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custom exception types

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This commit is contained in:
meejah
2018-04-24 10:58:26 -06:00
parent 6352db9c01
commit a0546fff7b
1 changed files with 48 additions and 6 deletions
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54
integration/util.py
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@ -200,16 +200,56 @@ def _create_node(reactor, request, temp_dir, introducer_furl, flog_gatherer, nam
class UnwantedFilesException(Exception): class UnwantedFilesException(Exception):
"""
While waiting for some files to appear, some undesired files
appeared instead (or in addition).
"""
def __init__(self, waiting, unwanted): def __init__(self, waiting, unwanted):
super(self, Exception).__init__( super(self, Exception).__init__(
self, self,
u"While waiting for '{}', unwanted files appeared: {}".format( u"While waiting for '{}', unwanted files appeared: {}".format(
waiting, waiting,
', '.join(unwanted), u', '.join(unwanted),
) )
) )
class ExpectedFileMismatchException(Exception):
"""
A file or files we wanted weren't found within the timeout.
"""
def __init__(self, path, timeout):
super(self, Exception).__init__(
self,
u"Contents of '{}' mismatched after {}s".format(path, timeout),
)
class ExpectedFileUnfoundException(Exception):
"""
A file or files we expected to find didn't appear within the
timeout.
"""
def __init__(self, path, timeout):
super(self, Exception).__init__(
self,
u"Didn't find '{}' after {}s".format(path, timeout),
)
class FileShouldVanishException(Exception):
"""
A file or files we expected to disappear did not within the
timeout
"""
def __init__(self, path, timeout):
super(self, Exception).__init__(
self,
u"'{}' still exists after {}s".format(path, timeout),
)
def await_file_contents(path, contents, timeout=15, error_if=None): def await_file_contents(path, contents, timeout=15, error_if=None):
""" """
wait up to `timeout` seconds for the file at `path` (any path-like wait up to `timeout` seconds for the file at `path` (any path-like
@ -240,8 +280,8 @@ def await_file_contents(path, contents, timeout=15, error_if=None):
print(" got: {}".format(current.replace('\n', ' '))) print(" got: {}".format(current.replace('\n', ' ')))
time.sleep(1) time.sleep(1)
if exists(path): if exists(path):
raise Exception("Contents of '{}' mismatched after {}s".format(path, timeout)) raise ExpectedFileMismatchException(path, timeout)
raise Exception("Didn't find '{}' after {}s".format(path, timeout)) raise ExpectedFileUnfoundException(path, timeout)
def await_files_exist(paths, timeout=15, await_all=False): def await_files_exist(paths, timeout=15, await_all=False):
@ -267,8 +307,10 @@ def await_files_exist(paths, timeout=15, await_all=False):
return found return found
time.sleep(1) time.sleep(1)
if await_all: if await_all:
raise Exception("Didn't find {} after {}s".format(' and '.join(paths), timeout)) nice_paths = ' and '.join(paths)
raise Exception("Didn't find {} after {}s".format(' or '.join(paths), timeout)) else:
nice_paths = ' or '.join(paths)
raise ExpectedFileUnfoundException(nice_paths, timeout)
def await_file_vanishes(path, timeout=10): def await_file_vanishes(path, timeout=10):
@ -278,4 +320,4 @@ def await_file_vanishes(path, timeout=10):
if not exists(path): if not exists(path):
return return
time.sleep(1) time.sleep(1)
raise Exception("'{}' still exists after {}s".format(path, timeout)) raise FileShouldVanishException(path, timeout)