def test_DCH_DoesNothingOutsideTopBottomMargin(self):
"""DCH should do nothing outside top-bottom margins."""
escio.Write("abcde")
esccmd.DECSTBM(2, 3)
esccmd.CUP(Point(1, 1))
esccmd.DCH(99)
esccmd.DECSTBM()
AssertScreenCharsInRectEqual(Rect(1, 1, 5, 1), ["abcde"])
def test_DCH_WorksOutsideTopBottomMargin(self):
"""Per Thomas Dickey, DCH should work outside scrolling margin (see xterm
changelog for patch 316)."""
escio.Write("abcde")
esccmd.DECSTBM(2, 3)
esccmd.CUP(Point(1, 1))
esccmd.DCH(99)
esccmd.DECSTBM()
AssertScreenCharsInRectEqual(Rect(1, 1, 5, 1), [ NUL * 5 ])
def test_DCH_DoesNothingOutsideLeftRightMargin(self):
"""DCH should do nothing outside left-right margins."""
escio.Write("abcde")
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(2, 4)
esccmd.CUP(Point(1, 1))
esccmd.DCH(99)
esccmd.DECRESET(esccmd.DECLRMM)
AssertScreenCharsInRectEqual(Rect(1, 1, 5, 1), [ "abcde" ])
def test_DCH_DeleteAllWithMargins(self):
"""Delete all characters up to right margin."""
escio.Write("abcde")
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(2, 4)
esccmd.CUP(Point(3, 1))
esccmd.DCH(99)
esccmd.DECRESET(esccmd.DECLRMM)
AssertScreenCharsInRectEqual(Rect(1, 1, 5, 1), [ "ab" + NUL * 2 + "e" ]);
def test_DCH_RespectsMargins(self):
"""DCH respects left-right margins."""
escio.Write("abcde")
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(2, 4)
esccmd.CUP(Point(3, 1))
esccmd.DCH()
esccmd.DECRESET(esccmd.DECLRMM)
AssertScreenCharsInRectEqual(Rect(1, 1, 5, 1), [ "abd" + NUL + "e" ]);
def test_DCH_DefaultParam(self):
"""DCH with no parameter should delete one character at the cursor."""
escio.Write("abcd")
esccmd.CUP(Point(2, 1))
esccmd.DCH()
AssertScreenCharsInRectEqual(Rect(1, 1, 4, 1), [ "acd" + NUL ]);
def test_DCH_ExplicitParam(self):
"""DCH deletes the specified number of parameters."""
escio.Write("abcd")
esccmd.CUP(Point(2, 1))
esccmd.DCH(2)
AssertScreenCharsInRectEqual(Rect(1, 1, 4, 1), [ "ad" + NUL * 2 ]);