ceph-volume tests verify str_to_int utility

Signed-off-by: Alfredo Deza <adeza@redhat.com>

src/ceph-volume/ceph_volume/tests/util/test_util.py

@@ -0,0 +1,18 @@
+import pytest
+from ceph_volume import util
+
+
+class TestStrToInt(object):
+
+    def test_passing_a_float_str(self):
+        result = util.str_to_int("1.99")
+        assert result == 1
+
+    def test_passing_a_float_does_not_round(self):
+        result = util.str_to_int("1.99", round_down=False)
+        assert result == 2
+
+    def test_text_is_not_an_integer_like(self):
+        with pytest.raises(RuntimeError) as error:
+            util.str_to_int("1.4GB")
+        assert str(error.value) == "Unable to convert to integer: '1.4GB'"