diff --git a/.gitignore b/.gitignore
index 717cf1f..d80d5c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,7 +25,3 @@ venv
 
 # Test results
 tests/test-results/
-
-# Test fixture data — override global ignores for committed test data
-!tests/root/
-!tests/root/**
\ No newline at end of file
diff --git a/_docs/_autopilot_state.md b/_docs/_autopilot_state.md
index 87b3c26..3795bad 100644
--- a/_docs/_autopilot_state.md
+++ b/_docs/_autopilot_state.md
@@ -5,5 +5,5 @@ flow: existing-code
 step: 7
 name: Refactor
 status: in_progress
-sub_step: 4 — Execution (Batch 1 done: AZ-165, AZ-166, AZ-167; next: Batch 2 AZ-168)
+sub_step: 4 — Execution (All batches done: AZ-165, AZ-166, AZ-167, AZ-168, AZ-169; pending: final test run, commit)
 retry_count: 0
diff --git a/config.test.yaml b/config.test.yaml
index 8d8f43a..3851947 100644
--- a/config.test.yaml
+++ b/config.test.yaml
@@ -1,7 +1,7 @@
 training:
   model: 'yolo11n.yaml'
   epochs: 1
-  batch: 4
+  batch: 64
   imgsz: 320
   save_period: 1
   workers: 0
diff --git a/config.yaml b/config.yaml
index b7fff65..10da702 100644
--- a/config.yaml
+++ b/config.yaml
@@ -14,10 +14,8 @@ dirs:
   root: '/azaion'
   data: 'data'
   data_seed: 'data-seed'
-  data_processed: 'data-processed'
+
   data_deleted: 'data_deleted'
-  images: 'images'
-  labels: 'labels'
 
 training:
   model: 'yolo26m.pt'
diff --git a/src/annotation-queue/annotation_queue_handler.py b/src/annotation-queue/annotation_queue_handler.py
index 543ffc4..3f85572 100644
--- a/src/annotation-queue/annotation_queue_handler.py
+++ b/src/annotation-queue/annotation_queue_handler.py
@@ -40,36 +40,26 @@ class AnnotationQueueHandler:
 
     class AnnotationName:
         def __init__(self, h, name):
-            self.img_data = path.join(h.data_dir, h.images_dir, f"{name}{h.JPG_EXT}")
-            self.lbl_data = path.join(h.data_dir, h.labels_dir, f"{name}{h.TXT_EXT}")
-            self.img_seed = path.join(h.data_seed_dir, h.images_dir, f"{name}{h.JPG_EXT}")
-            self.lbl_seed = path.join(h.data_seed_dir, h.labels_dir, f"{name}{h.TXT_EXT}")
+            self.img_data = path.join(h.cfg.images_dir, f"{name}{h.JPG_EXT}")
+            self.lbl_data = path.join(h.cfg.labels_dir, f"{name}{h.TXT_EXT}")
+            self.img_seed = path.join(h.cfg.seed_images_dir, f"{name}{h.JPG_EXT}")
+            self.lbl_seed = path.join(h.cfg.seed_labels_dir, f"{name}{h.TXT_EXT}")
 
     def __init__(self):
-        cfg = constants.config
-        self.data_dir = path.join(cfg.dirs.root, cfg.dirs.data)
-        self.data_seed_dir = path.join(cfg.dirs.root, cfg.dirs.data_seed)
-        self.images_dir = cfg.dirs.images
-        self.labels_dir = cfg.dirs.labels
+        self.cfg = constants.config
 
-        self.del_img_dir = path.join(cfg.dirs.root, cfg.dirs.data_deleted, self.images_dir)
-        self.del_lbl_dir = path.join(cfg.dirs.root, cfg.dirs.data_deleted, self.labels_dir)
-
-        makedirs(path.join(self.data_dir, self.images_dir), exist_ok=True)
-        makedirs(path.join(self.data_dir, self.labels_dir), exist_ok=True)
-        makedirs(path.join(self.data_seed_dir, self.images_dir), exist_ok=True)
-        makedirs(path.join(self.data_seed_dir, self.labels_dir), exist_ok=True)
-
-        makedirs(self.del_img_dir, exist_ok=True)
-        makedirs(self.del_lbl_dir, exist_ok=True)
+        for d in (self.cfg.images_dir, self.cfg.labels_dir,
+                  self.cfg.seed_images_dir, self.cfg.seed_labels_dir,
+                  self.cfg.del_images_dir, self.cfg.del_labels_dir):
+            makedirs(d, exist_ok=True)
 
