Added test cases for TypedArray methods

Author: Napalys

javascript/ql/test/library-tests/TaintTracking/BasicTaintTracking.expected

@@ -43,6 +43,9 @@ consistencyIssue
 | nested-props.js:20 | expected an alert, but found none | NOT OK - but not found | Consistency |
 | stringification-read-steps.js:17 | expected an alert, but found none | NOT OK | Consistency |
 | stringification-read-steps.js:25 | expected an alert, but found none | NOT OK | Consistency |
+| typed-arrays.js:15 | expected an alert, but found none | NOT OK | Consistency |
+| typed-arrays.js:18 | expected an alert, but found none | NOT OK | Consistency |
+| typed-arrays.js:22 | expected an alert, but found none | NOT OK | Consistency |
 flow
 | access-path-sanitizer.js:2:18:2:25 | source() | access-path-sanitizer.js:4:8:4:12 | obj.x |
 | addexpr.js:4:10:4:17 | source() | addexpr.js:7:8:7:8 | x |

javascript/ql/test/library-tests/TaintTracking/typed-arrays.js

@@ -9,4 +9,15 @@ function test() {
 
     var arr = new Uint8Array(y.buffer, y.byteOffset, y.byteLength);
     sink(arr); // NOT OK
+
+    const z = new Uint8Array([1, 2, 3]);
+    z.set(y, 3);
+    sink(z); // NOT OK
+
+    const sub = y.subarray(1, 3)
+    sink(sub); // NOT OK
+
+    const clone = new y.constructor(y.length);
+    clone.set(y);    
+    sink(clone); // NOT OK
 }