Fix the failing unit tests. (langchain-ai#13)

Update unit test for lazy_load.
Format code using ruff.

libs/community/tests/unit_tests/document_loaders/test_pebblo.py

@@ -2,34 +2,42 @@
 from pathlib import Path
 
 from langchain_core.documents import Document
-from langchain_community.document_loaders import CSVLoader
 
-EXAMPLE_DOCS_DIRECTORY = str(Path(__file__).parent.parent / "examples/")
+from langchain_community.document_loaders import CSVLoader, PyPDFLoader
+
+EXAMPLE_DOCS_DIRECTORY = str(Path(__file__).parent.parent.parent / "examples/")
+
 
 def test_pebblo_import() -> None:
     """Test that the Pebblo safe loader can be imported."""
     from langchain_community.document_loaders import PebbloSafeLoader  # noqa: F401
 
+
 def test_empty_filebased_loader() -> None:
     """Test basic file based csv loader."""
     # Setup
     from langchain_community.document_loaders import PebbloSafeLoader
+
     file_path = os.path.join(EXAMPLE_DOCS_DIRECTORY, "test_empty.csv")
     expected_docs: list = []
 
     # Exercise
     loader = PebbloSafeLoader(
         CSVLoader(file_path=file_path),
-        "dummy_app_name", "dummy_owner","dummy_description"
-        )
+        "dummy_app_name",
+        "dummy_owner",
+        "dummy_description",
+    )
     result = loader.load()
 
     # Assert
     assert result == expected_docs
 
+
 def test_csv_loader_load_valid_data() -> None:
     # Setup
     from langchain_community.document_loaders import PebbloSafeLoader
+
     file_path = os.path.join(EXAMPLE_DOCS_DIRECTORY, "test_nominal.csv")
     expected_docs = [
         Document(
@@ -45,37 +53,33 @@ def test_csv_loader_load_valid_data() -> None:
     # Exercise
     loader = PebbloSafeLoader(
         CSVLoader(file_path=file_path),
-        "dummy_app_name", "dummy_owner","dummy_description"
-        )
+        "dummy_app_name",
+        "dummy_owner",
+        "dummy_description",
+    )
     result = loader.load()
 
     # Assert
     assert result == expected_docs
 
-def test_csv_lazy_load():
-        # Setup
+
+def test_pdf_lazy_load():
+    # Setup
     from langchain_community.document_loaders import PebbloSafeLoader
-    file_path = os.path.join(EXAMPLE_DOCS_DIRECTORY, "test_nominal.csv")
-    expected_docs = [
-        Document(
-            page_content="column1: value1\ncolumn2: value2\ncolumn3: value3",
-            metadata={"source": file_path, "row": 0},
-        ),
-        Document(
-            page_content="column1: value4\ncolumn2: value5\ncolumn3: value6",
-            metadata={"source": file_path, "row": 1},
-        ),
-    ]
+
+    file_path = os.path.join(
+        EXAMPLE_DOCS_DIRECTORY, "multi-page-forms-sample-2-page.pdf"
+    )
 
     # Exercise
     loader = PebbloSafeLoader(
-        CSVLoader(file_path=file_path),
-        "dummy_app_name", "dummy_owner","dummy_description"
-        )
+        PyPDFLoader(file_path=file_path),
+        "dummy_app_name",
+        "dummy_owner",
+        "dummy_description",
+    )
 
-    result = []
-    for doc in loader.lazy_load():
-        result.extend(doc)
+    result = list(loader.lazy_load())
 
     # Assert
-    assert result == expected_docs
+    assert len(result) == 2