source = '''# line 1 'A module docstring.' import sys, inspect # line 5 # line 7 def spam(a, b, c, d=3, (e, (f,))=(4, (5,)), *g, **h): eggs(b + d, c + f) # line 11 def eggs(x, y): "A docstring." global fr, st fr = inspect.currentframe() st = inspect.stack() p = x q = y / 0 # line 20 class StupidGit: """A longer, indented docstring.""" # line 27 def abuse(self, a, b, c): """Another \tdocstring containing \ttabs \t """ self.argue(a, b, c) # line 40 def argue(self, a, b, c): try: spam(a, b, c) except: self.ex = sys.exc_info() self.tr = inspect.trace() # line 48 class MalodorousPervert(StupidGit): pass class ParrotDroppings: pass class FesteringGob(MalodorousPervert, ParrotDroppings): pass ''' # Functions tested in this suite: # ismodule, isclass, ismethod, isfunction, istraceback, isframe, iscode, # isbuiltin, isroutine, getmembers, getdoc, getfile, getmodule, # getsourcefile, getcomments, getsource, getclasstree, getargspec, # getargvalues, formatargspec, formatargvalues, currentframe, stack, trace # isdatadescriptor from test.test_support import TestFailed, TESTFN import sys, imp, os, string def test(assertion, message, *args): if not assertion: raise TestFailed, message % args import inspect file = open(TESTFN, 'w') file.write(source) file.close() # Note that load_source creates file TESTFN+'c' or TESTFN+'o'. mod = imp.load_source('testmod', TESTFN) files_to_clean_up = [TESTFN, TESTFN + 'c', TESTFN + 'o'] def istest(func, exp): obj = eval(exp) test(func(obj), '%s(%s)' % (func.__name__, exp)) for other in [inspect.isbuiltin, inspect.isclass, inspect.iscode, inspect.isframe, inspect.isfunction, inspect.ismethod, inspect.ismodule, inspect.istraceback]: if other is not func: test(not other(obj), 'not %s(%s)' % (other.__name__, exp)) git = mod.StupidGit() try: 1/0 except: tb = sys.exc_traceback istest(inspect.isbuiltin, 'sys.exit') istest(inspect.isbuiltin, '[].append') istest(inspect.isclass, 'mod.StupidGit') istest(inspect.iscode, 'mod.spam.func_code') istest(inspect.isframe, 'tb.tb_frame') istest(inspect.isfunction, 'mod.spam') istest(inspect.ismethod, 'mod.StupidGit.abuse') istest(inspect.ismethod, 'git.argue') istest(inspect.ismodule, 'mod') istest(inspect.istraceback, 'tb') import __builtin__ istest(inspect.isdatadescriptor, '__builtin__.file.closed') istest(inspect.isdatadescriptor, '__builtin__.file.softspace') test(inspect.isroutine(mod.spam), 'isroutine(mod.spam)') test(inspect.isroutine([].count), 'isroutine([].count)') classes = inspect.getmembers(mod, inspect.isclass) test(classes == [('FesteringGob', mod.FesteringGob), ('MalodorousPervert', mod.MalodorousPervert), ('ParrotDroppings', mod.ParrotDroppings), ('StupidGit', mod.StupidGit)], 'class list') tree = inspect.getclasstree(map(lambda x: x[1], classes), 1) test(tree == [(mod.ParrotDroppings, ()), (mod.StupidGit, ()), [(mod.MalodorousPervert, (mod.StupidGit,)), [(mod.FesteringGob, (mod.MalodorousPervert, mod.ParrotDroppings)) ] ] ], 'class tree') functions = inspect.getmembers(mod, inspect.isfunction) test(functions == [('eggs', mod.eggs), ('spam', mod.spam)], 'function list') test(inspect.getdoc(mod) == 'A module docstring.', 'getdoc(mod)') test(inspect.getcomments(mod) == '# line 1\n', 'getcomments(mod)') test(inspect.getmodule(mod.StupidGit) == mod, 'getmodule(mod.StupidGit)') test(inspect.getfile(mod.StupidGit) == TESTFN, 'getfile(mod.StupidGit)') test(inspect.getsourcefile(mod.spam) == TESTFN, 'getsourcefile(mod.spam)') test(inspect.getsourcefile(git.abuse) == TESTFN, 'getsourcefile(git.abuse)') def sourcerange(top, bottom): lines = string.split(source, '\n') return string.join(lines[top-1:bottom], '\n') + '\n' test(inspect.getsource(git.abuse) == sourcerange(29, 39), 'getsource(git.abuse)') test(inspect.getsource(mod.StupidGit) == sourcerange(21, 46), 'getsource(mod.StupidGit)') test(inspect.getdoc(mod.StupidGit) == 'A longer,\n\nindented\n\ndocstring.', 'getdoc(mod.StupidGit)') test(inspect.getdoc(git.abuse) == 'Another\n\ndocstring\n\ncontaining\n\ntabs', 