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import os.path
import unittest
from Cython.TestUtils import TransformTest
from Cython.Compiler.ParseTreeTransforms import *
from Cython.Compiler.ParseTreeTransforms import _calculate_pickle_checksums
from Cython.Compiler.Nodes import *
from Cython.Compiler import Main, Symtab
class TestNormalizeTree(TransformTest):
def test_parserbehaviour_is_what_we_coded_for(self):
t = self.fragment(u"if x: y").root
self.assertLines(u"""
(root): StatListNode
stats[0]: IfStatNode
if_clauses[0]: IfClauseNode
condition: NameNode
body: ExprStatNode
expr: NameNode
""", self.treetypes(t))
def test_wrap_singlestat(self):
t = self.run_pipeline([NormalizeTree(None)], u"if x: y")
self.assertLines(u"""
(root): StatListNode
stats[0]: IfStatNode
if_clauses[0]: IfClauseNode
condition: NameNode
body: StatListNode
stats[0]: ExprStatNode
expr: NameNode
""", self.treetypes(t))
def test_wrap_multistat(self):
t = self.run_pipeline([NormalizeTree(None)], u"""
if z:
x
y
""")
self.assertLines(u"""
(root): StatListNode
stats[0]: IfStatNode
if_clauses[0]: IfClauseNode
condition: NameNode
body: StatListNode
stats[0]: ExprStatNode
expr: NameNode
stats[1]: ExprStatNode
expr: NameNode
""", self.treetypes(t))
def test_statinexpr(self):
t = self.run_pipeline([NormalizeTree(None)], u"""
a, b = x, y
""")
self.assertLines(u"""
(root): StatListNode
stats[0]: SingleAssignmentNode
lhs: TupleNode
args[0]: NameNode
args[1]: NameNode
rhs: TupleNode
args[0]: NameNode
args[1]: NameNode
""", self.treetypes(t))
def test_wrap_offagain(self):
t = self.run_pipeline([NormalizeTree(None)], u"""
x
y
if z:
x
""")
self.assertLines(u"""
(root): StatListNode
stats[0]: ExprStatNode
expr: NameNode
stats[1]: ExprStatNode
expr: NameNode
stats[2]: IfStatNode
if_clauses[0]: IfClauseNode
condition: NameNode
body: StatListNode
stats[0]: ExprStatNode
expr: NameNode
""", self.treetypes(t))
def test_pass_eliminated(self):
t = self.run_pipeline([NormalizeTree(None)], u"pass")
self.assertTrue(len(t.stats) == 0)
class TestWithTransform(object): # (TransformTest): # Disabled!
def test_simplified(self):
t = self.run_pipeline([WithTransform(None)], u"""
with x:
y = z ** 3
""")
self.assertCode(u"""
$0_0 = x
$0_2 = $0_0.__exit__
$0_0.__enter__()
$0_1 = True
try:
try:
$1_0 = None
y = z ** 3
except:
$0_1 = False
if (not $0_2($1_0)):
raise
finally:
if $0_1:
$0_2(None, None, None)
""", t)
def test_basic(self):
t = self.run_pipeline([WithTransform(None)], u"""
with x as y:
y = z ** 3
""")
self.assertCode(u"""
$0_0 = x
$0_2 = $0_0.__exit__
$0_3 = $0_0.__enter__()
$0_1 = True
try:
try:
$1_0 = None
y = $0_3
y = z ** 3
except:
$0_1 = False
if (not $0_2($1_0)):
raise
finally:
if $0_1:
$0_2(None, None, None)
""", t)
class TestInterpretCompilerDirectives(TransformTest):
"""
This class tests the parallel directives AST-rewriting and importing.
