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# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
import os
import importlib
import sys
import shutil
from quodlibet.util.modulescanner import ModuleScanner
from quodlibet.util.importhelper import get_importables, load_dir_modules
from tests import TestCase, mkdtemp
class TModuleScanner(TestCase):
def setUp(self):
self.d = mkdtemp("ql-mod")
spec = importlib.machinery.ModuleSpec("qlfake", None)
sys.modules["qlfake"] = importlib.util.module_from_spec(spec)
def tearDown(self):
del sys.modules["qlfake"]
shutil.rmtree(self.d)
def _create_mod(self, name, package=None):
if package is not None:
base = os.path.join(self.d, package)
else:
base = self.d
return open(os.path.join(base, name), "wb")
def _create_pkg(self, name):
base = os.path.join(self.d, name)
os.mkdir(base)
return open(os.path.join(base, "__init__.py"), "wb")
def test_importables(self):
self.assertEqual(list(get_importables(self.d)), [])
h = self._create_mod("foo.py")
h.close()
self.assertEqual(list(get_importables(self.d))[0], ("foo", h.name, [h.name]))
def test_importables_ignore_init(self):
h = self._create_mod("foo7.py")
h.close()
self._create_mod("__init__.py").close()
self.assertEqual(list(get_importables(self.d))[0], ("foo7", h.name, [h.name]))
def test_importables_package(self):
h = self._create_pkg("foobar")
self.assertEqual(
list(get_importables(self.d))[0],
("foobar", os.path.dirname(h.name), [h.name]),
)
h.close()
def test_importables_package_deps(self):
h = self._create_pkg("foobar3")
h2 = self._create_mod("sub.py", "foobar3")
name, path, deps = list(get_importables(self.d))[0]
self.assertEqual(name, "foobar3")
self.assertEqual(path, os.path.dirname(h.name))
self.assertEqual(set(deps), {h.name, h2.name})
h2.close()
h.close()
def test_load_dir_modules(self):
h = self._create_mod("x.py")
h.write(b"test=42\n")
h.close()
mods = load_dir_modules(self.d, "qlfake")
self.assertEqual(len(mods), 1)
self.assertEqual(mods[0].test, 42)
def test_load_dir_modules_packages(self):
h = self._create_pkg("somepkg2")
h2 = self._create_mod("sub.py", "somepkg2")
h2.write(b"test=456\n")
h2.close()
h.write(b"from .sub import *\nmain=654\n")
h.close()
mods = load_dir_modules(self.d, "qlfake")
self.assertEqual(len(mods), 1)
self.assertEqual(mods[0].test, 456)
def test_scanner_add(self):
self._create_mod("q1.py").close()
self._create_mod("q2.py").close()
s = ModuleScanner([self.d])
assert not s.modules
removed, added = s.rescan()
assert not removed
self.assertEqual(set(added), {"q1", "q2"})
self.assertEqual(len(s.modules), 2)
self.assertEqual(len(s.failures), 0)
def test_unimportable_package(self):
self._create_pkg("_foobar").close()
s = ModuleScanner([self.d])
assert not s.modules
removed, added = s.rescan()
assert not added
assert not removed
def test_scanner_remove(self):
h = self._create_mod("q3.py")
h.close()
s = ModuleScanner([self.d])
s.rescan()
os.remove(h.name)
try:
os.remove(h.name + "c")
except OSError:
pass
removed, added = s.rescan()
assert not added
self.assertEqual(removed, ["q3"])
self.assertEqual(len(s.modules), 0)
self.assertEqual(len(s.failures), 0)
def test_scanner_error(self):
h = self._create_mod("q4.py")
h.write(b"1syntaxerror\n")
h.close()
s = ModuleScanner([self.d])
removed, added = s.rescan()
assert not added
assert not removed
self.assertEqual(len(s.failures), 1)
assert "q4" in s.failures
def test_scanner_add_package(self):
h = self._create_pkg("somepkg")
h2 = self._create_mod("sub.py", "somepkg")
h2.write(b"test=123\n")
h2.close()
h.write(b"from .sub import *\nmain=321\n")
h.close()
s = ModuleScanner([self.d])
removed, added = s.rescan()
self.assertEqual(added, ["somepkg"])
self.assertEqual(s.modules["somepkg"].module.main, 321)
self.assertEqual(s.modules["somepkg"].module.test, 123)
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