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# Tests for the Python interpreters, package sets and environments.
#
# Each Python interpreter has a `passthru.tests` which is the attribute set
# returned by this function. For example, for Python 3 the tests are run with
#
# $ nix-build -A python3.tests
#
{ stdenv
, python
, runCommand
, lib
, callPackage
, pkgs
}:
let
# Test whether the interpreter behaves in the different types of environments
# we aim to support.
environmentTests = let
envs = let
inherit python;
pythonEnv = python.withPackages(ps: with ps; [ ]);
pythonVirtualEnv = if python.isPy3k
then
python.withPackages(ps: with ps; [ virtualenv ])
else
python.buildEnv.override {
extraLibs = with python.pkgs; [ virtualenv ];
# Collisions because of namespaces __init__.py
ignoreCollisions = true;
};
in {
# Plain Python interpreter
plain = rec {
env = python;
interpreter = env.interpreter;
is_venv = "False";
is_nixenv = "False";
is_virtualenv = "False";
};
} // lib.optionalAttrs (!python.isPyPy && !stdenv.isDarwin) {
# Use virtualenv from a Nix env.
# Fails on darwin with
# virtualenv: error: argument dest: the destination . is not write-able at /nix/store
nixenv-virtualenv = rec {
env = runCommand "${python.name}-virtualenv" {} ''
${pythonVirtualEnv.interpreter} -m virtualenv venv
mv venv $out
'';
interpreter = "${env}/bin/${python.executable}";
is_venv = "False";
is_nixenv = "True";
is_virtualenv = "True";
};
} // lib.optionalAttrs (python.implementation != "graal") {
# Python Nix environment (python.buildEnv)
nixenv = rec {
env = pythonEnv;
interpreter = env.interpreter;
is_venv = "False";
is_nixenv = "True";
is_virtualenv = "False";
};
} // lib.optionalAttrs (python.isPy3k && (!python.isPyPy)) {
# Venv built using plain Python
# Python 2 does not support venv
# TODO: PyPy executable name is incorrect, it should be pypy-c or pypy-3c instead of pypy and pypy3.
plain-venv = rec {
env = runCommand "${python.name}-venv" {} ''
${python.interpreter} -m venv $out
'';
interpreter = "${env}/bin/${python.executable}";
is_venv = "True";
is_nixenv = "False";
is_virtualenv = "False";
};
} // lib.optionalAttrs (python.pythonAtLeast "3.8") {
# Venv built using Python Nix environment (python.buildEnv)
# TODO: Cannot create venv from a nix env
# Error: Command '['/nix/store/ddc8nqx73pda86ibvhzdmvdsqmwnbjf7-python3-3.7.6-venv/bin/python3.7', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1.
nixenv-venv = rec {
env = runCommand "${python.name}-venv" {} ''
${pythonEnv.interpreter} -m venv $out
'';
interpreter = "${env}/bin/${pythonEnv.executable}";
is_venv = "True";
is_nixenv = "True";
is_virtualenv = "False";
};
};
testfun = name: attrs: runCommand "${python.name}-tests-${name}" ({
inherit (python) pythonVersion;
} // attrs) ''
cp -r ${./tests/test_environments} tests
chmod -R +w tests
substituteAllInPlace tests/test_python.py
${attrs.interpreter} -m unittest discover --verbose tests #/test_python.py
mkdir $out
touch $out/success
'';
in lib.mapAttrs testfun envs;
