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 @@
+"""Unit tests for calc.lexer — covers D1–D3."""
+
+import unittest
+from calc.lexer import tokenize, Token, LexError
+
+
+def kinds(src: str) -> list[str]:
+    return [t.kind for t in tokenize(src)]
+
+
+def values(src: str) -> list:
+    return [t.value for t in tokenize(src)]
+
+
+class TestNumbers(unittest.TestCase):
+    def test_integer(self):
+        toks = tokenize("42")
+        self.assertEqual(toks, [Token("NUMBER", 42), Token("EOF", None)])
+        self.assertIsInstance(toks[0].value, int)
+
+    def test_float_standard(self):
+        toks = tokenize("3.14")
+        self.assertEqual(len(toks), 2)
+        self.assertEqual(toks[0].kind, "NUMBER")
+        self.assertAlmostEqual(toks[0].value, 3.14)
+        self.assertIsInstance(toks[0].value, float)
+
+    def test_float_leading_dot(self):
+        toks = tokenize(".5")
+        self.assertEqual(toks[0].kind, "NUMBER")
+        self.assertAlmostEqual(toks[0].value, 0.5)
+        self.assertIsInstance(toks[0].value, float)
+
+    def test_float_trailing_dot(self):
+        toks = tokenize("10.")
+        self.assertEqual(toks[0].kind, "NUMBER")
+        self.assertAlmostEqual(toks[0].value, 10.0)
+        self.assertIsInstance(toks[0].value, float)
+
+    def test_zero(self):
+        toks = tokenize("0")
+        self.assertEqual(toks[0], Token("NUMBER", 0))
+
+
+class TestOperatorsAndParens(unittest.TestCase):
+    def test_plus(self):
+        self.assertIn("PLUS", kinds("1+2"))
+
+    def test_minus(self):
+        self.assertIn("MINUS", kinds("1-2"))
+
+    def test_star(self):
+        self.assertIn("STAR", kinds("1*2"))
+
+    def test_slash(self):
+        self.assertIn("SLASH", kinds("1/2"))
+
+    def test_lparen(self):
+        self.assertIn("LPAREN", kinds("(1)"))
+
+    def test_rparen(self):
+        self.assertIn("RPAREN", kinds("(1)"))
+
+    def test_expr_kinds(self):
+        self.assertEqual(
+            kinds("1+2*3"),
+            ["NUMBER", "PLUS", "NUMBER", "STAR", "NUMBER", "EOF"],
+        )
+
+    def test_eof_always_last(self):
+        for src in ["", "1", "1+2", "()"]:
+            self.assertEqual(tokenize(src)[-1].kind, "EOF")
+
+
+class TestWhitespaceAndErrors(unittest.TestCase):
+    def test_spaces_between_tokens(self):
+        self.assertEqual(
+            kinds("  12  +  3 "),
+            ["NUMBER", "PLUS", "NUMBER", "EOF"],
+        )
+        toks = tokenize("  12  +  3 ")
+        self.assertEqual(toks[0].value, 12)
+        self.assertEqual(toks[2].value, 3)
+
+    def test_tabs_skipped(self):
+        self.assertEqual(kinds("\t1\t+\t2\t"), ["NUMBER", "PLUS", "NUMBER", "EOF"])
+
+    def test_complex_expr(self):
+        self.assertEqual(
+            kinds("3.5*(1-2)"),
+            ["NUMBER", "STAR", "LPAREN", "NUMBER", "MINUS", "NUMBER", "RPAREN", "EOF"],
+        )
+        toks = tokenize("3.5*(1-2)")
+        self.assertAlmostEqual(toks[0].value, 3.5)
+        self.assertEqual(toks[3].value, 1)
+        self.assertEqual(toks[5].value, 2)
+
+    def test_invalid_at_raises(self):
+        with self.assertRaises(LexError):
+            tokenize("1 @ 2")
+
+    def test_invalid_dollar_raises(self):
+        with self.assertRaises(LexError):
+            tokenize("$")
+
+    def test_invalid_letter_raises(self):
+        with self.assertRaises(LexError):
+            tokenize("a")
+
+    def test_lex_error_message_contains_char(self):
+        try:
+            tokenize("1 @ 2")
+            self.fail("LexError not raised")
+        except LexError as e:
+            self.assertIn("@", str(e))
+
+    def test_lex_error_message_contains_position(self):
+        try:
+            tokenize("1 @ 2")
+            self.fail("LexError not raised")
+        except LexError as e:
+            self.assertIn("2", str(e))
+
+
+if __name__ == "__main__":
+    unittest.main()