def test_diff_should_update(fake_dist, from_line):
installed = [fake_dist('django==1.7')]
reqs = [from_line('django==1.8')]
to_install, to_uninstall = diff(reqs, installed)
assert to_install == {'django==1.8'}
assert to_uninstall == set()
def test_diff_should_install(from_line):
installed = [] # empty env
reqs = [from_line('django==1.8')]
to_install, to_uninstall = diff(reqs, installed)
assert to_install == {'django==1.8'}
assert to_uninstall == set()
def test_diff_should_uninstall(fake_dist):
installed = [fake_dist('django==1.8')]
reqs = []
to_install, to_uninstall = diff(reqs, installed)
assert to_install == set()
assert to_uninstall == {'django'} # no version spec when uninstalling
def test_diff_leave_prequ_alone(fake_dist, from_line):
# Suppose an env contains Django, and prequ itself (including all of
# its dependencies)
installed = [
fake_dist('django==1.7'),
fake_dist('first==2.0.1'),
fake_dist('prequ==1.1.1', [
'click>=4',
'first',
'six',
]),
fake_dist('six==1.9.0'),
fake_dist('click==4.1'),
fake_dist('foobar==0.3.6'),
]
# Then this Django-only requirement should keep pip around (i.e. NOT
# uninstall it), but uninstall first
reqs = [
from_line('django==1.7'),
]
to_install, to_uninstall = diff(reqs, installed)
assert to_install == set()
assert to_uninstall == {'foobar'}
def test_diff_should_do_nothing():
installed = [] # empty env
reqs = [] # no requirements
to_install, to_uninstall = diff(reqs, installed)
assert to_install == set()
assert to_uninstall == set()
def test_diff_should_not_uninstall(fake_dist):
ignored = ('pip==7.1.0', 'prequ==1.0.0', 'pip-review==1.1.1',
'pkg-resources==0.0.0', 'setuptools==34.0.0', 'wheel==0.29.0')
installed = [fake_dist(pkg) for pkg in ignored]
reqs = []
to_uninstall = diff(reqs, installed)[1]
assert to_uninstall == set()
def test_diff_should_uninstall_with_markers(fake_dist, from_line):
installed = [fake_dist('subprocess32==3.2.7')]
reqs = [from_line("subprocess32==3.2.7 ; python_version=='2.7'")]
to_install, to_uninstall = diff(reqs, installed)
assert to_install == set()
assert to_uninstall == (set() if sys.version.startswith('2.7') else
{'subprocess32'})
def test_diff_should_install_with_markers(from_line):
installed = []
reqs = [from_line("subprocess32==3.2.7 ; python_version=='2.7'")]
to_install, to_uninstall = diff(reqs, installed)
assert {
str(x.req)
for x in to_install
} == ({'subprocess32==3.2.7'} if sys.version.startswith('2.7') else set())
assert to_uninstall == set()
def test_diff_leave_packaging_packages_alone(fake_dist, from_line):
# Suppose an env contains Django, and pip itself
installed = [
fake_dist('django==1.7'),
fake_dist('first==2.0.1'),
fake_dist('pip==7.1.0'),
]
# Then this Django-only requirement should keep pip around (i.e. NOT
# uninstall it), but uninstall first
reqs = [
from_line('django==1.7'),
]
to_install, to_uninstall = diff(reqs, installed)
assert to_install == set()
assert to_uninstall == {'first'}
def test_diff_with_editable_without_changes(fake_dist, from_editable,
from_line, small_fake_package_dir):
installed = [
fake_dist('small-fake-with-deps==0.1'),
fake_dist('six==1.10.0'),
]
reqs = [
from_editable(small_fake_package_dir),
from_line('six==1.10.0'),
]
assert reqs[0].req is None, "Editable doesn't have Requirement data yet"
to_install, to_uninstall = diff(reqs, installed)
assert reqs[0].req is not None, "Requirement data has been filled"
pinned_ver = get_ireq_version(reqs[0])
assert installed[0].version == pinned_ver
assert to_uninstall == set(), "No packages should be uninstalled"
assert to_install == set(), "No packages should be (re)installed"
def test_diff_with_editable(fake_dist, from_editable, from_line,
small_fake_package_dir):
installed = [
fake_dist('small-fake-with-deps==0.0.1'),
fake_dist('six==1.10.0'),
]
reqs = [
from_editable(small_fake_package_dir),
from_line('six==1.10.0'),
]
to_install, to_uninstall = diff(reqs, installed)
assert to_uninstall == set(), "No packages should be uninstalled"
# The editable should be upgraded, since the installed version
# (0.0.1) was different than the version specified in setup.py of
# the editable package (0.1)
assert len(to_install) == 1
package = list(to_install)[0]
assert package.editable
assert str(package.link) == path_to_url(small_fake_package_dir)
