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import { describe, expect, it } from "vitest";
import { createEmptyPluginRegistry } from "../plugins/registry-empty.js";
import { createPluginRecord } from "../plugins/status.test-helpers.js";
import { adoptRuntimeContextEngineRegistrations, type ContextEngineFactory } from "./registry.js";
const unusedFactory: ContextEngineFactory = async () => {
throw new Error("context engine factory should not run");
};
function registryWithPluginEngine(params: {
pluginId: string;
engineId: string;
lifecycle: "runtime" | "readOnlyDiscovery";
source?: string;
status?: "loaded" | "disabled" | "error";
owner?: string;
factory?: ContextEngineFactory;
}) {
const registry = createEmptyPluginRegistry();
registry.plugins.push(
createPluginRecord({
id: params.pluginId,
source: params.source ?? `/tmp/${params.pluginId}`,
status: params.status ?? "loaded",
}),
);
registry.contextEngines.set(params.engineId, {
factory: params.factory ?? unusedFactory,
owner: params.owner ?? `plugin:${params.pluginId}`,
lifecycle: params.lifecycle,
});
return registry;
}
describe("adoptRuntimeContextEngineRegistrations", () => {
it("copies a missing full-mode runtime engine from the composition-root registry", () => {
const runtimeFactory: ContextEngineFactory = async () => {
throw new Error("runtime factory should not run");
};
const root = registryWithPluginEngine({
pluginId: "ce-probe",
engineId: "ce-probe",
lifecycle: "runtime",
factory: runtimeFactory,
});
const scoped = createEmptyPluginRegistry();
scoped.plugins.push(createPluginRecord({ id: "ce-probe", source: "/tmp/ce-probe" }));
const adopted = adoptRuntimeContextEngineRegistrations(scoped, root);
expect(adopted).not.toBe(scoped);
expect(scoped.contextEngines.get("ce-probe")).toBeUndefined();
expect(adopted.contextEngines.get("ce-probe")).toEqual({
factory: runtimeFactory,
owner: "plugin:ce-probe",
lifecycle: "runtime",
});
});
it("upgrades a matching read-only discovery entry to the root runtime factory", () => {
const discoveryFactory: ContextEngineFactory = async () => {
throw new Error("discovery factory should not run");
};
const runtimeFactory: ContextEngineFactory = async () => {
throw new Error("runtime factory should not run");
};
const scoped = registryWithPluginEngine({
pluginId: "ce-probe",
engineId: "ce-probe",
lifecycle: "readOnlyDiscovery",
factory: discoveryFactory,
});
const root = registryWithPluginEngine({
pluginId: "ce-probe",
engineId: "ce-probe",
lifecycle: "runtime",
factory: runtimeFactory,
});
const adopted = adoptRuntimeContextEngineRegistrations(scoped, root);
expect(scoped.contextEngines.get("ce-probe")?.factory).toBe(discoveryFactory);
expect(adopted.contextEngines.get("ce-probe")?.factory).toBe(runtimeFactory);
expect(adopted.contextEngines.get("ce-probe")?.lifecycle).toBe("runtime");
});
it("returns the original handle when nothing can be adopted", () => {
const scoped = createEmptyPluginRegistry();
const root = createEmptyPluginRegistry();
expect(adoptRuntimeContextEngineRegistrations(scoped, root)).toBe(scoped);
});
it("does not copy engines from a different plugin source", () => {
const root = registryWithPluginEngine({
pluginId: "ce-probe",
engineId: "ce-probe",
lifecycle: "runtime",
source: "/tmp/root-ce-probe",
});
const scoped = createEmptyPluginRegistry();
scoped.plugins.push(createPluginRecord({ id: "ce-probe", source: "/tmp/shadow-ce-probe" }));
expect(adoptRuntimeContextEngineRegistrations(scoped, root)).toBe(scoped);
});
it("does not copy engines whose plugin is absent from the caller-owned handle", () => {
const root = registryWithPluginEngine({
pluginId: "ce-probe",
engineId: "ce-probe",
lifecycle: "runtime",
});
const scoped = createEmptyPluginRegistry();
expect(adoptRuntimeContextEngineRegistrations(scoped, root)).toBe(scoped);
});
it("does not replace an existing runtime registration", () => {
const scopedFactory: ContextEngineFactory = async () => {
throw new Error("scoped factory should not run");
};
const rootFactory: ContextEngineFactory = async () => {
throw new Error("root factory should not run");
};
const scoped = registryWithPluginEngine({
pluginId: "ce-probe",
engineId: "ce-probe",
lifecycle: "runtime",
factory: scopedFactory,
});
const root = registryWithPluginEngine({
pluginId: "ce-probe",
engineId: "ce-probe",
lifecycle: "runtime",
factory: rootFactory,
});
const adopted = adoptRuntimeContextEngineRegistrations(scoped, root);
expect(adopted).toBe(scoped);
expect(adopted.contextEngines.get("ce-probe")?.factory).toBe(scopedFactory);
});
it("does not copy core-owned engines or disabled plugin engines", () => {
const root = createEmptyPluginRegistry();
root.contextEngines.set("legacy", {
factory: unusedFactory,
owner: "core",
lifecycle: "runtime",
});
root.plugins.push(
createPluginRecord({ id: "ce-probe", source: "/tmp/ce-probe", status: "loaded" }),
);
root.contextEngines.set("ce-probe", {
factory: unusedFactory,
owner: "plugin:ce-probe",
lifecycle: "runtime",
});
const scoped = createEmptyPluginRegistry();
scoped.plugins.push(
createPluginRecord({ id: "ce-probe", source: "/tmp/ce-probe", status: "disabled" }),
);
expect(adoptRuntimeContextEngineRegistrations(scoped, root)).toBe(scoped);
});
});
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