Implement infinity loop test case

tests/test67.spec.js

@@ -0,0 +1,32 @@
+import { IVProgParser } from './../js/ast/ivprogParser';
+import { IVProgProcessor} from './../js/processor/ivprogProcessor'
+import { SemanticAnalyser } from "./../js/processor/semantic/semanticAnalyser";
+import { LanguageService } from '../js/services/languageService';
+
+describe('Command Do...While after the set timeout', function () {
+
+  IVProgProcessor.LOOP_TIMEOUT = 500;
+  let input = `programa {
+
+    funcao inicio() {
+      inteiro a = 0
+      faca {
+        a = a + 1
+      } enquanto(1 < 4)
+    }
+  }`;
+
+  const lexer = LanguageService.getCurrentLexer();
+
+  it(`should be forcedly killed `, function (done) {
+    const parser = new IVProgParser(input, lexer);
+    const semantic = new SemanticAnalyser(parser.parseTree());
+    const exec = new IVProgProcessor(semantic.analyseTree());
+    exec.interpretAST().then(_ => {
+      done("No error thrown");
+    }).catch( _ => {
+      expect(1).toEqual(1);
+      done();
+    });
+  });
+});