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"""
PC-BASIC test.session
unit tests for pcbasic.base
(c) 2020--2023 Rob Hagemans
This file is released under the GNU GPL version 3 or later.
"""
import unittest
import os
from pcbasic.basic.base.error import BASICError
from pcbasic.basic.base.signals import Event, QUIT
from pcbasic.basic.base.bytestream import ByteStream
from pcbasic.basic.base.codestream import CodeStream, TokenisedStream
from pcbasic.basic.base.bytematrix import ByteMatrix, hstack, vstack
class BaseTest(unittest.TestCase):
"""Unit tests for small classes in base."""
def test_exception(self):
"""Test exceptions."""
assert repr(BASICError(100)) == 'Unprintable error'
def test_event_signal(self):
"""Test event signals."""
assert repr(Event(QUIT)) == '<Event quit: ()>'
class ByteStreamTest(unittest.TestCase):
"""Unit tests for bytestream."""
def test_bytestream_read(self):
"""Test ByteStream read."""
buf = bytearray(b'12345abcde')
bs = ByteStream(buf)
assert bs.read(1) == b'1'
assert bs.read() == b'2345abcde'
assert bs.read(1) == b''
def test_bytestream_write(self):
"""Test ByteStream write."""
buf = bytearray(b'12345abcde')
bs = ByteStream(buf)
bs.write(b'ABCDE')
# write as changed buffer
assert buf == bytearray(b'ABCDEabcde')
# can't write beyond buffer
with self.assertRaises(ValueError):
bs.write(b'123456')
# no change on write error
assert buf == bytearray(b'ABCDEabcde')
def test_bytestream_read_closed(self):
"""Test read attempt on closed stream."""
buf = bytearray(b'12345abcde')
bs = ByteStream(buf)
bs.close()
with self.assertRaises(ValueError):
bs.read()
def test_bytestream_read_bad(self):
"""Test read attempt with bad argument."""
buf = bytearray(b'12345abcde')
bs = ByteStream(buf)
with self.assertRaises(TypeError):
bs.read(b'1')
class CodeStreamTest(unittest.TestCase):
"""Unit tests for code stream."""
def test_backskip_blank(self):
"""Test backskip_blank."""
buf = bytearray(b'a \n\t b')
cs = CodeStream(buf)
cs.read(6)
assert cs.backskip_blank() == b'a'
def test_read_to(self):
"""Test read_to."""
buf = bytearray(b'a \n\t b')
cs = CodeStream(buf)
assert cs.read_to(b' ') == b'a'
assert cs.read_to(b'c') == b' \n\t b'
def test_read_name(self):
"""Test read_name."""
buf = bytearray(b'abc1\0hjk')
cs = CodeStream(buf)
assert cs.read_name() == b'ABC1'
buf = bytearray(b' abc1$jhjk')
cs = CodeStream(buf)
assert cs.read_name() == b'ABC1$'
buf = bytearray(b'1abc1$jhjk')
cs = CodeStream(buf)
assert cs.read_name() == b''
def test_read_number(self):
"""Test read_number."""
buf = bytearray(b'123ab')
cs = CodeStream(buf)
assert cs.read_number() == b'123'
buf = bytearray(b'')
cs = CodeStream(buf)
assert cs.read_number() == b''
buf = bytearray(b'a')
cs = CodeStream(buf)
assert cs.read_number() == b''
buf = bytearray(b'&ha')
cs = CodeStream(buf)
assert cs.read_number() == b'&Ha'
buf = bytearray(b'&7')
cs = CodeStream(buf)
assert cs.read_number() == b'&O7'
def test_read_string(self):
"""Test read_string."""
buf = bytearray(b'123ab')
cs = CodeStream(buf)
assert cs.read_string() == b''
buf = bytearray(b'"123ab"ghj')
cs = CodeStream(buf)
cs.end_line = (b'', b'\n')
assert cs.read_string() == b'"123ab"'
buf = bytearray(b'"123ab')
cs = CodeStream(buf)
cs.end_line = (b'', b'\n')
assert cs.read_string() == b'"123ab'
class TokenisedStreamTest(unittest.TestCase):
"""Unit tests for tokenised stream."""
def test_read_number_token(self):
"""Test read_number_token."""