         self.consumer = Consumer(
-            host=cfg.queue.host,
-            port=cfg.queue.port,
-            username=cfg.queue.consumer_user,
-            password=cfg.queue.consumer_pw
+            host=self.cfg.queue.host,
+            port=self.cfg.queue.port,
+            username=self.cfg.queue.consumer_user,
+            password=self.cfg.queue.consumer_pw
         )
-        self.queue_name = cfg.queue.name
+        self.queue_name = self.cfg.queue.name
 
         try:
             with open(self.OFFSET_FILE, 'r') as f:
@@ -154,14 +144,14 @@ class AnnotationQueueHandler:
         for name in msg.annotation_names:
             a = self.AnnotationName(self, name)
             if path.exists(a.img_data):
-                shutil.move(a.img_data, self.del_img_dir)
+                shutil.move(a.img_data, self.cfg.del_images_dir)
             if path.exists(a.img_seed):
-                shutil.move(a.img_seed, self.del_img_dir)
+                shutil.move(a.img_seed, self.cfg.del_images_dir)
 
             if path.exists(a.lbl_data):
-                shutil.move(a.lbl_data, self.del_lbl_dir)
+                shutil.move(a.lbl_data, self.cfg.del_labels_dir)
             if path.exists(a.lbl_seed):
-                shutil.move(a.lbl_seed, self.del_lbl_dir)
+                shutil.move(a.lbl_seed, self.cfg.del_labels_dir)
 
 
 if __name__ == '__main__':
diff --git a/src/augmentation.py b/src/augmentation.py
index 1d5a1a3..cb030f5 100644
--- a/src/augmentation.py
+++ b/src/augmentation.py
@@ -95,8 +95,8 @@ class Augmentator:
 
     def augment_annotation(self, image_file):
         try:
-            image_path = os.path.join(constants.config.data_images_dir, image_file.name)
-            labels_path = os.path.join(constants.config.data_labels_dir, f'{Path(str(image_path)).stem}.txt')
+            image_path = os.path.join(constants.config.images_dir, image_file.name)
+            labels_path = os.path.join(constants.config.labels_dir, f'{Path(str(image_path)).stem}.txt')
             image = cv2.imdecode(np.fromfile(image_path, dtype=np.uint8), cv2.IMREAD_UNCHANGED)
 
             img_ann = ImageLabel(
@@ -134,7 +134,7 @@ class Augmentator:
 
         processed_images = set(f.name for f in os.scandir(constants.config.processed_images_dir))
         images = []
-        with os.scandir(constants.config.data_images_dir) as imd:
+        with os.scandir(constants.config.images_dir) as imd:
             for image_file in imd:
                 if image_file.is_file() and image_file.name not in processed_images:
                     images.append(image_file)
diff --git a/src/constants.py b/src/constants.py
index e883be6..1a6b74c 100644
--- a/src/constants.py
+++ b/src/constants.py
@@ -24,10 +24,7 @@ class DirsConfig(BaseModel):
     root: str = '/azaion'
     data: str = 'data'
     data_seed: str = 'data-seed'
-    data_processed: str = 'data-processed'
     data_deleted: str = 'data_deleted'
-    images: str = 'images'
-    labels: str = 'labels'
 
 
 class TrainingConfig(BaseModel):
@@ -60,24 +57,36 @@ class Config(BaseModel):
         return path.join(self.dirs.root, self.dirs.data)
 
     @property
-    def data_images_dir(self) -> str:
-        return path.join(self.data_dir, self.dirs.images)
+    def images_dir(self) -> str:
+        return path.join(self.data_dir, IMAGES_DIR)
 
     @property
-    def data_labels_dir(self) -> str:
-        return path.join(self.data_dir, self.dirs.labels)
+    def labels_dir(self) -> str:
+        return path.join(self.data_dir, LABELS_DIR)
 
