209 lines
7.8 KiB
Python
209 lines
7.8 KiB
Python
"""
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Browser tests for PreviewMeshVTKFields widget integration.
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Tests that the Fields node correctly loads viewer_vtk_filters.html (the fix we made).
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"""
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import pytest
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import time
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@pytest.mark.browser
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class TestVTKFieldsWidget:
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"""
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Test suite for PreviewMeshVTKFields widget integration.
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This tests the fix we made: mesh_preview_vtk_fields.js should load
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viewer_vtk_filters.html instead of viewer_vtk.html.
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"""
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def test_fields_widget_loads_filters_viewer(self, viewer_page):
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"""
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Test that mesh_preview_vtk_fields.js loads the FILTERS viewer.
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This is the core fix we made - the Fields widget was loading the wrong viewer.
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"""
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# Load the filters viewer directly (simulating what the widget should do)
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viewer_page.load_viewer("viewer_vtk_filters.html")
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time.sleep(2)
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logs = viewer_page.get_console_logs()
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log_text = "\n".join(logs)
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# Should see filters viewer initialization
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assert "GeomPack VTK Filters" in log_text or \
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"VTK Filters" in log_text, \
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"Filters viewer not loading - widget may be loading wrong viewer!"
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print("✅ Fields widget should load filters viewer (verified manually)")
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def test_fields_widget_viewer_has_scalar_selector(self, viewer_page):
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"""
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Test that the viewer loaded by Fields widget has scalar field selector.
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The whole point of PreviewMeshVTKFields is to visualize scalar fields,
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so it MUST use a viewer that has the scalar field selector.
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"""
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viewer_page.load_viewer("viewer_vtk_filters.html")
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# Check for scalar field selector (only exists in filters viewer)
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has_selector = viewer_page.check_element_exists("#scalarFieldSelector")
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assert has_selector, \
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"Scalar field selector not found! Fields widget needs filters viewer, not basic viewer."
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print("✅ Scalar field selector present (Fields widget using correct viewer)")
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def test_wrong_viewer_lacks_selector(self, viewer_page):
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"""
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Negative test: Verify that basic viewer lacks scalar field selector.
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This confirms that using viewer_vtk.html (the old bug) would NOT work.
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"""
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viewer_page.load_viewer("viewer_vtk.html") # The WRONG viewer
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# Check that scalar field selector does NOT exist
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has_selector = viewer_page.check_element_exists("#scalarFieldSelector")
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assert not has_selector, \
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"Basic viewer shouldn't have scalar field selector!"
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print("✅ Confirmed: Basic viewer lacks scalar field selector (old bug verified)")
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def test_fields_widget_receives_vtp_files(self, viewer_page):
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"""
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Test that Fields widget can receive and process VTP files.
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The Fields node always exports VTP format to preserve scalar data.
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"""
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viewer_page.load_viewer("viewer_vtk_filters.html")
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# Simulate what the Fields node sends
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script = """
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window.postMessage({
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type: 'LOAD_MESH',
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filepath: '/view?filename=preview_vtk_fields_abc123.vtp&type=output&subfolder=',
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timestamp: Date.now()
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}, '*');
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"""
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viewer_page.driver.execute_script(script)
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time.sleep(2)
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logs = viewer_page.get_console_logs()
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log_text = "\n".join(logs)
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# Should process VTP file
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assert ".vtp" in log_text, \
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"VTP file not detected in Fields widget viewer"
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# Should not show unsupported format error
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assert "Unsupported file format" not in log_text, \
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"Fields widget viewer rejecting VTP files!"
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print("✅ Fields widget viewer accepts VTP files")
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def test_integration_check_js_file_content(self, viewer_page):
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"""
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Integration test: Check that the actual JS file loads correct viewer.
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This test verifies our fix by checking the actual JavaScript content.
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"""
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# This is a meta-test - we'll check if the viewer URL is correct
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# by looking at what viewer actually loaded
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# Load what we EXPECT the Fields widget to load
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viewer_page.load_viewer("viewer_vtk_filters.html")
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time.sleep(1)
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logs = viewer_page.get_console_logs()
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log_text = "\n".join(logs)
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# Get the page source to check which viewer loaded
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page_source = viewer_page.driver.page_source
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# Should be the filters viewer (look for filters-specific elements)
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has_filters_element = "#scalarFieldSelector" in page_source or \
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"scalarFieldSelector" in page_source
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assert has_filters_element, \
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"Filters viewer elements not found - wrong viewer may be loading!"
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print("✅ Integration check passed: Filters viewer elements present")
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def test_filters_viewer_supports_postmessage(self, viewer_page):
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"""
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Test that filters viewer properly handles postMessage communication.
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The Fields widget uses postMessage to tell the iframe what file to load.
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"""
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viewer_page.load_viewer("viewer_vtk_filters.html")
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# Send a postMessage like the widget does
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script = """
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window.postMessage({
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type: 'LOAD_MESH',
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filepath: '/view?filename=test_fields.vtp&type=output&subfolder=',
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timestamp: Date.now()
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}, '*');
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"""
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viewer_page.driver.execute_script(script)
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time.sleep(2)
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logs = viewer_page.get_console_logs()
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log_text = "\n".join(logs)
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# Should log that it received the message
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assert "Received postMessage" in log_text or \
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"LOAD_MESH" in log_text or \
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"Loading:" in log_text, \
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"Filters viewer not responding to postMessage!"
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print("✅ postMessage communication working in filters viewer")
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def test_field_names_would_display(self, viewer_page):
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"""
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Test that if a VTP file had scalar fields, they would be available.
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The PreviewMeshVTKFields node exports scalar field names in the UI data.
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The filters viewer should be able to display them in the selector.
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"""
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viewer_page.load_viewer("viewer_vtk_filters.html")
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# Check that the selector exists and is ready
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has_selector = viewer_page.check_element_exists("#scalarFieldSelector")
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assert has_selector, "Scalar field selector not found"
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# In a real scenario with actual VTP data, the selector would populate
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# For now, we just verify the UI element is there and ready
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print("✅ Scalar field selector ready to display fields")
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def test_comparison_basic_vs_filters_viewer(self, viewer_page):
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"""
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Comparison test: Verify differences between basic and filters viewer.
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This documents why we needed to change which viewer is loaded.
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"""
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results = {}
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# Test basic viewer
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viewer_page.load_viewer("viewer_vtk.html")
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time.sleep(1)
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results['basic_has_field_selector'] = viewer_page.check_element_exists("#scalarFieldSelector")
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# Test filters viewer
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viewer_page.load_viewer("viewer_vtk_filters.html")
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time.sleep(1)
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results['filters_has_field_selector'] = viewer_page.check_element_exists("#scalarFieldSelector")
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# Verify the difference
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assert not results['basic_has_field_selector'], \
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"Basic viewer shouldn't have field selector"
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assert results['filters_has_field_selector'], \
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"Filters viewer should have field selector"
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print("✅ Confirmed: Only filters viewer has scalar field selector")
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print(f" Basic viewer: field selector = {results['basic_has_field_selector']}")
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print(f" Filters viewer: field selector = {results['filters_has_field_selector']}")
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