codekingpro/portable-devtools

1import platform2import sysconfig3import textwrap4 5import pytest6 7from .. import base8 9pytestmark = pytest.mark.usefixtures('suppress_path_mangle')10 11 12@pytest.fixture13def c_file(tmp_path):14    c_file = tmp_path / 'foo.c'15    gen_headers = ('Python.h',)16    is_windows = platform.system() == "Windows"17    plat_headers = ('windows.h',) * is_windows18    all_headers = gen_headers + plat_headers19    headers = '\n'.join(f'#include <{header}>\n' for header in all_headers)20    payload = (21        textwrap.dedent(22            """23        #headers24        void PyInit_foo(void) {}25        """26        )27        .lstrip()28        .replace('#headers', headers)29    )30    c_file.write_text(payload, encoding='utf-8')31    return c_file32 33 34def test_set_include_dirs(c_file):35    """36    Extensions should build even if set_include_dirs is invoked.37    In particular, compiler-specific paths should not be overridden.38    """39    compiler = base.new_compiler()40    python = sysconfig.get_paths()['include']41    compiler.set_include_dirs([python])42    compiler.compile([c_file])43 44    # do it again, setting include dirs after any initialization45    compiler.set_include_dirs([python])46    compiler.compile([c_file])47 48 49def test_has_function_prototype():50    # Issue https://github.com/pypa/setuptools/issues/364851    # Test prototype-generating behavior.52 53    compiler = base.new_compiler()54 55    # Every C implementation should have these.56    assert compiler.has_function('abort')57    assert compiler.has_function('exit')58    with pytest.deprecated_call(match='includes is deprecated'):59        # abort() is a valid expression with the <stdlib.h> prototype.60        assert compiler.has_function('abort', includes=['stdlib.h'])61    with pytest.deprecated_call(match='includes is deprecated'):62        # But exit() is not valid with the actual prototype in scope.63        assert not compiler.has_function('exit', includes=['stdlib.h'])64    # And setuptools_does_not_exist is not declared or defined at all.65    assert not compiler.has_function('setuptools_does_not_exist')66    with pytest.deprecated_call(match='includes is deprecated'):67        assert not compiler.has_function(68            'setuptools_does_not_exist', includes=['stdio.h']69        )70 71 72def test_include_dirs_after_multiple_compile_calls(c_file):73    """74    Calling compile multiple times should not change the include dirs75    (regression test for setuptools issue #3591).76    """77    compiler = base.new_compiler()78    python = sysconfig.get_paths()['include']79    compiler.set_include_dirs([python])80    compiler.compile([c_file])81    assert compiler.include_dirs == [python]82    compiler.compile([c_file])83    assert compiler.include_dirs == [python]84