mirror of https://github.com/pypa/pip
108 lines
3.4 KiB
Python
108 lines
3.4 KiB
Python
import pathlib
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import sys
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from tests.lib import create_basic_wheel_for_package, create_test_package_with_setup
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def test_new_resolver_conflict_requirements_file(tmpdir, script):
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create_basic_wheel_for_package(script, "base", "1.0")
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create_basic_wheel_for_package(script, "base", "2.0")
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create_basic_wheel_for_package(
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script, "pkga", "1.0", depends=["base==1.0"],
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)
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create_basic_wheel_for_package(
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script, "pkgb", "1.0", depends=["base==2.0"],
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)
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req_file = tmpdir.joinpath("requirements.txt")
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req_file.write_text("pkga\npkgb")
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result = script.pip(
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"install",
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"--no-cache-dir", "--no-index",
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"--find-links", script.scratch_path,
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"-r", req_file,
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expect_error=True,
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)
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message = "package versions have conflicting dependencies"
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assert message in result.stderr, str(result)
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def test_new_resolver_conflict_constraints_file(tmpdir, script):
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create_basic_wheel_for_package(script, "pkg", "1.0")
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constrats_file = tmpdir.joinpath("constraints.txt")
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constrats_file.write_text("pkg!=1.0")
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result = script.pip(
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"install",
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"--no-cache-dir", "--no-index",
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"--find-links", script.scratch_path,
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"-c", constrats_file,
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"pkg==1.0",
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expect_error=True,
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)
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assert "ResolutionImpossible" in result.stderr, str(result)
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message = "The user requested (constraint) pkg!=1.0"
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assert message in result.stdout, str(result)
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def test_new_resolver_requires_python_error(script):
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compatible_python = ">={0.major}.{0.minor}".format(sys.version_info)
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incompatible_python = "<{0.major}.{0.minor}".format(sys.version_info)
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pkga = create_test_package_with_setup(
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script,
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name="pkga",
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version="1.0",
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python_requires=compatible_python,
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)
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pkgb = create_test_package_with_setup(
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script,
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name="pkgb",
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version="1.0",
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python_requires=incompatible_python,
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)
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# This always fails because pkgb can never be satisfied.
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result = script.pip("install", "--no-index", pkga, pkgb, expect_error=True)
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# The error message should mention the Requires-Python: value causing the
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# conflict, not the compatible one.
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assert incompatible_python in result.stderr, str(result)
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assert compatible_python not in result.stderr, str(result)
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def test_new_resolver_checks_requires_python_before_dependencies(script):
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incompatible_python = "<{0.major}.{0.minor}".format(sys.version_info)
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pkg_dep = create_basic_wheel_for_package(
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script,
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name="pkg-dep",
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version="1",
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)
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create_basic_wheel_for_package(
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script,
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name="pkg-root",
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version="1",
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# Refer the dependency by URL to prioritise it as much as possible,
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# to test that Requires-Python is *still* inspected first.
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depends=[f"pkg-dep@{pathlib.Path(pkg_dep).as_uri()}"],
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requires_python=incompatible_python,
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)
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result = script.pip(
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"install", "--no-cache-dir",
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"--no-index", "--find-links", script.scratch_path,
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"pkg-root",
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expect_error=True,
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)
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# Resolution should fail because of pkg-a's Requires-Python.
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# This check should be done before pkg-b, so pkg-b should never be pulled.
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assert incompatible_python in result.stderr, str(result)
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assert "pkg-b" not in result.stderr, str(result)
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