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1 #!/usr/bin/python
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2
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3 import unittest, cProfile
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4 from ppci import CompilerError
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5 from asm import AInstruction, ABinop, AUnop, ASymbol, ALabel, ANumber, tokenize, Assembler
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6 import msp430
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7
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8 class AssemblerLexingCase(unittest.TestCase):
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9 """ Tests the assemblers lexer """
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10
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11 def testLex0(self):
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12 """ Check if the lexer is OK """
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13 asmline, toks = 'mov rax, rbx ', ['ID', 'ID', ',', 'ID']
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14 self.assertSequenceEqual([tok.typ for tok in tokenize(asmline)], toks)
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15
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16 def testLex1(self):
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17 """ Test if lexer correctly maps some tokens """
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18 asmline, toks = 'lab1: mov rax, rbx ', ['ID', ':', 'ID', 'ID', ',', 'ID']
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19 self.assertSequenceEqual([tok.typ for tok in tokenize(asmline)], toks)
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20
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21 def testLex1(self):
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22 """ Test if lexer correctly maps some tokens """
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23 asmline, toks = 'mov 3.13 0xC 13', ['ID', 'REAL', 'NUMBER', 'NUMBER']
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24 self.assertSequenceEqual([tok.typ for tok in tokenize(asmline)], toks)
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25
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26 def testLex2(self):
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27 """ Test if lexer fails on a token that is invalid """
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28 asmline = '0z4: mov rax, rbx $ '
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29 with self.assertRaises(CompilerError):
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30 list(tokenize(asmline))
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31
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32 class AssemblerParsingTestCase(unittest.TestCase):
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33 """
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34 Tests the assembler parts
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35 """
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36 def setUp(self):
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37 self.a = Assembler()
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38
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39 def testParse(self):
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40 asmline = 'lab1: mov rax, rbx'
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41 self.a.parse_line(asmline)
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42
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43 def testParse2(self):
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44 asmline = 'a: mov rax, [rbx + 2]'
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45 self.a.parse_line(asmline)
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46 output = []
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47 output.append(ALabel('a'))
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48 output.append(AInstruction('mov', [ASymbol('rax'), AUnop('[]', ASymbol('rbx') + ANumber(2))]))
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49 self.assertSequenceEqual(output, self.a.output)
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50
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51 def testParse3(self):
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52 # A label must be optional:
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53 asmline = 'mov rax, 1'
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54 self.a.parse_line(asmline)
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55 output = [AInstruction('mov', [ASymbol('rax'), ANumber(1)])]
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56 self.assertSequenceEqual(output, self.a.output)
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57
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58 def testParse4(self):
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59 # Test 3 operands:
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60 asmline = 'add rax, [4*rbx + 22], rcx'
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61 self.a.parse_line(asmline)
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62 ops = []
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63 ops.append(ASymbol('rax'))
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64 ops.append(AUnop('[]', ANumber(4) * ASymbol('rbx') + ANumber(22)))
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65 ops.append(ASymbol('rcx'))
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66 output = [AInstruction('add', ops)]
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67 self.assertSequenceEqual(output, self.a.output)
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68
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69 def testParse5(self):
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70 # An instruction must be optional:
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71 asmline = 'lab1:'
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72 self.a.parse_line(asmline)
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73 output = []
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74 output.append(ALabel('lab1'))
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75 self.assertSequenceEqual(output, self.a.output)
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76
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77 def testParse6(self):
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78 # A line can be empty
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79 self.a.parse_line('')
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80
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81 class AssemblerOtherTestCase(unittest.TestCase):
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82 def testWithoutTarget(self):
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83 a = Assembler()
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84 with self.assertRaises(CompilerError):
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85 a.assemble_line('')
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86 @unittest.skip
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87 def testX86(self):
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88 testsrc = """ ; tst
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89 begin:
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90 mov rax, rbx ; 0x48, 0x89, 0xd8
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91 xor rcx, rbx ; 0x48, 0x31, 0xd9
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92 inc rcx ; 0x48 0xff 0xc1
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93 """
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94 a = Assembler()
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95 a.assemble(testsrc)
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96 # Compare with nasm output:
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97 nasmbytes = [0x48, 0x89, 0xd8, 0x48, 0x31, 0xd9, 0x48, 0xff, 0xc1]
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98
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99 class AssemblerMSP430TestCase(unittest.TestCase):
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100 def setUp(self):
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101 self.t = msp430.MSP430()
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102 self.a = Assembler(target=self.t)
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103
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104 def testMapInstruction(self):
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105 i = AInstruction('mov', [ASymbol('r14'), ASymbol('r15')])
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106 self.t.mapInstruction(i)
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107
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108 def testMapOperand(self):
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109 o = ASymbol('r14')
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110 mo = self.t.mapOperand(o)
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111 self.assertEqual(mo, msp430.r14)
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112
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113 def testMapOperandIndirection(self):
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114 o = AUnop('[]', ASymbol('r14'))
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115 mo = self.t.mapOperand(o)
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116
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117 def testMov(self):
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118 line1 = "mov r14, r15"
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119 self.a.assemble_line(line1)
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120
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121 def testAdd(self):
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122 line1 = "add r14, r15"
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123 self.a.assemble_line(line1)
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125
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126 if __name__ == '__main__':
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127 # cProfile.run('unittest.main()')
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128 unittest.main()
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