Search results open the record they found; plugin scaffolder emits a prunable frontend
This commit is contained in:
@@ -1,16 +1,21 @@
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"""Canary tests for the plugin scaffolder's frontend generation.
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`flask plugin new <name>` generates the backend skeleton and, when a frontend
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tree is present, a matching Vue frontend starting point: list, detail, and form
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views, a router route file, and a paste-in api-client snippet. These tests
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guard the file names, the substitutions, the ADR-009 plugin gating on the
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routes, the use of global CSS classes over per-page input styling, graceful
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skipping when there is no frontend tree, and the no-clobber behaviour.
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`flask plugin new <name>` generates the backend skeleton and a matching Vue
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frontend starting point: list, detail, and form views, a route file, and a
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paste-in api-client snippet. All of it lands INSIDE the plugin, under
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`plugins/<name>/frontend/`, which is what lets stage-frontend.mjs stage it and
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a lean build prune it (ADR-013).
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These tests guard the file names and their location, the substitutions, the
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ADR-009 plugin gating on the routes, the alias-vs-relative import split that
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has to survive staging, the use of global CSS classes over per-page input
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styling, and the no-clobber behaviour.
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All generation runs against tmp_path. The real frontend/src tree is never
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touched.
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"""
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import re
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from pathlib import Path
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import pytest
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@@ -18,178 +23,172 @@ import pytest
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from shopdb.plugins.scaffolder import scaffold_plugin, ScaffoldError
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def _make_dirs(tmp_path: Path):
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"""Create a tmp plugins dir and a tmp frontend/src tree.
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Returns (plugins_dir, frontend_dir).
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"""
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def _make_plugins_dir(tmp_path: Path) -> Path:
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"""Create a tmp plugins dir."""
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plugins_dir = tmp_path / 'plugins'
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plugins_dir.mkdir()
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frontend_dir = tmp_path / 'frontend' / 'src'
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frontend_dir.mkdir(parents=True)
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return plugins_dir, frontend_dir
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return plugins_dir
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def test_frontend_files_generated_with_correct_names(tmp_path):
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"""Views, route file, and api snippet appear with the expected names."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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def test_frontend_files_generated_inside_the_plugin(tmp_path):
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"""Views, route file, and api snippet appear with the expected names.
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Location is the point of the test: the frontend belongs to the plugin, not
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to the core tree.
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"""
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin(
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name='widgets',
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description='Test widgets plugin',
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plugins_dir=plugins_dir,
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frontend_dir=frontend_dir,
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)
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assert (frontend_dir / 'views' / 'widgets' / 'WidgetsList.vue').exists()
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assert (frontend_dir / 'views' / 'widgets' / 'WidgetsDetail.vue').exists()
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assert (frontend_dir / 'views' / 'widgets' / 'WidgetsForm.vue').exists()
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assert (frontend_dir / 'router' / 'routes' / 'widgets.js').exists()
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# paste-in snippet lands in the plugin dir, not the frontend tree
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assert (target / 'frontend' / 'views' / 'WidgetsList.vue').exists()
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assert (target / 'frontend' / 'views' / 'WidgetsDetail.vue').exists()
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assert (target / 'frontend' / 'views' / 'WidgetsForm.vue').exists()
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assert (target / 'frontend' / 'routes.js').exists()
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assert (target / 'frontend-api-snippet.js').exists()
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def test_nothing_is_written_into_the_core_frontend_tree(tmp_path):
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"""The scaffolder never touches frontend/src.
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This is the regression that prompted the move. Writing views to
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`frontend/src/views/<name>/` and a route to
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`frontend/src/router/routes/<name>.js` still *renders* - the router globs
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that directory - but the result is invisible to stage-frontend.mjs, so the
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plugin cannot be pruned from a lean build and deleting it strands its
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views in the core tree.
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"""
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plugins_dir = _make_plugins_dir(tmp_path)
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core_frontend = tmp_path / 'frontend' / 'src'
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core_frontend.mkdir(parents=True)
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scaffold_plugin('widgets', 'Test', plugins_dir)
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assert not (core_frontend / 'views' / 'widgets').exists()
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assert not (core_frontend / 'router' / 'routes' / 'widgets.js').exists()
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assert list(core_frontend.iterdir()) == []
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def test_frontend_generated_with_no_core_tree_at_all(tmp_path):
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"""A plugin developed in its own repo gets the same frontend.