# Integration tests involving the package set.
# All PyPy package builds are broken at the moment
integrationTests = lib.optionalAttrs (!python.isPyPy) (
lib.optionalAttrs (python.isPy3k && !stdenv.isDarwin) { # darwin has no split-debug
cpython-gdb = callPackage ./tests/test_cpython_gdb {
interpreter = python;
};
} // lib.optionalAttrs (python.pythonAtLeast "3.7") {
# Before the addition of NIX_PYTHONPREFIX mypy was broken with typed packages
nix-pythonprefix-mypy = callPackage ./tests/test_nix_pythonprefix {
interpreter = python;
};
# Make sure tkinter is importable. See https://github.com/NixOS/nixpkgs/issues/238990
tkinter = callPackage ./tests/test_tkinter {
interpreter = python;
};
}
);
# Test editable package support
editableTests = let
testPython = python.override {
self = testPython;
packageOverrides = pyfinal: pyprev: {
# An editable package with a script that loads our mutable location
my-editable = pyfinal.mkPythonEditablePackage {
pname = "my-editable";
version = "0.1.0";
root = "$NIX_BUILD_TOP/src"; # Use environment variable expansion at runtime
# Inject a script
scripts = {
my-script = "my_editable.main:main";
};
};
};
};
in {
editable-script = runCommand "editable-test" {
nativeBuildInputs = [ (testPython.withPackages (ps: [ ps.my-editable ])) ];
} ''
mkdir -p src/my_editable
cat > src/my_editable/main.py << EOF
def main():
print("hello mutable")
EOF
test "$(my-script)" == "hello mutable"
test "$(python -c 'import sys; print(sys.path[1])')" == "$NIX_BUILD_TOP/src"
touch $out
'';
};
# Tests to ensure overriding works as expected.
overrideTests = let
extension = self: super: {
foobar = super.numpy;
};
# `pythonInterpreters.pypy39_prebuilt` does not expose an attribute
# name (is not present in top-level `pkgs`).
is_prebuilt = python: python.pythonAttr == null;
in lib.optionalAttrs (python.isPy3k) ({
test-packageOverrides = let
myPython = let
self = python.override {
packageOverrides = extension;
inherit self;
};
in self;
in assert myPython.pkgs.foobar == myPython.pkgs.numpy; myPython.withPackages(ps: with ps; [ foobar ]);
# overrideScope is broken currently
# test-overrideScope = let
# myPackages = python.pkgs.overrideScope extension;
# in assert myPackages.foobar == myPackages.numpy; myPackages.python.withPackages(ps: with ps; [ foobar ]);
#
# Have to skip prebuilt python as it's not present in top-level
# `pkgs` as an attribute.
} // lib.optionalAttrs (python ? pythonAttr && !is_prebuilt python) {
# Test applying overrides using pythonPackagesOverlays.
test-pythonPackagesExtensions = let
pkgs_ = pkgs.extend(final: prev: {
pythonPackagesExtensions = prev.pythonPackagesExtensions ++ [
(python-final: python-prev: {
foo = python-prev.setuptools;
})
];
});
in pkgs_.${python.pythonAttr}.pkgs.foo;
});
condaTests = let
requests = callPackage ({
autoPatchelfHook,
fetchurl,
pythonCondaPackages,
}:
python.pkgs.buildPythonPackage {
pname = "requests";
version = "2.24.0";
format = "other";
src = fetchurl {
url = "https://repo.anaconda.com/pkgs/main/noarch/requests-2.24.0-py_0.tar.bz2";
sha256 = "02qzaf6gwsqbcs69pix1fnjxzgnngwzvrsy65h1d521g750mjvvp";
};
nativeBuildInputs = [ autoPatchelfHook ] ++ (with python.pkgs; [
condaUnpackHook condaInstallHook
]);
buildInputs = [
pythonCondaPackages.condaPatchelfLibs
];
propagatedBuildInputs = with python.pkgs; [
chardet idna urllib3 certifi
];
}
) {};
pythonWithRequests = requests.pythonModule.withPackages (ps: [ requests ]);
in lib.optionalAttrs (python.isPy3k && stdenv.isLinux)
{
condaExamplePackage = runCommand "import-requests" {} ''
${pythonWithRequests.interpreter} -c "import requests" > $out
'';
};
in lib.optionalAttrs (stdenv.hostPlatform == stdenv.buildPlatform ) (environmentTests // integrationTests // overrideTests // condaTests // editableTests)
|
