def test_RIS_RemoveMargins(self):
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(3, 5)
esccmd.DECSTBM(4, 6)
esccmd.RIS()
esccmd.CUP(Point(3, 4))
esccmd.CUB()
AssertEQ(GetCursorPosition(), Point(2, 4))
esccmd.CUU()
AssertEQ(GetCursorPosition(), Point(2, 3))
esccmd.CUP(Point(5, 6))
esccmd.CUF()
AssertEQ(GetCursorPosition(), Point(6, 6))
esccmd.CUD()
AssertEQ(GetCursorPosition(), Point(6, 7))
def test_SaveRestoreCursor_AltVsMain(self):
"""Separate saved cursor in alt screen vs main screen."""
esccmd.CUP(Point(2, 3))
self.saveCursor()
esccmd.DECSET(esccmd.ALTBUF)
esccmd.CUP(Point(6, 7))
self.saveCursor()
esccmd.DECRESET(esccmd.ALTBUF)
self.restoreCursor()
AssertEQ(GetCursorPosition(), Point(2, 3))
esccmd.DECSET(esccmd.ALTBUF)
self.restoreCursor()
AssertEQ(GetCursorPosition(), Point(6, 7))
def test_DECSET_ResetReverseWraparoundDisablesIt(self): """DECRESET of reverse wraparound prevents it from happening.""" # Note that iTerm disregards the value of ReverseWraparound when there's a # soft EOL on the preceding line and always wraps. esccmd.DECRESET(esccmd.ReverseWraparound) esccmd.DECSET(esccmd.DECAWM) esccmd.CUP(Point(1, 2)) escio.Write(BS) AssertEQ(GetCursorPosition().x(), 1)
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 prepare(self):
"""Sets up the display as:
a
bcd
e
With the cursor on the 'c'.
"""
esccmd.CUP(Point(1, 1))
escio.Write("a")
esccmd.CUP(Point(1, 3))
escio.Write("bcd")
esccmd.CUP(Point(1, 5))
escio.Write("e")
esccmd.CUP(Point(2, 3))
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 test_IL_ScrollsOffBottom(self):
"""Lines should be scrolled off the bottom of the screen."""
height = GetScreenSize().height()
for i in xrange(height):
esccmd.CUP(Point(1, i + 1))
escio.Write("%04d" % (i + 1))
esccmd.CUP(Point(1, 2))
esccmd.IL()
expected = 1
for i in xrange(height):
y = i + 1
if y == 2:
AssertScreenCharsInRectEqual(Rect(1, y, 4, y), [empty() * 4])
else:
AssertScreenCharsInRectEqual(Rect(1, y, 4, y),
["%04d" % expected])
expected += 1
def test_DECSEL_IgnoresScrollRegion(self):
"""Should erase whole line."""
self.prepare()
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(2, 4)
esccmd.CUP(Point(5, 1))
esccmd.DECSEL(2)
esccmd.DECRESET(esccmd.DECLRMM)
AssertScreenCharsInRectEqual(Rect(1, 1, 10, 1), [10 * NUL])
def test_DECSTBM_TopOfZeroIsTopOfScreen(self):
"""A zero value for the top arg gives the top of the screen."""
esccmd.DECSTBM(0, 3)
esccmd.CUP(Point(1, 2))
escio.Write("1" + CR + LF)
escio.Write("2" + CR + LF)
escio.Write("3" + CR + LF)
escio.Write("4")
AssertScreenCharsInRectEqual(Rect(1, 1, 1, 3), ["2", "3", "4"])
def test_BS_CursorStartsInDoWrapPosition(self):
"""Cursor is right of right edge of screen."""
size = GetScreenSize()
esccmd.CUP(Point(size.width() - 1, 1))
escio.Write("ab")
escio.Write(esc.BS)
escio.Write("X")
AssertScreenCharsInRectEqual(
Rect(size.width() - 1, 1, size.width(), 1), ["Xb"])
def test_DECSET_ReverseWraparound_BS(self): """xerm supports DECSET 45 to toggle 'reverse wraparound'. Both DECAWM and 45 must be set.""" # iTerm2 turns reverse wraparound on by default, while xterm does not. esccmd.DECSET(esccmd.ReverseWraparound) esccmd.DECSET(esccmd.DECAWM) esccmd.CUP(Point(1, 2)) escio.Write(BS) AssertEQ(GetCursorPosition().x(), GetScreenSize().width())
def test_DECSET_ResetReverseWraparoundDisablesIt(self):
"""DECRESET of reverse wraparound prevents it from happening."""
