658 lines
20 KiB
Python
658 lines
20 KiB
Python
# -*- test-case-name: twisted.conch.test.test_helper -*-
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# Copyright (c) Twisted Matrix Laboratories.
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# See LICENSE for details.
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from twisted.conch.insults import helper
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from twisted.conch.insults.insults import G0, G1, G2, G3
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from twisted.conch.insults.insults import modes, privateModes
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from twisted.conch.insults.insults import (
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NORMAL, BOLD, UNDERLINE, BLINK, REVERSE_VIDEO)
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from twisted.python.compat import _PY3
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from twisted.trial import unittest
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WIDTH = 80
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HEIGHT = 24
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class BufferTests(unittest.TestCase):
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def setUp(self):
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self.term = helper.TerminalBuffer()
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self.term.connectionMade()
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def testInitialState(self):
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self.assertEqual(self.term.width, WIDTH)
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self.assertEqual(self.term.height, HEIGHT)
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self.assertEqual(self.term.__bytes__(),
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b'\n' * (HEIGHT - 1))
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self.assertEqual(self.term.reportCursorPosition(), (0, 0))
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def test_initialPrivateModes(self):
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"""
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Verify that only DEC Auto Wrap Mode (DECAWM) and DEC Text Cursor Enable
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Mode (DECTCEM) are initially in the Set Mode (SM) state.
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"""
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self.assertEqual(
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{privateModes.AUTO_WRAP: True,
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privateModes.CURSOR_MODE: True},
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self.term.privateModes)
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def test_carriageReturn(self):
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"""
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C{"\r"} moves the cursor to the first column in the current row.
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"""
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self.term.cursorForward(5)
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self.term.cursorDown(3)
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self.assertEqual(self.term.reportCursorPosition(), (5, 3))
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self.term.insertAtCursor(b"\r")
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self.assertEqual(self.term.reportCursorPosition(), (0, 3))
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def test_linefeed(self):
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"""
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C{"\n"} moves the cursor to the next row without changing the column.
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"""
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self.term.cursorForward(5)
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self.assertEqual(self.term.reportCursorPosition(), (5, 0))
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self.term.insertAtCursor(b"\n")
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self.assertEqual(self.term.reportCursorPosition(), (5, 1))
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def test_newline(self):
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"""
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C{write} transforms C{"\n"} into C{"\r\n"}.
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"""
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self.term.cursorForward(5)
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self.term.cursorDown(3)
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self.assertEqual(self.term.reportCursorPosition(), (5, 3))
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self.term.write(b"\n")
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self.assertEqual(self.term.reportCursorPosition(), (0, 4))
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def test_setPrivateModes(self):
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"""
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Verify that L{helper.TerminalBuffer.setPrivateModes} changes the Set
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Mode (SM) state to "set" for the private modes it is passed.
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"""
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expected = self.term.privateModes.copy()
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self.term.setPrivateModes([privateModes.SCROLL, privateModes.SCREEN])
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expected[privateModes.SCROLL] = True
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expected[privateModes.SCREEN] = True
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self.assertEqual(expected, self.term.privateModes)
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def test_resetPrivateModes(self):
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"""
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Verify that L{helper.TerminalBuffer.resetPrivateModes} changes the Set
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Mode (SM) state to "reset" for the private modes it is passed.
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"""
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expected = self.term.privateModes.copy()
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self.term.resetPrivateModes([privateModes.AUTO_WRAP, privateModes.CURSOR_MODE])
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del expected[privateModes.AUTO_WRAP]
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del expected[privateModes.CURSOR_MODE]
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self.assertEqual(expected, self.term.privateModes)
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def testCursorDown(self):
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self.term.cursorDown(3)
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self.assertEqual(self.term.reportCursorPosition(), (0, 3))
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self.term.cursorDown()
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self.assertEqual(self.term.reportCursorPosition(), (0, 4))
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self.term.cursorDown(HEIGHT)
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self.assertEqual(self.term.reportCursorPosition(), (0, HEIGHT - 1))
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def testCursorUp(self):
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self.term.cursorUp(5)
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self.assertEqual(self.term.reportCursorPosition(), (0, 0))
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self.term.cursorDown(20)
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self.term.cursorUp(1)
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self.assertEqual(self.term.reportCursorPosition(), (0, 19))
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self.term.cursorUp(19)
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self.assertEqual(self.term.reportCursorPosition(), (0, 0))
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def testCursorForward(self):
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self.term.cursorForward(2)
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self.assertEqual(self.term.reportCursorPosition(), (2, 0))
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self.term.cursorForward(2)
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self.assertEqual(self.term.reportCursorPosition(), (4, 0))
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self.term.cursorForward(WIDTH)
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self.assertEqual(self.term.reportCursorPosition(), (WIDTH, 0))
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def testCursorBackward(self):
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self.term.cursorForward(10)
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self.term.cursorBackward(2)
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self.assertEqual(self.term.reportCursorPosition(), (8, 0))
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self.term.cursorBackward(7)
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self.assertEqual(self.term.reportCursorPosition(), (1, 0))
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self.term.cursorBackward(1)
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self.assertEqual(self.term.reportCursorPosition(), (0, 0))
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self.term.cursorBackward(1)
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self.assertEqual(self.term.reportCursorPosition(), (0, 0))
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def testCursorPositioning(self):
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self.term.cursorPosition(3, 9)
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self.assertEqual(self.term.reportCursorPosition(), (3, 9))
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def testSimpleWriting(self):
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s = b"Hello, world."
