diff --git a/dedoc/config.py b/dedoc/config.py
index c220d035..0bb15ce3 100644
--- a/dedoc/config.py
+++ b/dedoc/config.py
@@ -86,16 +86,11 @@ def __init_config(self, args: Optional[Any] = None) -> None:
             self.__config = config_module._config
         else:
             self.__config = _config
-        
-        gpus = GPUtil.getGPUs()
-        if self.__config.get("on_gpu", False) and len(gpus) == 0:
-            self.__config["logger"].warning("No gpu device availiable! Changing configuration on_gpu to False!")
-            self.__config["on_gpu"] = False
-
 
         gpus = GPUtil.getGPUs()
         if self.__config.get("on_gpu", False) and len(gpus) == 0:
-            self.__config["logger"].warning("No gpu device availiable! Changing configuration on_gpu to False!")
+            logger = self.__config.get("logger", logging.getLogger())
+            logger.warning("No gpu device available! Changing configuration on_gpu to False!")
             self.__config["on_gpu"] = False
 
     def get_config(self, args: Optional[Any] = None) -> dict:
diff --git a/dedoc/readers/pdf_reader/pdf_image_reader/paragraph_extractor/scan_paragraph_classifier_extractor.py b/dedoc/readers/pdf_reader/pdf_image_reader/paragraph_extractor/scan_paragraph_classifier_extractor.py
index c54c2f89..9b6e5ba6 100644
--- a/dedoc/readers/pdf_reader/pdf_image_reader/paragraph_extractor/scan_paragraph_classifier_extractor.py
+++ b/dedoc/readers/pdf_reader/pdf_image_reader/paragraph_extractor/scan_paragraph_classifier_extractor.py
@@ -1,4 +1,5 @@
 import gzip
+import logging
 import os
 import pickle
 from typing import List
@@ -19,6 +20,7 @@ class ScanParagraphClassifierExtractor(object):
 
     def __init__(self, *, config: dict) -> None:
         super().__init__()
+        self.logger = config.get("logger", logging.getLogger())
         self.path = os.path.join(get_config()["resources_path"], "paragraph_classifier.pkl.gz")
         self.config = config
         self._feature_extractor = None
diff --git a/tests/unit_tests/test_on_gpu.py b/tests/unit_tests/test_on_gpu.py
index 36c8d89d..ea2001ae 100644
--- a/tests/unit_tests/test_on_gpu.py
+++ b/tests/unit_tests/test_on_gpu.py
@@ -1,4 +1,3 @@
-import logging
 import os
 
 import cv2
@@ -11,30 +10,26 @@
 from dedoc.readers.pdf_reader.pdf_auto_reader.txtlayer_classifier import TxtlayerClassifier
 from dedoc.readers.pdf_reader.pdf_image_reader.columns_orientation_classifier.columns_orientation_classifier import ColumnsOrientationClassifier
 from dedoc.readers.pdf_reader.pdf_image_reader.paragraph_extractor.scan_paragraph_classifier_extractor import ScanParagraphClassifierExtractor
-from dedoc.readers.txt_reader.raw_text_reader import RawTextReader
 from dedoc.structure_extractors.concrete_structure_extractors.law_structure_excractor import LawStructureExtractor
 from tests.api_tests.abstract_api_test import AbstractTestApiDocReader
 from tests.test_utils import get_test_config
 
 
 class TestOnGpu(AbstractTestApiDocReader):
-    config = dict(on_gpu=True,
-                  n_jobs=1)
-    logger = logging.getLogger()
+    config = dict(on_gpu=True, n_jobs=1)
 
     def test_line_type_classifier(self) -> None:
         """
         Loads AbstractPickledLineTypeClassifier
         """
-        txt_reader = RawTextReader(config=self.config)
         law_extractor = LawStructureExtractor(config=self.config)
-
-        path = os.path.join(self.data_directory_path, "laws", "коап_москвы_8_7_2015_utf.txt")
-        document = txt_reader.read(path=path, document_type="law", parameters={})
-        document = law_extractor.extract_structure(document, {})
-
-        self.assertListEqual([], document.attachments)
-        self.assertListEqual([], document.tables)
+        lines = [
+            LineWithMeta("     З А К О Н", metadata=LineMetadata(page_id=0, line_id=0)),
+            LineWithMeta("\n", metadata=LineMetadata(page_id=0, line_id=1)),
+            LineWithMeta("     ГОРОДА МОСКВЫ", metadata=LineMetadata(page_id=0, line_id=2))
+        ]
+        predictions = law_extractor.classifier.predict(lines)
+        self.assertListEqual(predictions, ["header", "header", "cellar"])
 
     def test_orientation_classifier(self) -> None:
         checkpoint_path = get_test_config()["resources_path"]
@@ -55,9 +50,21 @@ def test_txtlayer_classifier(self) -> None:
     def test_scan_paragraph_classifier_extractor(self) -> None:
         classify_lines_with_location = ScanParagraphClassifierExtractor(config=self.config)
         metadata = LineMetadata(page_id=1, line_id=1)
-
+        metadata2 = LineMetadata(page_id=1, line_id=2)
         bbox = BBox(x_top_left=0, y_top_left=0, width=100, height=20)
+        bbox2 = BBox(x_top_left=50, y_top_left=50, width=100, height=20)
         location = Location(page_number=1, bbox=bbox)
-        lines = [LineWithLocation(line="Example line", metadata=metadata, annotations=[], location=location)]
+        location2 = Location(page_number=1, bbox=bbox2)
+        lines = [
+            LineWithLocation(line="Example line", metadata=metadata, annotations=[], location=location),
+            LineWithLocation(line="Example line 2", metadata=metadata2, annotations=[], location=location2)
+        ]
+        data = classify_lines_with_location.feature_extractor.transform([lines])
+
+        if any((data[col].isna().all() for col in data.columns)):
+            labels = ["not_paragraph"] * len(lines)
+        else:
+            labels = classify_lines_with_location.classifier.predict(data)
 
-        self.assertEqual(classify_lines_with_location.extract(lines), lines)
+        self.assertEqual(labels[0], "paragraph")
+        self.assertEqual(labels[1], "paragraph")