81 lines
3.0 KiB
Rust
81 lines
3.0 KiB
Rust
//! Smoke test for the channels target against a synthetic fixture.
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//! The JS channels.mjs runs types through `openapi-typescript` which the
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//! Rust codegen replaces with direct interface emission; byte-equivalence
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//! against the JS baseline is intentionally not the gate. Instead this
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//! test checks structural properties of the emitted output.
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use std::collections::BTreeMap;
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use std::path::PathBuf;
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use mizan_codegen::config::{Config, SourceConfig};
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use mizan_codegen::emit::CodegenTarget;
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use mizan_codegen::emit::channels::ChannelsTarget;
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use mizan_codegen::fetch::parse_ir_from_str;
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fn fixture_config() -> Config {
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Config {
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project_id: None,
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output: PathBuf::from("/tmp"),
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targets: vec!["channels".to_string()],
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source: SourceConfig { fastapi: None, django: None, rust: None, script: None },
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rust_kernel: None,
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rust_crate_name: None,
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}
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}
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#[test]
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fn channels_target_emits_expected_files() {
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let raw = std::fs::read_to_string(
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PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("tests/fixtures/channels_ir.kdl"),
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).unwrap();
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let ir = parse_ir_from_str(&raw).unwrap();
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let files = ChannelsTarget.emit(&ir, &fixture_config());
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assert_eq!(files.len(), 2, "channels target emits 2 files when channels present");
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let by_path: BTreeMap<PathBuf, &str> =
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files.iter().map(|f| (f.rel_path.clone(), f.content.as_str())).collect();
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let ts = by_path.get(&PathBuf::from("channels.ts"))
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.expect("channels.ts emitted");
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for expected in [
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"export interface ChatChannelParams",
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"export interface ChatReactMessage",
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"export interface ChatDjangoMessage",
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"export interface NotificationsDjangoMessage",
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"export const CHANNELS = {",
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"chat: {",
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"notifications: {",
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"hasParams: true",
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"hasParams: false",
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] {
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assert!(ts.contains(expected), "channels.ts must contain {expected:?}");
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}
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let hooks = by_path.get(&PathBuf::from("channels.hooks.tsx"))
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.expect("channels.hooks.tsx emitted");
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for expected in [
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"import { useChannel, type ChannelSubscription } from 'mizan/channels'",
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"export function useChatChannel(params: ChatChannelParams)",
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"export function useNotificationsChannel()",
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"ChannelSubscription<ChatChannelParams, ChatDjangoMessage, ChatReactMessage>",
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"ChannelSubscription<Record<string, never>, NotificationsDjangoMessage, never>",
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] {
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assert!(hooks.contains(expected), "channels.hooks.tsx must contain {expected:?}");
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}
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}
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#[test]
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fn channels_target_emits_nothing_when_empty() {
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// AFI fixture has no channels — target should produce zero files.
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let raw = std::fs::read_to_string(
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PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("tests/fixtures/afi_ir.kdl"),
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).unwrap();
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let ir = parse_ir_from_str(&raw).unwrap();
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let files = ChannelsTarget.emit(&ir, &fixture_config());
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assert!(files.is_empty(), "no channels → no files");
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}
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