1 files changed, 90 insertions, 0 deletions
diff --git a/_test/test_float.py b/_test/test_float.py
new file mode 100644
index 0000000..4be2e48
--- /dev/null
+++ b/_test/test_float.py
@@ -0,0 +1,90 @@
+# coding: utf-8
+
+import pytest  # NOQA
+
+from .roundtrip import dedent, round_trip, round_trip_dump, round_trip_load  # NOQA
+
+# http://yaml.org/type/int.html is where underscores in integers are defined
+
+
+class TestFloat:
+    def test_round_trip_non_exp(self):
+        data = round_trip(
+            """\
+        - 1.0
+        - 1.00
+        - 23.100
+        - -1.0
+        - -1.00
+        - -23.100
+        - 42.
+        - -42.
+        - +42.
+        - .5
+        - +.5
+        - -.5
+        """
+        )
+        print(data)
+        assert 0.999 < data[0] < 1.001
+        assert 0.999 < data[1] < 1.001
+        assert 23.099 < data[2] < 23.101
+        assert 0.999 < -data[3] < 1.001
+        assert 0.999 < -data[4] < 1.001
+        assert 23.099 < -data[5] < 23.101
+        assert 41.999 < data[6] < 42.001
+        assert 41.999 < -data[7] < 42.001
+        assert 41.999 < data[8] < 42.001
+        assert 0.49 < data[9] < 0.51
+        assert 0.49 < data[10] < 0.51
+        assert -0.51 < data[11] < -0.49
+
+    def test_round_trip_zeros_0(self):
+        data = round_trip(
+            """\
+        - 0.
+        - +0.
+        - -0.
+        - 0.0
+        - +0.0
+        - -0.0
+        - 0.00
+        - +0.00
+        - -0.00
+        """
+        )
+        print(data)
+        for d in data:
+            assert -0.00001 < d < 0.00001
+
+    def Xtest_round_trip_non_exp_trailing_dot(self):
+        data = round_trip(
+            """\
+        """
+        )
+        print(data)
+
+    def test_yaml_1_1_no_dot(self):
+        from ruyaml.error import MantissaNoDotYAML1_1Warning
+
+        with pytest.warns(MantissaNoDotYAML1_1Warning):
+            round_trip_load(
+                """\
+            %YAML 1.1
+            ---
+            - 1e6
+            """
+            )
+
+
+class TestCalculations:
+    def test_mul_00(self):
+        # issue 149 reported by jan.brezina@tul.cz
+        d = round_trip_load(
+            """\
+        - 0.1
+        """
+        )
+        d[0] *= -1
+        x = round_trip_dump(d)
+        assert x == '- -0.1\n'