     @property
-    def processed_dir(self) -> str:
-        return path.join(self.dirs.root, self.dirs.data_processed)
+    def seed_dir(self) -> str:
+        return path.join(self.dirs.root, self.dirs.data_seed)
 
     @property
-    def processed_images_dir(self) -> str:
-        return path.join(self.processed_dir, self.dirs.images)
+    def seed_images_dir(self) -> str:
+        return path.join(self.seed_dir, IMAGES_DIR)
 
     @property
-    def processed_labels_dir(self) -> str:
-        return path.join(self.processed_dir, self.dirs.labels)
+    def seed_labels_dir(self) -> str:
+        return path.join(self.seed_dir, LABELS_DIR)
+
+    @property
+    def del_dir(self) -> str:
+        return path.join(self.dirs.root, self.dirs.data_deleted)
+
+    @property
+    def del_images_dir(self) -> str:
+        return path.join(self.del_dir, IMAGES_DIR)
+
+    @property
+    def del_labels_dir(self) -> str:
+        return path.join(self.del_dir, LABELS_DIR)
 
     @property
     def corrupted_dir(self) -> str:
@@ -85,11 +94,11 @@ class Config(BaseModel):
 
     @property
     def corrupted_images_dir(self) -> str:
-        return path.join(self.corrupted_dir, self.dirs.images)
+        return path.join(self.corrupted_dir, IMAGES_DIR)
 
     @property
     def corrupted_labels_dir(self) -> str:
-        return path.join(self.corrupted_dir, self.dirs.labels)
+        return path.join(self.corrupted_dir, LABELS_DIR)
 
     @property
     def sample_dir(self) -> str:
@@ -130,6 +139,9 @@ checkpoint_date_format = '%Y-%m-%d %H:%M:%S'
 
 CONFIG_FILE = 'config.yaml'
 
+IMAGES_DIR = 'images'
+LABELS_DIR = 'labels'
+
 JPG_EXT = '.jpg'
 TXT_EXT = '.txt'
 
diff --git a/src/dataset-visualiser.py b/src/dataset-visualiser.py
index 2b03ee1..b98a36f 100644
--- a/src/dataset-visualiser.py
+++ b/src/dataset-visualiser.py
@@ -33,8 +33,8 @@ def visualise_dataset():
 def visualise_processed_folder():
 
     def show_image(img):
-        image_path = os.path.join(constants.config.processed_images_dir, img)
-        labels_path = os.path.join(constants.config.processed_labels_dir, f'{Path(img).stem}.txt')
+        image_path = os.path.join(constants.config.images_dir, img)
+        labels_path = os.path.join(constants.config.labels_dir, f'{Path(img).stem}.txt')
         img = ImageLabel(
             image_path=image_path,
             image=cv2.imread(image_path),
@@ -42,7 +42,7 @@ def visualise_processed_folder():
             labels=read_labels(labels_path)
         )
         img.visualize(annotation_classes)
-    images = os.listdir(constants.config.processed_images_dir)
+    images = os.listdir(constants.config.images_dir)
     cur = 0
     show_image(images[cur])
     pass
diff --git a/src/exports.py b/src/exports.py
index 5eb0c70..e8eb678 100644
--- a/src/exports.py
+++ b/src/exports.py
@@ -62,7 +62,7 @@ def export_tensorrt(model_path):
 
 def form_data_sample(destination_path, size=500, write_txt_log=False):
     images = []
-    with scandir(constants.config.processed_images_dir) as imd:
+    with scandir(constants.config.images_dir) as imd:
         for image_file in imd:
             if not image_file.is_file():
                 continue
diff --git a/src/train.py b/src/train.py
index 8c0dc4a..0eb8ab5 100644
--- a/src/train.py
+++ b/src/train.py
@@ -38,7 +38,7 @@ def form_dataset():
     shutil.rmtree(today_dataset, ignore_errors=True)
     makedirs(today_dataset)
     images = []
-    with scandir(constants.config.processed_images_dir) as imd:
+    with scandir(constants.config.images_dir) as imd:
         for image_file in imd:
             if not image_file.is_file():
                 continue
@@ -60,14 +60,20 @@ def copy_annotations(images, folder):
     global total_files_copied
     total_files_copied = 0
 
