diff --git a/fedot_ind/core/architecture/datasets/splitters.py b/fedot_ind/core/architecture/datasets/splitters.py
index 81ef6481a..906712aac 100644
--- a/fedot_ind/core/architecture/datasets/splitters.py
+++ b/fedot_ind/core/architecture/datasets/splitters.py
@@ -1,7 +1,7 @@
 """
 This module contains functions for splitting a torch dataset into parts.
 """
-from typing import List, Tuple, Generator, Optional, Dict
+from typing import Dict, Generator, List, Optional, Tuple
 
 import numpy as np
 from torch.utils.data import Dataset, Subset
@@ -44,6 +44,7 @@ def k_fold(dataset: Dataset, n: int) -> Generator[Tuple[Subset, Subset], None, N
         train_ds = Subset(dataset, train_indices)
         yield train_ds, test_ds
 
+
 def split_data(dataset: Dataset, n: int, verbose: bool = False) -> List[np.ndarray]:
     """
     Splits the data into n parts, keeping the proportions of the classes.
diff --git a/fedot_ind/core/architecture/experiment/TimeSeriesAnomalyDetection.py b/fedot_ind/core/architecture/experiment/TimeSeriesAnomalyDetection.py
index a7181ea78..89c58aecc 100644
--- a/fedot_ind/core/architecture/experiment/TimeSeriesAnomalyDetection.py
+++ b/fedot_ind/core/architecture/experiment/TimeSeriesAnomalyDetection.py
@@ -137,10 +137,12 @@ def _build_pipeline(self):
         for index, (basis, extractor) in enumerate(zip(self.branch_nodes, self.extractors)):
             pipeline_builder.add_node(basis, branch_idx=index)
             pipeline_builder.add_node(extractor, branch_idx=index)
-        pipeline_builder.join_branches('mlp', params={'hidden_layer_sizes': (256, 128, 64, 32),
-                                                      'max_iter': 300,
-                                                      'activation': 'relu',
-                                                      'solver': 'adam', })
+        pipeline_builder.join_branches('rf')
+
+        # pipeline_builder.join_branches('mlp', params={'hidden_layer_sizes': (256, 128, 64, 32),
+        #                                               'max_iter': 300,
+        #                                               'activation': 'relu',
+        #                                               'solver': 'adam', })
 
         return pipeline_builder.build()
 
diff --git a/fedot_ind/tools/loader.py b/fedot_ind/tools/loader.py
index 2088a2b93..85c107ba1 100644
--- a/fedot_ind/tools/loader.py
+++ b/fedot_ind/tools/loader.py
@@ -16,11 +16,12 @@
 
 
 class DataLoader:
-    """Class for reading data from ``tsv`` files and downloading from UCR archive if not found locally.
-    At the moment supports only ``.txt`` and ``.arff`` formats, but not relational ``.arff`` or ``.ts`` files.
+    """Class for reading data files and downloading from UCR archive if not found locally.
+    At the moment supports ``.ts``, ``.txt``, ``.tsv``, and ``.arff`` formats.
 
     Args:
         dataset_name: name of dataset
+        folder: path to folder with data
 
     Examples:
         >>> data_loader = DataLoader('ItalyPowerDemand')
@@ -787,8 +788,3 @@ def extract_data(self, dataset_name: str, data_path: str):
             return (x_train, y_train), (x_test, y_test)
         else:
             return (pd.DataFrame(x_train), y_train), (pd.DataFrame(x_test), y_test)
-
-
-if __name__ == '__main__':
-    data_loader = DataLoader('AppliancesEnergy')
-    _train_data, _test_data = data_loader.load_data()
diff --git a/tests/unit/core/architecture/datasets/test_splitters.py b/tests/unit/core/architecture/datasets/test_splitters.py
index 6757a6a6c..c2f23f02c 100644
--- a/tests/unit/core/architecture/datasets/test_splitters.py
+++ b/tests/unit/core/architecture/datasets/test_splitters.py
@@ -5,7 +5,7 @@
 from torchvision.datasets import ImageFolder
 from torchvision.transforms import ToTensor
 
