def test_run_cmd_cache(self):
"""Test caching for run_cmd"""
(first_out, ec) = run_cmd("ulimit -u")
self.assertEqual(ec, 0)
(cached_out, ec) = run_cmd("ulimit -u")
self.assertEqual(ec, 0)
self.assertEqual(first_out, cached_out)
# inject value into cache to check whether executing command again really returns cached value
run_cmd.update_cache({("ulimit -u", None): ("123456", 123)})
(cached_out, ec) = run_cmd("ulimit -u")
self.assertEqual(ec, 123)
self.assertEqual(cached_out, "123456")
# also test with command that uses stdin
(out, ec) = run_cmd("cat", inp='foo')
self.assertEqual(ec, 0)
self.assertEqual(out, 'foo')
# inject different output for cat with 'foo' as stdin to check whether cached value is used
run_cmd.update_cache({('cat', 'foo'): ('bar', 123)})
(cached_out, ec) = run_cmd("cat", inp='foo')
self.assertEqual(ec, 123)
self.assertEqual(cached_out, 'bar')
run_cmd.clear_cache()
def test_run_cmd_cache(self):
"""Test caching for run_cmd"""
(first_out, ec) = run_cmd("ulimit -u")
self.assertEqual(ec, 0)
(cached_out, ec) = run_cmd("ulimit -u")
self.assertEqual(ec, 0)
self.assertEqual(first_out, cached_out)
# inject value into cache to check whether executing command again really returns cached value
run_cmd.update_cache({("ulimit -u", None): ("123456", 123)})
(cached_out, ec) = run_cmd("ulimit -u")
self.assertEqual(ec, 123)
self.assertEqual(cached_out, "123456")
# also test with command that uses stdin
(out, ec) = run_cmd("cat", inp='foo')
self.assertEqual(ec, 0)
self.assertEqual(out, 'foo')
# inject different output for cat with 'foo' as stdin to check whether cached value is used
run_cmd.update_cache({('cat', 'foo'): ('bar', 123)})
(cached_out, ec) = run_cmd("cat", inp='foo')
self.assertEqual(ec, 123)
self.assertEqual(cached_out, 'bar')
run_cmd.clear_cache()