def test_compiler_with_flags(tmpdir, monkeypatch):
''' Check that we can pass through flags to the Fortran compiler.
Since correct flags are compiler-dependent and hard to test,
we pass something that is definitely not a flag and check that
the compiler complains. This test is skipped if no Fortran
compiler has been specified. '''
if not utils.F90_COMPILER:
return
# Use monkeypatch for this so that we don't mess with any
# real F90_FLAGS setting in the environment.
monkeypatch.setattr(utils, "F90_FLAGS", value="not-a-flag")
old_pwd = tmpdir.chdir()
try:
with open("hello_world.f90", "w") as ffile:
ffile.write(HELLO_CODE)
with pytest.raises(utils.CompileError) as excinfo:
_ = utils.compile_file("hello_world.f90")
assert "not-a-flag" in str(excinfo)
# For completeness we also try with a valid flag although we
# can't actually check its effect.
monkeypatch.setattr(utils, "F90_FLAGS", value="-g")
success = utils.compile_file("hello_world.f90")
finally:
os.chdir(str(old_pwd))
assert success
def test_no_compiler(monkeypatch):
''' Check that attempting to build a file when no Fortran
compiler has been set returns success '''
# Use monkeypatch to mock the case where the F90 environment
# variable has not been set
monkeypatch.setattr(utils, "F90_COMPILER", value=None)
success = utils.compile_file("a_file.f90")
assert success
def test_compiler_with_flags(tmpdir, f90):
''' Check that we can pass through flags to the Fortran compiler.
Since correct flags are compiler-dependent and hard to test,
we pass something that is definitely not a flag and check that
the compiler complains. This test is skipped if no compilation
tests have been requested (--compile flag to py.test). '''
old_pwd = tmpdir.chdir()
try:
with open("hello_world.f90", "w") as ffile:
ffile.write(HELLO_CODE)
with pytest.raises(utils.CompileError) as excinfo:
_ = utils.compile_file("hello_world.f90", f90, "not-a-flag")
assert "not-a-flag" in str(excinfo)
# For completeness we also try with a valid flag although we
# can't actually check its effect.
success = utils.compile_file("hello_world.f90", f90, "-g")
finally:
os.chdir(str(old_pwd))
assert success
def test_compiler_works(tmpdir):
''' Check that the specified compiler works for a hello-world
example '''
old_pwd = tmpdir.chdir()
try:
with open("hello_world.f90", "w") as ffile:
ffile.write(HELLO_CODE)
success = utils.compile_file("hello_world.f90")
finally:
os.chdir(str(old_pwd))
assert success
def test_build_invalid_fortran(tmpdir, f90, f90flags):
''' Check that we raise the expected error when attempting
to compile some invalid Fortran. Skips test if --compile not
supplied to py.test on command-line. '''
invalid_code = HELLO_CODE.replace("write", "wite", 1)
old_pwd = tmpdir.chdir()
try:
with open("hello_world.f90", "w") as ffile:
ffile.write(invalid_code)
with pytest.raises(utils.CompileError) as excinfo:
_ = utils.compile_file("hello_world.f90", f90, f90flags)
finally:
os.chdir(str(old_pwd))
assert "Compile error" in str(excinfo)
def test_build_invalid_fortran(tmpdir):
''' Check that we raise the expected error when attempting
to compile some invalid Fortran. Skips test if no Fortran
compiler has been specified (F90 environment variable). '''
if not utils.F90_COMPILER:
return
invalid_code = HELLO_CODE.replace("write", "wite", 1)
old_pwd = tmpdir.chdir()
try:
with open("hello_world.f90", "w") as ffile:
ffile.write(invalid_code)
with pytest.raises(utils.CompileError) as excinfo:
_ = utils.compile_file("hello_world.f90")
finally:
os.chdir(str(old_pwd))
assert "Compile error" in str(excinfo)
