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Diffstat (limited to 'pkg_resources/tests/test_resources.py')
| -rw-r--r-- | pkg_resources/tests/test_resources.py | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/pkg_resources/tests/test_resources.py b/pkg_resources/tests/test_resources.py index 13ed4eb1..7ba65786 100644 --- a/pkg_resources/tests/test_resources.py +++ b/pkg_resources/tests/test_resources.py @@ -222,6 +222,31 @@ class TestWorkingSet: msg = 'Foo 1.2 is installed but Foo<1.2 is required' assert vc.value.report() == msg + def test_resolve_conflicts_with_prior(self): + """ + A ContextualVersionConflict should be raised when a requirement + conflicts with a prior requirement for a different package. + """ + # Create installation where Foo depends on Baz 1.0 and Bar depends on + # Baz 2.0. + ws = WorkingSet([]) + md = Metadata(('depends.txt', "Baz==1.0")) + Foo = Distribution.from_filename("/foo_dir/Foo-1.0.egg", metadata=md) + ws.add(Foo) + md = Metadata(('depends.txt', "Baz==2.0")) + Bar = Distribution.from_filename("/foo_dir/Bar-1.0.egg", metadata=md) + ws.add(Bar) + Baz = Distribution.from_filename("/foo_dir/Baz-1.0.egg") + ws.add(Baz) + Baz = Distribution.from_filename("/foo_dir/Baz-2.0.egg") + ws.add(Baz) + + with pytest.raises(VersionConflict) as vc: + ws.resolve(parse_requirements("Foo\nBar\n")) + + msg = "Baz 1.0 is installed but Baz==2.0 is required by {'Bar'}" + assert vc.value.report() == msg + class TestEntryPoints: |