return registration;

}

function joinContextFragments(...fragments: Array<string | undefined>): string {

const present: string[] = [];

for (const fragment of fragments) {

if (fragment) {

present.push(fragment);

}

}

return present.join("\n\n");

}

describe("host-hook fixture plugin contract", () => {

afterEach(() => {

setActivePluginRegistry(createEmptyPluginRegistry());

);

expect(

[queuedContext.prependContext, queuedContext.appendContext, hookContext?.prependContext]

.filter(Boolean)

.join("\n\n"),

joinContextFragments(

queuedContext.prependContext,

queuedContext.appendContext,

hookContext?.prependContext,

),

).toContain("approval workflow resumed");

expect(hookContext?.prependContext).toBe("fixture turn context");

});