Fix violations of qunit/require-expect rule

Author: Andrey Fel

tests/unit/qunit/async-iterator-test.js

@@ -47,7 +47,6 @@ if (macroCondition(dependencySatisfies('ember-qunit', '*'))) {
   });
 
   test('should get the value from response.', function (assert) {
-    assert.expect(1);
     const done = assert.async();
     this.testem.on('next-module-request', () => {
       this.testem.emit('next-module-response', {
@@ -68,7 +67,6 @@ if (macroCondition(dependencySatisfies('ember-qunit', '*'))) {
   });
 
   test('should iterate promises until there is no response.', function (assert) {
-    assert.expect(1);
     const done = assert.async();
     const testem = this.testem;
     const responses = ['a', 'b', 'c'];
@@ -116,7 +114,6 @@ if (macroCondition(dependencySatisfies('ember-qunit', '*'))) {
   });
 
   test('should dispose after iteration.', function (assert) {
-    assert.expect(4);
     const done = assert.async();
     const testem = this.testem;
     const responses = ['a', 'b', 'c'];
@@ -154,7 +151,7 @@ if (macroCondition(dependencySatisfies('ember-qunit', '*'))) {
   });
 
   test('should resolve with iterator finishing if request is not handled within 2s', function (assert) {
-    assert.expect(1);
+    const done = assert.async();
     const iteratorOfPromises = new AsyncIterator(this.testem, {
       request: 'next-module-request',
       response: 'next-module-response',
@@ -163,11 +160,12 @@ if (macroCondition(dependencySatisfies('ember-qunit', '*'))) {
 
     return iteratorOfPromises.next().then((res) => {
       assert.true(res.done);
+      done();
     });
   });
 
   test('should resolve a timeout error if request is not handled within 2s when emberExamExitOnError is true', function (assert) {
-    assert.expect(1);
+    const done = assert.async();
     const iteratorOfPromises = new AsyncIterator(this.testem, {
       request: 'next-module-request',
       response: 'next-module-response',
@@ -178,12 +176,14 @@ if (macroCondition(dependencySatisfies('ember-qunit', '*'))) {
     return iteratorOfPromises.next().then(
       () => {
         assert.ok(false, 'Promise should not resolve, expecting reject');
+        done();
       },
       (err) => {
         assert.deepEqual(
           err.message,
           'EmberExam: Promise timed out after 2 s while waiting for response for next-module-request',
         );
+        done();
       },
     );
   });