feat: add sigkill and sigterm events

Author: crutchcorn

package.json

@@ -43,12 +43,14 @@
     "lz-string": "^1.4.4",
     "pretty-format": "^27.0.2",
     "strip-ansi": "^6.0.1",
-    "strip-final-newline": "^2.0.0"
+    "strip-final-newline": "^2.0.0",
+    "tree-kill": "^1.2.2"
   },
   "devDependencies": {
     "@types/lz-string": "^1.3.34",
     "@types/strip-final-newline": "^3.0.0",
     "inquirer": "^8.2.0",
+    "is-running": "^2.1.0",
     "jest-in-case": "^1.0.2",
     "jest-snapshot-serializer-ansi": "^1.0.0",
     "jest-watch-select-projects": "^2.0.0",

src/__tests__/render-basics.js

@@ -1,6 +1,8 @@
 const {resolve} = require('path')
 const {render} = require('../pure')
 const {fireEvent} = require('../events')
+const isRunning = require('is-running')
+const {waitFor} = require("../wait-for");
 
 test('Should handle stderr outputs with rejection', async () => {
   await expect(() =>
@@ -44,7 +46,6 @@ test('Is able to make terminal input and view in-progress stdout', async () => {
   expect(await findByText('First option: Two')).toBeTruthy()
 })
 
-
 test('fireEvent works when bound', async () => {
   const {fireEvent: fireEventLocal, findByText, cleanup} = await render('node', [
     resolve(__dirname, './execute-scripts/stdio-inquirer.js'),
@@ -67,3 +68,21 @@ test('fireEvent works when bound', async () => {
   fireEvent.enter(instance)
   cleanup();
 })
+
+
+test('SigTerm works', async () => {
+  const {findByText, cleanup} = await render('node', [
+    resolve(__dirname, './execute-scripts/stdio-inquirer.js'),
+  ])
+
+  const instance = await findByText('First option')
+
+  expect(instance).toBeTruthy()
+
+  fireEvent.sigterm(instance);
+
+  cleanup()
+
+  await waitFor(() => expect(isRunning(instance.pid)).toBeFalsy())
+})
+

src/event-map.js

@@ -1,7 +1,11 @@
+const kill = require('tree-kill');
+
 const eventMap = {
-  down: '\x1B\x5B\x42',
-  up: '\x1B\x5B\x41',
-  enter: '\x0D',
+  down: instance => instance.stdin.write('\x1B\x5B\x42'),
+  up: instance => instance.stdin.write('\x1B\x5B\x41'),
+  enter: instance => instance.stdin.write('\x0D'),
+  sigterm: instance => kill(instance.pid),
+  sigkill: instance => kill(instance.pid, 'SIGKILL')
 }
 
 export {eventMap}

src/events.ts

@@ -9,11 +9,10 @@ type BoundFireEventRecord = Record<
     ShiftArgs<FireEventRecord[string]>
 >
 
-
 const fireEvent = Object.entries(eventMap).reduce<FireEventRecord>(
-  (prev, [eventName, keyCode]) => {
+  (prev, [eventName, eventFn]) => {
     prev[eventName] = (instance) => {
-      instance.stdin.write(keyCode)
+        eventFn(instance)
     }
     return prev
   },

src/pure.ts

@@ -85,6 +85,7 @@ async function render(
       stdin: exec.stdin,
       stdout: exec.stdout,
       stderr: exec.stderr,
+      pid: exec.pid
     },
     getQueriesForElement(execOutputAPI),
     getFireEventForElement(execOutputAPI as unknown as TestInstance)

types/pure.d.ts

@@ -16,4 +16,5 @@ export interface TestInstance {
   stdout: Readable
   stderr: Readable
   stdoutStr: string
+  pid: number | undefined
 }