InvenioAssets
 from mock import patch
 from pywebpack.storage import FileStorage, LinkStorage
 
+from invenio_assets import InvenioAssets
+
 
 def test_version():
     """Test version import."""

tests/test_webpack.py

@@ -0,0 +1,87 @@
+# -*- coding: utf-8 -*-
+#
+# This file is part of Invenio.
+# Copyright (C) 2020 CERN.
+#
+# Invenio is free software; you can redistribute it and/or modify it
+# under the terms of the MIT License; see LICENSE file for more details.
+
+"""Test Webpack module."""
+
+import pytest
+from flask_webpackext import WebpackBundle
+from pywebpack import UnsupportedExtensionError
+
+from invenio_assets.webpack import UniqueJinjaManifestEntry, \
+    UniqueJinjaManifestLoader, WebpackThemeBundle
+
+
+def test_webpack_theme_bundle(app):
+    """Test WebpackThemeBundle."""
+    themes = {
+        'bootstrap3': dict(
+            entry={
+                'theme': './theme-bootstrap3.css',
+            }
+        ),
+        'semanticui': dict(
+            entry={
+                'theme': './theme-semanticui.css',
+            }
+        ),
+    }
+
+    # Test that bundles are created for each theme.
+    bundle = WebpackThemeBundle(
+        'tests', 'assets', default='semanticui', themes=themes)
+    assert isinstance(bundle.themes['bootstrap3'], WebpackBundle)
+    assert isinstance(bundle.themes['semanticui'], WebpackBundle)
+
+    # Test that default theme is used.
+    with app.app_context():
+        assert bundle._active_theme_bundle == bundle.themes['semanticui']
+        assert bundle.path == bundle.themes['semanticui'].path
+        assert bundle.entry == bundle.themes['semanticui'].entry
+        assert bundle.dependencies == bundle.themes['semanticui'].dependencies
+
+    # Test that APP_THEME overrides default theme.
+    app.config['APP_THEME'] = ['bootstrap3']
+    with app.app_context():
+        assert bundle._active_theme_bundle == bundle.themes['bootstrap3']
+        assert bundle.path == bundle.themes['bootstrap3'].path
+        assert bundle.entry == bundle.themes['bootstrap3'].entry
+        assert bundle.dependencies == bundle.themes['bootstrap3'].dependencies
+
+    # Test that an invalid APP_THEME
+    app.config['APP_THEME'] = ['invalid']
+    with app.app_context():
+        assert bundle._active_theme_bundle is None
+
+
+def test_unique_jinja_manifest_entry(app):
+    """Test UniqueJinjaManifestEntry."""
+    # b.js is only output once, despite being twice in manifest
+    m = UniqueJinjaManifestEntry('manifestname', ['/a.js', '/b.js', '/b.js'])
+    with app.test_request_context():
+        assert m.__html__() == \
+            '<script src="/a.js"></script>\n' \
+            '<script src="/b.js"></script>'
+
+    # b.js is only output once, despite being twice in manifest
+    app.debug = True
+    with app.test_request_context():
+        assert m.__html__() == \
+            '<!-- manifestname -->\n' \
+            '<script src="/a.js"></script>\n' \
+            '<script src="/b.js"></script>'
+
+    # Unsupported file extension
+    m = UniqueJinjaManifestEntry('script', ['/a.less'])
+    with app.test_request_context():
+        pytest.raises(UnsupportedExtensionError, m.__html__)
+
+
+def test_unique_jinja_manifest_loader(app):
+    """Test UniqueJinjaManifestLoader."""
+    loader = UniqueJinjaManifestLoader()
+    assert loader.entry_cls == UniqueJinjaManifestEntry