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419ddf0cfa
If multiple processes access the same database file concurrently, Limbo fails with:
```
LockingError("Failed locking file. File is locked by another process
```
Make test driver robust against that.
63 lines
1.9 KiB
Python
Executable File
63 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env -S python3 -u
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import json
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import limbo
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from utils import generate_random_value
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from antithesis.random import get_random
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# Get initial state
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try:
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con_init = limbo.connect('init_state.db')
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except Exception as e:
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print(f"Error connecting to database: {e}")
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exit(0)
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cur_init = con_init.cursor()
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tbl_len = cur_init.execute('SELECT count FROM tables').fetchone()[0]
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selected_tbl = get_random() % tbl_len
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tbl_schema = json.loads(cur_init.execute(f'SELECT schema FROM schemas WHERE tbl = {selected_tbl}').fetchone()[0])
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# get primary key column
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pk = tbl_schema['pk']
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# get non-pk columns
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cols = [f'col_{col}' for col in range(tbl_schema['colCount']) if col != pk]
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# print(cols)
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try:
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con = limbo.connect('stress_composer.db')
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except limbo.OperationalError as e:
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print(f'Failed to open stress_composer.db. Exiting... {e}')
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exit(0)
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cur = con.cursor()
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# insert up to 100 rows in the selected table
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updates = get_random() % 100
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print(f'Attempt to update {updates} rows in tbl_{selected_tbl}...')
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for i in range(updates):
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set_clause = ''
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if tbl_schema['colCount'] == 1:
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set_clause = f"col_{pk} = {generate_random_value(tbl_schema[f'col_{pk}']['data_type'])}"
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else:
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values = []
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for col in cols:
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# print(col)
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values.append(f"{col} = {generate_random_value(tbl_schema[col]['data_type'])}")
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set_clause = ', '.join(values)
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where_clause = f"col_{pk} = {generate_random_value(tbl_schema[f'col_{pk}']['data_type'])}"
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# print(where_clause)
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try:
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cur.execute(f'''
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UPDATE tbl_{selected_tbl} SET {set_clause} WHERE {where_clause}
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''')
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except limbo.OperationalError as e:
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if "UNIQUE constraint failed" in str(e):
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# Ignore UNIQUE constraint violations
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pass
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else:
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# Re-raise other operational errors
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raise
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