def test_DECDC_DefaultParam(self):
"""Test DECDC with default parameter """
esccmd.CUP(Point(1, 1))
AssertEQ(GetCursorPosition().x(), 1)
escio.Write("abcdefg" + CR + LF + "ABCDEFG")
esccmd.CUP(Point(2, 1))
AssertEQ(GetCursorPosition().x(), 2)
esccmd.DECDC()
AssertScreenCharsInRectEqual(Rect(1, 1, 7, 2),
["acdefg" + NUL, "ACDEFG" + NUL])
def test_DECDC_ExplicitParam(self):
"""Test DECDC with explicit parameter. Also verifies lines above and below
the cursor are affected."""
esccmd.CUP(Point(1, 1))
AssertEQ(GetCursorPosition().x(), 1)
escio.Write("abcdefg" + CR + LF + "ABCDEFG" + CR + LF + "zyxwvut")
esccmd.CUP(Point(2, 2))
AssertEQ(GetCursorPosition().x(), 2)
esccmd.DECDC(2)
AssertScreenCharsInRectEqual(
Rect(1, 1, 7,
3), ["adefg" + NUL * 2, "ADEFG" + NUL * 2, "zwvut" + NUL * 2])
def test_DECDC_DeleteAll(self):
"""Test DECDC behavior when deleting more columns than are available."""
width = GetScreenSize().width()
s = "abcdefg"
startX = width - len(s) + 1
esccmd.CUP(Point(startX, 1))
escio.Write(s)
esccmd.CUP(Point(startX, 2))
escio.Write(s.upper())
esccmd.CUP(Point(startX + 1, 1))
esccmd.DECDC(width + 10)
AssertScreenCharsInRectEqual(Rect(startX, 1, width, 2),
["a" + NUL * 6, "A" + NUL * 6])
# Ensure there is no wrap-around.
AssertScreenCharsInRectEqual(Rect(1, 2, 1, 3), [NUL, NUL])
def test_DECDC_IsNoOpWhenCursorBeginsOutsideScrollRegion(self):
"""Ensure DECDC does nothing when the cursor starts out outside the scroll
region."""
esccmd.CUP(Point(1, 1))
escio.Write("abcdefg" + CR + LF + "ABCDEFG")
# Set margin: from columns 2 to 5
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(2, 5)
# Position cursor outside margins
esccmd.CUP(Point(1, 1))
# Insert blanks
esccmd.DECDC(10)
# Ensure nothing happened.
esccmd.DECRESET(esccmd.DECLRMM)
AssertScreenCharsInRectEqual(Rect(1, 1, 7, 2), ["abcdefg", "ABCDEFG"])
def test_DECDC_CursorWithinTopBottom(self):
"""DECDC should only affect rows inside region."""
esccmd.DECSTBM()
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(1, 20)
# Write four lines. The middle two will be in the scroll region.
esccmd.CUP(Point(1, 1))
escio.Write("abcdefg" + CR + LF + "ABCDEFG" + CR + LF + "zyxwvut" +
CR + LF + "ZYXWVUT")
# Define a scroll region. Place the cursor in it. Insert a column.
esccmd.DECSTBM(2, 3)
esccmd.CUP(Point(2, 2))
esccmd.DECDC(2)
# Remove scroll region and see if it worked.
esccmd.DECSTBM()
esccmd.DECRESET(esccmd.DECLRMM)
AssertScreenCharsInRectEqual(
Rect(1, 1, 7, 4),
["abcdefg", "ADEFG" + NUL * 2, "zwvut" + NUL * 2, "ZYXWVUT"])
def test_DECDC_DeleteAllWithLeftRightMargins(self):
"""Test DECDC when cursor is within the scroll region."""
esccmd.CUP(Point(1, 1))
s = "abcdefg"
escio.Write(s)
esccmd.CUP(Point(1, 2))
escio.Write(s.upper())
# Set margin: from columns 2 to 5
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(2, 5)
# Position cursor inside margins
esccmd.CUP(Point(3, 1))
# Insert blank
esccmd.DECDC(99)
esccmd.DECRESET(esccmd.DECLRMM)
AssertScreenCharsInRectEqual(Rect(
1, 1, 7, 2), ["ab" + NUL * 3 + "fg", "AB" + NUL * 3 + "FG"])