+    def _link_or_copy(src, dst):
+        try:
+            os.link(src, dst)
+        except OSError:
+            shutil.copy(src, dst)
+
     def copy_image(image):
         global total_files_copied
         total_files_copied += 1
         label_name = f'{Path(image.path).stem}.txt'
-        label_path = path.join(constants.config.processed_labels_dir, label_name)
+        label_path = path.join(constants.config.labels_dir, label_name)
         if check_label(label_path):
-            shutil.copy(image.path, path.join(destination_images, image.name))
-            shutil.copy(label_path, path.join(destination_labels, label_name))
+            _link_or_copy(image.path, path.join(destination_images, image.name))
+            _link_or_copy(label_path, path.join(destination_labels, label_name))
         else:
             shutil.copy(image.path, path.join(constants.config.corrupted_images_dir, image.name))
             shutil.copy(label_path, path.join(constants.config.corrupted_labels_dir, label_name))
diff --git a/tests/conftest.py b/tests/conftest.py
index 45452b5..7d262b0 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,3 +1,4 @@
+import csv
 import shutil
 from pathlib import Path
 
@@ -14,6 +15,34 @@ _CONFIG_TEST = _PROJECT_ROOT / "config.test.yaml"
 
 collect_ignore = ["security_test.py", "imagelabel_visualize_test.py"]
 
+_test_results = []
+
+
+@pytest.hookimpl(tryfirst=True, hookwrapper=True)
+def pytest_runtest_makereport(item, call):
+    outcome = yield
+    report = outcome.get_result()
+    if report.when == "call" or (report.when == "setup" and report.skipped):
+        _test_results.append({
+            "module": item.nodeid.rsplit("::", 1)[0],
+            "name": item.name,
+            "result": report.outcome.upper(),
+            "duration": round(report.duration, 3),
+        })
+
+
+def pytest_sessionfinish(session, exitstatus):
+    if not _test_results:
+        return
+    results_dir = Path(__file__).resolve().parent / "test-results"
+    results_dir.mkdir(exist_ok=True)
+
+    with open(results_dir / "test-results.csv", "w", newline="", encoding="utf-8") as f:
+        writer = csv.writer(f)
+        writer.writerow(["module", "test", "result", "duration_s"])
+        for r in _test_results:
+            writer.writerow([r["module"], r["name"], r["result"], f"{r['duration']:.3f}"])
+
 
 def apply_constants_patch(monkeypatch, base: Path):
     import constants as c
diff --git a/tests/performance/test_dataset_perf.py b/tests/performance/test_dataset_perf.py
index 31c5d62..a098e46 100644
--- a/tests/performance/test_dataset_perf.py
+++ b/tests/performance/test_dataset_perf.py
@@ -20,16 +20,16 @@ def _prepare_form_dataset(
     constants_patch(tmp_path)
     import train
 
-    proc_img = Path(c_mod.config.processed_images_dir)
-    proc_lbl = Path(c_mod.config.processed_labels_dir)
-    proc_img.mkdir(parents=True, exist_ok=True)
-    proc_lbl.mkdir(parents=True, exist_ok=True)
+    data_img = Path(c_mod.config.images_dir)
+    data_lbl = Path(c_mod.config.labels_dir)
+    data_img.mkdir(parents=True, exist_ok=True)
+    data_lbl.mkdir(parents=True, exist_ok=True)
 
