Agnes

.vscode/settings.json

@@ -0,0 +1,11 @@
+{
+    "python.testing.unittestArgs": [
+        "-v",
+        "-s",
+        ".",
+        "-p",
+        "test_*.py"
+    ],
+    "python.testing.pytestEnabled": false,
+    "python.testing.unittestEnabled": true
+}

bracket_validator.py

@@ -0,0 +1,24 @@
+def bracket_validator(input_string):
+    stack = []
+    opening_brackets = "([{"
+    closing_brackets = ")]}"
+
+
+    bracket_map = {
+        ')': '(',
+        ']': '[',
+        '}': '{'
+    }
+
+    for char in input_string:
+        if char in opening_brackets:
+            stack.append(char)
+        elif char in closing_brackets:
+            if not stack:
+                return False
+
+            last_open_bracket = stack.pop()
+            if last_open_bracket != bracket_map[char]:
+                return False
+
+    return not stack 

test_bracket_validator.py

@@ -0,0 +1,32 @@
+import unittest
+from bracket_validator import bracket_validator
+
+class TestBracketValidator(unittest.TestCase):
+    def test_valid_basic(self):
+        self.assertTrue(bracket_validator("()"))
+        self.assertTrue(bracket_validator("[]"))
+        self.assertTrue(bracket_validator("{}"))
+
+    def test_valid_nested(self):
+        self.assertTrue(bracket_validator("([])"))
+        self.assertTrue(bracket_validator("{[()]}"))
+
+    def test_valid_with_other_chars(self):
+        self.assertTrue(bracket_validator("a(b[c]{d})e"))
+
+    def test_invalid_unclosed(self):
+        self.assertFalse(bracket_validator("(()"))
+        self.assertFalse(bracket_validator("{[("))
+
+    def test_invalid_mismatched_pair(self):
+        self.assertFalse(bracket_validator("([)]"))
+        self.assertFalse(bracket_validator("(}"))
+
+    def test_empty_string(self):
+        self.assertTrue(bracket_validator(""))
+
+    def test_only_non_brackets(self):
+        self.assertTrue(bracket_validator("abc 123 def"))
+
+if __name__ == '__main__':
+    unittest.main()