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"""Tests for coverage.execfile"""
import os, sys
from coverage.execfile import run_python_file, run_python_module
from coverage.misc import NoSource
sys.path.insert(0, os.path.split(__file__)[0]) # Force relative import for Py3k
from coveragetest import CoverageTest
here = os.path.dirname(__file__)
class RunFileTest(CoverageTest):
"""Test cases for `run_python_file`."""
def test_run_python_file(self):
tryfile = os.path.join(here, "try_execfile.py")
run_python_file(tryfile, [tryfile, "arg1", "arg2"])
mod_globs = eval(self.stdout())
# The file should think it is __main__
self.assertEqual(mod_globs['__name__'], "__main__")
# It should seem to come from a file named try_execfile.py
dunder_file = os.path.basename(mod_globs['__file__'])
self.assertEqual(dunder_file, "try_execfile.py")
# It should have its correct module data.
self.assertEqual(mod_globs['__doc__'],
"Test file for run_python_file.")
self.assertEqual(mod_globs['DATA'], "xyzzy")
self.assertEqual(mod_globs['FN_VAL'], "my_fn('fooey')")
# It must be self-importable as __main__.
self.assertEqual(mod_globs['__main__.DATA'], "xyzzy")
# Argv should have the proper values.
self.assertEqual(mod_globs['argv'], [tryfile, "arg1", "arg2"])
# __builtins__ should have the right values, like open().
self.assertEqual(mod_globs['__builtins__.has_open'], True)
def test_no_extra_file(self):
# Make sure that running a file doesn't create an extra compiled file.
self.make_file("xxx", """\
desc = "a non-.py file!"
""")
self.assertEqual(os.listdir("."), ["xxx"])
run_python_file("xxx", ["xxx"])
self.assertEqual(os.listdir("."), ["xxx"])
def test_universal_newlines(self):
# Make sure we can read any sort of line ending.
pylines = """# try newlines|print('Hello, world!')|""".split('|')
for nl in ('\n', '\r\n', '\r'):
fpy = open('nl.py', 'wb')
try:
fpy.write(nl.join(pylines).encode('utf-8'))
finally:
fpy.close()
run_python_file('nl.py', ['nl.py'])
self.assertEqual(self.stdout(), "Hello, world!\n"*3)
def test_missing_final_newline(self):
# Make sure we can deal with a Python file with no final newline.
self.make_file("abrupt.py", """\
if 1:
a = 1
print("a is %r" % a)
#""")
abrupt = open("abrupt.py").read()
self.assertEqual(abrupt[-1], '#')
run_python_file("abrupt.py", ["abrupt.py"])
self.assertEqual(self.stdout(), "a is 1\n")
def test_no_such_file(self):
self.assertRaises(NoSource, run_python_file, "xyzzy.py", [])
class RunModuleTest(CoverageTest):
"""Test run_python_module."""
run_in_temp_dir = False
def setUp(self):
super(RunModuleTest, self).setUp()
# Parent class saves and restores sys.path, we can just modify it.
sys.path.append(self.nice_file(os.path.dirname(__file__), 'modules'))
def test_runmod1(self):
run_python_module("runmod1", ["runmod1", "hello"])
self.assertEqual(self.stdout(), "runmod1: passed hello\n")
def test_runmod2(self):
run_python_module("pkg1.runmod2", ["runmod2", "hello"])
self.assertEqual(self.stdout(), "runmod2: passed hello\n")
def test_runmod3(self):
run_python_module("pkg1.sub.runmod3", ["runmod3", "hello"])
self.assertEqual(self.stdout(), "runmod3: passed hello\n")
def test_pkg1_main(self):
run_python_module("pkg1", ["pkg1", "hello"])
self.assertEqual(self.stdout(), "pkg1.__main__: passed hello\n")
def test_pkg1_sub_main(self):
run_python_module("pkg1.sub", ["pkg1.sub", "hello"])
self.assertEqual(self.stdout(), "pkg1.sub.__main__: passed hello\n")
def test_no_such_module(self):
self.assertRaises(NoSource, run_python_module, "i_dont_exist", [])
self.assertRaises(NoSource, run_python_module, "i.dont_exist", [])
self.assertRaises(NoSource, run_python_module, "i.dont.exist", [])
def test_no_main(self):
self.assertRaises(NoSource, run_python_module, "pkg2", ["pkg2", "hi"])
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