'getdoc(git.abuse)') test(inspect.getcomments(mod.StupidGit) == '# line 20\n', 'getcomments(mod.StupidGit)') git.abuse(7, 8, 9) istest(inspect.istraceback, 'git.ex[2]') istest(inspect.isframe, 'mod.fr') test(len(git.tr) == 3, 'trace() length') test(git.tr[0][1:] == (TESTFN, 43, 'argue', [' spam(a, b, c)\n'], 0), 'trace() row 2') test(git.tr[1][1:] == (TESTFN, 9, 'spam', [' eggs(b + d, c + f)\n'], 0), 'trace() row 2') test(git.tr[2][1:] == (TESTFN, 18, 'eggs', [' q = y / 0\n'], 0), 'trace() row 3') test(len(mod.st) >= 5, 'stack() length') test(mod.st[0][1:] == (TESTFN, 16, 'eggs', [' st = inspect.stack()\n'], 0), 'stack() row 1') test(mod.st[1][1:] == (TESTFN, 9, 'spam', [' eggs(b + d, c + f)\n'], 0), 'stack() row 2') test(mod.st[2][1:] == (TESTFN, 43, 'argue', [' spam(a, b, c)\n'], 0), 'stack() row 3') test(mod.st[3][1:] == (TESTFN, 39, 'abuse', [' self.argue(a, b, c)\n'], 0), 'stack() row 4') args, varargs, varkw, locals = inspect.getargvalues(mod.fr) test(args == ['x', 'y'], 'mod.fr args') test(varargs == None, 'mod.fr varargs') test(varkw == None, 'mod.fr varkw') test(locals == {'x': 11, 'p': 11, 'y': 14}, 'mod.fr locals') test(inspect.formatargvalues(args, varargs, varkw, locals) == '(x=11, y=14)', 'mod.fr formatted argvalues') args, varargs, varkw, locals = inspect.getargvalues(mod.fr.f_back) test(args == ['a', 'b', 'c', 'd', ['e', ['f']]], 'mod.fr.f_back args') test(varargs == 'g', 'mod.fr.f_back varargs') test(varkw == 'h', 'mod.fr.f_back varkw') test(inspect.formatargvalues(args, varargs, varkw, locals) == '(a=7, b=8, c=9, d=3, (e=4, (f=5,)), *g=(), **h={})', 'mod.fr.f_back formatted argvalues') for fname in files_to_clean_up: try: os.unlink(fname) except: pass # Test for decorators as well. source = r""" def wrap(foo=None): def wrapper(func): return func return wrapper def replace(func): def insteadfunc(): print 'hello' return insteadfunc # two decorators, one with argument @wrap() @wrap(wrap) def wrapped(): pass @replace def gone(): pass""" file = open(TESTFN + "2", "w") file.write(source) file.close() files_to_clean_up = [TESTFN + "2", TESTFN + '2c', TESTFN + '2o'] mod2 = imp.load_source("testmod3", TESTFN + "2") test(inspect.getsource(mod2.wrapped) == sourcerange(13, 16), "inspect.getsource(mod.wrapped)") test(inspect.getsource(mod2.gone) == sourcerange(8, 9), "inspect.getsource(mod.gone)") for fname in files_to_clean_up: try: os.unlink(fname) except: pass # Test classic-class method resolution order. class A: pass class B(A): pass class C(A): pass class D(B, C): pass expected = (D, B, A, C) got = inspect.getmro(D) test(expected == got, "expected %r mro, got %r", expected, got) # The same w/ new-class MRO. class A(object): pass class B(A): pass class C(A): pass class D(B, C): pass expected = (D, B, C, A, object) got = inspect.getmro(D) test(expected == got, "expected %r mro, got %r", expected, got) # Test classify_class_attrs. def attrs_wo_objs(cls): return [t[:3] for t in inspect.classify_class_attrs(cls)] class A: def s(): pass s = staticmethod(s) def c(cls): pass c = classmethod(c) def getp(self): pass p = property(getp) def m(self): pass def m1(self): pass datablob = '1' attrs = attrs_wo_objs(A) test(('s', 'static method', A) in attrs, 'missing static method') test(('c', 'class method', A) in attrs, 'missing class method') test(('p', 'property', A) in attrs, 'missing property') test(('m', 'method', A) in attrs, 'missing plain method') test(('m1', 'method', A) in attrs, 'missing plain method') test(('datablob', 'data', A) in attrs, 'missing data') class B(A): def m(self): pass attrs = attrs_wo_objs(B) test(('s', 'static method', A) in attrs, 'missing static method') test(('c', 'class method', A) in attrs, 'missing class method') test(('p', 'property', A) in attrs, 'missing property') test(('m', 'method', B) in attrs, 'missing plain method') test(('m1', 'method', A) in attrs, 'missing plain method') test(('datablob', 'data', A) in attrs, 'missing data') class C(A): def m(self): pass def c(self): pass attrs = attrs_wo_objs(C) test(('s', 