-from fedot_ind.core.architecture.datasets.splitters import k_fold, split_data
+from fedot_ind.core.architecture.datasets.splitters import k_fold, split_data, undersampling, dataset_info, get_dataset_mean_std, train_test_split
 from fedot_ind.api.utils.path_lib import PROJECT_PATH
 
 DATASETS_PATH = os.path.abspath(PROJECT_PATH + '/tests/data/datasets')
@@ -18,8 +18,13 @@ def dataset():
     yield ImageFolder(root=path, transform=ToTensor())
 
 
+def test_train_test_split(dataset):
+    train_ds, test_ds = train_test_split(dataset, p=0.2)
+    assert len(train_ds) + len(test_ds) == len(dataset)
+
+
 def test_split_data(dataset):
-    fold_indices = split_data(dataset, n=3)
+    fold_indices = split_data(dataset, n=3, verbose=True)
     assert np.array_equal(np.sort(np.concatenate(fold_indices)), np.arange(len(dataset)))
     assert fold_indices[0].size == 21
     assert fold_indices[1].size == 20
@@ -29,3 +34,21 @@ def test_split_data(dataset):
 def test_k_fold(dataset):
     for train_ds, val_ds in k_fold(dataset, 3):
         assert len(train_ds) + len(val_ds) == len(dataset)
+
+
+def test_undersampling(dataset):
+    balanced = undersampling(dataset=dataset, n=3, verbose=True)
+    assert len(balanced) == 9
+
+
+def test_dataset_info(dataset):
+    result = dataset_info(dataset=dataset, verbose=True)
+    assert isinstance(result, dict)
+
+
+def test_get_dataset_mean_std(dataset):
+    mean, std = get_dataset_mean_std(dataset=dataset)
+    assert isinstance(mean, tuple)
+    assert isinstance(std, tuple)
+    assert len(mean) == 3
+    assert len(std) == 3
\ No newline at end of file
diff --git a/tests/unit/core/architecture/experiment/test_TimeSeriesAnomalyDetection.py b/tests/unit/core/architecture/experiment/test_TimeSeriesAnomalyDetection.py
index fbe68ae04..9ced5e4f6 100644
--- a/tests/unit/core/architecture/experiment/test_TimeSeriesAnomalyDetection.py
+++ b/tests/unit/core/architecture/experiment/test_TimeSeriesAnomalyDetection.py
@@ -1,3 +1,45 @@
 from fedot_ind.core.architecture.experiment.TimeSeriesAnomalyDetection import TimeSeriesAnomalyDetectionPreset
+from fedot_ind.tools.synthetic.ts_generator import TimeSeriesGenerator
 
+import pytest
 
+
+@pytest.fixture()
+def time_series():
+    ts_config = {'ts_type': 'random_walk',
+                 'length': 1000,
+                 'start_val': 36.6}
+    ts = TimeSeriesGenerator(ts_config).get_ts()
+    return ts
+
+
+@pytest.fixture()
+def anomaly_dict():
+    anomaly_d = {'anomaly1': [[40, 50], [60, 80], [200, 220]],
+                 'anomaly2': [[300, 320], [400, 420], [600, 620]]}
+    return anomaly_d
+
+
+@pytest.fixture()
+def detector():
+    params = dict(branch_nodes=['eigen_basis'],
+                  dataset='test',
+                  tuning_iterations=1,
+                  tuning_timeout=1,
+                  model_params=dict(problem='classification',
+                                    timeout=0.5,
+                                    n_jobs=1,
+                                    logging_level=50))
+    detector = TimeSeriesAnomalyDetectionPreset(params)
+    return detector
+
+
+def test_fit_predict(detector, time_series, anomaly_dict):
+    try:
+        detector.fit(time_series, anomaly_dict)
+    except Exception as ex:
+        detector.fit(time_series, anomaly_dict)
+    labels = detector.predict(time_series)
+    proba = detector.predict_proba(time_series)
+    metrics = detector.get_metrics(time_series, metric_names=['f1', 'roc_auc'])
+    assert detector.auto_model.current_pipeline.is_fitted is True
diff --git a/tests/unit/core/architecture/experiment/test_TimeSeriesRegression.py b/tests/unit/core/architecture/experiment/test_TimeSeriesRegression.py
index 39ebfd71d..caa182d05 100644
--- a/tests/unit/core/architecture/experiment/test_TimeSeriesRegression.py
+++ b/tests/unit/core/architecture/experiment/test_TimeSeriesRegression.py
@@ -1,14 +1,18 @@
+import os
+
+import numpy as np
 import pytest
 
