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PYTHON-2054 Remove unused example TestTransactionExamples.test_transactions_beta
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test/test_examples.py

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Original file line numberDiff line numberDiff line change
@@ -1074,83 +1074,6 @@ def callback(session):
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# End Transactions withTxn API Example 1
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1077-
@client_context.require_transactions
1078-
def test_transactions_beta(self):
1079-
# Transaction beta examples
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client = self.client
1081-
self.addCleanup(client.drop_database, "test")
1082-
1083-
db = client.test
1084-
shipment = db.create_collection("shipment")
1085-
inventory = db.create_collection("inventory")
1086-
inventory.insert_one({"sku": "abc123", "qty": 500})
1087-
1088-
# Start Beta Transaction Example 1
1089-
db = client.test
1090-
with client.start_session() as s:
1091-
with s.start_transaction():
1092-
db.inventory.update_one({'sku': 'abc123'},
1093-
{'$inc': {'qty': -100}},
1094-
session=s)
1095-
db.shipment.insert_one({'sku': 'abc123', 'qty': 100},
1096-
session=s)
1097-
# End Beta Transaction Example 1
1098-
1099-
# Beta Transaction Example 1 with explicit start, commit, and abort.
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with client.start_session() as s:
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s.start_transaction()
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try:
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db.inventory.update_one({'sku': 'abc123'},
1104-
{'$inc': {'qty': -100}},
1105-
session=s)
1106-
db.shipment.insert_one({'sku': 'abc123', 'qty': 100},
1107-
session=s)
1108-
except Exception:
1109-
s.abort_transaction()
1110-
raise
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s.commit_transaction()
1112-
1113-
# Start Beta Transaction Example 2
1114-
db = client.test
1115-
shipment = db.get_collection('shipment',
1116-
write_concern=WriteConcern(w='majority'))
1117-
1118-
# In the following block, the following write concerns are used:
1119-
# the update_one and insert_one operations uses w = 1,
1120-
# the transaction commit/abort uses w = 'majority'.
1121-
with client.start_session() as s:
1122-
with s.start_transaction(write_concern=WriteConcern(w='majority')):
1123-
inventory.update_one({'sku': 'abc123'},
1124-
{'$inc': {'qty': -100}},
1125-
session=s)
1126-
shipment.insert_one({'sku': 'abc123', 'qty': 100}, session=s)
1127-
# End Beta Transaction Example 2
1128-
1129-
# Start Beta Transaction Example 3
1130-
def run_transaction(session, txn_callback):
1131-
with session.start_transaction():
1132-
txn_callback(session)
1133-
1134-
def run_transaction_with_retry(session, txn_callback):
1135-
try:
1136-
run_transaction(session, txn_callback)
1137-
except (OperationFailure, ConnectionFailure) as exc:
1138-
if exc.has_error_label("TransientTransactionError"):
1139-
# Retry the entire transaction on temporary transaction
1140-
# failures.
1141-
run_transaction(session, txn_callback)
1142-
else:
1143-
raise
1144-
1145-
def shipment_transaction(session):
1146-
inventory.update_one({'sku': 'abc123'}, {'$inc': {'qty': -100}},
1147-
session=session)
1148-
shipment.insert_one({'sku': 'abc123', 'qty': 100}, session=session)
1149-
1150-
with client.start_session() as session:
1151-
run_transaction_with_retry(session, shipment_transaction)
1152-
# End Beta Transaction Example 3
1153-
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class TestCausalConsistencyExamples(IntegrationTest):
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@client_context.require_version_min(3, 6, 0)

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