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self.term.write(s)
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self.assertEqual(
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self.term.__bytes__(),
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s + b'\n' +
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b'\n' * (HEIGHT - 2))
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def testOvertype(self):
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s = b"hello, world."
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self.term.write(s)
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self.term.cursorBackward(len(s))
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self.term.resetModes([modes.IRM])
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self.term.write(b"H")
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self.assertEqual(
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self.term.__bytes__(),
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(b"H" + s[1:]) + b'\n' +
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b'\n' * (HEIGHT - 2))
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def testInsert(self):
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s = b"ello, world."
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self.term.write(s)
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self.term.cursorBackward(len(s))
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self.term.setModes([modes.IRM])
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self.term.write(b"H")
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self.assertEqual(
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self.term.__bytes__(),
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(b"H" + s) + b'\n' +
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b'\n' * (HEIGHT - 2))
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def testWritingInTheMiddle(self):
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s = b"Hello, world."
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self.term.cursorDown(5)
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self.term.cursorForward(5)
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self.term.write(s)
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self.assertEqual(
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self.term.__bytes__(),
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b'\n' * 5 +
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(self.term.fill * 5) + s + b'\n' +
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b'\n' * (HEIGHT - 7))
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def testWritingWrappedAtEndOfLine(self):
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s = b"Hello, world."
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self.term.cursorForward(WIDTH - 5)
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self.term.write(s)
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self.assertEqual(
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self.term.__bytes__(),
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s[:5].rjust(WIDTH) + b'\n' +
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s[5:] + b'\n' +
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b'\n' * (HEIGHT - 3))
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def testIndex(self):
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self.term.index()
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self.assertEqual(self.term.reportCursorPosition(), (0, 1))
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self.term.cursorDown(HEIGHT)
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self.assertEqual(self.term.reportCursorPosition(), (0, HEIGHT - 1))
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self.term.index()
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self.assertEqual(self.term.reportCursorPosition(), (0, HEIGHT - 1))
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def testReverseIndex(self):
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self.term.reverseIndex()
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self.assertEqual(self.term.reportCursorPosition(), (0, 0))
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self.term.cursorDown(2)
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self.assertEqual(self.term.reportCursorPosition(), (0, 2))
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self.term.reverseIndex()
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self.assertEqual(self.term.reportCursorPosition(), (0, 1))
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def test_nextLine(self):
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"""
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C{nextLine} positions the cursor at the beginning of the row below the
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current row.
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"""
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self.term.nextLine()
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self.assertEqual(self.term.reportCursorPosition(), (0, 1))
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self.term.cursorForward(5)
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self.assertEqual(self.term.reportCursorPosition(), (5, 1))
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self.term.nextLine()
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self.assertEqual(self.term.reportCursorPosition(), (0, 2))
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def testSaveCursor(self):
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self.term.cursorDown(5)
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self.term.cursorForward(7)
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self.assertEqual(self.term.reportCursorPosition(), (7, 5))
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self.term.saveCursor()
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self.term.cursorDown(7)
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self.term.cursorBackward(3)
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self.assertEqual(self.term.reportCursorPosition(), (4, 12))
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self.term.restoreCursor()
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self.assertEqual(self.term.reportCursorPosition(), (7, 5))
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def testSingleShifts(self):
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self.term.singleShift2()
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self.term.write(b'Hi')
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ch = self.term.getCharacter(0, 0)
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self.assertEqual(ch[0], b'H')
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self.assertEqual(ch[1].charset, G2)
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ch = self.term.getCharacter(1, 0)
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self.assertEqual(ch[0], b'i')
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self.assertEqual(ch[1].charset, G0)
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self.term.singleShift3()
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self.term.write(b'!!')
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ch = self.term.getCharacter(2, 0)
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self.assertEqual(ch[0], b'!')
