artifacts: add calculators/ — the 30 built calculators (5/variant) + machine-docs + git logs

calculators/builder-adversary-min/run-01/calc/test_lexer.py

@@ -0,0 +1,88 @@
+import unittest
+from calc.lexer import tokenize, Token, LexError
+
+
+def kinds(src):
+    return [t.kind for t in tokenize(src)]
+
+
+def tok(src):
+    return [(t.kind, t.value) for t in tokenize(src)]
+
+
+class TestNumbers(unittest.TestCase):
+    def test_integer(self):
+        result = tokenize("42")
+        self.assertEqual(result[0], Token('NUMBER', 42))
+        self.assertEqual(result[1].kind, 'EOF')
+        self.assertIsInstance(result[0].value, int)
+
+    def test_float_standard(self):
+        result = tokenize("3.14")
+        self.assertAlmostEqual(result[0].value, 3.14)
+        self.assertEqual(result[0].kind, 'NUMBER')
+
+    def test_float_leading_dot(self):
+        result = tokenize(".5")
+        self.assertAlmostEqual(result[0].value, 0.5)
+
+    def test_float_trailing_dot(self):
+        result = tokenize("10.")
+        self.assertAlmostEqual(result[0].value, 10.0)
+        self.assertIsInstance(result[0].value, float)
+
+
+class TestOperatorsAndParens(unittest.TestCase):
+    def test_operators(self):
+        self.assertEqual(kinds("1+2*3"), ['NUMBER', 'PLUS', 'NUMBER', 'STAR', 'NUMBER', 'EOF'])
+
+    def test_minus_slash(self):
+        ks = kinds("4-2/1")
+        self.assertIn('MINUS', ks)
+        self.assertIn('SLASH', ks)
+
+    def test_parens(self):
+        ks = kinds("(1)")
+        self.assertIn('LPAREN', ks)
+        self.assertIn('RPAREN', ks)
+
+    def test_complex_expr(self):
+        result = tok("3.5*(1-2)")
+        expected_kinds = ['NUMBER', 'STAR', 'LPAREN', 'NUMBER', 'MINUS', 'NUMBER', 'RPAREN', 'EOF']
+        self.assertEqual([k for k, v in result], expected_kinds)
+        self.assertAlmostEqual(result[0][1], 3.5)
+
+
+class TestWhitespaceAndErrors(unittest.TestCase):
+    def test_whitespace_skipped(self):
+        result = tok("  12  +  3 ")
+        self.assertEqual([k for k, v in result], ['NUMBER', 'PLUS', 'NUMBER', 'EOF'])
+        self.assertEqual(result[0][1], 12)
+        self.assertEqual(result[2][1], 3)
+
+    def test_tab_whitespace(self):
+        result = kinds("\t1\t+\t2\t")
+        self.assertEqual(result, ['NUMBER', 'PLUS', 'NUMBER', 'EOF'])
+
+    def test_at_raises_lex_error(self):
+        with self.assertRaises(LexError) as ctx:
+            tokenize("1 @ 2")
+        self.assertIn('@', str(ctx.exception))
+
+    def test_dollar_raises_lex_error(self):
+        with self.assertRaises(LexError):
+            tokenize("$10")
+
+    def test_letter_raises_lex_error(self):
+        with self.assertRaises(LexError):
+            tokenize("abc")
+
+    def test_error_reports_position(self):
+        with self.assertRaises(LexError) as ctx:
+            tokenize("1 @ 2")
+        msg = str(ctx.exception)
+        self.assertIn('2', msg)
+
+
+if __name__ == '__main__':
+    unittest.main()