def test_successful_no_output():
Pipeline(
Run([PYTHON, "-m", "grade", "run", "-p", "test_mixins.py"]),
AssertExitSuccess(),
AssertStdoutMatches(""),
AssertStderrMatches(""),
)()
def test_inferring_filename(self):
""" Can we infer filename if conventions are followed? """
results = Run(["grep", "-h"])()
results = WriteOutputs("-h")(results)
results = AssertStderrMatches()(results)
self.assertIsInstance(results, CompletedProcess)
os.remove("-h.stdout")
os.remove("-h.stderr")
def test_passing_filename():
results = Run(">&2 echo hello", shell=True)()
with open("hello.stderr", "w") as f:
f.write("hello")
AssertStderrMatches(filepath="hello.stderr")(results)
os.remove("hello.stderr")
def test_passing_both(self):
results = Run(">&2 echo hello", shell=True)()
with self.assertRaises(ValueError):
AssertStderrMatches("hello", "world")(results)
def test_cannot_infer_shell(self):
""" Should not be able to infer filename when shell=True """
results = Run(">&2 echo hello_world", shell=True)()
with self.assertRaises(ValueError):
AssertStderrMatches()(results)
def test_cannot_infer_filename(self):
""" What if there is no file to infer from? """
results = Run(["grep", "-h"])()
with self.assertRaises(AssertionError):
AssertStderrMatches()(results)
def test_stderr_matches(self):
""" What if stderr does match? """
results = Run(">&2 echo hello_world", shell=True)()
results = AssertStderrMatches("hello_world")(results)
self.assertIsInstance(results, CompletedProcess)
def test_stderr_no_match(self):
""" What happens when stderr does not match? """
results = Run(">&2 echo hello_world", shell=True)()
with self.assertRaises(AssertionError):
AssertStderrMatches("goodbye_world")(results)