#!/usr/bin/env python
#
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# Public Domain 2008-2014 WiredTiger, Inc.
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import wiredtiger, wttest
from wtscenario import make_scenarios

# test_prepare11.py
# Test prepare rollback with a reserved update between updates.
class test_prepare11(wttest.WiredTigerTestCase):
    conn_config = 'cache_size=2MB'
    session_config = 'isolation=snapshot'

    key_format_values = [
        ('column', dict(key_format='r', key1=17)),
        ('string-row', dict(key_format='S', key1='key1')),
    ]

    commit_values = [
        ('commit', dict(commit=True)),
        ('rollback', dict(commit=False)),
    ]

    scenarios = make_scenarios(key_format_values, commit_values)

    def test_prepare_update_rollback(self):
        uri = "table:test_prepare11"
        self.session.create(uri, 'key_format={},value_format=S'.format(self.key_format))
        self.session.begin_transaction("isolation=snapshot")

        # In the scenario where we have a reserved update in between two updates, the key repeated
        # flag won't get set and we'll call resolve prepared op on both prepared updates.
        c = self.session.open_cursor(uri, None)
        c[self.key1] = 'xxxx'
        c.set_key(self.key1)
        c.reserve()
        c[self.key1] = 'yyyy'
        self.session.prepare_transaction('prepare_timestamp=10')
        if self.commit:
            self.session.timestamp_transaction('commit_timestamp=' + self.timestamp_str(20))
            self.session.timestamp_transaction('durable_timestamp=' + self.timestamp_str(30))
            self.session.commit_transaction()
        else:
            self.session.rollback_transaction()