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 +1,126 @@
+"""Tests for calc/lexer.py covering D1-D3."""
+import unittest
+from calc.lexer import tokenize, Token, LexError
+
+
+def kinds(src):
+    return [t.kind for t in tokenize(src)]
+
+
+def kv(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", None)])
+        self.assertIsInstance(result[0].value, int)
+
+    def test_float_standard(self):
+        result = tokenize("3.14")
+        self.assertEqual(len(result), 2)
+        self.assertEqual(result[0].kind, "NUMBER")
+        self.assertAlmostEqual(result[0].value, 3.14)
+        self.assertIsInstance(result[0].value, float)
+
+    def test_float_leading_dot(self):
+        result = tokenize(".5")
+        self.assertEqual(result[0].kind, "NUMBER")
+        self.assertAlmostEqual(result[0].value, 0.5)
+
+    def test_float_trailing_dot(self):
+        result = tokenize("10.")
+        self.assertEqual(result[0].kind, "NUMBER")
+        self.assertAlmostEqual(result[0].value, 10.0)
+        self.assertIsInstance(result[0].value, float)
+
+    def test_zero(self):
+        result = tokenize("0")
+        self.assertEqual(result[0], Token("NUMBER", 0))
+
+
+class TestOperatorsAndParens(unittest.TestCase):
+    def test_plus(self):
+        self.assertIn(Token("PLUS", "+"), tokenize("+"))
+
+    def test_minus(self):
+        self.assertIn(Token("MINUS", "-"), tokenize("-"))
+
+    def test_star(self):
+        self.assertIn(Token("STAR", "*"), tokenize("*"))
+
+    def test_slash(self):
+        self.assertIn(Token("SLASH", "/"), tokenize("/"))
+
+    def test_lparen(self):
+        self.assertIn(Token("LPAREN", "("), tokenize("("))
+
+    def test_rparen(self):
+        self.assertIn(Token("RPAREN", ")"), tokenize(")"))
+
+    def test_expression_kinds(self):
+        self.assertEqual(
+            kinds("1+2*3"),
+            ["NUMBER", "PLUS", "NUMBER", "STAR", "NUMBER", "EOF"],
+        )
+
+    def test_eof_last(self):
+        result = tokenize("1+2")
+        self.assertEqual(result[-1].kind, "EOF")
+
+
+class TestWhitespaceAndErrors(unittest.TestCase):
+    def test_spaces_skipped(self):
+        self.assertEqual(
+            kinds("  12  +  3 "),
+            ["NUMBER", "PLUS", "NUMBER", "EOF"],
+        )
+        result = tokenize("  12  +  3 ")
+        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):
+        result = kv("3.5*(1-2)")
+        self.assertEqual(
+            result,
+            [
+                ("NUMBER", 3.5),
+                ("STAR", "*"),
+                ("LPAREN", "("),
+                ("NUMBER", 1),
+                ("MINUS", "-"),
+                ("NUMBER", 2),
+                ("RPAREN", ")"),
+                ("EOF", None),
+            ],
+        )
+
+    def test_at_raises_lex_error(self):
+        with self.assertRaises(LexError):
+            tokenize("1 @ 2")
+
+    def test_dollar_raises_lex_error(self):
+        with self.assertRaises(LexError):
+            tokenize("$")
+
+    def test_letter_raises_lex_error(self):
+        with self.assertRaises(LexError):
+            tokenize("x")
+
+    def test_lex_error_message_has_char_and_pos(self):
+        try:
+            tokenize("1 @ 2")
+        except LexError as e:
+            self.assertIn("@", str(e))
+
+    def test_bare_dot_raises_lex_error(self):
+        with self.assertRaises(LexError):
+            tokenize(".")
+
+
+if __name__ == "__main__":
+    unittest.main()