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import compiler
from compiler.ast import flatten
import os, sys, time, unittest
import test.test_support
from random import random
# How much time in seconds can pass before we print a 'Still working' message.
_PRINT_WORKING_MSG_INTERVAL = 5 * 60
class CompilerTest(unittest.TestCase):
def testCompileLibrary(self):
# A simple but large test. Compile all the code in the
# standard library and its test suite. This doesn't verify
# that any of the code is correct, merely the compiler is able
# to generate some kind of code for it.
next_time = time.time() + _PRINT_WORKING_MSG_INTERVAL
libdir = os.path.dirname(unittest.__file__)
testdir = os.path.dirname(test.test_support.__file__)
for dir in [libdir, testdir]:
for basename in os.listdir(dir):
# Print still working message since this test can be really slow
if next_time <= time.time():
next_time = time.time() + _PRINT_WORKING_MSG_INTERVAL
print >>sys.__stdout__, \
' testCompileLibrary still working, be patient...'
sys.__stdout__.flush()
if not basename.endswith(".py"):
continue
if not TEST_ALL and random() < 0.98:
continue
path = os.path.join(dir, basename)
if test.test_support.verbose:
print "compiling", path
f = open(path, "U")
buf = f.read()
f.close()
if "badsyntax" in basename or "bad_coding" in basename:
self.assertRaises(SyntaxError, compiler.compile,
buf, basename, "exec")
else:
try:
compiler.compile(buf, basename, "exec")
except Exception, e:
args = list(e.args)
args[0] += "[in file %s]" % basename
e.args = tuple(args)
raise
def testNewClassSyntax(self):
compiler.compile("class foo():pass\n\n","<string>","exec")
def testYieldExpr(self):
compiler.compile("def g(): yield\n\n", "<string>", "exec")
def testDefaultArgs(self):
self.assertRaises(SyntaxError, compiler.parse, "def foo(a=1, b): pass")
def testLineNo(self):
# Test that all nodes except Module have a correct lineno attribute.
filename = __file__
if filename.endswith(".pyc") or filename.endswith(".pyo"):
filename = filename[:-1]
tree = compiler.parseFile(filename)
self.check_lineno(tree)
def check_lineno(self, node):
try:
self._check_lineno(node)
except AssertionError:
print node.__class__, node.lineno
raise
def _check_lineno(self, node):
if not node.__class__ in NOLINENO:
self.assert_(isinstance(node.lineno, int),
"lineno=%s on %s" % (node.lineno, node.__class__))
self.assert_(node.lineno > 0,
"lineno=%s on %s" % (node.lineno, node.__class__))
for child in node.getChildNodes():
self.check_lineno(child)
def testFlatten(self):
self.assertEquals(flatten([1, [2]]), [1, 2])
self.assertEquals(flatten((1, (2,))), [1, 2])
NOLINENO = (compiler.ast.Module, compiler.ast.Stmt, compiler.ast.Discard)
###############################################################################
# code below is just used to trigger some possible errors, for the benefit of
# testLineNo
###############################################################################
class Toto:
"""docstring"""
pass
a, b = 2, 3
[c, d] = 5, 6
l = [(x, y) for x, y in zip(range(5), range(5,10))]
l[0]
l[3:4]
if l:
pass
else:
a, b = b, a
try:
print yo
except:
yo = 3
else:
yo += 3
try:
a += b
finally:
b = 0
from math import *
###############################################################################
def test_main():
global TEST_ALL
TEST_ALL = test.test_support.is_resource_enabled("compiler")
test.test_support.run_unittest(CompilerTest)
if __name__ == "__main__":
test_main()
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