first commit

task15/01_unittest_task1_input/test.py

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+from task15 import hello
+import pytest
+
+# task 1
+@pytest.mark.parametrize(
+    "arg,res",
+    [
+        ('', 'Hello!'),
+        ('Masha', 'Hello, Masha!'),
+        (' ', 'Hello,  !'),
+        ('r', 'Hello, r!'),
+        ('123', 'Hello, 123!'),
+        ('I love machine learning', 'Hello, I love machine learning!')
+    ]
+)
+def test_one_argument(arg, res):
+    assert hello(arg) == res
+
+
+def test_no_arguments():
+    assert hello() == 'Hello!'