Files
mizan/protocol/mizan-codegen/tests/python_parity.rs
Ryth Azhur 9900f8a36f Mizan IR: cut over to KDL, delete OpenAPI envelope
Replaces the transitional OpenAPI 3.0 + `x-mizan-*` extensions
substrate with the canonical Mizan IR as KDL, per docs/AFI_ARCHITECTURE.md:
"KDL is the contract; everything else (REST envelopes, OpenAPI
documents, framework idioms) is sediment around it."

End-to-end cutover. No transitional path left on main.

Forward direction:
  cores/mizan-python/src/mizan_core/ir.py
    build_ir() walks mizan_core.registry, introspects Pydantic
    models directly (no JSON-Schema indirection), and emits the
    Mizan IR document. The KDL grammar is locked in this file's
    module docstring.

Backends emit KDL:
  backends/mizan-fastapi/src/mizan_fastapi/ir.py
    `python -m mizan_fastapi.ir <module>` — CLI entry point.
  backends/mizan-django/.../management/commands/export_mizan_ir.py
    `manage.py export_mizan_ir` — Django mgmt command.

Codegen consumes KDL:
  protocol/mizan-codegen/Cargo.toml: + kdl = "6"
  protocol/mizan-codegen/src/ir.rs: NamedType { Struct/List/Enum/Alias }
    + TypeShape { Primitive/Ref/List/Optional/Enum/Union } sum types,
    replacing the JsonSchema sprawl. KDL parser walks the
    `kdl::KdlDocument` tree into typed Rust structs.
  protocol/mizan-codegen/src/fetch.rs: subprocess command switches
    to the new IR-export entry points.
  All emit modules (stage1 / react / python / rust / vue / svelte /
    channels) port their type-walkers from JsonSchema to the new
    sum types — case analysis collapses substantially.

Substrate-honesty wins beyond the moat closure:
  - `int | bool` multi-arm unions land as `TypeShape::Union` (was
    silently coerced to "string" before).
  - `<CamelName>Output = list[T]` returns emit as named alias
    types instead of struct-shaped wrappers, so consumer code
    `.map()` works directly on the type.
  - Pydantic field defaults flow through to `default` properties
    in KDL, then back to non-optional shape in every target.

Deleted:
  - backends/mizan-fastapi/src/mizan_fastapi/{cli,schema}.py
  - backends/mizan-django/.../export_mizan_schema.py
  - openapi-bearing half of mizan/export/__init__.py (edge
    manifest generator preserved — separate concern).
  - tests/afi/schema_normalizer.py
  - tests/fixtures/{afi_schema.json, channels_schema.json}
  - tests/fixtures/js_* baseline directories.

Verification:
  - 20 mizan-codegen unit tests green (IR deserialization,
    byte-equivalence parity across stage1/rust/python/react/vue/svelte
    against fresh KDL-driven baselines, channels structural).
  - tests/rust/run_wire_parity.py: 12/12 probes green driving
    the binary end-to-end through KDL.
  - Blazr studio-ui typechecks against the regenerated React client.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-17 19:14:47 -04:00

76 lines
2.2 KiB
Rust

//! Byte-equivalence test for the Python target against the JS baseline.
use std::collections::BTreeMap;
use std::path::PathBuf;
use mizan_codegen::config::{Config, SourceConfig};
use mizan_codegen::emit::{CodegenTarget, EmittedFile};
use mizan_codegen::emit::python::PythonClient;
use mizan_codegen::fetch::parse_ir_from_str;
fn load_ir() -> mizan_codegen::ir::MizanIR {
let path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("tests/fixtures/afi_ir.kdl");
parse_ir_from_str(&std::fs::read_to_string(&path).unwrap()).unwrap()
}
fn fixture_config() -> Config {
Config {
project_id: None,
output: PathBuf::from("/tmp"),
targets: vec!["python".to_string()],
source: SourceConfig { fastapi: None, django: None },
rust_kernel: None,
rust_crate_name: None,
}
}
fn read_baseline(rel: &str) -> String {
let path = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
.join("tests/fixtures/baselines/python")
.join(rel);
std::fs::read_to_string(&path)
.unwrap_or_else(|e| panic!("read baseline {}: {e}", path.display()))
}
fn emit_index(files: &[EmittedFile]) -> BTreeMap<PathBuf, &str> {
files.iter().map(|f| (f.rel_path.clone(), f.content.as_str())).collect()
}
fn assert_byte_equal(rel: &str, files: &BTreeMap<PathBuf, &str>) {
let actual = files
.get(&PathBuf::from(rel))
.unwrap_or_else(|| panic!("Python target did not produce {rel}"));
let expected = read_baseline(rel);
if *actual != expected {
for (lineno, (a, b)) in actual.lines().zip(expected.lines()).enumerate() {
if a != b {
panic!(
"{rel} diverges at line {}:\n expected: {b:?}\n actual: {a:?}",
lineno + 1,
);
}
}
panic!(
"{rel} diverges in length: actual={} expected={}",
actual.len(), expected.len(),
);
}
}
#[test]
fn python_target_all_files_match_baseline() {
let ir = load_ir();
let files = PythonClient.emit(&ir, &fixture_config());
let index = emit_index(&files);
for rel in ["types.py", "client.py", "__init__.py"] {
assert_byte_equal(rel, &index);
}
}