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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,53 +1,79 @@ | ||
| /** @type {import("race-cancellation")} */ | ||
| /* eslint-disable @typescript-eslint/no-unsafe-return */ | ||
| /* eslint-disable @typescript-eslint/no-unsafe-assignment */ | ||
|
|
||
| /* | ||
| This helper module allows us to import from the module under test | ||
| while using the package conditional exports of "import" if supported | ||
| or falling back to package "main" if not supported. | ||
| Which lets us run the same test suite on both exports to ensure that | ||
| it works on Node < 12.17.0 or newer node using require or import. | ||
| */ | ||
|
|
||
| /** @type {{[prop: string]: unknown}} */ | ||
| let raceCancellation; | ||
|
|
||
| async function loadModule() { | ||
| try { | ||
| return (raceCancellation = await import("race-cancellation")); | ||
| } catch { | ||
| } catch (e) { | ||
| const [major, minor] = process.versions.node.split(".", 2).map(Number); | ||
| if (major > 12 || (major === 12 && minor >= 17)) { | ||
| // modules were enabled by default version >= 12.17 | ||
| // so if this failed there is a problem with the modules | ||
| // most likely something didn't include the .js on the | ||
| // import specifier. | ||
| throw e; | ||
| } | ||
| // fallback to require export | ||
| return (raceCancellation = require("race-cancellation")); | ||
| } | ||
| } | ||
|
|
||
| // load test module and register before hook to wait for it | ||
| const promise = loadModule(); | ||
|
|
||
| before(() => promise); | ||
|
|
||
| /** @type {any} */ | ||
| const proxy = new Proxy(promise, { | ||
| get(target, prop) { | ||
| const value = target[/** @type {keyof typeof target} */ (prop)]; | ||
| if (typeof value === "function") { | ||
| return value.bind(target); | ||
| } | ||
| if (value !== undefined) { | ||
| // proxy through to promise of module | ||
| // mocha loadFilesAsync awaits module.exports | ||
| if (prop in target) { | ||
| const value = target[/** @type {keyof typeof target} */ (prop)]; | ||
| if (typeof value === "function") { | ||
| // bind then, catch etc | ||
| return value.bind(target); | ||
| } | ||
| return value; | ||
| } | ||
| // if raceCancellation isn't loaded return a function | ||
| // that will invoke it when it is | ||
| if (raceCancellation === undefined) { | ||
| return (/** @type {any[]} */ ...args) => { | ||
| if (raceCancellation === undefined) { | ||
| throw new Error(`race-cancellation not loaded yet`); | ||
| } | ||
|
|
||
| if (prop in raceCancellation) { | ||
| /** @type {any} */ | ||
| const fn = | ||
| raceCancellation[ | ||
| /** @type {keyof typeof raceCancellation} */ (prop) | ||
| ]; | ||
| return fn(...args); | ||
| } | ||
| }; | ||
| } | ||
| if (prop in raceCancellation) { | ||
| return raceCancellation[ | ||
| /** @type {keyof typeof raceCancellation} */ (prop) | ||
| ]; | ||
| // if possible export name then proxy to module | ||
| if (typeof prop === "string") { | ||
| // if not loaded return a function that will call it when invoked | ||
| if (raceCancellation === undefined) { | ||
| return (/** @type {any[]} */ ...args) => { | ||
| if (raceCancellation === undefined) { | ||
| // the before hook should have run unless this was called | ||
| // outside of a test which isn't supported | ||
| throw new Error( | ||
| `race-cancellation not loaded yet, this function can only be inside of a test` | ||
| ); | ||
| } | ||
| const fn = raceCancellation[prop]; | ||
| if (typeof fn === "function") { | ||
| return fn(...args); | ||
| } else if (fn === undefined) { | ||
| throw new Error(`${prop} is not exported by race-cancellation`); | ||
| } else { | ||
| throw new Error(`${prop} is not a function`); | ||
| } | ||
| }; | ||
| } | ||
| // if loaded just return its value | ||
| return raceCancellation[prop]; | ||
| } | ||
| return value; | ||
| }, | ||
| }); | ||
|
|
||
| module.exports = /** @type {typeof import("race-cancellation")} */ (proxy); | ||
| // export proxy | ||
| module.exports = /** @type {import("race-cancellation")} */ (proxy); |
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