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self.assertEqual(ch[1].charset, G3)
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ch = self.term.getCharacter(3, 0)
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self.assertEqual(ch[0], b'!')
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self.assertEqual(ch[1].charset, G0)
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def testShifting(self):
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s1 = b"Hello"
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s2 = b"World"
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s3 = b"Bye!"
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self.term.write(b"Hello\n")
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self.term.shiftOut()
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self.term.write(b"World\n")
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self.term.shiftIn()
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self.term.write(b"Bye!\n")
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g = G0
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h = 0
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for s in (s1, s2, s3):
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for i in range(len(s)):
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ch = self.term.getCharacter(i, h)
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self.assertEqual(ch[0], s[i:i+1])
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self.assertEqual(ch[1].charset, g)
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g = g == G0 and G1 or G0
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h += 1
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def testGraphicRendition(self):
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self.term.selectGraphicRendition(BOLD, UNDERLINE, BLINK, REVERSE_VIDEO)
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self.term.write(b'W')
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self.term.selectGraphicRendition(NORMAL)
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self.term.write(b'X')
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self.term.selectGraphicRendition(BLINK)
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self.term.write(b'Y')
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self.term.selectGraphicRendition(BOLD)
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self.term.write(b'Z')
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ch = self.term.getCharacter(0, 0)
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self.assertEqual(ch[0], b'W')
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self.assertTrue(ch[1].bold)
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self.assertTrue(ch[1].underline)
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self.assertTrue(ch[1].blink)
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self.assertTrue(ch[1].reverseVideo)
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ch = self.term.getCharacter(1, 0)
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self.assertEqual(ch[0], b'X')
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self.assertFalse(ch[1].bold)
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self.assertFalse(ch[1].underline)
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self.assertFalse(ch[1].blink)
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self.assertFalse(ch[1].reverseVideo)
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ch = self.term.getCharacter(2, 0)
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self.assertEqual(ch[0], b'Y')
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self.assertTrue(ch[1].blink)
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self.assertFalse(ch[1].bold)
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self.assertFalse(ch[1].underline)
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self.assertFalse(ch[1].reverseVideo)
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ch = self.term.getCharacter(3, 0)
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self.assertEqual(ch[0], b'Z')
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self.assertTrue(ch[1].blink)
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self.assertTrue(ch[1].bold)
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self.assertFalse(ch[1].underline)
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self.assertFalse(ch[1].reverseVideo)
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def testColorAttributes(self):
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s1 = b"Merry xmas"
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s2 = b"Just kidding"
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self.term.selectGraphicRendition(helper.FOREGROUND + helper.RED,
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helper.BACKGROUND + helper.GREEN)
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self.term.write(s1 + b"\n")
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self.term.selectGraphicRendition(NORMAL)
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self.term.write(s2 + b"\n")
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for i in range(len(s1)):
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ch = self.term.getCharacter(i, 0)
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self.assertEqual(ch[0], s1[i:i+1])
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self.assertEqual(ch[1].charset, G0)
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self.assertFalse(ch[1].bold)
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self.assertFalse(ch[1].underline)
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self.assertFalse(ch[1].blink)
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self.assertFalse(ch[1].reverseVideo)
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self.assertEqual(ch[1].foreground, helper.RED)
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self.assertEqual(ch[1].background, helper.GREEN)
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for i in range(len(s2)):
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ch = self.term.getCharacter(i, 1)
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self.assertEqual(ch[0], s2[i:i+1])
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self.assertEqual(ch[1].charset, G0)
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self.assertFalse(ch[1].bold)
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self.assertFalse(ch[1].underline)
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self.assertFalse(ch[1].blink)
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self.assertFalse(ch[1].reverseVideo)
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self.assertEqual(ch[1].foreground, helper.WHITE)
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self.assertEqual(ch[1].background, helper.BLACK)
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def testEraseLine(self):
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s1 = b'line 1'
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s2 = b'line 2'
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s3 = b'line 3'
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self.term.write(b'\n'.join((s1, s2, s3)) + b'\n')
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self.term.cursorPosition(1, 1)
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self.term.eraseLine()
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self.assertEqual(
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self.term.__bytes__(),
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s1 + b'\n' +
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b'\n' +
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s3 + b'\n' +
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b'\n' * (HEIGHT - 4))
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def testEraseToLineEnd(self):
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s = b'Hello, world.'
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self.term.write(s)
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self.term.cursorBackward(5)
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self.term.eraseToLineEnd()
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self.assertEqual(
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self.term.__bytes__(),
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s[:-5] + b'\n' +
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b'\n' * (HEIGHT - 2))
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def testEraseToLineBeginning(self):
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s = b'Hello, world.'
