<filename>sympy/printing/tests/test_gtk.py
from sympy import print_gtk, sin
from sympy.utilities.pytest import XFAIL, raises

# this test fails if python-libxml2 isn't installed. We don't want to depend on
# anything with SymPy
@XFAIL
def test_1():
    from sympy.abc import x
    print_gtk(x**2, start_viewer=False)
    print_gtk(x**2+sin(x)/4, start_viewer=False)

def test_settings():
    from sympy.abc import x
    raises(TypeError, 'print_gtk(x, method="garbage")')

<filename>sympy/printing/tests/test_gtk.py
from sympy import print_gtk, sin
from sympy.utilities.pytest import XFAIL, raises

# this test fails if python-libxml2 isn't installed. We don't want to depend on
# anything with SymPy
@XFAIL
def test_1():
    from sympy.abc import x
    print_gtk(x**2, start_viewer=False)
    print_gtk(x**2+sin(x)/4, start_viewer=False)

def test_settings():
    from sympy.abc import x
    raises(TypeError, 'print_gtk(x, method="garbage")')

# this test fails if python-libxml2 isn't installed. We don't want to depend on # anything with SymPy