Test fixture
Implementation-focused coding tasks with structured correctness checks.
The model receives the prompt (and optional system message). The run uses scorer javascript_function_tests with the JSON configuration below. Pass/fail and partial credit are determined entirely by that scorer against the model output; no human grading.
Return JSON only with a string field named code. The code must be dependency-free JavaScript, define the requested function in the top level or module.exports, and include no markdown, imports, require, timers, network, filesystem, eval, or placeholders.
Implement function capitalizeWords(str). Capitalize the first letter of each word and lowercase the remaining letters in each word. Words are separated by spaces. Return an empty string for empty input.
Your JSON must look like {"code":"function capitalizeWords(...) { ... }"}.{
"function_name": "capitalizeWords",
"timeout_ms": 100,
"test_pass_threshold": 1,
"partial_credit_threshold": 0.5,
"tests": "[hidden executable tests]"
}temperature
0
max_tokens
1000
timeout (s)
120
type
scored
file
coding-easy-capitalize-words.json