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https://github.com/Unstructured-IO/unstructured.git
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cb55245f70
**Summary** File-types other than PDF need to use OCR on extracted images. Extract `OCRAgent.get_agent()` such that any file-type partitioner can use it without risking dependency on PDF-only extras.
95 lines
3.4 KiB
Python
95 lines
3.4 KiB
Python
# pyright: reportPrivateUsage=false
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"""Unit-test suite for the `unstructured.partition.utils.ocr_models.ocr_interface` module."""
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from __future__ import annotations
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import pytest
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from test_unstructured.unit_utils import (
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FixtureRequest,
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LogCaptureFixture,
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Mock,
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instance_mock,
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method_mock,
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property_mock,
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)
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from unstructured.partition.utils.config import ENVConfig
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from unstructured.partition.utils.constants import (
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OCR_AGENT_PADDLE,
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OCR_AGENT_PADDLE_OLD,
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OCR_AGENT_TESSERACT,
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OCR_AGENT_TESSERACT_OLD,
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)
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from unstructured.partition.utils.ocr_models.ocr_interface import OCRAgent
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class DescribeOCRAgent:
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"""Unit-test suite for `unstructured.partition.utils...ocr_interface.OCRAgent` class."""
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def it_provides_access_to_the_configured_OCR_agent(
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self, _get_ocr_agent_cls_qname_: Mock, get_instance_: Mock, ocr_agent_: Mock
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):
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_get_ocr_agent_cls_qname_.return_value = OCR_AGENT_TESSERACT
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get_instance_.return_value = ocr_agent_
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ocr_agent = OCRAgent.get_agent()
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_get_ocr_agent_cls_qname_.assert_called_once_with()
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get_instance_.assert_called_once_with(OCR_AGENT_TESSERACT)
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assert ocr_agent is ocr_agent_
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@pytest.mark.parametrize("ExceptionCls", [ImportError, AttributeError])
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def but_it_raises_whan_no_such_ocr_agent_class_is_found(
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self, ExceptionCls: type, _get_ocr_agent_cls_qname_: Mock, get_instance_: Mock
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):
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_get_ocr_agent_cls_qname_.return_value = "Invalid.Ocr.Agent.Qname"
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get_instance_.side_effect = ExceptionCls
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with pytest.raises(ValueError, match="OCR_AGENT must be set to an existing OCR agent "):
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OCRAgent.get_agent()
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_get_ocr_agent_cls_qname_.assert_called_once_with()
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get_instance_.assert_called_once_with("Invalid.Ocr.Agent.Qname")
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@pytest.mark.parametrize(
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("OCR_AGENT", "expected_value"),
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[
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(OCR_AGENT_PADDLE, OCR_AGENT_PADDLE),
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(OCR_AGENT_PADDLE_OLD, OCR_AGENT_PADDLE),
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(OCR_AGENT_TESSERACT, OCR_AGENT_TESSERACT),
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(OCR_AGENT_TESSERACT_OLD, OCR_AGENT_TESSERACT),
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],
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)
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def it_computes_the_OCR_agent_qualified_module_name(
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self, OCR_AGENT: str, expected_value: str, OCR_AGENT_prop_: Mock
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):
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OCR_AGENT_prop_.return_value = OCR_AGENT
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assert OCRAgent._get_ocr_agent_cls_qname() == expected_value
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@pytest.mark.parametrize("OCR_AGENT", [OCR_AGENT_PADDLE_OLD, OCR_AGENT_TESSERACT_OLD])
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def and_it_logs_a_warning_when_the_OCR_AGENT_module_name_is_obsolete(
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self, caplog: LogCaptureFixture, OCR_AGENT: str, OCR_AGENT_prop_: Mock
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):
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OCR_AGENT_prop_.return_value = OCR_AGENT
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OCRAgent._get_ocr_agent_cls_qname()
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assert f"OCR agent name {OCR_AGENT} is outdated " in caplog.text
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# -- fixtures --------------------------------------------------------------------------------
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@pytest.fixture()
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def get_instance_(self, request: FixtureRequest):
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return method_mock(request, OCRAgent, "get_instance")
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@pytest.fixture()
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def _get_ocr_agent_cls_qname_(self, request: FixtureRequest):
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return method_mock(request, OCRAgent, "_get_ocr_agent_cls_qname")
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@pytest.fixture()
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def ocr_agent_(self, request: FixtureRequest):
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return instance_mock(request, OCRAgent)
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@pytest.fixture()
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def OCR_AGENT_prop_(self, request: FixtureRequest):
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return property_mock(request, ENVConfig, "OCR_AGENT")
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