def test_DECBI_Scrolls(self):
strings = [ "abcde",
"fghij",
"klmno",
"pqrst",
"uvwxy" ]
y = 3
for s in strings:
esccmd.CUP(Point(2, y))
escio.Write(s)
y += 1
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(3, 5)
esccmd.DECSTBM(4, 6)
esccmd.CUP(Point(3, 5))
esccmd.DECBI()
AssertScreenCharsInRectEqual(Rect(2, 3, 6, 7),
[ "abcde",
"f" + blank() + "ghj",
"k" + blank() + "lmo",
"p" + blank() + "qrt",
"uvwxy" ])
def test_DECFI_Scrolls(self):
strings = [ "abcde",
"fghij",
"klmno",
"pqrst",
"uvwxy" ]
y = 3
for s in strings:
esccmd.CUP(Point(2, y))
escio.Write(s)
y += 1
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(3, 5)
esccmd.DECSTBM(4, 6)
esccmd.CUP(Point(5, 5))
esccmd.DECFI()
# It is out of character for xterm to use NUL in the middle of the line,
# but not terribly important, and not worth marking as a bug. I mentioned
# it to TED.
AssertScreenCharsInRectEqual(Rect(2, 3, 6, 7),
[ "abcde",
"fhi" + NUL + "j",
"kmn" + NUL + "o",
"prs" + NUL + "t",
"uvwxy" ])
def test_DECFI_RightOfMargin(self):
"""DEC STD 070 says DECFI can move when outside the margins."""
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(3, 5)
esccmd.CUP(Point(6, 1))
esccmd.DECFI()
AssertEQ(GetCursorPosition(), Point(7, 1))
def test_DECBI_LeftOfMargin(self):
"""Test DECBI (back-index) when the cursor is before the left-margin.
DEC STD 070 says DECBI can move when outside the margins."""
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(3, 5)
esccmd.CUP(Point(2, 1))
esccmd.DECBI()
AssertEQ(GetCursorPosition(), Point(1, 1))
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_DECFI_WholeScreenScrolls(self):
"""Starting with the cursor at the right edge of the page (outside the
margins), verify that DECFI is ignored."""
size = GetScreenSize()
esccmd.CUP(Point(size.width(), 1))
escio.Write("x")
esccmd.DECFI()
AssertScreenCharsInRectEqual(
Rect(size.width() - 1, 1, size.width(), 1), ["x" + empty()])
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_DECBI_WholeScreenScrolls(self):
"""The spec is confusing and contradictory. It first says "If the cursor is
at the left margin, then all screen data within the margin moves one column
to the right" and then says "DECBI is not affected by the margins." I don't
know what they could mean by the second part."""
escio.Write("x")
esccmd.CUP(Point(1, 1))
esccmd.DECBI()
AssertScreenCharsInRectEqual(Rect(1, 1, 2, 1), [ blank() + "x" ])
def characters(self, point, count):
if self._always_return_blank:
return esc.blank() * count
s = ""
data = self.data()
for i in xrange(count):
p = Point(point.x() + i, point.y())
if p.y() >= len(data):
s += esc.blank()
continue
line = data[p.y() - 1]
if p.x() >= len(line):
s += esc.blank()
continue
if point.y() % 2 == 1:
s += line[p.x() - 1]
else:
s += esc.blank()
return s
def test_DECFI_Scrolls(self):
strings = ["abcde", "fghij", "klmno", "pqrst", "uvwxy"]
y = 3
for s in strings:
esccmd.CUP(Point(2, y))
escio.Write(s)
y += 1
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(3, 5)
esccmd.DECSTBM(4, 6)
esccmd.CUP(Point(5, 5))
esccmd.DECFI()
AssertScreenCharsInRectEqual(Rect(2, 3, 6, 7), [
"abcde", "fhi" + empty() + "j", "kmn" + empty() + "o",
"prs" + empty() + "t", "uvwxy"
])
def test_DECFI_WholeScreenScrolls(self):
"""The spec is confusing and contradictory. It first says "If the cursor is
at the right margin, then all screen data within the margin moves one column
to the left" and then says "DECFI is not affected by the margins." I don't
know what they could mean by the second part."""
size = GetScreenSize()
esccmd.CUP(Point(size.width(), 1))
escio.Write("x")
esccmd.DECFI()
AssertScreenCharsInRectEqual(Rect(size.width() - 1, 1, size.width(), 1), [ "x" + NUL ])
def test_DECBI_WholeScreenScrolls(self):
"""Test DECBI (back-index) when the cursor is before the left-margin, but
at the left edge of the screen.
Refer to DEC STD 070, which says if the cursor is outside the margins,
at the left edge of the page (which xterm equates with its screen),
the command is ignored."""
escio.Write("x")
esccmd.CUP(Point(1, 1))
esccmd.DECBI()
AssertScreenCharsInRectEqual(Rect(1, 1, 2, 1), [blank() + "x"])
def characters(self, point, count):
if self._always_return_blank:
return esc.blank() * count
s = ""
data = self.data()
for i in xrange(count):
p = Point(point.x() + i, point.y())
if p.y() >= len(data):
s += esc.blank()
continue
line = data[p.y() - 1]
if p.x() >= len(line):
s += esc.blank()
continue
if point.y() % 2 == 1:
s += line[p.x() - 1]
else:
s += esc.blank()
return s
def test_DECFI_Basic(self): esccmd.CUP(Point(5, 6)) esccmd.DECFI() AssertEQ(GetCursorPosition(), Point(6, 6))
def test_DECFI_RightOfMargin(self): esccmd.DECSET(esccmd.DECLRMM) esccmd.DECSLRM(3, 5) esccmd.CUP(Point(6, 1)) esccmd.DECFI() AssertEQ(GetCursorPosition(), Point(7, 1))
def test_DECBI_NoWrapOnLeftEdge(self): esccmd.CUP(Point(1, 2)) esccmd.DECBI() AssertEQ(GetCursorPosition(), Point(1, 2))
def test_DECFI_NoWrapOnRightEdge(self): size = GetScreenSize() esccmd.CUP(Point(size.width(), 2)) esccmd.DECFI() AssertEQ(GetCursorPosition(), Point(size.width(), 2))
def test_DECBI_LeftOfMargin(self): esccmd.DECSET(esccmd.DECLRMM) esccmd.DECSLRM(3, 5) esccmd.CUP(Point(2, 1)) esccmd.DECBI() AssertEQ(GetCursorPosition(), Point(1, 1))
def test_DECALN_MovesCursorHome(self):
esccmd.CUP(Point(5, 5))
esccmd.DECALN()
AssertEQ(GetCursorPosition(), Point(1, 1))