Merging upstream version 0.18.6.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/_test/test_none.py b/_test/test_none.py
new file mode 100644
index 0000000..dfb6c4c
--- /dev/null
+++ b/_test/test_none.py
@@ -0,0 +1,41 @@
+# coding: utf-8
+
+import pytest  # type: ignore  # NOQA
+from roundtrip import round_trip_load, round_trip_dump  # type: ignore
+
+
+class TestNone:
+    def test_dump00(self) -> None:
+        data = None
+        s = round_trip_dump(data)
+        assert s == 'null\n...\n'
+        d = round_trip_load(s)
+        assert d == data
+
+    def test_dump01(self) -> None:
+        data = None
+        s = round_trip_dump(data, explicit_end=True)
+        assert s == 'null\n...\n'
+        d = round_trip_load(s)
+        assert d == data
+
+    def test_dump02(self) -> None:
+        data = None
+        s = round_trip_dump(data, explicit_end=False)
+        assert s == 'null\n...\n'
+        d = round_trip_load(s)
+        assert d == data
+
+    def test_dump03(self) -> None:
+        data = None
+        s = round_trip_dump(data, explicit_start=True)
+        assert s == '---\n...\n'
+        d = round_trip_load(s)
+        assert d == data
+
+    def test_dump04(self) -> None:
+        data = None
+        s = round_trip_dump(data, explicit_start=True, explicit_end=False)
+        assert s == '---\n...\n'
+        d = round_trip_load(s)
+        assert d == data