diff --git a/tests/test_label_generation.py b/tests/test_label_generation.py
new file mode 100644
index 0000000..66c42f4
--- /dev/null
+++ b/tests/test_label_generation.py
@@ -0,0 +1,6 @@
+from django_ltree.paths import PathGenerator
+
+
+def test_label_generation():
+    assert PathGenerator.guess_the_label_size(62, 62) == 2
+    assert PathGenerator.guess_the_label_size(0, 62) == 1
diff --git a/tests/test_limits.py b/tests/test_limits.py
deleted file mode 100644
index 0678f32..0000000
--- a/tests/test_limits.py
+++ /dev/null
@@ -1,6 +0,0 @@
-from taxonomy.models import Taxonomy
-
-
-def test_automatic_name_creation():
-    for i in range(0, 2_538_557_185_841_324_496):
-        Taxonomy.objects.create_child(name=i)