initial creation

py3interm/EXAMPLES/pytests/test_special_assertions.py

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+#!/usr/bin/env python
+import pytest
+import math
+
+FILE_NAME = 'IDONOTEXIST.txt'
+
+def test_missing_filename():
+    with pytest.raises(FileNotFoundError):  # <1>
+        open(FILE_NAME)  # <2>
+
+def test_list():
+    print()
+    assert (.1 + .2) == pytest.approx(.3)  # <3>
+
+def test_approximate_pi():
+    assert 22 / 7 == pytest.approx(math.pi, .001)  # <4>
+