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There is no core frontend tree to depend on, and none is fabricated. The
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plugin's frontend starts working the moment the directory is dropped into
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a host repo's `plugins/`.
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"""
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin('widgets', 'Test', plugins_dir)
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assert (target / 'frontend' / 'routes.js').exists()
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assert (target / 'frontend' / 'views' / 'WidgetsList.vue').exists()
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assert not (tmp_path / 'frontend').exists()
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def test_frontend_substitutions_applied(tmp_path):
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"""Name and Name placeholders are substituted, none left raw."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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scaffold_plugin('widgets', 'Test', plugins_dir, frontend_dir=frontend_dir)
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"""Name and Name substitutions land in the route file and the views."""
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin('widgets', 'Test', plugins_dir)
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route = (frontend_dir / 'router' / 'routes' / 'widgets.js').read_text()
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assert "import('../../views/widgets/WidgetsList.vue')" in route
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assert "import('../../views/widgets/WidgetsForm.vue')" in route
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assert "import('../../views/widgets/WidgetsDetail.vue')" in route
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route = (target / 'frontend' / 'routes.js').read_text()
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assert "import('./views/WidgetsList.vue')" in route
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assert "import('./views/WidgetsForm.vue')" in route
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assert "import('./views/WidgetsDetail.vue')" in route
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list_view = (frontend_dir / 'views' / 'widgets' / 'WidgetsList.vue').read_text()
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list_view = (target / 'frontend' / 'views' / 'WidgetsList.vue').read_text()
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assert 'widgetsApi' in list_view
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assert "api.get('/widgets'" in list_view
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# no unresolved template placeholders for our known substitution keys
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# No unresolved placeholders for our known substitution keys. Checked by
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# key, not for a bare '${': the views carry real JS template literals
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# (`/widgets/${item.assetid}`) that must survive.
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assert '${name}' not in list_view
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assert '${Name}' not in list_view
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def test_route_file_has_plugin_gating_and_requiresauth(tmp_path):
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"""Every route carries meta.plugin; form routes add requiresAuth."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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scaffold_plugin('widgets', 'Test', plugins_dir, frontend_dir=frontend_dir)
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"""ADR-009 gating on every route; requiresAuth on the form routes."""
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin('widgets', 'Test', plugins_dir)
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route = (frontend_dir / 'router' / 'routes' / 'widgets.js').read_text()
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# ADR-009 gating on every route
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route = (target / 'frontend' / 'routes.js').read_text()
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# every route is gated on the plugin being enabled
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assert route.count("plugin: 'widgets'") == 4
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# form routes (new + edit) require auth; list + detail do not
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# create and edit are behind auth
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assert route.count('requiresAuth: true') == 2
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assert "path: 'widgets/new'" in route
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assert "path: 'widgets/:id/edit'" in route
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def test_route_file_exports_toplevel(tmp_path):
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"""`toplevel` is exported even when empty.
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routes.gen.js reads `.toplevel` off every staged route module; a module
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without the export is a Rollup warning under strict ESM.
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"""
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin('widgets', 'Test', plugins_dir)
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route = (target / 'frontend' / 'routes.js').read_text()
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assert 'export const toplevel' in route
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def test_view_imports_survive_staging(tmp_path):
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"""Core imports use the @ alias; sibling views are relative.
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stage-frontend.mjs copies `plugins/<name>/frontend/` to
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`frontend/src/.plugins-staged/<name>/`, so a `../../api` written for the
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old location resolves somewhere else entirely once staged. `@/api` is
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correct in both places, and `./views/...` travels with the route file.
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"""
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin('widgets', 'Test', plugins_dir)
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views = target / 'frontend' / 'views'
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for view in views.iterdir():
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text = view.read_text()
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assert '../../api' not in text
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assert '../../components' not in text
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assert '../../stores' not in text
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route = (target / 'frontend' / 'routes.js').read_text()
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assert './views/' in route
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assert '../../views' not in route
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def test_views_use_global_classes_not_custom_input_css(tmp_path):
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"""Views lean on global .filters / .form-control / .card classes and never
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redefine input styling in a scoped block."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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scaffold_plugin('widgets', 'Test', plugins_dir, frontend_dir=frontend_dir)
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"""Views lean on the global form/filter styles, not per-page input CSS."""
