def mem_cache_block_read_test():
mem = MockMemory()
data = "hello, world!"
mem.w_block(0x100, data)
assert mem.r_block(0x100, len(data)) == data
bdata = bytearray(data)
mem.w_block(0x180, bdata)
assert mem.r_block(0x180, len(bdata)) == bdata
mem.clear_block(0x200, 100, 42)
assert mem.r_block(0x200, 100) == chr(42) * 100
mem.copy_block(0x200, 0x300, 20)
assert mem.r_block(0x300, 21) == chr(42) * 20 + chr(0)
# write to main mem
cmem = MemoryCache(0x100, 0x220)
cmem.read_cache(mem)
assert cmem.r_block(0x100, len(data)) == data
assert cmem.r_block(0x180, len(bdata)) == bdata
assert cmem.r_block(0x200, 100) == chr(42) * 100
assert cmem.r_block(0x300, 21) == chr(42) * 20 + chr(0)
def mem_cache_block_read_test(): mem = MockMemory() data = "hello, world!" mem.w_block(0x100, data) assert mem.r_block(0x100, len(data)) == data bdata = bytearray(data) mem.w_block(0x180, bdata) assert mem.r_block(0x180, len(bdata)) == bdata mem.clear_block(0x200, 100, 42) assert mem.r_block(0x200, 100) == chr(42) * 100 mem.copy_block(0x200, 0x300, 20) assert mem.r_block(0x300, 21) == chr(42) * 20 + chr(0) # write to main mem cmem = MemoryCache(0x100, 0x220) cmem.read_cache(mem) assert cmem.r_block(0x100, len(data)) == data assert cmem.r_block(0x180, len(bdata)) == bdata assert cmem.r_block(0x200, 100) == chr(42) * 100 assert cmem.r_block(0x300, 21) == chr(42) * 20 + chr(0)
def mem_cache_block_write_test():
mem = MemoryCache(0x100, 0x220)
data = b"hello, world!"
mem.w_block(0x100, data)
assert mem.r_block(0x100, len(data)) == data
bdata = bytearray(data)
mem.w_block(0x180, bdata)
assert mem.r_block(0x180, len(bdata)) == bdata
mem.clear_block(0x200, 100, 42)
assert mem.r_block(0x200, 100) == bytes([42] * 100)
mem.copy_block(0x200, 0x300, 20)
assert mem.r_block(0x300, 21) == bytes([42] * 20) + b"\0"
# write to main mem
main_mem = MockMemory()
mem.write_cache(main_mem)
assert main_mem.r_block(0x100, len(data)) == data
assert main_mem.r_block(0x180, len(bdata)) == bdata
assert main_mem.r_block(0x200, 100) == bytes([42] * 100)
assert main_mem.r_block(0x300, 21) == bytes([42] * 20) + b"\0"