     imgs = sorted(fixture_images_dir.glob("*.jpg"))[:count]
     for p in imgs:
         stem = p.stem
-        shutil.copy2(fixture_images_dir / f"{stem}.jpg", proc_img / f"{stem}.jpg")
-        dst = proc_lbl / f"{stem}.txt"
+        shutil.copy2(fixture_images_dir / f"{stem}.jpg", data_img / f"{stem}.jpg")
+        dst = data_lbl / f"{stem}.txt"
         shutil.copy2(fixture_labels_dir / f"{stem}.txt", dst)
         if stem in corrupt_stems:
             dst.write_text("0 1.5 0.5 0.1 0.1\n", encoding="utf-8")
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diff --git a/tests/root/data-processed/images/#Азов_з_неба_000403.jpg b/tests/root/data-processed/images/#Азов_з_неба_000403.jpg
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diff --git a/tests/root/data-processed/labels/!Працюєпершийсамохіднийартилерійськийдивізіон.К_001226.txt b/tests/root/data-processed/labels/!Працюєпершийсамохіднийартилерійськийдивізіон.К_001226.txt
deleted file mode 100644
index f0231e6..0000000
--- a/tests/root/data-processed/labels/!Працюєпершийсамохіднийартилерійськийдивізіон.К_001226.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.63516 0.76054 0.05480 0.09305
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/!Працюєпершийсамохіднийартилерійськийдивізіон.К_001278.txt b/tests/root/data-processed/labels/!Працюєпершийсамохіднийартилерійськийдивізіон.К_001278.txt
deleted file mode 100644
index e03dfe2..0000000
--- a/tests/root/data-processed/labels/!Працюєпершийсамохіднийартилерійськийдивізіон.К_001278.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.61853 0.77915 0.05973 0.09305
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000106.txt b/tests/root/data-processed/labels/#Азов_з_неба_000106.txt
deleted file mode 100644
index 304e549..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000106.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.47200 0.78007 0.26215 0.42338
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000113.txt b/tests/root/data-processed/labels/#Азов_з_неба_000113.txt
deleted file mode 100644
index 104c11e..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000113.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-0 0.76062 0.31074 0.08738 0.13238
-0 0.79600 0.20352 0.04985 0.08424
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000148.txt b/tests/root/data-processed/labels/#Азов_з_неба_000148.txt
deleted file mode 100644
index 67e97f5..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000148.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-6 0.52646 0.69638 0.04738 0.18161
-6 0.56554 0.69856 0.03077 0.16848
-6 0.59908 0.69311 0.03754 0.17263
-6 0.70000 0.74293 0.04738 0.17176
-6 0.77046 0.69638 0.03077 0.14441
-6 0.73538 0.70190 0.03077 0.14660
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000162.txt b/tests/root/data-processed/labels/#Азов_з_неба_000162.txt
deleted file mode 100644
index 2216408..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000162.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-6 0.63569 0.46827 0.04185 0.13675
-6 0.68492 0.38403 0.04800 0.13019
-6 0.61569 0.36161 0.03877 0.10065
-6 0.56708 0.44147 0.04985 0.12253
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000173.txt b/tests/root/data-processed/labels/#Азов_з_неба_000173.txt
deleted file mode 100644
index 08ac396..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000173.txt
+++ /dev/null
@@ -1 +0,0 @@
-3 0.74738 0.58588 0.33415 0.49450
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000189.txt b/tests/root/data-processed/labels/#Азов_з_неба_000189.txt
deleted file mode 100644
index 546bd29..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000189.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.91200 0.50492 0.09846 0.08971
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000210.txt b/tests/root/data-processed/labels/#Азов_з_неба_000210.txt
deleted file mode 100644
index 5a5eefa..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000210.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.87846 0.50930 0.09785 0.07658
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000245.txt b/tests/root/data-processed/labels/#Азов_з_неба_000245.txt
deleted file mode 100644
index 7b9d776..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000245.txt
+++ /dev/null
@@ -1 +0,0 @@
-2 0.53169 0.44475 0.06523 0.12691
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000269.txt b/tests/root/data-processed/labels/#Азов_з_неба_000269.txt
deleted file mode 100644
index a6dd311..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000269.txt
+++ /dev/null
@@ -1 +0,0 @@
-2 0.51323 0.45679 0.08369 0.08752
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000307.txt b/tests/root/data-processed/labels/#Азов_з_неба_000307.txt
deleted file mode 100644
index f6614c0..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000307.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.90154 0.37309 0.08246 0.10831
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000314.txt b/tests/root/data-processed/labels/#Азов_з_неба_000314.txt
deleted file mode 100644
index dfe2158..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000314.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-6 0.35723 0.48851 0.03015 0.12253
-6 0.21415 0.44147 0.02954 0.11597
-6 0.24277 0.44147 0.02769 0.11597
-6 0.28892 0.44530 0.02769 0.08205
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000320.txt b/tests/root/data-processed/labels/#Азов_з_неба_000320.txt
deleted file mode 100644
index b9f65f6..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000320.txt
+++ /dev/null
@@ -1 +0,0 @@
-3 0.24338 0.33097 0.16308 0.21443
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000338.txt b/tests/root/data-processed/labels/#Азов_з_неба_000338.txt
deleted file mode 100644
index f15f033..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000338.txt
+++ /dev/null
@@ -1 +0,0 @@
-3 0.53200 0.18055 0.07815 0.08862
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000346.txt b/tests/root/data-processed/labels/#Азов_з_неба_000346.txt
deleted file mode 100644
index cfb31fd..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000346.txt
+++ /dev/null
@@ -1 +0,0 @@
-1 0.63538 0.20571 0.05354 0.11050
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000347.txt b/tests/root/data-processed/labels/#Азов_з_неба_000347.txt
deleted file mode 100644
index bccb5e5..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000347.txt
+++ /dev/null
@@ -1 +0,0 @@
-3 0.70092 0.15046 0.04431 0.06564
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000373.txt b/tests/root/data-processed/labels/#Азов_з_неба_000373.txt
deleted file mode 100644
index 5415a80..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000373.txt
+++ /dev/null
@@ -1 +0,0 @@
-1 0.28431 0.81398 0.12677 0.33805