cs = TokenisedStream()
cs.write(b'\x0b\x01\x00ghja')
cs.seek(0)
assert cs.read_number_token() == b'\x0b\x01\x00'
cs.seek(0)
cs.write(b'\x0c\x01\x00ghja')
cs.seek(0)
assert cs.read_number_token() == b'\x0c\x01\x00'
cs.seek(0)
cs.write(b'\x11\x01\x00ghja')
cs.seek(0)
assert cs.read_number_token() == b'\x11'
cs.seek(0)
cs.write(b'\x0f\xff\x00ghja')
cs.seek(0)
assert cs.read_number_token() == b'\x0f\xff'
cs.seek(0)
cs.write(b'\x1c\xff\x00ghja')
cs.seek(0)
assert cs.read_number_token() == b'\x1c\xff\x00'
cs.seek(0)
cs.write(b'\x1d\xff\x00ghja')
cs.seek(0)
assert cs.read_number_token() == b'\x1d\xff\x00gh'
cs.seek(0)
cs.write(b'\x1f\xff\x00ghjagh007')
cs.seek(0)
assert cs.read_number_token() == b'\x1f\xff\x00ghjagh'
cs.seek(0)
cs.write(b'\x00\xff\x00ghja')
cs.seek(0)
assert cs.read_number_token() == b''
def test_skip_to_token_not_found(self):
"""Test skip_to_token where token is not found."""
cs = TokenisedStream()
cs.write(b'\x0b\x01\x00ghja')
cs.seek(0)
assert cs.skip_to_token(b'\x91') is None
def test_skip_block_not_found(self):
"""Test skip_block where token is not found."""
cs = TokenisedStream()
cs.write(b'\x0b\x01\x00ghja')
cs.seek(0)
cs.skip_block(b'\x91', b'\x90')
assert cs.tell() == 7
class ByteMatrixTest(unittest.TestCase):
"""Unit tests for bytematrix."""
def test_empty(self):
"""Create empty matrix."""
bm = ByteMatrix()
assert bm.width == 0
assert bm.height == 0
assert bm.to_bytes() == b''
def test_int(self):
"""Create matrix with all elements equal."""
bm = ByteMatrix(2, 3, 1)
assert bm.width == 3
assert bm.height == 2
assert bm.to_bytes() == b'\x01' * 6
def test_list_of_list(self):
"""Create matrix from list of list."""
bm = ByteMatrix(2, 3, [[1, 2, 3], [4, 5, 6]])
assert bm.width == 3
assert bm.height == 2
assert bm.to_bytes() == bytes(bytearray(range(1, 7)))
def test_bytes(self):
"""Create matrix from bytes."""
bm = ByteMatrix(2, 3, b'123456')
assert bm.width == 3
assert bm.height == 2
assert bm.to_bytes() == b'123456'
def test_bytearray(self):
"""Create matrix from bytearray."""
bm = ByteMatrix(2, 3, bytearray(b'123456'))
assert bm.width == 3
assert bm.height == 2
assert bm.to_bytes() == b'123456'
def test_bytearray_wide(self):
"""Create 1-row matrix from bytearray."""
bm = ByteMatrix(1, 6, bytearray(b'123456'))
assert bm.width == 6
assert bm.height == 1
assert bm.to_bytes() == b'123456'
def test_bytearray_tall(self):
"""Create 1-column matrix from bytearray."""
bm = ByteMatrix(6, 1, bytearray(b'123456'))
assert bm.width == 1
assert bm.height == 6
assert bm.to_bytes() == b'123456'
def test_list_of_bytes(self):
"""Create matrix from list of bytes."""
bm = ByteMatrix(2, 3, [b'123', b'456'])
assert bm.width == 3
assert bm.height == 2
assert bm.to_bytes() == b'123456'
def test_repr(self):
"""Debugging repr."""
bm = ByteMatrix(2, 3, [b'123', b'456'])
assert isinstance(repr(bm), str)
def test_getitem(self):
"""Test int and slice indexing."""
bm = ByteMatrix(2, 3, [b'123', b'456'])
assert bm[0, 0] == ord(b'1')
assert isinstance(bm[0:1, 0], ByteMatrix)
assert bm[:, :] == bm
assert bm[0:1, 0:2] == ByteMatrix(1, 2, [b'12'])
assert bm[0, 0:2] == ByteMatrix(1, 2, [b'12'])
assert bm[0:2, 0] == ByteMatrix(2, 1, [b'1', b'4'])
assert bm[0:0, :] == ByteMatrix()
def test_setitem(self):
"""Test int and slice assignment."""
