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path: root/gnu/packages/patches/python-alembic-exceptions-cause.patch
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Fix a test failure with newer versions of SQLalchemy due to missing
"causes" for some exceptions.

diff --git a/alembic/operations/ops.py b/alembic/operations/ops.py
index 5ec2762..7129472 100644
--- a/alembic/operations/ops.py
+++ b/alembic/operations/ops.py
@@ -108,6 +108,7 @@ def from_constraint(cls, constraint):
             "primary_key_constraint": "primary",
             "check_constraint": "check",
             "column_check_constraint": "check",
+            "table_or_column_check_constraint": "check",
         }
 
         constraint_table = sqla_compat._table_for_constraint(constraint)
@@ -707,6 +708,7 @@ def batch_create_foreign_key(
     "create_check_constraint", "batch_create_check_constraint"
 )
 @AddConstraintOp.register_add_constraint("check_constraint")
+@AddConstraintOp.register_add_constraint("table_or_column_check_constraint")
 @AddConstraintOp.register_add_constraint("column_check_constraint")
 class CreateCheckConstraintOp(AddConstraintOp):
     """Represent a create check constraint operation."""
diff --git a/alembic/testing/assertions.py b/alembic/testing/assertions.py
index 3dc08f0..a78e5e8 100644
--- a/alembic/testing/assertions.py
+++ b/alembic/testing/assertions.py
@@ -2,10 +2,9 @@
 
 import re
 
+from sqlalchemy import util
 from sqlalchemy.engine import default
 from sqlalchemy.testing.assertions import _expect_warnings
-from sqlalchemy.testing.assertions import assert_raises  # noqa
-from sqlalchemy.testing.assertions import assert_raises_message  # noqa
 from sqlalchemy.testing.assertions import eq_  # noqa
 from sqlalchemy.testing.assertions import is_  # noqa
 from sqlalchemy.testing.assertions import is_false  # noqa
@@ -17,6 +16,29 @@
 from ..util.compat import py3k
 
 
+def assert_raises(except_cls, callable_, *args, **kw):
+    try:
+        callable_(*args, **kw)
+        success = False
+    except except_cls:
+        success = True
+
+    # assert outside the block so it works for AssertionError too !
+    assert success, "Callable did not raise an exception"
+
+
+def assert_raises_message(except_cls, msg, callable_, *args, **kwargs):
+    try:
+        callable_(*args, **kwargs)
+        assert False, "Callable did not raise an exception"
+    except except_cls as e:
+        assert re.search(msg, util.text_type(e), re.UNICODE), "%r !~ %s" % (
+            msg,
+            e,
+        )
+        print(util.text_type(e).encode("utf-8"))
+
+
 def eq_ignore_whitespace(a, b, msg=None):
     # sqlalchemy.testing.assertion has this function
     # but not with the special "!U" detection part