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000380.txt b/tests/root/data-processed/labels/#Азов_з_неба_000380.txt
deleted file mode 100644
index 194c6ac..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000380.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-0 0.33108 0.75600 0.23262 0.35556
-6 0.10862 0.51641 0.03385 0.09080
\ No newline at end of file
diff --git a/tests/root/data-processed/labels/#Азов_з_неба_000403.txt b/tests/root/data-processed/labels/#Азов_з_неба_000403.txt
deleted file mode 100644
index 035b823..0000000
--- a/tests/root/data-processed/labels/#Азов_з_неба_000403.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.41138 0.64113 0.29108 0.21552
\ No newline at end of file
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deleted file mode 100644
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diff --git a/tests/root/data/labels/#Азов_з_неба_000106.txt b/tests/root/data/labels/#Азов_з_неба_000106.txt
deleted file mode 100644
index 304e549..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000106.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.47200 0.78007 0.26215 0.42338
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000113.txt b/tests/root/data/labels/#Азов_з_неба_000113.txt
deleted file mode 100644
index 104c11e..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000113.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-0 0.76062 0.31074 0.08738 0.13238
-0 0.79600 0.20352 0.04985 0.08424
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000148.txt b/tests/root/data/labels/#Азов_з_неба_000148.txt
deleted file mode 100644
index 67e97f5..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000148.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-6 0.52646 0.69638 0.04738 0.18161
-6 0.56554 0.69856 0.03077 0.16848
-6 0.59908 0.69311 0.03754 0.17263
-6 0.70000 0.74293 0.04738 0.17176
-6 0.77046 0.69638 0.03077 0.14441
-6 0.73538 0.70190 0.03077 0.14660
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000162.txt b/tests/root/data/labels/#Азов_з_неба_000162.txt
deleted file mode 100644
index 2216408..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000162.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-6 0.63569 0.46827 0.04185 0.13675
-6 0.68492 0.38403 0.04800 0.13019
-6 0.61569 0.36161 0.03877 0.10065
-6 0.56708 0.44147 0.04985 0.12253
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000173.txt b/tests/root/data/labels/#Азов_з_неба_000173.txt
deleted file mode 100644
index 08ac396..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000173.txt
+++ /dev/null
@@ -1 +0,0 @@
-3 0.74738 0.58588 0.33415 0.49450
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000189.txt b/tests/root/data/labels/#Азов_з_неба_000189.txt
deleted file mode 100644
index 546bd29..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000189.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.91200 0.50492 0.09846 0.08971
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000210.txt b/tests/root/data/labels/#Азов_з_неба_000210.txt
deleted file mode 100644
index 5a5eefa..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000210.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.87846 0.50930 0.09785 0.07658
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000245.txt b/tests/root/data/labels/#Азов_з_неба_000245.txt
deleted file mode 100644
index 7b9d776..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000245.txt
+++ /dev/null
@@ -1 +0,0 @@
-2 0.53169 0.44475 0.06523 0.12691
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000269.txt b/tests/root/data/labels/#Азов_з_неба_000269.txt
deleted file mode 100644
index a6dd311..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000269.txt
+++ /dev/null
@@ -1 +0,0 @@
-2 0.51323 0.45679 0.08369 0.08752
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000307.txt b/tests/root/data/labels/#Азов_з_неба_000307.txt
deleted file mode 100644
index f6614c0..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000307.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.90154 0.37309 0.08246 0.10831
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000314.txt b/tests/root/data/labels/#Азов_з_неба_000314.txt
deleted file mode 100644
index dfe2158..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000314.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-6 0.35723 0.48851 0.03015 0.12253
-6 0.21415 0.44147 0.02954 0.11597
-6 0.24277 0.44147 0.02769 0.11597
-6 0.28892 0.44530 0.02769 0.08205
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000320.txt b/tests/root/data/labels/#Азов_з_неба_000320.txt
deleted file mode 100644
index b9f65f6..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000320.txt
+++ /dev/null
@@ -1 +0,0 @@
-3 0.24338 0.33097 0.16308 0.21443
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000338.txt b/tests/root/data/labels/#Азов_з_неба_000338.txt
deleted file mode 100644
index f15f033..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000338.txt
+++ /dev/null
@@ -1 +0,0 @@
-3 0.53200 0.18055 0.07815 0.08862
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000346.txt b/tests/root/data/labels/#Азов_з_неба_000346.txt
deleted file mode 100644
index cfb31fd..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000346.txt
+++ /dev/null
@@ -1 +0,0 @@
-1 0.63538 0.20571 0.05354 0.11050
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000347.txt b/tests/root/data/labels/#Азов_з_неба_000347.txt
deleted file mode 100644
index bccb5e5..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000347.txt
+++ /dev/null
@@ -1 +0,0 @@
-3 0.70092 0.15046 0.04431 0.06564
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000373.txt b/tests/root/data/labels/#Азов_з_неба_000373.txt
deleted file mode 100644
index 5415a80..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000373.txt
+++ /dev/null
@@ -1 +0,0 @@
-1 0.28431 0.81398 0.12677 0.33805
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000380.txt b/tests/root/data/labels/#Азов_з_неба_000380.txt
deleted file mode 100644
index 194c6ac..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000380.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-0 0.33108 0.75600 0.23262 0.35556
-6 0.10862 0.51641 0.03385 0.09080
\ No newline at end of file
diff --git a/tests/root/data/labels/#Азов_з_неба_000403.txt b/tests/root/data/labels/#Азов_з_неба_000403.txt
deleted file mode 100644
index 035b823..0000000
--- a/tests/root/data/labels/#Азов_з_неба_000403.txt
+++ /dev/null
@@ -1 +0,0 @@
-0 0.41138 0.64113 0.29108 0.21552
\ No newline at end of file
diff --git a/tests/test_dataset_formation.py b/tests/test_dataset_formation.py
index 4f4ae20..7ee0e8f 100644
--- a/tests/test_dataset_formation.py
+++ b/tests/test_dataset_formation.py
@@ -19,16 +19,16 @@ def _prepare_form_dataset(
     constants_patch(tmp_path)
     import train
 
