Testing error if sqlite3 not installed

[Andrew Laski]

======================================================================
FAIL: nova.tests.db.test_sqlite.TestSqlite.test_big_int_mapping
tags: worker-1
----------------------------------------------------------------------
Empty attachments:
  pythonlogging:''
  stderr
  stdout

Traceback (most recent call last):
  File "nova/tests/db/test_sqlite.py", line 51, in test_big_int_mapping
    output, _ = utils.execute(get_schema_cmd, shell=True)
  File "nova/utils.py", line 178, in execute
    return processutils.execute(*cmd, **kwargs)
  File "nova/openstack/common/processutils.py", line 178, in execute
    cmd=' '.join(cmd))
ProcessExecutionError: Unexpected error while running command.
Command: sqlite3 test_bigint.sqlite '.schema'
Exit code: 127
Stdout: ''
Stderr: '/bin/sh: 1: sqlite3: not found\n'
======================================================================

The test should handle the lack of sqlite3 gracefully, in the same manner as the mysql or postgresql tests.

[Andrew Laski (alaski)]

It doesn't affect Jenkins, but can cause a local test failure for devs.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/47463

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/47463
Committed: http://github.com/openstack/nova/commit/e9704d0f019be530d5952844feecaf0ed4e31914
Submitter: Jenkins
Branch: master

commit e9704d0f019be530d5952844feecaf0ed4e31914
Author: Andrew Laski <email address hidden>
Date: Thu Sep 19 16:24:15 2013 -0400

    Skip test if sqlite3 not installed

    The test is attempting to run the sqlite3 binary during its test run.
    Since there's no guarantee that it's installed it should catch an
    execution error and skip.

    Change-Id: I9f4ed1872fcfe3b8393644a77692dbfcce8ecab2
    Closes-bug: 1227868