def test_DECSED_1_WithScrollRegion_Protection(self):
"""Erase after cursor with a scroll region present. The scroll region is ignored."""
esccmd.DECSCA(1)
self.prepare_wide()
# Write an X at 1,1 without protection
esccmd.DECSCA(0)
esccmd.CUP(Point(1, 1))
escio.Write("X")
# Set margins
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(2, 4)
esccmd.DECSTBM(2, 3)
# Position cursor and do DECSED 1
esccmd.CUP(Point(3, 2))
esccmd.DECSED(1)
# Remove margins
esccmd.DECRESET(esccmd.DECLRMM)
esccmd.DECSTBM()
AssertScreenCharsInRectEqual(Rect(1, 1, 5, 3),
[blank() + "bcde", "fghij", "klmno"])
def prepare(self):
esccmd.CUP(Point(1, 1))
i = 1
for line in self.data():
# Protect odd-numbered rows
esccmd.DECSCA(i)
escio.Write(line + esc.CR + esc.LF)
i = 1 - i
esccmd.DECSCA(0)
def test_ED_doesNotRespectDECProtection(self):
"""ED should not respect DECSCA"""
escio.Write("a")
escio.Write("b")
esccmd.DECSCA(1)
escio.Write("c")
esccmd.DECSCA(0)
esccmd.CUP(Point(1, 1))
esccmd.ED(0)
AssertScreenCharsInRectEqual(Rect(1, 1, 3, 1), [empty() * 3])
def test_EL_doesNotRespectDECProtection(self):
"""EL respects DECSCA."""
escio.Write("a")
escio.Write("b")
esccmd.DECSCA(1)
escio.Write("c")
esccmd.DECSCA(0)
esccmd.CUP(Point(1, 1))
esccmd.EL(2)
AssertScreenCharsInRectEqual(Rect(1, 1, 3, 1), [empty() * 3])
def test_ECH_doesNotRespectDECPRotection(self):
"""ECH should not respect DECSCA."""
escio.Write("a")
escio.Write("b")
esccmd.DECSCA(1)
escio.Write("c")
esccmd.DECSCA(0)
esccmd.CUP(Point(1, 1))
esccmd.ECH(3)
AssertScreenCharsInRectEqual(Rect(1, 1, 3, 1), [blank() * 3])
def test_DECSEL_2_Protection(self):
"""All letters are protected so nothing should happen."""
esccmd.DECSCA(1)
self.prepare()
# Write an X at 1,1 without protection
esccmd.DECSCA(0)
esccmd.CUP(Point(1, 1))
escio.Write("X")
esccmd.DECSEL(2)
AssertScreenCharsInRectEqual(Rect(1, 1, 10, 1),
[blank() + "bcdefghij"])
def test_SaveRestoreCursor_Protection(self):
# Turn on protection and save
esccmd.DECSCA(1)
self.saveCursor()
# Turn off and restore. Restore should turn protection back on.
esccmd.DECSCA(0)
self.restoreCursor()
# Write a protected character and try to erase it, which should fail.
escio.Write("a")
esccmd.DECSERA(1, 1, 1, 1)
AssertScreenCharsInRectEqual(Rect(1, 1, 1, 1), ["a"])
def test_DECSEL_Default_Protection(self):
"""Should erase to right of cursor."""
esccmd.DECSCA(1)
self.prepare()
# Write an X at 1,1 without protection
esccmd.DECSCA(0)
esccmd.CUP(Point(10, 1))
escio.Write("X")
esccmd.CUP(Point(5, 1))
esccmd.DECSEL()
AssertScreenCharsInRectEqual(Rect(1, 1, 10, 1), ["abcdefghi" + NUL])
def test_DECSED_DECSCA_2(self):
"""DECSCA 2 should be the same as DECSCA 0."""
esccmd.DECSCA(1)
self.prepare()
# Write an X at 2,1 without protection
esccmd.DECSCA(2)
esccmd.CUP(Point(2, 5))
escio.Write("X")
esccmd.CUP(Point(2, 3))
esccmd.DECSED()
AssertScreenCharsInRectEqual(
Rect(1, 1, 3,
5), ["a" + NUL * 2, NUL * 3, "bcd", NUL * 3, "e" + NUL * 2])
def test_DECSED_2_Protection(self):
"""Erase whole screen."""
