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82 lines
2.3 KiB
Python
82 lines
2.3 KiB
Python
3 years ago
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from unittest import TestCase
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from riscemu.Tokenizer import tokenize, print_tokens, Token, TokenType, NEWLINE, COMMA
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def ins(name: str) -> Token:
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return Token(TokenType.INSTRUCTION_NAME, name)
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def arg(name: str) -> Token:
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return Token(TokenType.ARGUMENT, name)
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def op(name: str) -> Token:
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return Token(TokenType.PSEUDO_OP, name)
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def lbl(name: str) -> Token:
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return Token(TokenType.LABEL, name)
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class Test(TestCase):
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def test_instructions(self):
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program = [
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'li a0, 144',
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'divi a0, a0, 12',
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'xori a1, a0, 12'
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]
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tokens = [
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ins('li'), arg('a0'), COMMA, arg('144'), NEWLINE,
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ins('divi'), arg('a0'), COMMA, arg('a0'), COMMA, arg('12'), NEWLINE,
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ins('xori'), arg('a1'), COMMA, arg('a0'), COMMA, arg('12'), NEWLINE,
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]
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self.assertEqual(list(tokenize(program)), tokens)
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def test_comments(self):
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parsed_res = [
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ins('li'), arg('a0'), COMMA, arg('144'), NEWLINE
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]
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for c in ('#', '//', ';'):
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lines = [
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c + ' this is a comment',
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'li a0, 144'
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]
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self.assertEqual(list(tokenize(lines)), parsed_res)
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def test_pseudo_ins(self):
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parsed_res = [
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Token(TokenType.PSEUDO_OP, '.section'), Token(TokenType.ARGUMENT, '.text'), NEWLINE,
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Token(TokenType.PSEUDO_OP, '.type'), Token(TokenType.ARGUMENT, 'init'), COMMA,
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Token(TokenType.ARGUMENT, '@function'), NEWLINE
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]
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input_program = [
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'.section .text',
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'.type init, @function'
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]
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self.assertEqual(list(tokenize(input_program)), parsed_res)
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def test_full_program(self):
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program = """
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# a hashtag comment
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; semicolon comment followed by an empty line
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.section .text
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// double slash comment
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addi sp, sp, -32
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sw s0, 0(ra)
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section:
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sub s0, s0, s0
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"""
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tokens = [
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op('.section'), arg('.text'), NEWLINE,
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ins('addi'), arg('sp'), COMMA, arg('sp'), COMMA, arg('-32'), NEWLINE,
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ins('sw'), arg('s0'), COMMA, arg('ra'), arg('0'), NEWLINE,
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lbl('section:'), NEWLINE,
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ins('sub'), arg('s0'), COMMA, arg('s0'), COMMA, arg('s0'), NEWLINE
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]
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self.assertEqual(list(tokenize(program.splitlines())), tokens)
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