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import textwrap, re, sys, subprocess, shlex
from pathlib import Path
from collections import namedtuple
import pytest
from . import util
from numpy.f2py.f2py2e import main as f2pycli
#########################
# CLI utils and classes #
#########################
PPaths = namedtuple("PPaths", "finp, f90inp, pyf, wrap77, wrap90, cmodf")
def get_io_paths(fname_inp, mname="untitled"):
"""Takes in a temporary file for testing and returns the expected output and input paths
Here expected output is essentially one of any of the possible generated
files.
..note::
Since this does not actually run f2py, none of these are guaranteed to
exist, and module names are typically incorrect
Parameters
----------
fname_inp : str
The input filename
mname : str, optional
The name of the module, untitled by default
Returns
-------
genp : NamedTuple PPaths
The possible paths which are generated, not all of which exist
"""
bpath = Path(fname_inp)
return PPaths(
finp=bpath.with_suffix(".f"),
f90inp=bpath.with_suffix(".f90"),
pyf=bpath.with_suffix(".pyf"),
wrap77=bpath.with_name(f"{mname}-f2pywrappers.f"),
wrap90=bpath.with_name(f"{mname}-f2pywrappers2.f90"),
cmodf=bpath.with_name(f"{mname}module.c"),
)
##############
# CLI Fixtures and Tests #
#############
@pytest.fixture(scope="session")
def hello_world_f90(tmpdir_factory):
"""Generates a single f90 file for testing"""
fdat = util.getpath("tests", "src", "cli", "hiworld.f90").read_text()
fn = tmpdir_factory.getbasetemp() / "hello.f90"
fn.write_text(fdat, encoding="ascii")
return fn
@pytest.fixture(scope="session")
def gh23598_warn(tmpdir_factory):
"""F90 file for testing warnings in gh23598"""
fdat = util.getpath("tests", "src", "crackfortran", "gh23598Warn.f90").read_text()
fn = tmpdir_factory.getbasetemp() / "gh23598Warn.f90"
fn.write_text(fdat, encoding="ascii")
return fn
@pytest.fixture(scope="session")
def hello_world_f77(tmpdir_factory):
"""Generates a single f77 file for testing"""
fdat = util.getpath("tests", "src", "cli", "hi77.f").read_text()
fn = tmpdir_factory.getbasetemp() / "hello.f"
fn.write_text(fdat, encoding="ascii")
return fn
@pytest.fixture(scope="session")
def retreal_f77(tmpdir_factory):
"""Generates a single f77 file for testing"""
fdat = util.getpath("tests", "src", "return_real", "foo77.f").read_text()
fn = tmpdir_factory.getbasetemp() / "foo.f"
fn.write_text(fdat, encoding="ascii")
return fn
@pytest.fixture(scope="session")
def f2cmap_f90(tmpdir_factory):
"""Generates a single f90 file for testing"""
fdat = util.getpath("tests", "src", "f2cmap", "isoFortranEnvMap.f90").read_text()
f2cmap = util.getpath("tests", "src", "f2cmap", ".f2py_f2cmap").read_text()
fn = tmpdir_factory.getbasetemp() / "f2cmap.f90"
fmap = tmpdir_factory.getbasetemp() / "mapfile"
fn.write_text(fdat, encoding="ascii")
fmap.write_text(f2cmap, encoding="ascii")
return fn
def test_gh23598_warn(capfd, gh23598_warn, monkeypatch):
foutl = get_io_paths(gh23598_warn, mname="test")
ipath = foutl.f90inp
monkeypatch.setattr(
sys, "argv",
f'f2py {ipath} -m test'.split())
with util.switchdir(ipath.parent):
f2pycli() # Generate files
wrapper = foutl.wrap90.read_text()