'static method', A) in attrs, 'missing static method') test(('c', 'method', C) in attrs, 'missing plain method') test(('p', 'property', A) in attrs, 'missing property') test(('m', 'method', C) in attrs, 'missing plain method') test(('m1', 'method', A) in attrs, 'missing plain method') test(('datablob', 'data', A) in attrs, 'missing data') class D(B, C): def m1(self): pass attrs = attrs_wo_objs(D) test(('s', 'static method', A) in attrs, 'missing static method') test(('c', 'class method', A) in attrs, 'missing class method') test(('p', 'property', A) in attrs, 'missing property') test(('m', 'method', B) in attrs, 'missing plain method') test(('m1', 'method', D) in attrs, 'missing plain method') test(('datablob', 'data', A) in attrs, 'missing data') # Repeat all that, but w/ new-style classes. class A(object): def s(): pass s = staticmethod(s) def c(cls): pass c = classmethod(c) def getp(self): pass p = property(getp) def m(self): pass def m1(self): pass datablob = '1' attrs = attrs_wo_objs(A) test(('s', 'static method', A) in attrs, 'missing static method') test(('c', 'class method', A) in attrs, 'missing class method') test(('p', 'property', A) in attrs, 'missing property') test(('m', 'method', A) in attrs, 'missing plain method') test(('m1', 'method', A) in attrs, 'missing plain method') test(('datablob', 'data', A) in attrs, 'missing data') class B(A): def m(self): pass attrs = attrs_wo_objs(B) test(('s', 'static method', A) in attrs, 'missing static method') test(('c', 'class method', A) in attrs, 'missing class method') test(('p', 'property', A) in attrs, 'missing property') test(('m', 'method', B) in attrs, 'missing plain method') test(('m1', 'method', A) in attrs, 'missing plain method') test(('datablob', 'data', A) in attrs, 'missing data') class C(A): def m(self): pass def c(self): pass attrs = attrs_wo_objs(C) test(('s', 'static method', A) in attrs, 'missing static method') test(('c', 'method', C) in attrs, 'missing plain method') test(('p', 'property', A) in attrs, 'missing property') test(('m', 'method', C) in attrs, 'missing plain method') test(('m1', 'method', A) in attrs, 'missing plain method') test(('datablob', 'data', A) in attrs, 'missing data') class D(B, C): def m1(self): pass attrs = attrs_wo_objs(D) test(('s', 'static method', A) in attrs, 'missing static method') test(('c', 'method', C) in attrs, 'missing plain method') test(('p', 'property', A) in attrs, 'missing property') test(('m', 'method', B) in attrs, 'missing plain method') test(('m1', 'method', D) in attrs, 'missing plain method') test(('datablob', 'data', A) in attrs, 'missing data') args, varargs, varkw, defaults = inspect.getargspec(mod.eggs) test(args == ['x', 'y'], 'mod.eggs args') test(varargs == None, 'mod.eggs varargs') test(varkw == None, 'mod.eggs varkw') test(defaults == None, 'mod.eggs defaults') test(inspect.formatargspec(args, varargs, varkw, defaults) == '(x, y)', 'mod.eggs formatted argspec') args, varargs, varkw, defaults = inspect.getargspec(mod.spam) test(args == ['a', 'b', 'c', 'd', ['e', ['f']]], 'mod.spam args') test(varargs == 'g', 'mod.spam varargs') test(varkw == 'h', 'mod.spam varkw') test(defaults == (3, (4, (5,))), 'mod.spam defaults') test(inspect.formatargspec(args, varargs, varkw, defaults) == '(a, b, c, d=3, (e, (f,))=(4, (5,)), *g, **h)', 'mod.spam formatted argspec') args, varargs, varkw, defaults = inspect.getargspec(A.m) test(args == ['self'], 'A.m args') test(varargs is None, 'A.m varargs') test(varkw is None, 'A.m varkw') test(defaults is None, 'A.m defaults') # Doc/lib/libinspect.tex claims there are 11 such functions count = len(filter(lambda x:x.startswith('is'), dir(inspect))) test(count == 11, "There are %d (not 11) is* functions", count) def sublistOfOne((foo)): return 1 args, varargs, varkw, defaults = inspect.getargspec(sublistOfOne) test(args == [['foo']], 'sublistOfOne args') test(varargs is None, 'sublistOfOne varargs') test(varkw is None, 'sublistOfOne varkw') test(defaults is None, 'sublistOfOn defaults')