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Add tests for constraints

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This commit is contained in:
Paul Moore 2020-04-25 11:48:16 +01:00
parent 43426eea34
commit 5186f05bd7
1 changed files with 51 additions and 0 deletions
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51
tests/functional/test_new_resolver.py
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@ -529,3 +529,54 @@ def test_new_resolver_handles_prerelease(
*pip_args
)
assert_installed(script, pkg=expected_version)
def test_new_resolver_constraints(script):
create_basic_wheel_for_package(script, "pkg", "1.0")
create_basic_wheel_for_package(script, "pkg", "2.0")
create_basic_wheel_for_package(script, "pkg", "3.0")
constraints_file = script.scratch_path / "constraints.txt"
constraints_file.write_text("pkg<2.0\nconstraint_only<1.0")
script.pip(
"install", "--unstable-feature=resolver",
"--no-cache-dir", "--no-index",
"--find-links", script.scratch_path,
"-c", constraints_file,
"pkg"
)
assert_installed(script, pkg="1.0")
assert_not_installed(script, "constraint_only")
def test_new_resolver_constraint_on_dependency(script):
create_basic_wheel_for_package(script, "base", "1.0", depends=["dep"])
create_basic_wheel_for_package(script, "dep", "1.0")
constraints_file = script.scratch_path / "constraints.txt"
constraints_file.write_text("dep==1.0")
script.pip(
"install", "--unstable-feature=resolver",
"--no-cache-dir", "--no-index",
"--find-links", script.scratch_path,
"-c", constraints_file,
"base"
)
assert_installed(script, base="1.0")
assert_installed(script, dep="1.0")
def test_new_resolver_constraint_on_path(script):
setup_py = script.scratch_path / "setup.py"
text = "from setuptools import setup\nsetup(name='foo', version='2.0')"
setup_py.write_text(text)
constraints_txt = script.scratch_path / "constraints.txt"
constraints_txt.write_text("foo==1.0")
result = script.pip(
"install", "--unstable-feature=resolver",
"--no-cache-dir", "--no-index",
"-c", constraints_txt,
str(script.scratch_path),
expect_error=True,
)
msg = "installation from path or url cannot be constrained to a version"
assert msg in result.stderr, str(result)