Mix.Statifier.Corpus.Registry (Statifier v2.6.0)

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Derives conformance/registry.json, statifier-ex's claim against its own corpus, from the regression ratchet (ADR-0070 decisions 3 and 4).

test/passing_tests.json stays ADR-0006's ratchet file and mix test.baseline the only thing that grows it; the emitter calls derive/4 with the ratchet's SCION and W3C paths and writes what encode/1 returns. Nothing else writes the registry. The internal_tests globs never reach this module: they name this repository's unit tests, not corpus cases.

Each ratchet path names the generated test module of exactly one corpus case, and that case becomes one entry {case_id, suite}. A path that names no case, or a path two cases share, stops the derivation naming it. A case in the corpus but not in the ratchet has no entry: its absence is the claim that statifier-ex does not pass it. A case with no generated test module - a statifier case - has no ratchet path, so it enters the registry only once the ratchet can name it.

Claims are per suite, with no tiers: scion, w3c-mandatory, w3c-optional and statifier, the W3C suite split by each case's conformance class. A suite with no entries is not claimed, and a registry with no entries is refused: a claim of nothing is a defect.

The file is sorted - claims by name, entries by suite then case id - with one entry per line, so ratcheting a case in is a one-line diff.

Summary

Types

t()

A registry document, in conformance/schema/registry.json's shape.

Functions

claim(map)

The claim a corpus case's entry counts toward.

derive(cases, ratchet, corpus_hash, generated_path)

Derives the registry from cases (the corpus), ratchet (the ratchet's SCION and W3C paths, globs already expanded), the corpus hash the cases were written under, and generated_path, which names a case's generated test module or returns nil when it has none.

encode(registry)

Encodes a registry: pretty, with the claims on one line and one compact entry per line.

stale(committed, cases)

Checks a committed registry against the corpus cases, returning one sentence per problem: no entries at all, or an entry whose case the corpus lacks or holds under another suite.

Types

t()

@type t() :: %{required(String.t()) => term()}

A registry document, in conformance/schema/registry.json's shape.

Functions

claim(map)

@spec claim(corpus_case :: map()) :: String.t()

The claim a corpus case's entry counts toward.

Examples

iex> Mix.Statifier.Corpus.Registry.claim(%{"suite" => "w3c", "conformance" => "mandatory"})
"w3c-mandatory"

iex> Mix.Statifier.Corpus.Registry.claim(%{"suite" => "scion"})
"scion"

derive(cases, ratchet, corpus_hash, generated_path)

@spec derive(
  cases :: [map()],
  ratchet :: Enumerable.t(),
  corpus_hash :: String.t(),
  generated_path :: (map() -> Path.t() | nil)
) :: {:ok, t()} | {:error, String.t()}

Derives the registry from cases (the corpus), ratchet (the ratchet's SCION and W3C paths, globs already expanded), the corpus hash the cases were written under, and generated_path, which names a case's generated test module or returns nil when it has none.

Examples

iex> cases = [
...>   %{"id" => "scion/ads/view", "suite" => "scion"},
...>   %{"id" => "w3c/test9", "suite" => "w3c", "conformance" => "optional"},
...>   %{"id" => "w3c/test8", "suite" => "w3c", "conformance" => "mandatory"}
...> ]
iex> path = fn c -> "test/" <> c["id"] <> "_test.exs" end
iex> {:ok, registry} =
...>   Mix.Statifier.Corpus.Registry.derive(
...>     cases, ["test/w3c/test9_test.exs", "test/scion/ads/view_test.exs"], "sha256:00", path)
iex> registry["claims"]
["scion", "w3c-optional"]
iex> registry["entries"]
[%{"case_id" => "scion/ads/view", "suite" => "scion"}, %{"case_id" => "w3c/test9", "suite" => "w3c"}]

encode(registry)

@spec encode(registry :: t()) :: String.t()

Encodes a registry: pretty, with the claims on one line and one compact entry per line.

stale(committed, cases)

@spec stale(committed :: binary(), cases :: [map()]) :: [String.t()]

Checks a committed registry against the corpus cases, returning one sentence per problem: no entries at all, or an entry whose case the corpus lacks or holds under another suite.