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_DECALN_FillsScreen(self):
"""Makes sure DECALN fills the screen with the letter E (could be anything,
but xterm uses E). Testing the whole screen would be slow so we just check
the corners and center."""
esccmd.DECALN()
size = GetScreenSize()
AssertScreenCharsInRectEqual(Rect(1, 1, 1, 1), ["E"])
AssertScreenCharsInRectEqual(Rect(size.width(), 1, size.width(), 1),
["E"])
AssertScreenCharsInRectEqual(Rect(1, size.height(), 1, size.height()),
["E"])
AssertScreenCharsInRectEqual(
Rect(size.width(), size.height(), size.width(), size.height()),
["E"])
AssertScreenCharsInRectEqual(
Rect(size.width() / 2,
size.height() / 2,
size.width() / 2,
size.height() / 2), ["E"])
def test_DECALN_MovesCursorHome(self):
esccmd.CUP(Point(5, 5))
esccmd.DECALN()
AssertEQ(GetCursorPosition(), Point(1, 1))