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin('widgets', 'Test', plugins_dir)
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views = frontend_dir / 'views' / 'widgets'
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views = target / 'frontend' / 'views'
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list_view = (views / 'WidgetsList.vue').read_text()
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form_view = (views / 'WidgetsForm.vue').read_text()
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assert 'class="filters"' in list_view
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assert 'class="form-control"' in list_view
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assert 'class="card"' in list_view
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assert 'class="form-control"' in form_view
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assert 'form-control' in form_view
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# per-page input styling is forbidden: no scoped rule targets .form-control
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# on its own (a descendant layout helper like `.filters .form-control` is ok)
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import re
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for view in (list_view, form_view):
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assert not re.search(r'(?m)^\s*\.form-control\s*\{', view)
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def test_default_frontend_dir_resolves_relative_to_plugins(tmp_path):
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"""With no frontend_dir arg, views land in <plugins_dir>/../frontend/src."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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scaffold_plugin('widgets', 'Test', plugins_dir)
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assert (frontend_dir / 'views' / 'widgets' / 'WidgetsList.vue').exists()
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assert (frontend_dir / 'router' / 'routes' / 'widgets.js').exists()
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def test_skip_when_no_frontend_dir(tmp_path):
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"""No frontend tree: views and route are skipped, backend still generated.
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The api snippet is still emitted because it is a plugin-directory artifact.
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"""
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plugins_dir = tmp_path / 'plugins'
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plugins_dir.mkdir()
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missing_frontend = tmp_path / 'nowhere' / 'src'
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target = scaffold_plugin(
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name='widgets',
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description='Test',
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plugins_dir=plugins_dir,
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frontend_dir=missing_frontend,
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)
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# backend skeleton is intact
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assert (target / 'manifest.json').exists()
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assert (target / 'plugin.py').exists()
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# frontend views and route were skipped
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assert not missing_frontend.exists()
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# snippet still lands in the plugin dir
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assert (target / 'frontend-api-snippet.js').exists()
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def test_frontend_can_be_disabled(tmp_path):
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"""frontend=False generates neither views, route, nor snippet."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin(
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name='widgets',
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description='Test',
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plugins_dir=plugins_dir,
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frontend_dir=frontend_dir,
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frontend=False,
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)
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assert not (frontend_dir / 'views' / 'widgets').exists()
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assert not (frontend_dir / 'router' / 'routes' / 'widgets.js').exists()
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assert not (target / 'frontend').exists()
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assert not (target / 'frontend-api-snippet.js').exists()
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def test_no_clobber_without_overwrite(tmp_path):
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"""An existing frontend view is left untouched unless overwrite is set."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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# author already hand-edited a view before re-scaffolding
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views_dir = frontend_dir / 'views' / 'widgets'
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views_dir.mkdir(parents=True)
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existing = views_dir / 'WidgetsList.vue'
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existing.write_text('SENTINEL do not clobber')
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scaffold_plugin('widgets', 'Test', plugins_dir, frontend_dir=frontend_dir)
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# untouched without overwrite
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assert existing.read_text() == 'SENTINEL do not clobber'
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def test_overwrite_replaces_existing_frontend(tmp_path):
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"""overwrite=True regenerates an existing frontend view."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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views_dir = frontend_dir / 'views' / 'widgets'
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views_dir.mkdir(parents=True)
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existing = views_dir / 'WidgetsList.vue'
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existing.write_text('SENTINEL do not clobber')
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# plugin dir must also exist to reach overwrite path
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scaffold_plugin('widgets', 'Test', plugins_dir, frontend_dir=frontend_dir)
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scaffold_plugin(
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'widgets', 'Test', plugins_dir,
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frontend_dir=frontend_dir, overwrite=True,
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)
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assert existing.read_text() != 'SENTINEL do not clobber'
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assert 'widgetsApi' in existing.read_text()
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# backend skeleton is still intact
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assert (target / 'manifest.json').exists()
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assert (target / 'plugin.py').exists()
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def test_route_references_only_existing_views(tmp_path):
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@@ -198,55 +197,54 @@ def test_route_references_only_existing_views(tmp_path):
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Guards the write-views-before-route ordering: a route pointing at a missing
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view crashes the Vite dev server.
