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|
// Copyright 2018-2024 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() {
let c = 0;
const listener = () => {
c += 1;
};
// This test needs to be careful that it doesn't accidentally aggregate multiple
// signals into one. Sending two or more SIGxxx before the handler can be run will
// result in signal coalescing.
Deno.addSignalListener("SIGUSR1", listener);
// Sends SIGUSR1 3 times.
for (let i = 1; i <= 3; i++) {
await delay(1);
Deno.kill(Deno.pid, "SIGUSR1");
while (c < i) {
await delay(20);
}
}
Deno.removeSignalListener("SIGUSR1", listener);
await delay(100);
assertEquals(c, 3);
},
);
Deno.test(
{
ignore: Deno.build.os === "windows",
permissions: { run: true },
},
async function multipleSignalListenerTest() {
let c = "";
const listener0 = () => {
c += "0";
};
const listener1 = () => {
c += "1";
};
// This test needs to be careful that it doesn't accidentally aggregate multiple
// signals into one. Sending two or more SIGxxx before the handler can be run will
// result in signal coalescing.
Deno.addSignalListener("SIGUSR2", listener0);
Deno.addSignalListener("SIGUSR2", listener1);
// Sends SIGUSR2 3 times.
for (let i = 1; i <= 3; i++) {
await delay(1);
Deno.kill(Deno.pid, "SIGUSR2");
while (c.length < i * 2) {
await delay(20);
}
}
Deno.removeSignalListener("SIGUSR2", listener1);
// Sends SIGUSR2 3 times.
for (let i = 1; i <= 3; i++) {
await delay(1);
Deno.kill(Deno.pid, "SIGUSR2");
while (c.length < 6 + i) {
await delay(20);
}
}
// Sends SIGUSR1 (irrelevant signal) 3 times.
// By default SIGUSR1 terminates, so set it to a no-op for this test.
let count = 0;
const irrelevant = () => {
count++;
};
Deno.addSignalListener("SIGUSR1", irrelevant);
for (const _ of Array(3)) {
await delay(20);
Deno.kill(Deno.pid, "SIGUSR1");
}
while (count < 3) {
await delay(20);
}
Deno.removeSignalListener("SIGUSR1", irrelevant);
// No change
assertEquals(c, "010101000");
Deno.removeSignalListener("SIGUSR2", listener0);
await delay(100);
// 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",
"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",
);
},
);
Deno.test(
{ ignore: Deno.build.os !== "linux" },
function signalAliasLinux() {
const i = () => {};
Deno.addSignalListener("SIGUNUSED", i);
Deno.addSignalListener("SIGPOLL", i);
Deno.removeSignalListener("SIGUNUSED", i);
Deno.removeSignalListener("SIGPOLL", i);
},
);
|
