test(api): Add some absorbance reader integration tests (#16740)

api/tests/opentrons/protocol_api_integration/test_modules.py

@@ -0,0 +1,68 @@
+"""Tests for modules."""
+
+import typing
+import pytest
+
+from opentrons import simulate, protocol_api
+
+
+def test_absorbance_reader_labware_load_conflict() -> None:
+    """It should prevent loading a labware onto a closed absorbance reader."""
+    protocol = simulate.get_protocol_api(version="2.21", robot_type="Flex")
+    module = protocol.load_module("absorbanceReaderV1", "A3")
+
+    # The lid should be treated as initially closed.
+    with pytest.raises(Exception):
+        module.load_labware("opentrons_96_wellplate_200ul_pcr_full_skirt")
+
+    module.open_lid()  # type: ignore[union-attr]
+    # Should not raise after opening the lid.
+    labware_1 = module.load_labware("opentrons_96_wellplate_200ul_pcr_full_skirt")
+
+    protocol.move_labware(labware_1, protocol_api.OFF_DECK)
+
+    # Should raise after closing the lid again.
+    module.close_lid()  # type: ignore[union-attr]
+    module.load_labware("opentrons_96_wellplate_200ul_pcr_full_skirt")
+
+
+def test_absorbance_reader_labware_move_conflict() -> None:
+    """It should prevent moving a labware onto a closed absorbance reader."""
+    protocol = simulate.get_protocol_api(version="2.21", robot_type="Flex")
+    module = protocol.load_module("absorbanceReaderV1", "A3")
+    labware = protocol.load_labware("opentrons_96_wellplate_200ul_pcr_full_skirt", "A1")
+
+    with pytest.raises(Exception):
+        # The lid should be treated as initially closed.
+        protocol.move_labware(labware, module, use_gripper=True)
+
+    module.open_lid()  # type: ignore[union-attr]
+    # Should not raise after opening the lid.
+    protocol.move_labware(labware, module, use_gripper=True)
+
+    protocol.move_labware(labware, "A1", use_gripper=True)
+
+    # Should raise after closing the lid again.
+    module.close_lid()  # type: ignore[union-attr]
+    with pytest.raises(Exception):
+        protocol.move_labware(labware, module, use_gripper=True)
+
+
+def test_absorbance_reader_read_preconditions() -> None:
+    """Test the preconditions for triggering an absorbance reader read."""
+    protocol = simulate.get_protocol_api(version="2.21", robot_type="Flex")
+    module = typing.cast(
+        protocol_api.AbsorbanceReaderContext,
+        protocol.load_module("absorbanceReaderV1", "A3"),
+    )
+
+    with pytest.raises(Exception, match="initialize"):
+        module.read()  # .initialize() must be called first.
+
+    with pytest.raises(Exception, match="close"):
+        module.initialize("single", [500])  # .close_lid() must be called first.
+
+    module.close_lid()
+    module.initialize("single", [500])
+
+    module.read()  # Should not raise now.