diff --git a/types/collectionsjs/collectionsjs-tests.ts b/types/collectionsjs/collectionsjs-tests.ts
index 2b7a3d5fb0..b415502d67 100644
--- a/types/collectionsjs/collectionsjs-tests.ts
+++ b/types/collectionsjs/collectionsjs-tests.ts
@@ -6,52 +6,52 @@ const collectable = [
     { name: 'Jon Snow', age: 14 }
 ];
 
-const collection = new Collection(collectable);
-
-const item = { 6: 7 };
-
-collection.add(item);
-collection.all();
-collection.average('age');
-collection.chunk(2).all();
-collection.collect(collectable);
-
 const characters = [
     { name: 'Ned Stark', age: 40},
     { name: 'Catelyn Stark', age: 35}
 ];
 
+const item = { 6: 7 };
+
 const array = ['a', 'b', 'c'];
 
-collection.concat(characters);
-collection.contains(stark => stark.name === 'John Snow');
-collection.count();
-collection.each(t => t = 3);
-collection.filter(stark => stark.age === 14);
-collection.find('bran');
-collection.first(item => item.age > 7);
-collection.flatten(true);
-collection.get(2);
-collection.has({ name: 'Bran Stark', age: 7 });
-collection.join();
-collection.keys();
-collection.last();
-collection.map(stark => stark.name);
-collection.pluck('name');
-collection.push({name: 'Robb Stark', age: 17});
-collection.reduce((previous, current) => previous + current, 0);
-collection.reject(stark => stark.age < 14);
-collection.remove({name: 'Robb Stark', age: 17});
-collection.skip(2);
-collection.slice(1, 3);
-collection.sort();
-collection.sortBy('name');
-collection.stringify();
-collection.sum('age');
-collection.take(2);
-collection.macro('addToMembers', (collection, n) => collection.map((collectionItem: any) => collectionItem + n));
-collection.unique(s => s.grade);
-collection.values();
-collection.where('age', 14);
-collection.where(stark => stark.age === 14);
-collection.zip(array);
+const collection = new Collection(collectable); // $ExpectType Collection
+
+collection.add(item); // $ExpectType Collection
+collection.all(); // $ExpectType Collection
+collection.average('age'); // $ExpectType number
+collection.chunk(2).all(); // $ExpectType Collection
+collection.collect(collectable); // $ExpectType Collection
+collection.concat(characters); // $ExpectType Collection
+collection.contains(stark => stark.name === 'John Snow'); // $ExpectType boolean
+collection.count(); // $ExpectType number
+collection.each(t => t = 3); // $ExpectType Collection
+collection.filter(stark => stark.age === 14); // $ExpectType Collection
+collection.find('bran'); // $ExpectType number
+collection.first(item => item.age > 7); // $ExpectType any
+collection.flatten(true); // $ExpectType Collection
+collection.get(2); // $ExpectType any
+collection.has({ name: 'Bran Stark', age: 7 }); // $ExpectType boolean
+collection.join(); // $ExpectType string
+collection.keys(); // $ExpectType Collection
+collection.last(); // $ExpectType any
+collection.map(stark => stark.name); // $ExpectType Collection
+collection.pluck('name'); // $ExpectType Collection
+collection.push({name: 'Robb Stark', age: 17}); // $ExpectType Collection
+collection.reduce((previous, current) => previous + current, 0); // $ExpectType any
+collection.reject(stark => stark.age < 14); // $ExpectType Collection
+collection.remove({name: 'Robb Stark', age: 17}); // $ExpectType boolean
+collection.reverse(); // $ExpectType Collection
+collection.skip(2); // $ExpectType Collection
+collection.slice(1, 3); // $ExpectType Collection
+collection.sort(); // $ExpectType Collection
+collection.sortBy('name'); // $ExpectType Collection
+collection.stringify(); // $ExpectType string
+collection.sum('age'); // $ExpectType any
+collection.take(2); // $ExpectType Collection
+collection.macro('addToMembers', (collection, n) => collection.map((collectionItem: any) => collectionItem + n)); // $ExpectType any
+collection.unique(s => s.grade); // $ExpectType Collection
+collection.values(); // $ExpectType Collection
+collection.where('age', 14); // $ExpectType Collection
+collection.where(stark => stark.age === 14); // $ExpectType Collection
+collection.zip(array); // $ExpectType Collection