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Enhance test_lexer.py with Tests for New Bitwise Operators and Data Types #66

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Addressed review comments: updated lexer for bitwise operators
Raghav-2903 committed Aug 21, 2024

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commit 8af0007fd48108fdca87f7423a7aa25b768f3a9a
68 changes: 68 additions & 0 deletions tests/test_translator/test_lexer.py
Original file line number Diff line number Diff line change
@@ -99,3 +99,71 @@ def test_function_call_tokenization():
tokenize_code(code)
except SyntaxError:
pytest.fail("Function call tokenization not implemented.")


# New tests for the additional tokens

def test_bitwise_operators_tokenization():
code = """
int a = 5 & 3;
int b = 5 | 3;
int c = 5 ^ 3;
int d = ~5;
int e = 5 << 1;
int f = 5 >> 1;
"""
tokens = tokenize_code(code)
expected_tokens = [
('INT', 'int'), ('IDENTIFIER', 'a'), ('EQUALS', '='),
('NUMBER', '5'), ('BITWISE_AND', '&'), ('NUMBER', '3'), ('SEMICOLON', ';'),
('INT', 'int'), ('IDENTIFIER', 'b'), ('EQUALS', '='),
('NUMBER', '5'), ('BITWISE_OR', '|'), ('NUMBER', '3'), ('SEMICOLON', ';'),
('INT', 'int'), ('IDENTIFIER', 'c'), ('EQUALS', '='),
('NUMBER', '5'), ('BITWISE_XOR', '^'), ('NUMBER', '3'), ('SEMICOLON', ';'),
('INT', 'int'), ('IDENTIFIER', 'd'), ('EQUALS', '='),
('BITWISE_NOT', '~'), ('NUMBER', '5'), ('SEMICOLON', ';'),
('INT', 'int'), ('IDENTIFIER', 'e'), ('EQUALS', '='),
('NUMBER', '5'), ('BITWISE_SHIFT_LEFT', '<<'), ('NUMBER', '1'), ('SEMICOLON', ';'),
('INT', 'int'), ('IDENTIFIER', 'f'), ('EQUALS', '='),
('NUMBER', '5'), ('BITWISE_SHIFT_RIGHT', '>>'), ('NUMBER', '1'), ('SEMICOLON', ';')
]
assert tokens == expected_tokens


def test_assignment_operators_tokenization():
code = """
int a = 5;
a &= 3;
a |= 3;
a ^= 3;
a %= 3;
a <<= 1;
a >>= 1;
"""
tokens = tokenize_code(code)
expected_tokens = [
('INT', 'int'), ('IDENTIFIER', 'a'), ('EQUALS', '='), ('NUMBER', '5'), ('SEMICOLON', ';'),
('IDENTIFIER', 'a'), ('ASSIGN_AND', '&='), ('NUMBER', '3'), ('SEMICOLON', ';'),
('IDENTIFIER', 'a'), ('ASSIGN_OR', '|='), ('NUMBER', '3'), ('SEMICOLON', ';'),
('IDENTIFIER', 'a'), ('ASSIGN_XOR', '^='), ('NUMBER', '3'), ('SEMICOLON', ';'),
('IDENTIFIER', 'a'), ('ASSIGN_MOD', '%='), ('NUMBER', '3'), ('SEMICOLON', ';'),
('IDENTIFIER', 'a'), ('ASSIGN_SHIFT_LEFT', '<<='), ('NUMBER', '1'), ('SEMICOLON', ';'),
('IDENTIFIER', 'a'), ('ASSIGN_SHIFT_RIGHT', '>>='), ('NUMBER', '1'), ('SEMICOLON', ';')
]
assert tokens == expected_tokens


def test_data_types_and_const_tokenization():
code = """
const double pi = 3.14159;
unsigned int maxVal = 255;
"""
tokens = tokenize_code(code)
expected_tokens = [
('CONST', 'const'), ('DOUBLE', 'double'), ('IDENTIFIER', 'pi'), ('EQUALS', '='),
('FLOAT_NUMBER', '3.14159'), ('SEMICOLON', ';'),
('UNSIGNED_INT', 'unsigned int'), ('IDENTIFIER', 'maxVal'), ('EQUALS', '='),
('NUMBER', '255'), ('SEMICOLON', ';')
]
assert tokens == expected_tokens