- add an exclusion for "floats to four decimals", backported from 0.9 and applies to

firebird

2 files changed, 10 insertions, 0 deletions

diff --git a/lib/sqlalchemy/testing/requirements.py b/lib/sqlalchemy/testing/requirements.py
index b2c921f89..64bc300e0 100644
--- a/lib/sqlalchemy/testing/requirements.py
+++ b/lib/sqlalchemy/testing/requirements.py
@@ -393,6 +393,15 @@ class SuiteRequirements(Requirements):
         return exclusions.closed()
 
     @property
+    def floats_to_four_decimals(self):
+        """target backend can return a floating-point number with four
+        significant digits (such as 15.7563) accurately
+        (i.e. without FP inaccuracies, such as 15.75629997253418).
+
+        """
+        return exclusions.open()
+
+    @property
     def text_type(self):
         """Target database must support an unbounded Text() "
         "type such as TEXT or CLOB"""
diff --git a/lib/sqlalchemy/testing/suite/test_types.py b/lib/sqlalchemy/testing/suite/test_types.py
index 0716b1b91..4733e6666 100644
--- a/lib/sqlalchemy/testing/suite/test_types.py
+++ b/lib/sqlalchemy/testing/suite/test_types.py
@@ -282,6 +282,7 @@ class NumericTest(fixtures.TestBase):
             [15.7563, None],
         )
 
+    @testing.requires.floats_to_four_decimals
     def test_float_as_decimal(self):
         self._do_test(
             Float(precision=8, asdecimal=True),