remove lets and start naming things

Author: emilygilberts

tests/mapreduce/test.mapreduce.js

@@ -1691,58 +1691,63 @@ function tests(suiteName, dbName, dbType, viewType) {
       }
     });
 
-    it('Test unsafe object usage (#244)', function () {
+    it('Test unsafe object usage (#244)', async function () {
       const db = new PouchDB(dbName);
-      return db.bulkDocs([
+      const writeRes = await db.bulkDocs([
         {_id: 'constructor'}
-      ]).then(function (res) {
-        let rev = res[0].rev;
-        return createView(db, {
-          map: function (doc) {
-            emit(doc._id);
-          }
-        }).then(function (queryFun) {
-          return db.query(queryFun, {include_docs: true}).then(function (res) {
-            res.rows.should.deep.equal([
-              {
-                "key": "constructor",
-                "id": "constructor",
-                "value": null,
-                "doc": {
-                  "_id": "constructor",
-                  "_rev": rev
-                }
-              }
-            ]);
-            return db.bulkDocs([
-              {_id: 'constructor', _rev: rev}
-            ]);
-          }).then(function (res) {
-            rev = res[0].rev;
-            return db.query(queryFun, {include_docs: true});
-          }).then(function (res) {
-            res.rows.should.deep.equal([
-              {
-                "key": "constructor",
-                "id": "constructor",
-                "value": null,
-                "doc": {
-                  "_id": "constructor",
-                  "_rev": rev
-                }
-              }
-            ]);
-            return db.bulkDocs([
-              {_id: 'constructor', _rev: rev, _deleted: true}
-            ]);
-          }).then(function (res) {
-            rev = res[0].rev;
-            return db.query(queryFun, {include_docs: true});
-          }).then(function (res) {
-            res.rows.should.deep.equal([]);
-          });
-        });
+      ]);
+      const rev = writeRes[0].rev;
+
+      const queryFun =  await createView(db, {
+        map: function (doc) {
+          emit(doc._id);
+        },
       });
+
+      const queryRes = await db.query(queryFun, {include_docs: true});
+
+      queryRes.rows.should.deep.equal([
+        {
+          "key": "constructor",
+          "id": "constructor",
+          "value": null,
+          "doc": {
+            "_id": "constructor",
+            "_rev": rev
+          }
+        }
+      ]);
+
+      const writeResWithRev = await db.bulkDocs([
+          {_id: 'constructor', _rev: rev}
+        ]);
+
+      const rev1 = writeResWithRev[0].rev;
+
+      const queryRes1 = await db.query(queryFun, {include_docs: true});
+
+      queryRes1.rows.should.deep.equal([
+        {
+          "key": "constructor",
+          "id": "constructor",
+          "value": null,
+          "doc": {
+            "_id": "constructor",
+            "_rev": rev1
+          }
+        }
+      ]);
+
+      const deletedDoc = await db.bulkDocs([
+        {_id: 'constructor', _rev: rev1, _deleted: true}
+      ]);
+
+      const rev2 = deletedDoc[0].rev;
+
+      const queryRes2 = await db.query(queryFun, {include_docs: true});
+
+      queryRes2.rows.should.deep.equal([]);
+      rev2[0].should.equal('3');
     });
 
     it("Test view querying with a skip option and reduce", function () {