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Unified Diff: tools/telemetry/third_party/coverage/tests/test_execfile.py

Issue 1366913004: Add coverage Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 3 months ago
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Index: tools/telemetry/third_party/coverage/tests/test_execfile.py
diff --git a/tools/telemetry/third_party/coverage/tests/test_execfile.py b/tools/telemetry/third_party/coverage/tests/test_execfile.py
new file mode 100644
index 0000000000000000000000000000000000000000..a3ea1153c61244e3de255e0a827efb29f80f498e
--- /dev/null
+++ b/tools/telemetry/third_party/coverage/tests/test_execfile.py
@@ -0,0 +1,195 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+
+"""Tests for coverage.execfile"""
+
+import compileall
+import json
+import os
+import os.path
+import re
+import sys
+
+from coverage.backward import binary_bytes
+from coverage.execfile import run_python_file, run_python_module
+from coverage.misc import NoCode, NoSource
+
+from tests.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 = json.loads(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__'].splitlines()[0],
+ "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'):
+ with open('nl.py', 'wb') as fpy:
+ fpy.write(nl.join(pylines).encode('utf-8'))
+ 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)
+ #""")
+ with open("abrupt.py") as f:
+ abrupt = f.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):
+ with self.assertRaises(NoSource):
+ run_python_file("xyzzy.py", [])
+
+ def test_directory_with_main(self):
+ self.make_file("with_main/__main__.py", """\
+ print("I am __main__")
+ """)
+ run_python_file("with_main", ["with_main"])
+ self.assertEqual(self.stdout(), "I am __main__\n")
+
+ def test_directory_without_main(self):
+ self.make_file("without_main/__init__.py", "")
+ with self.assertRaisesRegex(NoSource, "Can't find '__main__' module in 'without_main'"):
+ run_python_file("without_main", ["without_main"])
+
+
+class RunPycFileTest(CoverageTest):
+ """Test cases for `run_python_file`."""
+
+ def make_pyc(self):
+ """Create a .pyc file, and return the relative path to it."""
+ self.make_file("compiled.py", """\
+ def doit():
+ print("I am here!")
+
+ doit()
+ """)
+ compileall.compile_dir(".", quiet=True)
+ os.remove("compiled.py")
+
+ # Find the .pyc file!
+ for there, _, files in os.walk("."): # pragma: part covered
+ for f in files:
+ if f.endswith(".pyc"): # pragma: part covered
+ return os.path.join(there, f)
+
+ def test_running_pyc(self):
+ pycfile = self.make_pyc()
+ run_python_file(pycfile, [pycfile])
+ self.assertEqual(self.stdout(), "I am here!\n")
+
+ def test_running_pyo(self):
+ pycfile = self.make_pyc()
+ pyofile = re.sub(r"[.]pyc$", ".pyo", pycfile)
+ self.assertNotEqual(pycfile, pyofile)
+ os.rename(pycfile, pyofile)
+ run_python_file(pyofile, [pyofile])
+ self.assertEqual(self.stdout(), "I am here!\n")
+
+ def test_running_pyc_from_wrong_python(self):
+ pycfile = self.make_pyc()
+
+ # Jam Python 2.1 magic number into the .pyc file.
+ with open(pycfile, "r+b") as fpyc:
+ fpyc.seek(0)
+ fpyc.write(binary_bytes([0x2a, 0xeb, 0x0d, 0x0a]))
+
+ with self.assertRaisesRegex(NoCode, "Bad magic number in .pyc file"):
+ run_python_file(pycfile, [pycfile])
+
+ def test_no_such_pyc_file(self):
+ with self.assertRaisesRegex(NoCode, "No file to run: 'xyzzy.pyc'"):
+ run_python_file("xyzzy.pyc", [])
+
+
+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.stderr(), "")
+ self.assertEqual(self.stdout(), "runmod1: passed hello\n")
+
+ def test_runmod2(self):
+ run_python_module("pkg1.runmod2", ["runmod2", "hello"])
+ self.assertEqual(self.stderr(), "")
+ self.assertEqual(self.stdout(), "runmod2: passed hello\n")
+
+ def test_runmod3(self):
+ run_python_module("pkg1.sub.runmod3", ["runmod3", "hello"])
+ self.assertEqual(self.stderr(), "")
+ self.assertEqual(self.stdout(), "runmod3: passed hello\n")
+
+ def test_pkg1_main(self):
+ run_python_module("pkg1", ["pkg1", "hello"])
+ self.assertEqual(self.stderr(), "")
+ 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.stderr(), "")
+ self.assertEqual(self.stdout(), "pkg1.sub.__main__: passed hello\n")
+
+ def test_no_such_module(self):
+ with self.assertRaises(NoSource):
+ run_python_module("i_dont_exist", [])
+ with self.assertRaises(NoSource):
+ run_python_module("i.dont_exist", [])
+ with self.assertRaises(NoSource):
+ run_python_module("i.dont.exist", [])
+
+ def test_no_main(self):
+ with self.assertRaises(NoSource):
+ run_python_module("pkg2", ["pkg2", "hi"])
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