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test: tighten vitest process listener assertions

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This commit is contained in:
Shakker
2026-05-08 20:52:48 +01:00
parent 92c702b97a
commit 7d2dd28443
1 changed files with 27 additions and 10 deletions
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37
test/scripts/vitest-process-group.test.ts
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@@ -7,6 +7,23 @@ import {
} from "../../scripts/vitest-process-group.mjs";
describe("vitest process group helpers", () => {
function getListenerSet(listeners: Map<string, Set<() => void>>, event: string) {
const set = listeners.get(event);
expect(set).toBeDefined();
if (!set) {
throw new Error(`expected ${event} listener set`);
}
return set;
}
function expectListenerCount(
listeners: Map<string, Set<() => void>>,
event: string,
count: number,
) {
expect(getListenerSet(listeners, event).size).toBe(count);
}
it("uses detached process groups on non-Windows hosts", () => {
expect(shouldUseDetachedVitestProcessGroup("darwin")).toBe(true);
expect(shouldUseDetachedVitestProcessGroup("linux")).toBe(true);
@@ -84,17 +101,17 @@ describe("vitest process group helpers", () => {
kill,
});
expect(listeners.get("SIGINT")?.size).toBe(1);
expect(listeners.get("SIGTERM")?.size).toBe(1);
expect(listeners.get("exit")?.size).toBe(1);
expectListenerCount(listeners, "SIGINT", 1);
expectListenerCount(listeners, "SIGTERM", 1);
expectListenerCount(listeners, "exit", 1);
listeners.get("SIGTERM")?.values().next().value?.();
getListenerSet(listeners, "SIGTERM").values().next().value();
expect(kill).toHaveBeenCalledWith(-4200, "SIGTERM");
teardown();
expect(listeners.get("SIGINT")?.size ?? 0).toBe(0);
expect(listeners.get("SIGTERM")?.size ?? 0).toBe(0);
expect(listeners.get("exit")?.size ?? 0).toBe(0);
expectListenerCount(listeners, "SIGINT", 0);
expectListenerCount(listeners, "SIGTERM", 0);
expectListenerCount(listeners, "exit", 0);
});
it("raises process listener limits for highly parallel cleanup handlers", () => {
@@ -134,8 +151,8 @@ describe("vitest process group helpers", () => {
for (const teardown of teardowns) {
teardown();
}
expect(listeners.get("SIGINT")?.size ?? 0).toBe(0);
expect(listeners.get("SIGTERM")?.size ?? 0).toBe(0);
expect(listeners.get("exit")?.size ?? 0).toBe(0);
expectListenerCount(listeners, "SIGINT", 0);
expectListenerCount(listeners, "SIGTERM", 0);
expectListenerCount(listeners, "exit", 0);
});
});