diff --git a/core-java-8/pom.xml b/core-java-8/pom.xml
index 8c9bb36f7d..63df0e1b95 100644
--- a/core-java-8/pom.xml
+++ b/core-java-8/pom.xml
@@ -66,7 +66,8 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.4.1</version>
+            <version>3.5.1</version>
+            <scope>test</scope>
         </dependency>
 
         <dependency>
diff --git a/core-java-8/src/test/java/com/baeldung/collectors/Java8CollectorsTest.java b/core-java-8/src/test/java/com/baeldung/collectors/Java8CollectorsTest.java
new file mode 100644
index 0000000000..bfcdf27a9c
--- /dev/null
+++ b/core-java-8/src/test/java/com/baeldung/collectors/Java8CollectorsTest.java
@@ -0,0 +1,76 @@
+package com.baeldung.collectors;
+
+import org.junit.Test;
+
+public class Java8CollectorsTest {
+
+    @Test
+    public void whenCollectingToList_shouldCollectToList() throws Exception {
+
+    }
+
+    @Test
+    public void whenCollectingToList_shouldCollectToSet() throws Exception {
+
+    }
+
+    @Test
+    public void whenCollectingToCollection_shouldCollectToCollection() throws Exception {
+
+    }
+
+    @Test
+    public void whenCollectingToImmutableCollection_shouldThrowException() throws Exception {
+
+    }
+
+    @Test
+    public void whenCollectingToMap_shouldCollectToMap() throws Exception {
+
+    }
+
+    @Test
+    public void whenCollectingAndThen_shouldCollect() throws Exception {
+
+    }
+
+    @Test
+    public void whenJoining_shouldJoin() throws Exception {
+
+    }
+
+    @Test
+    public void whenPartitioningBy_shouldPartition() throws Exception {
+
+    }
+
+    @Test
+    public void whenCounting_shouldCount() throws Exception {
+
+    }
+
+    @Test
+    public void whenSummarizing_shouldSummarize() throws Exception {
+
+    }
+
+    @Test
+    public void whenAveraging_shouldAverage() throws Exception {
+
+    }
+
+    @Test
+    public void whenSumming_shouldSum() throws Exception {
+
+    }
+
+    @Test
+    public void whenMaxingBy_shouldMaxBy() throws Exception {
+
+    }
+
+    @Test
+    public void whenCreatingCustomCollector_shouldCollect() throws Exception {
+
+    }
+}