Added more test cases which common js libraries uses .pipe()

Author: Napalys

javascript/ql/test/query-tests/Quality/UnhandledStreamPipe/arktype.js

@@ -0,0 +1,3 @@
+import { type } from 'arktype';
+
+type.string.pipe(Number) // $SPURIOUS:Alert

javascript/ql/test/query-tests/Quality/UnhandledStreamPipe/execa.js

@@ -0,0 +1,11 @@
+const execa = require('execa');
+
+(async () => {
+  const first = execa('node', ['empty.js']);
+  const second = execa('node', ['stdin.js']);
+
+  first.stdout.pipe(second.stdin); // $SPURIOUS:Alert
+
+  const {stdout} = await second;
+  console.log(stdout);
+})();

javascript/ql/test/query-tests/Quality/UnhandledStreamPipe/highland.js

@@ -0,0 +1,8 @@
+const highland = require('highland');
+const fs = require('fs');
+
+highland(fs.createReadStream('input.txt'))  
+  .map(line => {
+    if (line.length === 0) throw new Error('Empty line');
+    return line;
+  }).pipe(fs.createWriteStream('output.txt')); // $SPURIOUS:Alert

javascript/ql/test/query-tests/Quality/UnhandledStreamPipe/rxjsStreams.js

@@ -1,7 +1,7 @@
 import * as rx from 'rxjs';
 import * as ops from 'rxjs/operators';
 import { TestScheduler } from 'rxjs/testing';
-
+import { pluck } from "rxjs/operators/pluck";
 
 const { of, from } = rx;
 const { map, filter } = ops;
@@ -15,4 +15,6 @@ function f(){
     const source = x('', {o: [a, b, c]});
     z(source.pipe(null)).toBe(expected,y,);
   });
+
+  z.option$.pipe(pluck("x")) // $SPURIOUS:Alert
 }

javascript/ql/test/query-tests/Quality/UnhandledStreamPipe/test.expected

@@ -1,3 +1,7 @@
+| arktype.js:3:1:3:24 | type.st ... Number) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
+| execa.js:7:3:7:33 | first.s ... .stdin) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
+| highland.js:4:1:8:45 | highlan ... .txt')) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
+| rxjsStreams.js:19:3:19:28 | z.optio ... k("x")) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
 | test.js:4:5:4:28 | stream. ... nation) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
 | test.js:19:5:19:17 | s2.pipe(dest) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |
 | test.js:45:5:45:30 | stream2 ... ation2) | Stream pipe without error handling on the source stream. Errors won't propagate downstream and may be silently dropped. |