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"""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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scaffold_plugin('widgets', 'Test', plugins_dir, frontend_dir=frontend_dir)
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin('widgets', 'Test', plugins_dir)
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route = (frontend_dir / 'router' / 'routes' / 'widgets.js').read_text()
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import re
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imported = re.findall(r"import\('(\.\./\.\./views/[^']+)'\)", route)
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route_dir = target / 'frontend'
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route = (route_dir / 'routes.js').read_text()
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imported = re.findall(r"import\('(\./views/[^']+)'\)", route)
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assert imported
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for rel in imported:
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# rel is relative to router/routes/; resolve against that dir
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resolved = (frontend_dir / 'router' / 'routes' / rel).resolve()
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assert resolved.exists(), f'route imports missing view: {rel}'
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# rel is relative to the route file, which sits at frontend/routes.js
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assert (route_dir / rel).resolve().exists(), \
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f'route imports missing view: {rel}'
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def test_generated_frontend_is_ascii(tmp_path):
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"""Generated frontend files contain plain ASCII only."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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target = scaffold_plugin(
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'widgets', 'Test', plugins_dir, frontend_dir=frontend_dir,
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)
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin('widgets', 'Test', plugins_dir)
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generated = [
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frontend_dir / 'views' / 'widgets' / 'WidgetsList.vue',
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frontend_dir / 'views' / 'widgets' / 'WidgetsDetail.vue',
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frontend_dir / 'views' / 'widgets' / 'WidgetsForm.vue',
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frontend_dir / 'router' / 'routes' / 'widgets.js',
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target / 'frontend' / 'views' / 'WidgetsList.vue',
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target / 'frontend' / 'views' / 'WidgetsDetail.vue',
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target / 'frontend' / 'views' / 'WidgetsForm.vue',
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target / 'frontend' / 'routes.js',
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target / 'frontend-api-snippet.js',
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]
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for path in generated:
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text = path.read_text()
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text.encode('ascii') # raises if any non-ASCII slipped in
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def test_frontend_dir_not_created_when_absent(tmp_path):
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"""Scaffolder does not fabricate a frontend tree that was not there."""
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plugins_dir = tmp_path / 'plugins'
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plugins_dir.mkdir()
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# no frontend dir exists; default resolves to <tmp>/frontend/src (absent)
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scaffold_plugin('widgets', 'Test', plugins_dir)
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assert not (tmp_path / 'frontend').exists()
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path.read_text().encode('ascii') # raises if any non-ASCII slipped in
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def test_scaffold_still_raises_on_existing_plugin(tmp_path):
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"""Frontend generation does not weaken the plugin-dir overwrite guard."""
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plugins_dir, frontend_dir = _make_dirs(tmp_path)
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scaffold_plugin('widgets', 'first', plugins_dir, frontend_dir=frontend_dir)
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plugins_dir = _make_plugins_dir(tmp_path)
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scaffold_plugin('widgets', 'first', plugins_dir)
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with pytest.raises(ScaffoldError, match='already exists'):
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scaffold_plugin(
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'widgets', 'second', plugins_dir, frontend_dir=frontend_dir,
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)
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scaffold_plugin('widgets', 'second', plugins_dir)
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def test_overwrite_replaces_existing_frontend(tmp_path):
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"""--overwrite regenerates the plugin's frontend files."""
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plugins_dir = _make_plugins_dir(tmp_path)
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target = scaffold_plugin('widgets', 'Test', plugins_dir)
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list_view = target / 'frontend' / 'views' / 'WidgetsList.vue'
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list_view.write_text('CLOBBER ME')
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scaffold_plugin('widgets', 'Test', plugins_dir, overwrite=True)
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regenerated = list_view.read_text()
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assert regenerated != 'CLOBBER ME'
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assert 'widgetsApi' in regenerated
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