"""
# Test the parallel directives (c)importing
import_code = u"""
cimport cython.parallel
cimport cython.parallel as par
from cython cimport parallel as par2
from cython cimport parallel
from cython.parallel cimport threadid as tid
from cython.parallel cimport threadavailable as tavail
from cython.parallel cimport prange
"""
expected_directives_dict = {
u'cython.parallel': u'cython.parallel',
u'par': u'cython.parallel',
u'par2': u'cython.parallel',
u'parallel': u'cython.parallel',
u"tid": u"cython.parallel.threadid",
u"tavail": u"cython.parallel.threadavailable",
u"prange": u"cython.parallel.prange",
}
def setUp(self):
super(TestInterpretCompilerDirectives, self).setUp()
compilation_options = Main.CompilationOptions(Main.default_options)
ctx = compilation_options.create_context()
transform = InterpretCompilerDirectives(ctx, ctx.compiler_directives)
transform.module_scope = Symtab.ModuleScope('__main__', None, ctx)
self.pipeline = [transform]
self.debug_exception_on_error = DebugFlags.debug_exception_on_error
def tearDown(self):
DebugFlags.debug_exception_on_error = self.debug_exception_on_error
def test_parallel_directives_cimports(self):
self.run_pipeline(self.pipeline, self.import_code)
parallel_directives = self.pipeline[0].parallel_directives
self.assertEqual(parallel_directives, self.expected_directives_dict)
def test_parallel_directives_imports(self):
self.run_pipeline(self.pipeline,
self.import_code.replace(u'cimport', u'import'))
parallel_directives = self.pipeline[0].parallel_directives
self.assertEqual(parallel_directives, self.expected_directives_dict)
# TODO: Re-enable once they're more robust.
if False:
from Cython.Debugger import DebugWriter
from Cython.Debugger.Tests.TestLibCython import DebuggerTestCase
else:
# skip test, don't let it inherit unittest.TestCase
DebuggerTestCase = object
class TestDebugTransform(DebuggerTestCase):
def elem_hasattrs(self, elem, attrs):
return all(attr in elem.attrib for attr in attrs)
def test_debug_info(self):
try:
assert os.path.exists(self.debug_dest)
t = DebugWriter.etree.parse(self.debug_dest)
# the xpath of the standard ElementTree is primitive, don't use
# anything fancy
L = list(t.find('/Module/Globals'))
assert L
xml_globals = dict((e.attrib['name'], e.attrib['type']) for e in L)
self.assertEqual(len(L), len(xml_globals))
L = list(t.find('/Module/Functions'))
assert L
xml_funcs = dict((e.attrib['qualified_name'], e) for e in L)
self.assertEqual(len(L), len(xml_funcs))
# test globals
self.assertEqual('CObject', xml_globals.get('c_var'))
self.assertEqual('PythonObject', xml_globals.get('python_var'))
# test functions
funcnames = ('codefile.spam', 'codefile.ham', 'codefile.eggs',
'codefile.closure', 'codefile.inner')
required_xml_attrs = 'name', 'cname', 'qualified_name'
assert all(f in xml_funcs for f in funcnames)
spam, ham, eggs = [xml_funcs[funcname] for funcname in funcnames]
self.assertEqual(spam.attrib['name'], 'spam')
self.assertNotEqual('spam', spam.attrib['cname'])
assert self.elem_hasattrs(spam, required_xml_attrs)
# test locals of functions
spam_locals = list(spam.find('Locals'))
assert spam_locals
spam_locals.sort(key=lambda e: e.attrib['name'])
names = [e.attrib['name'] for e in spam_locals]
self.assertEqual(list('abcd'), names)
assert self.elem_hasattrs(spam_locals[0], required_xml_attrs)
# test arguments of functions
spam_arguments = list(spam.find('Arguments'))
assert spam_arguments
self.assertEqual(1, len(list(spam_arguments)))
# test step-into functions
step_into = spam.find('StepIntoFunctions')
spam_stepinto = [x.attrib['name'] for x in step_into]
assert spam_stepinto
self.assertEqual(2, len(spam_stepinto))
assert 'puts' in spam_stepinto
assert 'some_c_function' in spam_stepinto
except:
f = open(self.debug_dest)
try:
print(f.read())
finally:
f.close()
raise
class TestAnalyseDeclarationsTransform(unittest.TestCase):
def test_calculate_pickle_checksums(self):
checksums = _calculate_pickle_checksums(['member1', 'member2', 'member3'])
assert 2 <= len(checksums) <= 3, checksums # expecting ['0xc0af380' (MD5), '0x0c75bd4', '0xa7a7b94']
if __name__ == "__main__":
import unittest
unittest.main()
|
