def test_changedt(create_files_in_directory_plus_output_type):
files, testdir, out_ext = create_files_in_directory_plus_output_type
# Get some fslmaths
cdt = fsl.ChangeDataType()
# Test that we got what we wanted
assert cdt.cmd == "fslmaths"
# Test that it needs a mandatory argument
with pytest.raises(ValueError):
cdt.run()
# Set an in file and out file
cdt.inputs.in_file = "a.nii"
cdt.inputs.out_file = "b.nii"
# But it still shouldn't work
with pytest.raises(ValueError):
cdt.run()
# Now test that we can set the various data types
dtypes = ["float", "char", "int", "short", "double", "input"]
cmdline = "fslmaths a.nii b.nii -odt {}"
for dtype in dtypes:
foo = fsl.MathsCommand(in_file="a.nii",
out_file="b.nii",
output_datatype=dtype)
assert foo.cmdline == cmdline.format(dtype)
def test_changedt(fsl_output_type=None):
prev_type = set_output_type(fsl_output_type)
files, testdir, origdir, out_ext = create_files_in_directory()
# Get some fslmaths
cdt = fsl.ChangeDataType()
# Test that we got what we wanted
yield assert_equal, cdt.cmd, "fslmaths"
# Test that it needs a mandatory argument
yield assert_raises, ValueError, cdt.run
# Set an in file and out file
cdt.inputs.in_file = "a.nii"
cdt.inputs.out_file = "b.nii"
# But it still shouldn't work
yield assert_raises, ValueError, cdt.run
# Now test that we can set the various data types
dtypes = ["float", "char", "int", "short", "double", "input"]
cmdline = "fslmaths a.nii b.nii -odt %s"
for dtype in dtypes:
foo = fsl.MathsCommand(in_file="a.nii", out_file="b.nii", output_datatype=dtype)
yield assert_equal, foo.cmdline, cmdline % dtype
# Clean up our mess
clean_directory(testdir, origdir)
set_output_type(prev_type)