def test_CHT_IgnoresScrollingRegion(self):
"""Test cursor forward tab (ECMA-48).
CHT is just a parameterized tab.
In DEC terminals (and compatible such as xterm),
tabs stop at the right margin.
ECMA-48 does not specify margins, so the behavior follows DEC.
"""
# Set a scroll region.
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(5, 30)
# Move to center of region
esccmd.CUP(Point(7, 9))
# Ensure we can tab within the region
esccmd.CHT(2)
position = GetCursorPosition()
AssertEQ(position.x(), 17)
# Ensure that we can't tab out of the region
esccmd.CHT(2)
position = GetCursorPosition()
AssertEQ(position.x(), 30)
# Try again, starting before the region.
esccmd.CUP(Point(1, 9))
esccmd.CHT(9)
position = GetCursorPosition()
AssertEQ(position.x(), 30)
def test_CHT_IgnoresScrollingRegion(self):
# Set a scroll region.
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(5, 30)
# Move to center of region
esccmd.CUP(Point(7, 9))
# Ensure we can tab within the region
esccmd.CHT(2)
position = GetCursorPosition()
AssertEQ(position.x(), 17)
# Ensure that we can tab out of the region
esccmd.CHT(2)
position = GetCursorPosition()
AssertEQ(position.x(), 33)
# Try again, starting before the region.
esccmd.CUP(Point(1, 9))
esccmd.CHT(9)
position = GetCursorPosition()
AssertEQ(position.x(), 73)
def test_CHT_OneTabStopByDefault(self):
esccmd.CHT()
position = GetCursorPosition()
AssertEQ(position.x(), 9)
def test_CHT_ExplicitParameter(self):
esccmd.CHT(2)
position = GetCursorPosition()
AssertEQ(position.x(), 17)