Harrison/fauna loader (#5864)

Co-authored-by: Shadid12 <Shadid12@users.noreply.github.com>

tests/integration_tests/document_loaders/test_fauna.py

@@ -0,0 +1,41 @@
+import unittest
+
+from langchain.document_loaders.fauna import FaunaLoader
+
+try:
+    import fauna  # noqa: F401
+
+    fauna_installed = True
+except ImportError:
+    fauna_installed = False
+
+
+@unittest.skipIf(not fauna_installed, "fauna not installed")
+class TestFaunaLoader(unittest.TestCase):
+    def setUp(self) -> None:
+        self.fauna_secret = "<enter-valid-fauna-secret>"
+        self.valid_fql_query = "Item.all()"
+        self.valid_page_content_field = "text"
+        self.valid_metadata_fields = ["valid_metadata_fields"]
+
+    def test_fauna_loader(self) -> None:
+        """Test Fauna loader."""
+        loader = FaunaLoader(
+            query=self.valid_fql_query,
+            page_content_field=self.valid_page_content_field,
+            secret=self.fauna_secret,
+            metadata_fields=self.valid_metadata_fields,
+        )
+        docs = loader.load()
+
+        assert len(docs) > 0  # assuming the query returns at least one document
+        for doc in docs:
+            assert (
+                doc.page_content != ""
+            )  # assuming that every document has page_content
+            assert (
+                "id" in doc.metadata and doc.metadata["id"] != ""
+            )  # assuming that every document has 'id'
+            assert (
+                "ts" in doc.metadata and doc.metadata["ts"] != ""
+            )  # assuming that every document has 'ts'