assert "intproductf2pywrap, intpr" not in wrapper
def test_gen_pyf(capfd, hello_world_f90, monkeypatch):
"""Ensures that a signature file is generated via the CLI
CLI :: -h
"""
ipath = Path(hello_world_f90)
opath = Path(hello_world_f90).stem + ".pyf"
monkeypatch.setattr(sys, "argv", f'f2py -h {opath} {ipath}'.split())
with util.switchdir(ipath.parent):
f2pycli() # Generate wrappers
out, _ = capfd.readouterr()
assert "Saving signatures to file" in out
assert Path(f'{opath}').exists()
def test_gen_pyf_stdout(capfd, hello_world_f90, monkeypatch):
"""Ensures that a signature file can be dumped to stdout
CLI :: -h
"""
ipath = Path(hello_world_f90)
monkeypatch.setattr(sys, "argv", f'f2py -h stdout {ipath}'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert "Saving signatures to file" in out
assert "function hi() ! in " in out
def test_gen_pyf_no_overwrite(capfd, hello_world_f90, monkeypatch):
"""Ensures that the CLI refuses to overwrite signature files
CLI :: -h without --overwrite-signature
"""
ipath = Path(hello_world_f90)
monkeypatch.setattr(sys, "argv", f'f2py -h faker.pyf {ipath}'.split())
with util.switchdir(ipath.parent):
Path("faker.pyf").write_text("Fake news", encoding="ascii")
with pytest.raises(SystemExit):
f2pycli() # Refuse to overwrite
_, err = capfd.readouterr()
assert "Use --overwrite-signature to overwrite" in err
@pytest.mark.xfail
def test_f2py_skip(capfd, retreal_f77, monkeypatch):
"""Tests that functions can be skipped
CLI :: skip:
"""
foutl = get_io_paths(retreal_f77, mname="test")
ipath = foutl.finp
toskip = "t0 t4 t8 sd s8 s4"
remaining = "td s0"
monkeypatch.setattr(
sys, "argv",
f'f2py {ipath} -m test skip: {toskip}'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, err = capfd.readouterr()
for skey in toskip.split():
assert (
f'buildmodule: Could not found the body of interfaced routine "{skey}". Skipping.'
in err)
for rkey in remaining.split():
assert f'Constructing wrapper function "{rkey}"' in out
def test_f2py_only(capfd, retreal_f77, monkeypatch):
"""Test that functions can be kept by only:
CLI :: only:
"""
foutl = get_io_paths(retreal_f77, mname="test")
ipath = foutl.finp
toskip = "t0 t4 t8 sd s8 s4"
tokeep = "td s0"
monkeypatch.setattr(
sys, "argv",
f'f2py {ipath} -m test only: {tokeep}'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, err = capfd.readouterr()
for skey in toskip.split():
assert (
f'buildmodule: Could not find the body of interfaced routine "{skey}". Skipping.'
in err)
for rkey in tokeep.split():
assert f'Constructing wrapper function "{rkey}"' in out
def test_file_processing_switch(capfd, hello_world_f90, retreal_f77,
monkeypatch):
"""Tests that it is possible to return to file processing mode
CLI :: :
BUG: numpy-gh #20520
"""
foutl = get_io_paths(retreal_f77, mname="test")
ipath = foutl.finp
toskip = "t0 t4 t8 sd s8 s4"
ipath2 = Path(hello_world_f90)
tokeep = "td s0 hi" # hi is in ipath2
mname = "blah"
monkeypatch.setattr(
sys,
"argv",
f'f2py {ipath} -m {mname} only: {tokeep} : {ipath2}'.split(
),
)
with util.switchdir(ipath.parent):
f2pycli()
out, err = capfd.readouterr()
for skey in toskip.split():
assert (
f'buildmodule: Could not find the body of interfaced routine "{skey}". Skipping.'
