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 +1,120 @@
+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):
+        toks = tokenize("42")
+        self.assertEqual(toks, [Token('NUMBER', 42), Token('EOF', None)])
+
+    def test_float(self):
+        toks = tokenize("3.14")
+        self.assertEqual(toks, [Token('NUMBER', 3.14), Token('EOF', None)])
+
+    def test_float_leading_dot(self):
+        toks = tokenize(".5")
+        self.assertEqual(toks, [Token('NUMBER', 0.5), Token('EOF', None)])
+
+    def test_float_trailing_dot(self):
+        toks = tokenize("10.")
+        self.assertEqual(toks, [Token('NUMBER', 10.0), Token('EOF', None)])
+
+    def test_integer_value_is_int(self):
+        toks = tokenize("7")
+        self.assertIsInstance(toks[0].value, int)
+
+    def test_float_value_is_float(self):
+        toks = tokenize("3.14")
+        self.assertIsInstance(toks[0].value, float)
+
+
+class TestOperatorsAndParens(unittest.TestCase):
+    def test_single_plus(self):
+        self.assertEqual(kinds("+"), ['PLUS', 'EOF'])
+
+    def test_single_minus(self):
+        self.assertEqual(kinds("-"), ['MINUS', 'EOF'])
+
+    def test_single_star(self):
+        self.assertEqual(kinds("*"), ['STAR', 'EOF'])
+
+    def test_single_slash(self):
+        self.assertEqual(kinds("/"), ['SLASH', 'EOF'])
+
+    def test_single_lparen(self):
+        self.assertEqual(kinds("("), ['LPAREN', 'EOF'])
+
+    def test_single_rparen(self):
+        self.assertEqual(kinds(")"), ['RPAREN', 'EOF'])
+
+    def test_expression_1_plus_2_star_3(self):
+        self.assertEqual(kinds("1+2*3"), ['NUMBER', 'PLUS', 'NUMBER', 'STAR', 'NUMBER', 'EOF'])
+
+    def test_expression_3_5_star_paren(self):
+        self.assertEqual(kinds("3.5*(1-2)"),
+                         ['NUMBER', 'STAR', 'LPAREN', 'NUMBER', 'MINUS', 'NUMBER', 'RPAREN', 'EOF'])
+
+
+class TestWhitespaceAndErrors(unittest.TestCase):
+    def test_spaces_between_tokens(self):
+        self.assertEqual(kinds("  12  +  3 "), ['NUMBER', 'PLUS', 'NUMBER', 'EOF'])
+
+    def test_tab_between_tokens(self):
+        self.assertEqual(kinds("1\t+\t2"), ['NUMBER', 'PLUS', 'NUMBER', 'EOF'])
+
+    def test_spaces_values(self):
+        toks = tokenize("  12  +  3 ")
+        self.assertEqual(toks[0].value, 12)
+        self.assertEqual(toks[1].kind, 'PLUS')
+        self.assertEqual(toks[2].value, 3)
+
+    def test_lex_error_at_sign(self):
+        with self.assertRaises(LexError):
+            tokenize("1 @ 2")
+
+    def test_lex_error_dollar(self):
+        with self.assertRaises(LexError):
+            tokenize("$")
+
+    def test_lex_error_letter(self):
+        with self.assertRaises(LexError):
+            tokenize("x")
+
+    def test_lex_error_message_contains_char(self):
+        try:
+            tokenize("1 @ 2")
+            self.fail("expected LexError")
+        except LexError as e:
+            self.assertIn('@', str(e))
+
+    def test_lex_error_message_contains_position(self):
+        try:
+            tokenize("1 @ 2")
+            self.fail("expected LexError")
+        except LexError as e:
+            # position 2 is the '@'
+            self.assertIn('2', str(e))
+
+    def test_empty_string(self):
+        self.assertEqual(kinds(""), ['EOF'])
+
+    def test_complex_expression(self):
+        toks = tokenize("3.5*(1-2)")
+        self.assertEqual(
+            [(t.kind, t.value) for t in toks],
+            [('NUMBER', 3.5), ('STAR', '*'), ('LPAREN', '('),
+             ('NUMBER', 1), ('MINUS', '-'), ('NUMBER', 2),
+             ('RPAREN', ')'), ('EOF', None)]
+        )
+
+
+if __name__ == '__main__':
+    unittest.main()