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denoland-deno/cli/js/tests/signal_test.ts

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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import {
unitTest,
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assert,
assertEquals,
assertThrows,
createResolvable,
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} from "./test_util.ts";
function defer(n: number): Promise<void> {
return new Promise((resolve: () => void, _) => {
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setTimeout(resolve, n);
});
}
unitTest(
{ ignore: Deno.build.os !== "windows" },
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function signalsNotImplemented(): void {
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assertThrows(
() => {
Deno.signal(1);
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.alarm(); // for SIGALRM
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.child(); // for SIGCHLD
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.hungup(); // for SIGHUP
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.interrupt(); // for SIGINT
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.io(); // for SIGIO
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.pipe(); // for SIGPIPE
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.quit(); // for SIGQUIT
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.terminate(); // for SIGTERM
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.userDefined1(); // for SIGUSR1
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.userDefined2(); // for SIGURS2
},
Error,
"not implemented"
);
assertThrows(
() => {
Deno.signals.windowChange(); // for SIGWINCH
},
Error,
"not implemented"
);
}
);
unitTest(
{ ignore: Deno.build.os === "windows", perms: { run: true, net: true } },
async function signalStreamTest(): Promise<void> {
const resolvable = createResolvable();
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// This prevents the program from exiting.
const t = setInterval(() => {}, 1000);
let c = 0;
const sig = Deno.signal(Deno.Signal.SIGUSR1);
setTimeout(async () => {
await defer(20);
for (const _ of Array(3)) {
// Sends SIGUSR1 3 times.
Deno.kill(Deno.pid, Deno.Signal.SIGUSR1);
await defer(20);
}
sig.dispose();
resolvable.resolve();
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});
for await (const _ of sig) {
c += 1;
}
assertEquals(c, 3);
clearInterval(t);
await resolvable;
}
);
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unitTest(
{ ignore: Deno.build.os === "windows", perms: { run: true } },
async function signalPromiseTest(): Promise<void> {
const resolvable = createResolvable();
// This prevents the program from exiting.
const t = setInterval(() => {}, 1000);
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const sig = Deno.signal(Deno.Signal.SIGUSR1);
setTimeout(() => {
Deno.kill(Deno.pid, Deno.Signal.SIGUSR1);
resolvable.resolve();
}, 20);
await sig;
sig.dispose();
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clearInterval(t);
await resolvable;
}
);
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unitTest(
{ ignore: Deno.build.os === "windows", perms: { run: true } },
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function signalShorthandsTest(): void {
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let s: Deno.SignalStream;
s = Deno.signals.alarm(); // for SIGALRM
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.child(); // for SIGCHLD
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.hungup(); // for SIGHUP
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.interrupt(); // for SIGINT
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.io(); // for SIGIO
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.pipe(); // for SIGPIPE
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.quit(); // for SIGQUIT
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.terminate(); // for SIGTERM
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.userDefined1(); // for SIGUSR1
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.userDefined2(); // for SIGURS2
assert(s instanceof Deno.SignalStream);
s.dispose();
s = Deno.signals.windowChange(); // for SIGWINCH
assert(s instanceof Deno.SignalStream);
s.dispose();
}
);