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self.term.write(s)
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self.term.cursorBackward(5)
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self.term.eraseToLineBeginning()
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self.assertEqual(
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self.term.__bytes__(),
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s[-4:].rjust(len(s)) + b'\n' +
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b'\n' * (HEIGHT - 2))
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def testEraseDisplay(self):
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self.term.write(b'Hello world\n')
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self.term.write(b'Goodbye world\n')
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self.term.eraseDisplay()
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self.assertEqual(
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self.term.__bytes__(),
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b'\n' * (HEIGHT - 1))
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def testEraseToDisplayEnd(self):
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s1 = b"Hello world"
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s2 = b"Goodbye world"
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self.term.write(b'\n'.join((s1, s2, b'')))
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self.term.cursorPosition(5, 1)
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self.term.eraseToDisplayEnd()
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self.assertEqual(
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self.term.__bytes__(),
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s1 + b'\n' +
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s2[:5] + b'\n' +
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b'\n' * (HEIGHT - 3))
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def testEraseToDisplayBeginning(self):
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s1 = b"Hello world"
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s2 = b"Goodbye world"
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self.term.write(b'\n'.join((s1, s2)))
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self.term.cursorPosition(5, 1)
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self.term.eraseToDisplayBeginning()
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self.assertEqual(
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self.term.__bytes__(),
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b'\n' +
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s2[6:].rjust(len(s2)) + b'\n' +
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b'\n' * (HEIGHT - 3))
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def testLineInsertion(self):
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s1 = b"Hello world"
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s2 = b"Goodbye world"
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self.term.write(b'\n'.join((s1, s2)))
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self.term.cursorPosition(7, 1)
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self.term.insertLine()
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self.assertEqual(
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self.term.__bytes__(),
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s1 + b'\n' +
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b'\n' +
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s2 + b'\n' +
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b'\n' * (HEIGHT - 4))
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def testLineDeletion(self):
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s1 = b"Hello world"
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s2 = b"Middle words"
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s3 = b"Goodbye world"
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self.term.write(b'\n'.join((s1, s2, s3)))
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self.term.cursorPosition(9, 1)
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self.term.deleteLine()
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self.assertEqual(
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self.term.__bytes__(),
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s1 + b'\n' +
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s3 + b'\n' +
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b'\n' * (HEIGHT - 3))
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class FakeDelayedCall:
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called = False
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cancelled = False
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def __init__(self, fs, timeout, f, a, kw):
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self.fs = fs
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self.timeout = timeout
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self.f = f
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self.a = a
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self.kw = kw
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def active(self):
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return not (self.cancelled or self.called)
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def cancel(self):
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self.cancelled = True
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# self.fs.calls.remove(self)
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def call(self):
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self.called = True