bm = ByteMatrix(2, 3, [b'123', b'456'])
bm[1, 2] = ord(b'Z')
assert bm.to_bytes() == b'12345Z'
bm[0:1, 0:2] = ByteMatrix(1, 2, [[1, 2]])
assert bm.to_bytes() == b'\x01\x02345Z'
bm[1, 0:2] = ByteMatrix(1, 2, [[4, 5]])
assert bm.to_bytes() == b'\x01\x023\x04\x05Z'
bm[0:2, 0] = ByteMatrix(2, 1, [[65], [66]])
assert bm.to_bytes() == b'A\x023B\x05Z'
def test_setitem_int(self):
"""Test slice assignment to same int."""
bm = ByteMatrix(2, 3, [b'123', b'456'])
bm[0:1, 0:2] = 0
assert bm.to_bytes() == b'\x00\x003456'
bm[1, 0:2] = 1
assert bm.to_bytes() == b'\x00\x003\x01\x016'
bm[0:2, 0] = 2
assert bm.to_bytes() == b'\x02\x003\x02\x016'
def test_setitem_bad(self):
"""Test slice assignment to bad type."""
bm = ByteMatrix(2, 3, [b'123', b'456'])
with self.assertRaises(TypeError):
bm[0:1, 0:2] = 1.5
with self.assertRaises(ValueError):
bm[0:1, 0:2] = -1
def test_eq(self):
"""Test equality."""
bm = ByteMatrix(2, 3, [b'123', b'456'])
assert bm == bm
assert bm == ByteMatrix(2, 3, [b'123', b'456'])
assert not(bm == ByteMatrix(2, 3, [b'123', b'457']))
def test_ne(self):
"""Test nonequality."""
bm = ByteMatrix(2, 3, [b'123', b'456'])
assert not (bm != bm)
assert not (bm != ByteMatrix(2, 3, [b'123', b'456']))
assert bm != ByteMatrix(2, 3, [b'123', b'457'])
def test_elementwise(self):
"""Test elementwise operations."""
bm = ByteMatrix(2, 3, 1)
rhs = ByteMatrix(2, 3, b'\x00\x01\x02\x03\x04\x05')
assert (bm | rhs).to_bytes() == b'\x01\x01\x03\x03\x05\x05'
assert (bm & rhs).to_bytes() == b'\x00\x01\x00\x01\x00\x01'
assert (bm ^ rhs).to_bytes() == b'\x01\x00\x03\x02\x05\x04'
assert (bm >> rhs).to_bytes() == b'\x01\0\0\0\0\0'
assert (bm << rhs).to_bytes() == b'\x01\x02\x04\x08\x10\x20'
def test_elementwise_int(self):
"""Test elementwise operations with scalar."""
bm = ByteMatrix(2, 3, b'\x00\x01\x02\x03\x04\x05')
assert (bm | 1).to_bytes() == b'\x01\x01\x03\x03\x05\x05'
assert (bm & 1).to_bytes() == b'\x00\x01\x00\x01\x00\x01'
assert (bm ^ 1).to_bytes() == b'\x01\x00\x03\x02\x05\x04'
assert (bm >> 1).to_bytes() == b'\x00\x00\x01\x01\x02\x02'
assert (bm << 1).to_bytes() == b'\x00\x02\x04\x06\x08\x0a'
# lsh out of bounds
assert (bm << 8).to_bytes() == b'\0\0\0\0\0\0'
def test_elementwise_inplace_int(self):
"""Test in-place elementwise operations with scalar."""
bm = ByteMatrix(2, 3, 0)
bm |= 1
assert bm.to_bytes() == b'\x01'*6
bm &= 255
assert bm.to_bytes() == b'\x01'*6
bm ^= 2
assert bm.to_bytes() == b'\x03'*6
bm >>= 1
assert bm.to_bytes() == b'\x01'*6
bm <<= 2
assert bm.to_bytes() == b'\x04'*6
def test_pack(self):
"""Test packed representation."""
assert ByteMatrix(2, 8, 0).packed(8) == b'\0\0'
assert ByteMatrix(1, 8, [[0, 1, 2, 4, 8, 16, 32, 64]]).packed(4) == bytearray(b'\x18\x00')
# zero fill-out
assert ByteMatrix(1, 7, 1).packed(8) == bytearray(b'\xfe')
def test_unpack(self):
"""Test unpacking packed representation."""
assert ByteMatrix.frompacked(b'\x18\x00', 1, 4) == ByteMatrix(1, 8, [[0, 1, 2, 0, 0, 0, 0, 0]])
assert ByteMatrix.frompacked(b'\xfe', 1, 8) == ByteMatrix(1, 8, [[1, 1, 1, 1, 1, 1, 1, 0]])
# empty
assert ByteMatrix.frompacked(b'', 0, 8) == ByteMatrix()
# insufficient length
assert ByteMatrix.frompacked(b'\0', 2, 8) == ByteMatrix()
def test_hex(self):
"""Test hex representation."""