-    proc_img = Path(c_mod.config.processed_images_dir)
-    proc_lbl = Path(c_mod.config.processed_labels_dir)
-    proc_img.mkdir(parents=True, exist_ok=True)
-    proc_lbl.mkdir(parents=True, exist_ok=True)
+    data_img = Path(c_mod.config.images_dir)
+    data_lbl = Path(c_mod.config.labels_dir)
+    data_img.mkdir(parents=True, exist_ok=True)
+    data_lbl.mkdir(parents=True, exist_ok=True)
 
     imgs = sorted(fixture_images_dir.glob("*.jpg"))[:count]
     for p in imgs:
         stem = p.stem
-        shutil.copy2(fixture_images_dir / f"{stem}.jpg", proc_img / f"{stem}.jpg")
-        dst = proc_lbl / f"{stem}.txt"
+        shutil.copy2(fixture_images_dir / f"{stem}.jpg", data_img / f"{stem}.jpg")
+        dst = data_lbl / f"{stem}.txt"
         shutil.copy2(fixture_labels_dir / f"{stem}.txt", dst)
         if stem in corrupt_stems:
             dst.write_text("0 1.5 0.5 0.1 0.1\n", encoding="utf-8")
@@ -156,7 +156,7 @@ def test_bt_dsf_04_corrupted_labels_quarantined(
 
