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

2026-06-16 15:39:42 +00:00
parent 64bc360fc0
commit bb85aa9f11
728 changed files with 34148 additions and 0 deletions
@@ -0,0 +1,125 @@
+import unittest
+from calc.lexer import tokenize, Token, LexError
+
+
+def kinds(src):
+    return [t.kind for t in tokenize(src)]
+
+
+def pairs(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, [Token("NUMBER", 42), Token("EOF")])
+
+    def test_float(self):
+        result = tokenize("3.14")
+        self.assertEqual(result[0], Token("NUMBER", 3.14))
+        self.assertEqual(result[1], Token("EOF"))
+
+    def test_float_leading_dot(self):
+        result = tokenize(".5")
+        self.assertEqual(result[0], Token("NUMBER", 0.5))
+        self.assertEqual(result[1], Token("EOF"))
+
+    def test_float_trailing_dot(self):
+        result = tokenize("10.")
+        self.assertEqual(result[0], Token("NUMBER", 10.0))
+        self.assertEqual(result[1], Token("EOF"))
+
+    def test_number_value_int(self):
+        result = tokenize("0")
+        self.assertIsInstance(result[0].value, int)
+
+    def test_number_value_float(self):
+        result = tokenize("3.14")
+        self.assertIsInstance(result[0].value, float)
+
+
+class TestOperatorsAndParens(unittest.TestCase):
+    def test_plus(self):
+        self.assertIn("PLUS", kinds("+"))
+
+    def test_minus(self):
+        self.assertIn("MINUS", kinds("-"))
+
+    def test_star(self):
+        self.assertIn("STAR", kinds("*"))
+
+    def test_slash(self):
+        self.assertIn("SLASH", kinds("/"))
+
+    def test_lparen(self):
+        self.assertIn("LPAREN", kinds("("))
+
+    def test_rparen(self):
+        self.assertIn("RPAREN", kinds(")"))
+
+    def test_expression_1_plus_2_times_3(self):
+        self.assertEqual(
+            kinds("1+2*3"),
+            ["NUMBER", "PLUS", "NUMBER", "STAR", "NUMBER", "EOF"],
+        )
+
+    def test_all_operators(self):
+        self.assertEqual(
+            kinds("+-*/()"),
+            ["PLUS", "MINUS", "STAR", "SLASH", "LPAREN", "RPAREN", "EOF"],
+        )
+
+
+class TestWhitespaceAndErrors(unittest.TestCase):
+    def test_whitespace_between_tokens(self):
+        result = tokenize("  12  +  3 ")
+        self.assertEqual(kinds("  12  +  3 "), ["NUMBER", "PLUS", "NUMBER", "EOF"])
+        self.assertEqual(result[0].value, 12)
+        self.assertEqual(result[2].value, 3)
+
+    def test_tabs_skipped(self):
+        self.assertEqual(kinds("1\t+\t2"), ["NUMBER", "PLUS", "NUMBER", "EOF"])
+
+    def test_complex_expression(self):
+        self.assertEqual(
+            pairs("3.5*(1-2)"),
+            [
+                ("NUMBER", 3.5),
+                ("STAR", None),
+                ("LPAREN", None),
+                ("NUMBER", 1),
+                ("MINUS", None),
+                ("NUMBER", 2),
+                ("RPAREN", None),
+                ("EOF", None),
+            ],
+        )
+
+    def test_invalid_at_raises_lex_error(self):
+        with self.assertRaises(LexError):
+            tokenize("1 @ 2")
+
+    def test_invalid_dollar_raises_lex_error(self):
+        with self.assertRaises(LexError):
+            tokenize("$5")
+
+    def test_invalid_letter_raises_lex_error(self):
+        with self.assertRaises(LexError):
+            tokenize("x")
+
+    def test_lex_error_message_contains_char(self):
+        try:
+            tokenize("1 @ 2")
+        except LexError as e:
+            self.assertIn("@", str(e))
+
+    def test_lex_error_message_contains_position(self):
+        try:
+            tokenize("1 @ 2")
+        except LexError as e:
+            self.assertIn("2", str(e))
+
+
+if __name__ == "__main__":
+    unittest.main()