Remove a warning that doesn't really make sense here, tweak tests

2 files changed, 7 insertions, 1 deletions

diff --git a/testing/cffi0/backend_tests.py b/testing/cffi0/backend_tests.py
index cf25512..a72e5c9 100644
--- a/testing/cffi0/backend_tests.py
+++ b/testing/cffi0/backend_tests.py
@@ -1229,17 +1229,20 @@ class BackendTests:
     def test_ffi_buffer_comparisons(self):
         ffi = FFI(backend=self.Backend())
         ba = bytearray(range(100, 110))
+        assert ba == memoryview(ba)    # justification for the following
         a = ffi.new("uint8_t[]", list(ba))
+        c = ffi.new("uint8_t[]", [99] + list(ba))
         try:
             b_full = ffi.buffer(a)
             b_short = ffi.buffer(a, 3)
             b_mid = ffi.buffer(a, 6)
+            b_other = ffi.buffer(c, 6)
         except NotImplementedError as e:
             py.test.skip(str(e))
         else:
             content = b_full[:]
             assert content == b_full == ba
-            assert b_short < b_mid < b_full
+            assert b_other < b_short < b_mid < b_full
             assert ba > b_mid > ba[0:2]
             assert b_short != ba[1:4]
 
diff --git a/testing/cffi0/test_ffi_backend.py b/testing/cffi0/test_ffi_backend.py
index b387adb..458e629 100644
--- a/testing/cffi0/test_ffi_backend.py
+++ b/testing/cffi0/test_ffi_backend.py
@@ -191,8 +191,11 @@ class TestBitfield:
         s = ffi.new("struct s1 *")
         setattr(s, name, value)
         assert getattr(s, name) == value
+        raw1 = ffi.buffer(s)[:]
         buff1 = ffi.buffer(s)
         t = lib.try_with_value(fnames.index(name), value)
+        raw2 = ffi.buffer(t, len(raw1))[:]
+        assert raw1 == raw2
         buff2 = ffi.buffer(t, len(buff1))
         assert buff1 == buff2