JSON Pointer (RFC 6901)
qwen2.5-coder-3b
Pythononeshotrun 2sample 06.3s wall← run 2 · raw JSON · challenge definitions
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score
tests (60%)—
deliverables (20%)—
content checks (20%)—
one-shot reply is not valid JSON: Invalid \escape: line 3 column 151 (char 165)
01 what the model was asked
Create jsonpointer.py with exactly one function:
resolve(doc, pointer: str)
Resolve an RFC 6901 JSON Pointer against doc (nested dicts/lists) and return the referenced value.
Rules:
- The empty pointer "" refers to the whole document.
- A pointer is a sequence of /-prefixed reference tokens: "/a/b" means doc["a"]["b"].
- In a token, the escape ~1 decodes to "/" and ~0 decodes to "~" (decode ~1 before ~0).
- Tokens indexing a list are decimal indices: "/items/0" is the first element.
- Raise KeyError for anything that does not resolve (missing key, bad or out-of-range index, pointer not starting with "/", descending into a scalar).
Use only the Python standard library.
required deliverables + checks
✗deliverable: jsonpointer.py
✗jsonpointer.py must contain “def resolve”
pytest suite it was graded against
test_jsonpointer.py · 56 lines · 996 B
import pytest from jsonpointer import resolve DOC = { "foo": ["bar", "baz"], "": 0, "a/b": 1, "m~n": 8, "nested": {"list": [{"x": 42}]},} def test_whole_document(): assert resolve(DOC, "") is DOC def test_object_key(): assert resolve(DOC, "/foo") == ["bar", "baz"] def test_array_index(): assert resolve(DOC, "/foo/0") == "bar" def test_empty_key(): assert resolve(DOC, "/") == 0 def test_escaped_slash(): assert resolve(DOC, "/a~1b") == 1 def test_escaped_tilde(): assert resolve(DOC, "/m~0n") == 8 def test_deep_path(): assert resolve(DOC, "/nested/list/0/x") == 42 def test_missing_key_raises(): with pytest.raises(KeyError): resolve(DOC, "/nope") def test_bad_index_raises(): with pytest.raises(KeyError): resolve(DOC, "/foo/2") with pytest.raises(KeyError): resolve(DOC, "/foo/x") def test_pointer_without_slash_raises(): with pytest.raises(KeyError): resolve(DOC, "foo")
02 what it did — full transcript
promptthe exact instruction sent to the model
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You are completing a coding task in one shot. Write complete files that satisfy the spec below. Tests (pytest) will be run against your files; you cannot run them yourself.
Reply with ONE JSON object and nothing else:
{"files": {"<relative path>": "<complete file content>", ...}}
Required deliverable files: jsonpointer.py
SPEC:
Create jsonpointer.py with exactly one function:
resolve(doc, pointer: str)
Resolve an RFC 6901 JSON Pointer against doc (nested dicts/lists) and return the referenced value.
Rules:
- The empty pointer "" refers to the whole document.
- A pointer is a sequence of /-prefixed reference tokens: "/a/b" means doc["a"]["b"].
- In a token, the escape ~1 decodes to "/" and ~0 decodes to "~" (decode ~1 before ~0).
- Tokens indexing a list are decimal indices: "/items/0" is the first element.
- Raise KeyError for anything that does not resolve (missing key, bad or out-of-range index, pointer not starting with "/", descending into a scalar).
Use only the Python standard library.
reply171 tokens
view raw reply
```json
{
"files": {
"jsonpointer.py": "def resolve(doc, pointer: str) -> any:\n if not pointer.startswith('/'):\n raise ValueError('Pointer must start with \'/\'')\n\n tokens = pointer.split('/')[1:] # Skip the first empty token\n\n for token in tokens:\n if '~' in token:\n decoded_token = token.replace('~1', '/').replace('~0', '~')\n else:\n decoded_token = token\n\n try:\n doc = doc[decoded_token]\n except (KeyError, IndexError):\n raise KeyError(f'The pointer \'{pointer}\' does not resolve to a valid value in the document.')\n\n return doc"
}
}
```⚠ degenerate outputone-shot reply is not valid JSON: Invalid \escape: line 3 column 151 (char 165)
03 what it wrote
The model produced no files.
04 how it was graded
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171
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