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denoland-deno/cli/tests/unit/signal_test.ts
Matt Mastracci fe0d9e078f
chore(cli): unflake signal test (#21185)
If these tests do eventually break, they'll time out.
2023-11-13 18:45:48 +00:00

293 lines
6.3 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { assertEquals, assertThrows, delay } from "./test_util.ts";
Deno.test(
{ ignore: Deno.build.os !== "windows" },
function signalsNotImplemented() {
const msg =
"Windows only supports ctrl-c (SIGINT) and ctrl-break (SIGBREAK).";
assertThrows(
() => {
Deno.addSignalListener("SIGALRM", () => {});
},
Error,
msg,
);
assertThrows(
() => {
Deno.addSignalListener("SIGCHLD", () => {});
},
Error,
msg,
);
assertThrows(
() => {
Deno.addSignalListener("SIGHUP", () => {});
},
Error,
msg,
);
assertThrows(
() => {
Deno.addSignalListener("SIGIO", () => {});
},
Error,
msg,
);
assertThrows(
() => {
Deno.addSignalListener("SIGPIPE", () => {});
},
Error,
msg,
);
assertThrows(
() => {
Deno.addSignalListener("SIGQUIT", () => {});
},
Error,
msg,
);
assertThrows(
() => {
Deno.addSignalListener("SIGTERM", () => {});
},
Error,
msg,
);
assertThrows(
() => {
Deno.addSignalListener("SIGUSR1", () => {});
},
Error,
msg,
);
assertThrows(
() => {
Deno.addSignalListener("SIGUSR2", () => {});
},
Error,
msg,
);
assertThrows(
() => {
Deno.addSignalListener("SIGWINCH", () => {});
},
Error,
msg,
);
assertThrows(
() => Deno.addSignalListener("SIGKILL", () => {}),
Error,
msg,
);
assertThrows(
() => Deno.addSignalListener("SIGSTOP", () => {}),
Error,
msg,
);
assertThrows(
() => Deno.addSignalListener("SIGILL", () => {}),
Error,
msg,
);
assertThrows(
() => Deno.addSignalListener("SIGFPE", () => {}),
Error,
msg,
);
assertThrows(
() => Deno.addSignalListener("SIGSEGV", () => {}),
Error,
msg,
);
},
);
Deno.test(
{
ignore: Deno.build.os === "windows",
permissions: { run: true },
},
async function signalListenerTest() {
const { promise, resolve } = Promise.withResolvers<void>();
let c = 0;
const listener = () => {
c += 1;
};
Deno.addSignalListener("SIGUSR1", listener);
setTimeout(async () => {
// Sends SIGUSR1 3 times.
for (const _ of Array(3)) {
await delay(20);
Deno.kill(Deno.pid, "SIGUSR1");
}
await promise;
Deno.removeSignalListener("SIGUSR1", listener);
});
// We'll get three signals eventually
while (c < 3) {
await delay(20);
}
resolve();
},
);
Deno.test(
{
ignore: Deno.build.os === "windows",
permissions: { run: true },
},
async function multipleSignalListenerTest() {
const { promise, resolve } = Promise.withResolvers<void>();
let c = "";
const listener0 = () => {
c += "0";
};
const listener1 = () => {
c += "1";
};
Deno.addSignalListener("SIGUSR2", listener0);
Deno.addSignalListener("SIGUSR2", listener1);
setTimeout(async () => {
// Sends SIGUSR2 3 times.
for (const _ of Array(3)) {
await delay(20);
Deno.kill(Deno.pid, "SIGUSR2");
}
while (c.length < 6) {
await delay(20);
}
Deno.removeSignalListener("SIGUSR2", listener1);
// Sends SIGUSR2 3 times.
for (const _ of Array(3)) {
await delay(20);
Deno.kill(Deno.pid, "SIGUSR2");
}
await delay(20);
// Sends SIGUSR1 (irrelevant signal) 3 times.
for (const _ of Array(3)) {
await delay(20);
Deno.kill(Deno.pid, "SIGUSR1");
}
while (c.length < 9) {
await delay(20);
}
Deno.removeSignalListener("SIGUSR2", listener0);
resolve();
});
await promise;
// The first 3 events are handled by both handlers
// The last 3 events are handled only by handler0
assertEquals(c, "010101000");
},
);
// This tests that pending op_signal_poll doesn't block the runtime from exiting the process.
Deno.test(
{
permissions: { run: true, read: true },
},
async function canExitWhileListeningToSignal() {
const { code } = await new Deno.Command(Deno.execPath(), {
args: [
"eval",
"--unstable",
"Deno.addSignalListener('SIGINT', () => {})",
],
}).output();
assertEquals(code, 0);
},
);
Deno.test(
{
ignore: Deno.build.os !== "windows",
permissions: { run: true },
},
function windowsThrowsOnNegativeProcessIdTest() {
assertThrows(
() => {
Deno.kill(-1, "SIGKILL");
},
TypeError,
"Invalid pid",
);
},
);
Deno.test(
{
ignore: Deno.build.os !== "windows",
permissions: { run: true },
},
function noOpenSystemIdleProcessTest() {
let signal: Deno.Signal = "SIGKILL";
assertThrows(
() => {
Deno.kill(0, signal);
},
TypeError,
`Invalid pid`,
);
signal = "SIGTERM";
assertThrows(
() => {
Deno.kill(0, signal);
},
TypeError,
`Invalid pid`,
);
},
);
Deno.test(function signalInvalidHandlerTest() {
assertThrows(() => {
// deno-lint-ignore no-explicit-any
Deno.addSignalListener("SIGINT", "handler" as any);
});
assertThrows(() => {
// deno-lint-ignore no-explicit-any
Deno.removeSignalListener("SIGINT", "handler" as any);
});
});
Deno.test(
{
ignore: Deno.build.os === "windows",
permissions: { run: true },
},
function signalForbiddenSignalTest() {
assertThrows(
() => Deno.addSignalListener("SIGKILL", () => {}),
TypeError,
"Binding to signal 'SIGKILL' is not allowed",
);
assertThrows(
() => Deno.addSignalListener("SIGSTOP", () => {}),
TypeError,
"Binding to signal 'SIGSTOP' is not allowed",
);
assertThrows(
() => Deno.addSignalListener("SIGILL", () => {}),
TypeError,
"Binding to signal 'SIGILL' is not allowed",
);
assertThrows(
() => Deno.addSignalListener("SIGFPE", () => {}),
TypeError,
"Binding to signal 'SIGFPE' is not allowed",
);
assertThrows(
() => Deno.addSignalListener("SIGSEGV", () => {}),
TypeError,
"Binding to signal 'SIGSEGV' is not allowed",
);
},
);