test(*): create test script

test/test.js

@@ -0,0 +1,52 @@
+const { test } = require('ava');
+const childProcess = require('child_process');
+
+test.cb('I can execute a function when i kill process with SIGINT signal', t => {
+    const child = childProcess.fork(`${__dirname}/test_process.js`);
+    child.on('message', message => {
+        t.deepEqual(message, 'exit')
+        t.end()
+    })
+    setTimeout(() => {child.kill('SIGINT')},1000);
+});
+
+test.cb('I can execute a function when i kill process with SIGTERM signal', t => {
+    const child = childProcess.fork(`${__dirname}/test_process.js`);
+    child.on('message', message => {
+        t.deepEqual(message, 'exit')
+        t.end()
+    })
+
+    setTimeout(() => {child.kill('SIGTERM')},500);
+});
+
+test.cb('I can not execute a function when i kill process without SIGTERM or SIGINT signal', t => {
+    const child = childProcess.fork(`${__dirname}/test_process.js`);
+    child.on('message', message => {
+        t.fail()
+        t.end()
+    })
+    child.on('exit', message => {
+        t.pass()
+        t.end()
+    })
+    setTimeout(() => {child.kill('SIGALRM')},500);
+});
+
+test.cb('I can kill the process before with a max delay', t => {
+    let timeout = true
+    const env = { EXIT_DELAY: 2000 }
+    const child = childProcess.fork(`${__dirname}/test_delay.js`, { env: env });
+    child.on('exit', message => {
+        t.pass()
+        t.end()
+        timeout = false
+    })
+    setTimeout(() => {child.kill('SIGTERM')},500);
+    setTimeout(() => {
+        if(timeout)
+        {
+            t.fail()
+            t.end()
+        }}, 2550);
+});

test/test_delay.js

@@ -0,0 +1,14 @@
+const trap = require('../index')
+
+function wait(){
+    return new Promise((resolve, reject) => {
+        setTimeout(() => {
+            resolve()
+        },5000);
+    })
+}
+trap.setExitDelay(parseInt(process.env.EXIT_DELAY))
+
+trap.onExit(async () => {await wait()})
+
+setTimeout(() => {process.send('normal exit')},6000);

test/test_process.js

@@ -0,0 +1,5 @@
+const trap = require('../index')
+
+trap.onExit(() => {process.send('exit')})
+
+setTimeout(() => {process.send('normal exit')},1000);