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test/py: add various utility code

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Add various common utility functions. These will be used by a forthcoming
re-written UMS test, and a brand-new DFU test.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Stephen Warren 2016-01-22 12:30:12 -07:00 • committed by Simon Glass
parent 3f2faf7327
commit 76b4693928
2 changed files with 190 additions and 0 deletions
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19
test/py/u_boot_console_base.py
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@ -215,6 +215,25 @@ class ConsoleBase(object):
self.log.action('Sending Ctrl-C')
self.run_command(chr(3), wait_for_echo=False, send_nl=False)
def wait_for(self, text):
'''Wait for a pattern to be emitted by U-Boot.
This is useful when a long-running command such as "dfu" is executing,
and it periodically emits some text that should show up at a specific
location in the log file.
Args:
text: The text to wait for; either a string (containing raw text,
not a regular expression) or an re object.
Returns:
Nothing.
'''
if type(text) == type(''):
text = re.escape(text)
self.p.expect([text])
def drain_console(self):
'''Read from and log the U-Boot console for a short time.