#!/usr/bin/env python3
"""
Unit tests for base assembly parser
"""

import os
import unittest

from osaca.parser import BaseParser
from osaca.parser.register import RegisterOperand
from osaca.parser.immediate import ImmediateOperand


class TestBaseParser(unittest.TestCase):
    @classmethod
    def setUpClass(self):
        try:
            self.parser = BaseParser()
        except NotImplementedError:
            pass
        with open(self._find_file("triad_x86_iaca.s")) as f:
            self.triad_code = f.read()
        with open(self._find_file("triad_x86_intel.s")) as f:
            self.triad_code_intel = f.read()
        with open(self._find_file("triad_arm_iaca.s")) as f:
            self.triad_code_arm = f.read()
        with open(self._find_file("kernel_x86.s")) as f:
            self.x86_code = f.read()
        with open(self._find_file("kernel_aarch64.s")) as f:
            self.aarch64_code = f.read()

    ##################
    # Test
    ##################

    def test_parse_file(self):
        with self.assertRaises(NotImplementedError):
            self.parser.parse_file(self.triad_code)

    def test_parse_line(self):
        line_instruction = "\t\tlea       2(%rax,%rax), %ecx #12.9"
        with self.assertRaises(NotImplementedError):
            self.parser.parse_line(line_instruction)

    def test_parse_instruction(self):
        instr1 = "\t\tvcvtsi2ss %edx, %xmm2, %xmm2\t\t\t#12.27"
        with self.assertRaises(NotImplementedError):
            self.parser.parse_instruction(instr1)

    def test_register_funcs(self):
        reg_a1 = RegisterOperand(name="rax")
        reg_a2 = RegisterOperand(name="eax")
        register_string = "v1.2d"
        with self.assertRaises(NotImplementedError):
            self.parser.is_reg_dependend_of(reg_a1, reg_a2)
        with self.assertRaises(NotImplementedError):
            self.parser.parse_register(register_string)
        with self.assertRaises(NotImplementedError):
            self.parser.is_gpr(reg_a1)
        with self.assertRaises(NotImplementedError):
            self.parser.is_vector_register(reg_a1)
        with self.assertRaises(NotImplementedError):
            self.parser.process_operand(reg_a1)
        with self.assertRaises(NotImplementedError):
            self.parser.get_full_reg_name(reg_a1)

    def test_normalize_imd(self):
        imd_hex_1 = ImmediateOperand(value="0x4f")
        with self.assertRaises(NotImplementedError):
            self.parser.normalize_imd(imd_hex_1)

    def test_detect_ISA(self):
        self.assertEqual(BaseParser.detect_ISA(self.triad_code), ("x86", "ATT"))
        self.assertEqual(BaseParser.detect_ISA(self.triad_code_intel), ("x86", "INTEL"))
        self.assertEqual(BaseParser.detect_ISA(self.triad_code_arm), ("aarch64", None))
        self.assertEqual(BaseParser.detect_ISA(self.x86_code), ("x86", "ATT"))
        self.assertEqual(BaseParser.detect_ISA(self.aarch64_code), ("aarch64", None))

    ##################
    # Helper functions
    ##################

    @staticmethod
    def _find_file(name):
        testdir = os.path.dirname(__file__)
        name = os.path.join(testdir, "test_files", name)
        assert os.path.exists(name)
        return name


if __name__ == "__main__":
    suite = unittest.TestLoader().loadTestsFromTestCase(TestBaseParser)
    unittest.TextTestRunner(verbosity=2).run(suite)