def test_unarymaths(create_files_in_directory_plus_output_type):
files, testdir, out_ext = create_files_in_directory_plus_output_type
# Get the command
maths = fsl.UnaryMaths(in_file="a.nii", out_file="b.nii")
# Test the underlying command
assert maths.cmd == "fslmaths"
# Test that it fails without an operation
with pytest.raises(ValueError):
maths.run()
# Test the different operations
ops = [
"exp", "log", "sin", "cos", "sqr", "sqrt", "recip", "abs", "bin",
"index"
]
for op in ops:
maths.inputs.operation = op
assert maths.cmdline == "fslmaths a.nii -{} b.nii".format(op)
# Test that we don't need to ask for an out file
for op in ops:
maths = fsl.UnaryMaths(in_file="a.nii", operation=op)
assert maths.cmdline == "fslmaths a.nii -{} {}".format(
op, os.path.join(testdir, "a_{}{}".format(op, out_ext)))
def test_unarymaths(fsl_output_type=None):
prev_type = set_output_type(fsl_output_type)
files, testdir, origdir, out_ext = create_files_in_directory()
# Get the command
maths = fsl.UnaryMaths(in_file="a.nii", out_file="b.nii")
# Test the underlying command
yield assert_equal, maths.cmd, "fslmaths"
# Test that it fails without an operation
yield assert_raises, ValueError, maths.run
# Test the different operations
ops = ["exp", "log", "sin", "cos", "sqr", "sqrt", "recip", "abs", "bin", "index"]
for op in ops:
maths.inputs.operation = op
yield assert_equal, maths.cmdline, "fslmaths a.nii -%s b.nii" % op
# Test that we don't need to ask for an out file
for op in ops:
maths = fsl.UnaryMaths(in_file="a.nii", operation=op)
yield assert_equal, maths.cmdline, "fslmaths a.nii -%s %s" % (op, os.path.join(testdir, "a_%s%s" % (op, out_ext)))
# Clean up our mess
clean_directory(testdir, origdir)
set_output_type(prev_type)