| """Supporting definitions for the Python regression test.""" |
| |
| |
| class Error(Exception): |
| """Base class for regression test exceptions.""" |
| |
| class TestFailed(Error): |
| """Test failed.""" |
| |
| class TestSkipped(Error): |
| """Test skipped. |
| |
| This can be raised to indicate that a test was deliberatly |
| skipped, but not because a feature wasn't available. For |
| example, if some resource can't be used, such as the network |
| appears to be unavailable, this should be raised instead of |
| TestFailed. |
| """ |
| |
| verbose = 1 # Flag set to 0 by regrtest.py |
| use_large_resources = 1 # Flag set to 0 by regrtest.py |
| |
| def unload(name): |
| import sys |
| try: |
| del sys.modules[name] |
| except KeyError: |
| pass |
| |
| def forget(modname): |
| unload(modname) |
| import sys, os |
| for dirname in sys.path: |
| try: |
| os.unlink(os.path.join(dirname, modname + '.pyc')) |
| except os.error: |
| pass |
| |
| FUZZ = 1e-6 |
| |
| def fcmp(x, y): # fuzzy comparison function |
| if type(x) == type(0.0) or type(y) == type(0.0): |
| try: |
| x, y = coerce(x, y) |
| fuzz = (abs(x) + abs(y)) * FUZZ |
| if abs(x-y) <= fuzz: |
| return 0 |
| except: |
| pass |
| elif type(x) == type(y) and type(x) in (type(()), type([])): |
| for i in range(min(len(x), len(y))): |
| outcome = fcmp(x[i], y[i]) |
| if outcome != 0: |
| return outcome |
| return cmp(len(x), len(y)) |
| return cmp(x, y) |
| |
| TESTFN = '@test' # Filename used for testing |
| from os import unlink |
| |
| def findfile(file, here=__file__): |
| import os |
| if os.path.isabs(file): |
| return file |
| import sys |
| path = sys.path |
| path = [os.path.dirname(here)] + path |
| for dn in path: |
| fn = os.path.join(dn, file) |
| if os.path.exists(fn): return fn |
| return file |
| |
| def verify(condition, reason='test failed'): |
| """Verify that condition is true. If not, raise TestFailed. |
| |
| The optional argument reason can be given to provide |
| a better error text. |
| """ |
| |
| if not condition: |
| raise TestFailed(reason) |