assert ByteMatrix(2, 8, 0).hex(8) == b'0000'
assert ByteMatrix(1, 8, [[0, 1, 2, 4, 8, 16, 32, 64]]).hex(4) == b'1800'
# zero fill-out
assert ByteMatrix(1, 7, 1).hex(8) == b'fe'
def test_fromhex(self):
"""Test unpacking packed representation."""
assert ByteMatrix.fromhex(b'1800', 1, 4) == ByteMatrix(1, 8, [[0, 1, 2, 0, 0, 0, 0, 0]])
assert ByteMatrix.fromhex(b'fe', 1, 8) == ByteMatrix(1, 8, [[1, 1, 1, 1, 1, 1, 1, 0]])
# empty
assert ByteMatrix.fromhex(b'', 0, 8) == ByteMatrix()
def test_render(self):
"""Test rendering."""
bm = ByteMatrix(2, 3, 0)
bm[1, :] = 1
assert bm.render(10, 42) == ByteMatrix(2, 3, [[10, 10, 10], [42, 42, 42]])
def test_hextend(self):
"""Test horizontal extending."""
bm = ByteMatrix(2, 3, 0)
assert bm.hextend(2, 1) == ByteMatrix(2, 5, [[0, 0, 0, 1, 1], [0, 0, 0, 1, 1]])
def test_vextend(self):
"""Test vertical extending."""
bm = ByteMatrix(2, 3, 0)
assert bm.vextend(2, 1) == ByteMatrix(4, 3, [[0, 0, 0], [0, 0, 0], [1, 1, 1], [1, 1, 1]])
def test_hrepeat(self):
"""Test horizontal repeating."""
bm = ByteMatrix(2, 3, b'123456')
assert bm.hrepeat(2) == ByteMatrix(2, 6, b'112233445566')
def test_vrepeat(self):
"""Test vertical reapeating."""
bm = ByteMatrix(2, 3, b'123456')
assert bm.vrepeat(2) == ByteMatrix(4, 3, b'123123456456')
def test_htile(self):
"""Test horizontal tiling."""
bm = ByteMatrix(2, 3, b'123456')
assert bm.htile(2) == ByteMatrix(2, 6, b'123123456456')
def test_vtile(self):
"""Test vertical tiling."""
bm = ByteMatrix(2, 3, b'123456')
assert bm.vtile(2) == ByteMatrix(4, 3, b'123456123456')
def test_move(self):
"""Test moving submatrix."""
bm = ByteMatrix(2, 3, b'123456')
bm.move(1, 2, 0, 2, 0, 0)
assert bm == ByteMatrix(2, 3, b'453\x00\x006')
def test_to_bytes(self):
"""Test to_bytes."""
assert ByteMatrix(2, 3, b'123456').to_bytes() == b'123456'
def test_to_rows(self):
"""Test to_rows."""
assert ByteMatrix(2, 3, b'123456').to_rows() == ((0x31, 0x32, 0x33), (0x34, 0x35, 0x36))
def test_copy(self):
"""Test copying."""
bm = ByteMatrix(2, 3, b'123456')
copy = bm.copy()
bm[:, :] = 0
assert copy == ByteMatrix(2, 3, b'123456')
def test_view(self):
"""Test viewing."""
bm = ByteMatrix(2, 3, b'123456')
copy = bm.view
bm[:, :] = 0
assert copy == ByteMatrix(2, 3, 0)
def test_view_from_buffer(self):
"""Test view over buffer with pitch."""
buf = bytearray(b'1230000045600000')
bm = ByteMatrix.view_from_buffer(2, 3, 8, buf)
bm[:, :] = 0
assert buf == bytearray(b'\0\0\x0000000\0\0\x0000000')
def test_hstack(self):
"""Test horizontal stacking."""
bm = ByteMatrix(2, 3, b'123456')
bm2 = ByteMatrix(2, 1, b'ab')
assert hstack((bm, bm2)) == ByteMatrix(2, 4, b'123a456b')
def test_vstack(self):
"""Test vertical stacking."""
bm = ByteMatrix(2, 3, b'123456')
bm2 = ByteMatrix(1, 3, b'abc')
assert vstack((bm, bm2)) == ByteMatrix(3, 3, b'123456abc')
if __name__ == '__main__':
unittest.main()
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