+from fedot_ind.api.utils.path_lib import PROJECT_PATH
 from fedot_ind.core.architecture.experiment.TimeSeriesRegression import TimeSeriesRegression
 from fedot_ind.core.models.quantile.quantile_extractor import QuantileExtractor
-
+from fedot_ind.tools.loader import DataLoader
 
 @pytest.fixture
 def params():
     return dict(strategy='quantile',
                 model_params={'problem': 'regression',
-                              'timeout': 1,
+                              'timeout': 0.5,
                               'n_jobs': 2,
                               'metric': 'rmse'},
                 generator_class=QuantileExtractor({'window_mode': True, 'window_size': 20}),
@@ -23,6 +27,14 @@ def regressor(params):
     return TimeSeriesRegression(params)
 
 
+@pytest.fixture()
+def dataset():
+    path = os.path.join(PROJECT_PATH, 'examples/data/')
+    loader = DataLoader(dataset_name='BitcoinSentiment',
+                        folder=path)
+    return loader.load_data()
+
+
 def test_init(regressor):
     assert regressor.dataset_name == 'ApplianceEnergy'
     assert isinstance(regressor.generator_runner, QuantileExtractor)
@@ -31,3 +43,13 @@ def test_init(regressor):
     assert regressor.pca.n_components == 0.9
     assert regressor.pca.svd_solver == 'full'
     assert regressor.model_hyperparams['metric'] == 'rmse'
+
+
+def test_fit_predict(regressor, dataset):
+    (X_train, y_train), (X_test, y_test) = dataset
+    regressor.fit(X_train, y_train)
+    predict = regressor.predict(X_test, y_test)
+    metrics = regressor.get_metrics(target=y_test, metric_names=['rmse', 'mae', 'r2'])
+
+    assert isinstance(predict, np.ndarray)
+    assert isinstance(metrics, dict)
diff --git a/tests/unit/tools/test_load_data.py b/tests/unit/tools/test_load_data.py
index 15ebf8af9..5f597e2ef 100644
--- a/tests/unit/tools/test_load_data.py
+++ b/tests/unit/tools/test_load_data.py
@@ -50,6 +50,14 @@ def test__load_from_tsfile_to_dataframe():
     full_path = os.path.join(PROJECT_PATH, 'examples/data/BitcoinSentiment/BitcoinSentiment_TEST.ts')
     x, y = loader._load_from_tsfile_to_dataframe(full_file_path_and_name=full_path, return_separate_X_and_y=True)
 
+
+def test__load_from_tsfile_to_dataframe_with_timestamps():
+    ds_name = 'name'
+    path = '.'
+    loader = DataLoader(dataset_name=ds_name, folder=path)
+    full_path = os.path.join(PROJECT_PATH, 'examples/data/AppliancesEnergy/AppliancesEnergy_TEST.ts')
+    x, y = loader._load_from_tsfile_to_dataframe(full_file_path_and_name=full_path, return_separate_X_and_y=True)
+
     assert isinstance(x, pd.DataFrame)
     assert isinstance(y, np.ndarray)
     assert x.shape[0] == y.shape[0]
@@ -100,6 +108,18 @@ def test_read_arff_files():
         assert i is not None
 
 
+def test_read_tsv():
+    ds_name = 'name'
+    path = '.'
+    loader = DataLoader(dataset_name=ds_name, folder=path)
+    path = os.path.join(PROJECT_PATH, 'tests', 'data', 'datasets')
+    x_train, y_train, x_test, y_test = loader.read_tsv(dataset_name='ItalyPowerDemand_tsv',
+                                                       data_path=path)
+
+    for i in [x_train, y_train, x_test, y_test]:
+        assert i is not None
+
+
 def test_read_train_test_files():
     ds_name = 'name'
     path = '.'