def _find_weka():
"""
Look for Weka installation in system $PATH or /Applications. If
not found, return None.
"""
mac_path = '/Applications/Weka.app'
linux_path = system.which('weka')
return mac_path if fs.exists(mac_path) else linux_path
def test_which_path(self):
self._test("/bin/sh", system.which("sh", path=("/usr", "/bin")))
self._test(None, system.which("sh", path=("/dev",)))
self._test(None, system.which("sh", path=("/not-a-real-path",)))
self._test(None, system.which("not-a-real-command", path=("/bin",)))
def test_which(self):
self._test("/bin/sh", system.which("sh"))
self._test(None, system.which("not-a-real-command"))
def test_which_path():
assert system.which("sh", path=("/usr", "/bin")) == "/bin/sh"
assert not system.which("sh", path=("/dev",))
assert not system.which("sh", path=("/not-a-real-path",))
assert not system.which("not-a-real-command", path=("/bin",))
def test_which():
assert "/bin/sh" == system.which("sh")
assert not system.which("not-a-real-command")