in err)
for rkey in tokeep.split():
assert f'Constructing wrapper function "{rkey}"' in out
def test_mod_gen_f77(capfd, hello_world_f90, monkeypatch):
"""Checks the generation of files based on a module name
CLI :: -m
"""
MNAME = "hi"
foutl = get_io_paths(hello_world_f90, mname=MNAME)
ipath = foutl.f90inp
monkeypatch.setattr(sys, "argv", f'f2py {ipath} -m {MNAME}'.split())
with util.switchdir(ipath.parent):
f2pycli()
# Always generate C module
assert Path.exists(foutl.cmodf)
# File contains a function, check for F77 wrappers
assert Path.exists(foutl.wrap77)
def test_lower_cmod(capfd, hello_world_f77, monkeypatch):
"""Lowers cases by flag or when -h is present
CLI :: --[no-]lower
"""
foutl = get_io_paths(hello_world_f77, mname="test")
ipath = foutl.finp
capshi = re.compile(r"HI\(\)")
capslo = re.compile(r"hi\(\)")
# Case I: --lower is passed
monkeypatch.setattr(sys, "argv", f'f2py {ipath} -m test --lower'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert capslo.search(out) is not None
assert capshi.search(out) is None
# Case II: --no-lower is passed
monkeypatch.setattr(sys, "argv",
f'f2py {ipath} -m test --no-lower'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert capslo.search(out) is None
assert capshi.search(out) is not None
def test_lower_sig(capfd, hello_world_f77, monkeypatch):
"""Lowers cases in signature files by flag or when -h is present
CLI :: --[no-]lower -h
"""
foutl = get_io_paths(hello_world_f77, mname="test")
ipath = foutl.finp
# Signature files
capshi = re.compile(r"Block: HI")
capslo = re.compile(r"Block: hi")
# Case I: --lower is implied by -h
# TODO: Clean up to prevent passing --overwrite-signature
monkeypatch.setattr(
sys,
"argv",
f'f2py {ipath} -h {foutl.pyf} -m test --overwrite-signature'.split(),
)
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert capslo.search(out) is not None
assert capshi.search(out) is None
# Case II: --no-lower overrides -h
monkeypatch.setattr(
sys,
"argv",
f'f2py {ipath} -h {foutl.pyf} -m test --overwrite-signature --no-lower'
.split(),
)
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert capslo.search(out) is None
assert capshi.search(out) is not None
def test_build_dir(capfd, hello_world_f90, monkeypatch):
"""Ensures that the build directory can be specified
CLI :: --build-dir
"""
ipath = Path(hello_world_f90)
mname = "blah"
odir = "tttmp"
monkeypatch.setattr(sys, "argv",
f'f2py -m {mname} {ipath} --build-dir {odir}'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert f"Wrote C/API module \"{mname}\"" in out
def test_overwrite(capfd, hello_world_f90, monkeypatch):
"""Ensures that the build directory can be specified
CLI :: --overwrite-signature
"""
ipath = Path(hello_world_f90)
monkeypatch.setattr(
sys, "argv",
f'f2py -h faker.pyf {ipath} --overwrite-signature'.split())
with util.switchdir(ipath.parent):
Path("faker.pyf").write_text("Fake news", encoding="ascii")
f2pycli()
out, _ = capfd.readouterr()
assert "Saving signatures to file" in out
def test_latexdoc(capfd, hello_world_f90, monkeypatch):
"""Ensures that TeX documentation is written out
CLI :: --latex-doc
"""
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(sys, "argv",
f'f2py -m {mname} {ipath} --latex-doc'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert "Documentation is saved to file" in out
with Path(f"{mname}module.tex").open() as otex:
assert "\\documentclass" in otex.read()
def test_nolatexdoc(capfd, hello_world_f90, monkeypatch):
"""Ensures that TeX documentation is written out
CLI :: --no-latex-doc
"""
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(sys, "argv",
f'f2py -m {mname} {ipath} --no-latex-doc'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert "Documentation is saved to file" not in out