esccmd.DECSCA(1)
self.prepare()
# Write an X at 2,1 without protection
esccmd.DECSCA(0)
esccmd.CUP(Point(2, 1))
escio.Write("X")
# Erase the screen
esccmd.DECSED(2)
AssertScreenCharsInRectEqual(
Rect(1, 1, 3,
5), ["a" + NUL * 2, NUL * 3, "bcd", NUL * 3, "e" + NUL * 2])
def test_DECSED_3_Protection(self):
"""xterm supports a "3" parameter, which also erases scrollback history. There
is no way to test if it's working, though. We can at least test that it doesn't
touch the screen."""
esccmd.DECSCA(1)
self.prepare()
# Write an X at 2,1 without protection
esccmd.DECSCA(0)
esccmd.CUP(Point(2, 1))
escio.Write("X")
esccmd.DECSED(3)
AssertScreenCharsInRectEqual(Rect(
1, 1, 3, 5), ["aX" + NUL, NUL * 3, "bcd", NUL * 3, "e" + NUL * 2])
def test_DECSED_Default_Protection(self):
"""Should be the same as DECSED_0."""
esccmd.DECSCA(1)
self.prepare()
# Write an X at 2,1 without protection
esccmd.DECSCA(0)
esccmd.CUP(Point(2, 5))
escio.Write("X")
esccmd.CUP(Point(2, 3))
esccmd.DECSED()
AssertScreenCharsInRectEqual(Rect(1, 1, 3, 5), [
"a" + empty() * 2,
empty() * 3, "bcd",
empty() * 3, "e" + empty() * 2
])
def test_DECSED_0_Protection(self):
"""Erase after cursor."""
esccmd.DECSCA(1)
self.prepare()
# Write this to verify that DECSED is actually doing something.
esccmd.DECSCA(0)
esccmd.CUP(Point(2, 5))
escio.Write("X")
esccmd.CUP(Point(2, 3))
esccmd.DECSED(0)
# X should be erased, other characters not.
AssertScreenCharsInRectEqual(
Rect(1, 1, 3,
5), ["a" + NUL * 2, NUL * 3, "bcd", NUL * 3, "e" + NUL * 2])
def test_DECSED_1_Protection(self):
"""Erase before cursor."""
esccmd.DECSCA(1)
self.prepare()
# Write an X at 2,1 without protection
esccmd.DECSCA(0)
esccmd.CUP(Point(2, 1))
escio.Write("X")
esccmd.CUP(Point(2, 3))
esccmd.DECSED(1)
AssertScreenCharsInRectEqual(Rect(1, 1, 3, 5), [
"a" + empty() * 2,
empty() * 3, "bcd",
empty() * 3, "e" + empty() * 2
])
def test_DECSED_2_WithScrollRegion_Protection(self):
"""Erase whole screen with a scroll region present. The scroll region is ignored."""
esccmd.DECSCA(1)
self.prepare_wide()
# Write an X at 1,1 without protection
esccmd.DECSCA(0)
esccmd.CUP(Point(1, 1))
escio.Write("X")
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(2, 4)
esccmd.DECSTBM(2, 3)
esccmd.CUP(Point(3, 2))
esccmd.DECSED(2)
esccmd.DECRESET(esccmd.DECLRMM)
esccmd.DECSTBM()
AssertScreenCharsInRectEqual(Rect(1, 1, 5, 3),
[blank() + "bcde", "fghij", "klmno"])
def test_DECSTR_DECSCA(self):
# Turn on character protection
esccmd.DECSCA(1)
# Perform soft reset
esccmd.DECSTR()
# Ensure character protection is off
esccmd.CUP(Point(1, 1))
escio.Write("X")
esccmd.DECSED(2)
AssertScreenCharsInRectEqual(Rect(1, 1, 1, 1), [NUL])
def test_DECRQSS_DECSCA(self):
esccmd.DECSCA(1)
esccmd.DECRQSS('"q')
result = escio.ReadDCS()
AssertEQ(result, '1$r1"q')
