Добавлены тесты для всех классов

tests/test_progress.py

@@ -0,0 +1,29 @@
+from ipars import ProgressBarManager
+
+
+def test_full_cycle_does_not_raise():
+    bar = ProgressBarManager(max=3)
+    bar.next()
+    bar.next()
+    bar.next()
+    bar.finish()
+
+
+def test_single_iteration():
+    bar = ProgressBarManager(max=1)
+    bar.next()
+    bar.finish()
+
+
+def test_custom_message():
+    bar = ProgressBarManager(max=2, message='Загрузка')
+    bar.next()
+    bar.next()
+    bar.finish()
+
+
+def test_custom_fill_and_width():
+    bar = ProgressBarManager(max=2, fill='=', width=20)
+    bar.next()
+    bar.next()
+    bar.finish()