def test_shortlatex(capfd, hello_world_f90, monkeypatch):
"""Ensures that truncated documentation is written out
TODO: Test to ensure this has no effect without --latex-doc
CLI :: --latex-doc --short-latex
"""
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(
sys,
"argv",
f'f2py -m {mname} {ipath} --latex-doc --short-latex'.split(),
)
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert "Documentation is saved to file" in out
with Path(f"./{mname}module.tex").open() as otex:
assert "\\documentclass" not in otex.read()
def test_restdoc(capfd, hello_world_f90, monkeypatch):
"""Ensures that RsT documentation is written out
CLI :: --rest-doc
"""
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(sys, "argv",
f'f2py -m {mname} {ipath} --rest-doc'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert "ReST Documentation is saved to file" in out
with Path(f"./{mname}module.rest").open() as orst:
assert r".. -*- rest -*-" in orst.read()
def test_norestexdoc(capfd, hello_world_f90, monkeypatch):
"""Ensures that TeX documentation is written out
CLI :: --no-rest-doc
"""
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(sys, "argv",
f'f2py -m {mname} {ipath} --no-rest-doc'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert "ReST Documentation is saved to file" not in out
def test_debugcapi(capfd, hello_world_f90, monkeypatch):
"""Ensures that debugging wrappers are written
CLI :: --debug-capi
"""
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(sys, "argv",
f'f2py -m {mname} {ipath} --debug-capi'.split())
with util.switchdir(ipath.parent):
f2pycli()
with Path(f"./{mname}module.c").open() as ocmod:
assert r"#define DEBUGCFUNCS" in ocmod.read()
@pytest.mark.xfail(reason="Consistently fails on CI.")
def test_debugcapi_bld(hello_world_f90, monkeypatch):
"""Ensures that debugging wrappers work
CLI :: --debug-capi -c
"""
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(sys, "argv",
f'f2py -m {mname} {ipath} -c --debug-capi'.split())
with util.switchdir(ipath.parent):
f2pycli()
cmd_run = shlex.split("python3 -c \"import blah; blah.hi()\"")
rout = subprocess.run(cmd_run, capture_output=True, encoding='UTF-8')
eout = ' Hello World\n'
eerr = textwrap.dedent("""\
debug-capi:Python C/API function blah.hi()
debug-capi:float hi=:output,hidden,scalar
debug-capi:hi=0
debug-capi:Fortran subroutine `f2pywraphi(&hi)'
debug-capi:hi=0
debug-capi:Building return value.
debug-capi:Python C/API function blah.hi: successful.
debug-capi:Freeing memory.
""")
assert rout.stdout == eout
assert rout.stderr == eerr
def test_wrapfunc_def(capfd, hello_world_f90, monkeypatch):
"""Ensures that fortran subroutine wrappers for F77 are included by default
CLI :: --[no]-wrap-functions
"""
# Implied
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(sys, "argv", f'f2py -m {mname} {ipath}'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert r"Fortran 77 wrappers are saved to" in out
# Explicit
monkeypatch.setattr(sys, "argv",
f'f2py -m {mname} {ipath} --wrap-functions'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert r"Fortran 77 wrappers are saved to" in out
def test_nowrapfunc(capfd, hello_world_f90, monkeypatch):
"""Ensures that fortran subroutine wrappers for F77 can be disabled
CLI :: --no-wrap-functions
"""
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(sys, "argv",
f'f2py -m {mname} {ipath} --no-wrap-functions'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert r"Fortran 77 wrappers are saved to" not in out
def test_inclheader(capfd, hello_world_f90, monkeypatch):
"""Add to the include directories
CLI :: -include
TODO: Document this in the help string
"""
ipath = Path(hello_world_f90)
mname = "blah"
monkeypatch.setattr(
sys,
"argv",
f'f2py -m {mname} {ipath} -include<stdbool.h> -include<stdio.h> '.