# iTerm2 turns reverse wraparound on by default, while xterm does not.
esccmd.DECRESET(esccmd.ReverseWraparound)
esccmd.DECSET(esccmd.DECAWM)
esccmd.CUP(Point(GetScreenSize().width() - 1, 1))
escio.Write("abc")
escio.Write(BS * 5)
AssertEQ(GetCursorPosition().x(), 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_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_DECIC_IsNoOpWhenCursorBeginsOutsideScrollRegion(self):
"""Ensure DECIC 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.DECIC(10)
# Ensure nothing happened.
esccmd.DECRESET(esccmd.DECLRMM)
AssertScreenCharsInRectEqual(Rect(1, 1, 7, 2), ["abcdefg", "ABCDEFG"])
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 prepare(self):
esccmd.CUP(Point(1, 1))
escio.Write("abcdefgh" + CR + LF)
escio.Write("ijklmnop" + CR + LF)
escio.Write("qrstuvwx" + CR + LF)
escio.Write("yz012345" + CR + LF)
escio.Write("ABCDEFGH" + CR + LF)
escio.Write("IJKLMNOP" + CR + LF)
escio.Write("QRSTUVWX" + CR + LF)
escio.Write("YZ6789!@" + CR + LF)
def test_DECSTBM_MaxSizeOfRegionIsPageSize(self):
"""The maximum size of the scrolling region is the page size."""
# Write "x" at line 2
esccmd.CUP(Point(1, 2))
escio.Write("x")
# Set the scroll bottom to below the screen.
size = GetScreenSize()
esccmd.DECSTBM(1, GetScreenSize().height() + 10)
# Move the cursor to the last line and write a newline.
esccmd.CUP(Point(1, size.height()))
escio.Write(CR + LF)
# Verify that line 2 scrolled up to line 1.
AssertScreenCharsInRectEqual(Rect(1, 1, 1, 2), ["x", NUL])
# Verify the cursor is at the last line on the page.
AssertEQ(GetCursorPosition().y(), size.height())
def test_DECSTBM_ScrollsOnNewline(self):
"""Define a top-bottom margin, put text in it, and have newline scroll it."""
esccmd.DECSTBM(2, 3)
esccmd.CUP(Point(1, 2))
escio.Write("1" + CR + LF)
escio.Write("2")
AssertScreenCharsInRectEqual(Rect(1, 2, 1, 3), ["1", "2"])
escio.Write(CR + LF)
AssertScreenCharsInRectEqual(Rect(1, 2, 1, 3), ["2", NUL])
AssertEQ(GetCursorPosition().y(), 3)
def test_REP_RespectsTopBottomMargins(self):
width = GetScreenSize().width()
esccmd.DECSTBM(2, 4)
esccmd.CUP(Point(width - 2, 4))
escio.Write("a")
esccmd.REP(3)
AssertScreenCharsInRectEqual(Rect(1, 3, width, 4),
[empty() * (width - 3) + "aaa",
"a" + empty() * (width - 1)])
def test_HTS_8bit(self):
# Remove tabs
esccmd.TBC(3)
# Set a tabstop at 20
esccmd.CUP(Point(20, 1))
# Do 8 bit hts
escio.use8BitControls = True
escio.Write(S8C1T)
esccmd.HTS()
escio.Write(S7C1T)
escio.use8BitControls = False
# Move to 1 and then tab to 20
esccmd.CUP(Point(1, 1))
escio.Write(TAB)
AssertEQ(GetCursorPosition().x(), 20)
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_CHA_IgnoresScrollRegion(self): """CHA ignores scroll regions.""" # Set a scroll region. esccmd.DECSET(esccmd.DECLRMM) esccmd.DECSLRM(5, 10) esccmd.CUP(Point(5, 3)) esccmd.CHA(1) position = GetCursorPosition() AssertEQ(position.x(), 1) AssertEQ(position.y(), 3)
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_DECSTBM_BottomOfZeroIsBottomOfScreen(self):
"""A zero value for the bottom arg gives the bottom of the screen."""
# Write "x" at line 3
esccmd.CUP(Point(1, 3))
escio.Write("x")
# Set the scroll bottom to below the screen.
size = GetScreenSize()
esccmd.DECSTBM(2, 0)
# Move the cursor to the last line and write a newline.
esccmd.CUP(Point(1, size.height()))
escio.Write(CR + LF)
# Verify that line 3 scrolled up to line 2.
AssertScreenCharsInRectEqual(Rect(1, 2, 1, 3), ["x", empty()])
# Verify the cursor is at the last line on the page.
AssertEQ(GetCursorPosition().y(), size.height())
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_DECSET_DECAWM_OnRespectsLeftRightMargin(self):
"""Auto-wrap mode on respects left-right margins."""
esccmd.DECSET(esccmd.DECLRMM)
esccmd.DECSLRM(5, 9)
esccmd.DECSTBM(5, 9)
esccmd.CUP(Point(8, 9))
esccmd.DECSET(esccmd.DECAWM)
escio.Write("abcdef")
AssertScreenCharsInRectEqual(Rect(5, 8, 9, 9), [empty() * 3 + "ab", "cdef" + empty()])
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" ]);