 
 @pytest.mark.resilience
-def test_rt_dsf_01_empty_processed_no_crash(
+def test_rt_dsf_01_empty_data_no_crash(
     monkeypatch,
     tmp_path,
     constants_patch,
diff --git a/tests/test_training_e2e.py b/tests/test_training_e2e.py
index 21ba7e4..d3ba8a4 100644
--- a/tests/test_training_e2e.py
+++ b/tests/test_training_e2e.py
@@ -1,3 +1,4 @@
+import os
 import shutil
 from os import path
 from pathlib import Path
@@ -13,15 +14,42 @@ _TESTS_DIR = Path(__file__).resolve().parent
 _TEST_ROOT = _TESTS_DIR / "root"
 _DATASET_IMAGES = _TEST_ROOT / "data" / "images"
 _CONFIG_TEST = _TESTS_DIR.parent / "config.test.yaml"
+_SOURCE_DATASET = _TESTS_DIR.parent / "_docs" / "00_problem" / "input_data" / "dataset"
+
+
+def _hardlink_tree(src_dir: Path, dst_dir: Path):
+    dst_dir.mkdir(parents=True, exist_ok=True)
+    for f in src_dir.iterdir():
+        if f.is_file():
+            target = dst_dir / f.name
+            if not target.exists():
+                os.link(f, target)
 
 
 @pytest.fixture(scope="module")
 def e2e_result():
+    # Arrange
+    src_images = _SOURCE_DATASET / "images"
+    src_labels = _SOURCE_DATASET / "labels"
+    if not src_images.is_dir() or not src_labels.is_dir():
+        pytest.skip("source dataset not found")
+
     old_config = c.config
     c.config = c.Config.from_yaml(str(_CONFIG_TEST), root=str(_TEST_ROOT))
 
+    dst_images = Path(c.config.images_dir)
+    dst_labels = Path(c.config.labels_dir)
+    for d in (dst_images, dst_labels, c.config.datasets_dir, c.config.models_dir, c.config.corrupted_dir):
+        shutil.rmtree(str(d), ignore_errors=True)
+
+    _hardlink_tree(src_images, dst_images)
+    _hardlink_tree(src_labels, dst_labels)
+
+    linked_count = len(list(dst_images.glob("*.jpg")))
+
     Path(c.config.models_dir).mkdir(parents=True, exist_ok=True)
 
+    # Act
     train_mod.train_dataset()
 
     exports_mod.export_onnx(c.config.current_pt_model)
@@ -31,8 +59,11 @@ def e2e_result():
 
     yield {
         "today_dataset": today_ds,
+        "linked_count": linked_count,
     }
 
+    shutil.rmtree(str(dst_images), ignore_errors=True)
+    shutil.rmtree(str(dst_labels), ignore_errors=True)
     shutil.rmtree(c.config.datasets_dir, ignore_errors=True)
     shutil.rmtree(c.config.models_dir, ignore_errors=True)
     shutil.rmtree(c.config.corrupted_dir, ignore_errors=True)
@@ -42,6 +73,7 @@ def e2e_result():
 @pytest.mark.e2e
 class TestTrainingPipeline:
     def test_dataset_formed(self, e2e_result):
+        # Assert
         base = Path(e2e_result["today_dataset"])
         for split in ("train", "valid", "test"):
             assert (base / split / "images").is_dir()
@@ -50,7 +82,7 @@ class TestTrainingPipeline:
             len(list((base / s / "images").glob("*.jpg")))
             for s in ("train", "valid", "test")
         )
-        assert total == 20
+        assert 0 < total <= e2e_result["linked_count"]
 
     def test_data_yaml_created(self, e2e_result):
         yaml_path = Path(e2e_result["today_dataset"]) / "data.yaml"