split(),
)
with util.switchdir(ipath.parent):
f2pycli()
with Path(f"./{mname}module.c").open() as ocmod:
ocmr = ocmod.read()
assert "#include <stdbool.h>" in ocmr
assert "#include <stdio.h>" in ocmr
def test_inclpath():
"""Add to the include directories
CLI :: --include-paths
"""
# TODO: populate
pass
def test_hlink():
"""Add to the include directories
CLI :: --help-link
"""
# TODO: populate
pass
def test_f2cmap(capfd, f2cmap_f90, monkeypatch):
"""Check that Fortran-to-Python KIND specs can be passed
CLI :: --f2cmap
"""
ipath = Path(f2cmap_f90)
monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} --f2cmap mapfile'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert "Reading f2cmap from 'mapfile' ..." in out
assert "Mapping \"real(kind=real32)\" to \"float\"" in out
assert "Mapping \"real(kind=real64)\" to \"double\"" in out
assert "Mapping \"integer(kind=int64)\" to \"long_long\"" in out
assert "Successfully applied user defined f2cmap changes" in out
def test_quiet(capfd, hello_world_f90, monkeypatch):
"""Reduce verbosity
CLI :: --quiet
"""
ipath = Path(hello_world_f90)
monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} --quiet'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert len(out) == 0
def test_verbose(capfd, hello_world_f90, monkeypatch):
"""Increase verbosity
CLI :: --verbose
"""
ipath = Path(hello_world_f90)
monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} --verbose'.split())
with util.switchdir(ipath.parent):
f2pycli()
out, _ = capfd.readouterr()
assert "analyzeline" in out
def test_version(capfd, monkeypatch):
"""Ensure version
CLI :: -v
"""
monkeypatch.setattr(sys, "argv", 'f2py -v'.split())
# TODO: f2py2e should not call sys.exit() after printing the version
with pytest.raises(SystemExit):
f2pycli()
out, _ = capfd.readouterr()
import numpy as np
assert np.__version__ == out.strip()
@pytest.mark.xfail(reason="Consistently fails on CI.")
def test_npdistop(hello_world_f90, monkeypatch):
"""
CLI :: -c
"""
ipath = Path(hello_world_f90)
monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} -c'.split())
with util.switchdir(ipath.parent):
f2pycli()
cmd_run = shlex.split("python -c \"import blah; blah.hi()\"")
rout = subprocess.run(cmd_run, capture_output=True, encoding='UTF-8')
eout = ' Hello World\n'
assert rout.stdout == eout
# Numpy distutils flags
# TODO: These should be tested separately
def test_npd_fcompiler():
"""
CLI :: -c --fcompiler
"""
# TODO: populate
pass
def test_npd_compiler():
"""
CLI :: -c --compiler
"""
# TODO: populate
pass
def test_npd_help_fcompiler():
"""
CLI :: -c --help-fcompiler
"""
# TODO: populate
pass
def test_npd_f77exec():
"""
CLI :: -c --f77exec
"""
# TODO: populate
pass
def test_npd_f90exec():
"""
CLI :: -c --f90exec
"""
# TODO: populate
pass
def test_npd_f77flags():
"""
CLI :: -c --f77flags
"""
# TODO: populate
pass
def test_npd_f90flags():
"""
CLI :: -c --f90flags
"""
# TODO: populate
pass
def test_npd_opt():
"""
CLI :: -c --opt
"""
# TODO: populate
pass
def test_npd_arch():
"""
CLI :: -c --arch
"""
# TODO: populate
pass
def test_npd_noopt():
"""
CLI :: -c --noopt
"""
# TODO: populate
pass
def test_npd_noarch():
"""
CLI :: -c --noarch
"""
# TODO: populate
pass
def test_npd_debug():
"""
CLI :: -c --debug
"""
# TODO: populate
pass
def test_npd_link_auto():
"""
CLI :: -c --link-<resource>
"""
# TODO: populate
pass
def test_npd_lib():
"""
CLI :: -c -L/path/to/lib/ -l<libname>
"""
# TODO: populate
pass
def test_npd_define():
"""
CLI :: -D<define>
"""
# TODO: populate
pass
def test_npd_undefine():
"""
CLI :: -U<name>
"""
# TODO: populate
pass
def test_npd_incl():
"""
CLI :: -I/path/to/include/
"""
# TODO: populate
pass
def test_npd_linker():
"""
CLI :: <filename>.o <filename>.so <filename>.a
"""
# TODO: populate
pass
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