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-rw-r--r--lib/sqlalchemy/testing/requirements.py9
-rw-r--r--lib/sqlalchemy/testing/suite/test_types.py1
2 files changed, 10 insertions, 0 deletions
diff --git a/lib/sqlalchemy/testing/requirements.py b/lib/sqlalchemy/testing/requirements.py
index 0350cd06b..3a299b0db 100644
--- a/lib/sqlalchemy/testing/requirements.py
+++ b/lib/sqlalchemy/testing/requirements.py
@@ -373,6 +373,15 @@ 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 0d8bfdc0f..0de462eb7 100644
--- a/lib/sqlalchemy/testing/suite/test_types.py
+++ b/lib/sqlalchemy/testing/suite/test_types.py
@@ -283,6 +283,7 @@ 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),