def test_CNL_DefaultParam(self):
"""CNL moves the cursor down 1 with no parameter given."""
esccmd.CUP(Point(5, 3))
esccmd.CNL()
position = GetCursorPosition()
AssertEQ(position.x(), 1)
AssertEQ(position.y(), 4)
def test_CNL_ExplicitParam(self):
"""CNL moves the cursor down by the passed-in number of lines."""
esccmd.CUP(Point(6, 3))
esccmd.CNL(2)
position = GetCursorPosition()
AssertEQ(position.x(), 1)
AssertEQ(position.y(), 5)
def test_CNL_StopsAtBottomLine(self):
"""CNL moves the cursor down, stopping at the last line."""
esccmd.CUP(Point(6, 3))
height = GetScreenSize().height()
esccmd.CNL(height)
position = GetCursorPosition()
AssertEQ(position.x(), 1)
AssertEQ(position.y(), height)
def test_CNL_StopsAtBottomMarginInScrollRegion(self):
"""When the cursor starts within the scroll region, CNL moves it down to the
bottom margin but no farther."""
# Set a scroll region. This must be done first because DECSTBM moves the cursor to the origin.
esccmd.DECSTBM(2, 4)
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(5, 10)
# Position the cursor within the scroll region
esccmd.CUP(Point(7, 3))
# Move it up by more than the height of the scroll region
esccmd.CNL(99)
# Ensure it stopped at the bottom of the scroll region.
position = GetCursorPosition()
AssertEQ(position.y(), 4)
AssertEQ(position.x(), 5)
def test_CNL_StopsAtBottomLineWhenBegunBelowScrollRegion(self):
"""When the cursor starts below the scroll region, CNL moves it down to the
bottom of the screen."""
# Set a scroll region. This must be done first because DECSTBM moves the cursor to the origin.
esccmd.DECSTBM(4, 5)
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(5, 10)
# Position the cursor below the scroll region
esccmd.CUP(Point(7, 6))
# Move it down by a lot
height = GetScreenSize().height()
esccmd.CNL(height)
# Ensure it stopped at the bottom of the screen
position = GetCursorPosition()
AssertEQ(position.y(), height)
AssertEQ(position.x(), 5)