Test data

The tests read files under testdata/. That directory is the only local input the suite needs.

Wire cases

testdata/kiln-v2-cases.json is the version-2 case file. It has 46 cases. tests/kiln_v2_cases.rs loads that file.

expect	What a passing run means
accept	Decode the hex, match decoded when the case has one, and re-encode to the same bytes.
reject	The error name equals error.

Seventeen cases accept and twenty-nine reject. The schemas in the file are tensor-v2, a framed struct, a struct with a tensors field, and lists of f32, str, or struct{a:i64}. A list count of 16777216 structs is EOF because the elements are not in the buffer. The count is inside the default cap, so it is not LIMIT. tests/hostile_alloc.rs checks that this path allocates no element storage.

Tensor payloads of accept cases must be slices of the input buffer.

Schemas

File	What it generates
testdata/schema/point.json	Point, with x, y, and an optional string label.
testdata/schema/message.json	Message and nested Meta.

bash scripts/check-generated.sh writes those files again and diffs them against tests/generated. A drift fails the check.

Python oracle

testdata/reference/kiln_ref.py is a copy of the Frozen reference encoder. tests/oracle.rs runs it with python3 and compares bytes. The oracle covers Point, Message, lists, options, dicts, and framed values, including negative zero and a quiet NaN payload. The library does not import that module at runtime.

The reference file is test-only. Encoding and decoding in production use the Rust crate.