def test_DECALN_ClearsMargins(self):
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(2, 3)
esccmd.DECSTBM(4, 5)
esccmd.DECALN()
# Verify we can pass the top margin
esccmd.CUP(Point(2, 4))
esccmd.CUU()
AssertEQ(GetCursorPosition(), Point(2, 3))
# Verify we can pass the bottom margin
esccmd.CUP(Point(2, 5))
esccmd.CUD()
AssertEQ(GetCursorPosition(), Point(2, 6))
# Verify we can pass the left margin
esccmd.CUP(Point(2, 4))
esccmd.CUB()
AssertEQ(GetCursorPosition(), Point(1, 4))
# Verify we can pass the right margin
esccmd.CUP(Point(3, 4))
esccmd.CUF()
AssertEQ(GetCursorPosition(), Point(4, 4))
def test_CUU_DefaultParam(self):
"""CUU moves the cursor up 1 with no parameter given."""
esccmd.CUP(Point(5, 3))
esccmd.CUU()
position = GetCursorPosition()
AssertEQ(position.x(), 5)
AssertEQ(position.y(), 2)
def test_CUU_StopsAtTopMarginInScrollRegion(self):
"""When the cursor starts within the scroll region, CUU moves it up to the
top 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)
# Position the cursor within the scroll region
esccmd.CUP(Point(1, 3))
# Move it up by more than the height of the scroll region
esccmd.CUU(99)
# Ensure it stopped at the top of the scroll region.
AssertEQ(GetCursorPosition().y(), 2)
def test_CUU_StopsAtTopLineWhenBegunAboveScrollRegion(self):
"""When the cursor starts above the scroll region, CUU moves it up to the
top of the screen."""
# Set a scroll region. This must be done first because DECSTBM moves the cursor to the origin.
esccmd.DECSTBM(4, 5)
# Position the cursor above the scroll region
esccmd.CUP(Point(1, 3))
# Move it up by a lot
esccmd.CUU(99)
# Ensure it stopped at the top of the screen
AssertEQ(GetCursorPosition().y(), 1)
def test_RIS_RemoveMargins(self):
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(3, 5)
esccmd.DECSTBM(4, 6)
esccmd.RIS()
esccmd.CUP(Point(3, 4))
esccmd.CUB()
AssertEQ(GetCursorPosition(), Point(2, 4))
esccmd.CUU()
AssertEQ(GetCursorPosition(), Point(2, 3))
esccmd.CUP(Point(5, 6))
esccmd.CUF()
AssertEQ(GetCursorPosition(), Point(6, 6))
esccmd.CUD()
AssertEQ(GetCursorPosition(), Point(6, 7))
def test_CUU_StopsAtTopLine(self):
"""CUU moves the cursor up, stopping at the first line."""
esccmd.CUP(Point(1, 3))
esccmd.CUU(99)
AssertEQ(GetCursorPosition().y(), 1)
def test_CUU_ExplicitParam(self):
"""CUU moves the cursor up by the passed-in number of lines."""
esccmd.CUP(Point(1, 3))
esccmd.CUU(2)
AssertEQ(GetCursorPosition().y(), 1)