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self.f(*self.a, **self.kw)
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class FakeScheduler:
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def __init__(self):
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self.calls = []
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def callLater(self, timeout, f, *a, **kw):
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self.calls.append(FakeDelayedCall(self, timeout, f, a, kw))
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return self.calls[-1]
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class ExpectTests(unittest.TestCase):
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def setUp(self):
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self.term = helper.ExpectableBuffer()
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self.term.connectionMade()
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self.fs = FakeScheduler()
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def testSimpleString(self):
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result = []
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d = self.term.expect(b"hello world", timeout=1, scheduler=self.fs)
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d.addCallback(result.append)
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self.term.write(b"greeting puny earthlings\n")
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self.assertFalse(result)
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self.term.write(b"hello world\n")
|
|
self.assertTrue(result)
|
|
self.assertEqual(result[0].group(), b"hello world")
|
|
self.assertEqual(len(self.fs.calls), 1)
|
|
self.assertFalse(self.fs.calls[0].active())
|
|
|
|
|
|
def testBrokenUpString(self):
|
|
result = []
|
|
d = self.term.expect(b"hello world")
|
|
d.addCallback(result.append)
|
|
|
|
self.assertFalse(result)
|
|
self.term.write(b"hello ")
|
|
self.assertFalse(result)
|
|
self.term.write(b"worl")
|
|
self.assertFalse(result)
|
|
self.term.write(b"d")
|
|
self.assertTrue(result)
|
|
self.assertEqual(result[0].group(), b"hello world")
|
|
|
|
|
|
def testMultiple(self):
|
|
result = []
|
|
d1 = self.term.expect(b"hello ")
|
|
d1.addCallback(result.append)
|
|
d2 = self.term.expect(b"world")
|
|
d2.addCallback(result.append)
|
|
|
|
self.assertFalse(result)
|
|
self.term.write(b"hello")
|
|
self.assertFalse(result)
|
|
self.term.write(b" ")
|
|
self.assertEqual(len(result), 1)
|
|
self.term.write(b"world")
|
|
self.assertEqual(len(result), 2)
|
|
self.assertEqual(result[0].group(), b"hello ")
|
|
self.assertEqual(result[1].group(), b"world")
|
|
|
|
|
|
def testSynchronous(self):
|
|
self.term.write(b"hello world")
|
|
|
|
result = []
|
|
d = self.term.expect(b"hello world")
|
|
d.addCallback(result.append)
|
|
self.assertTrue(result)
|
|
self.assertEqual(result[0].group(), b"hello world")
|
|
|
|
|
|
def testMultipleSynchronous(self):
|
|
self.term.write(b"goodbye world")
|
|
|
|
result = []
|
|
d1 = self.term.expect(b"bye")
|
|
d1.addCallback(result.append)
|
|
d2 = self.term.expect(b"world")
|
|
d2.addCallback(result.append)
|
|
|
|
self.assertEqual(len(result), 2)
|
|
self.assertEqual(result[0].group(), b"bye")
|
|
self.assertEqual(result[1].group(), b"world")
|
|
|
|
|
|
def _cbTestTimeoutFailure(self, res):
|
|
self.assertTrue(hasattr(res, 'type'))
|
|
self.assertEqual(res.type, helper.ExpectationTimeout)
|
|
|
|
|
|
def testTimeoutFailure(self):
|
|
d = self.term.expect(b"hello world", timeout=1, scheduler=self.fs)
|
|
d.addBoth(self._cbTestTimeoutFailure)
|
|
self.fs.calls[0].call()
|
|
|
|
|
|
def testOverlappingTimeout(self):
|
|
self.term.write(b"not zoomtastic")
|
|
|
|
result = []
|
|
d1 = self.term.expect(b"hello world", timeout=1, scheduler=self.fs)
|
|
d1.addBoth(self._cbTestTimeoutFailure)
|
|
d2 = self.term.expect(b"zoom")
|
|
d2.addCallback(result.append)
|
|
|
|
self.fs.calls[0].call()
|
|
|
|
self.assertEqual(len(result), 1)
|
|
self.assertEqual(result[0].group(), b"zoom")
|
|
|
|
|
|
|
|
class CharacterAttributeTests(unittest.TestCase):
|
|
"""
|
|
Tests for L{twisted.conch.insults.helper.CharacterAttribute}.
|
|
"""
|
|
def test_equality(self):
|
|
"""
|
|
L{CharacterAttribute}s must have matching character attribute values
|
|
(bold, blink, underline, etc) with the same values to be considered
|
|
equal.
|
|
"""
|
|
self.assertEqual(
|
|
helper.CharacterAttribute(),
|
|
helper.CharacterAttribute())
|
|
|
|
self.assertEqual(
|
|
helper.CharacterAttribute(),
|
|
helper.CharacterAttribute(charset=G0))
|
|
|
|
self.assertEqual(
|
|
helper.CharacterAttribute(
|
|
bold=True, underline=True, blink=False, reverseVideo=True,
|
|
foreground=helper.BLUE),
|
|
helper.CharacterAttribute(
|
|
bold=True, underline=True, blink=False, reverseVideo=True,
|
|
foreground=helper.BLUE))
|
|
|
|
self.assertNotEqual(
|
|
helper.CharacterAttribute(),
|
|
helper.CharacterAttribute(charset=G1))
|
|
|
|
self.assertNotEqual(
|
|
helper.CharacterAttribute(bold=True),
|
|
helper.CharacterAttribute(bold=False))
|
|
|
|
|
|
def test_wantOneDeprecated(self):
|
|
"""
|
|
L{twisted.conch.insults.helper.CharacterAttribute.wantOne} emits
|
|
a deprecation warning when invoked.
|
|
"""
|
|
# Trigger the deprecation warning.
|
|
helper._FormattingState().wantOne(bold=True)
|
|
|
|
warningsShown = self.flushWarnings([self.test_wantOneDeprecated])
|
|
self.assertEqual(len(warningsShown), 1)
|
|
self.assertEqual(warningsShown[0]['category'], DeprecationWarning)
|
|
if _PY3:
|
|
deprecatedClass = (
|
|
"twisted.conch.insults.helper._FormattingState.wantOne")
|
|
else:
|
|
deprecatedClass = "twisted.conch.insults.helper.wantOne"
|
|
self.assertEqual(
|
|
warningsShown[0]['message'],
|
|
'%s was deprecated in Twisted 13.1.0' % (deprecatedClass))
|