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"""Tests for coverage.execfile"""
import os
from coverage.execfile import run_python_file
from coveragetest import CoverageTest
here = os.path.dirname(__file__)
class RunTest(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.makeFile("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')
fpy.write(nl.join(pylines))
fpy.close()
run_python_file('nl.py', ['nl.py'])
self.assertEqual(self.stdout(), "Hello, world!\n"*3)
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