diff --git a/testing_data/catFile1.txt b/testing_data/catFile1.txt
new file mode 100644
index 0000000..0651332
--- /dev/null
+++ b/testing_data/catFile1.txt
@@ -0,0 +1 @@
+Some simple text to see if it works
\ No newline at end of file
diff --git a/testing_data/catFile2.txt b/testing_data/catFile2.txt
new file mode 100644
index 0000000..e9d648e
--- /dev/null
+++ b/testing_data/catFile2.txt
@@ -0,0 +1 @@
+More data to see if it 100% works 
\ No newline at end of file
diff --git a/utils_test.go b/utils_test.go
index 7b3ba39..6d2de66 100644
--- a/utils_test.go
+++ b/utils_test.go
@@ -81,7 +81,7 @@ func TestCopyFileContents(t *testing.T) {
 }
 
 func TestCopyFile(t *testing.T) {
-	t.Run("Content copied successfully", func(t *testing.T) {
+	t.Run("Files copied successfully", func(t *testing.T) {
 		f1 := "testing_data/README.md"
 		f2 := "testing_data/CopyOfREADME.md"
 		err := CopyFile(f1, f2)
@@ -103,3 +103,17 @@ func TestCopyFile(t *testing.T) {
 		os.Remove(f2)
 	})
 }
+
+func TestCatFiles(t *testing.T) {
+	t.Run("CatFiles passing", func(t *testing.T) {
+		files := []string{"testing_data/catFile1.txt", "testing_data/catFile2.txt"}
+		err := CatFiles(files, "testing_data/CatFile.txt", false)
+		if err != nil {
+			t.Errorf("should pass with no error, got: %v", err)
+		}
+		if _, err := os.Stat("testing_data/CatFile.txt"); os.IsNotExist(err) {
+			t.Errorf("file were not created: %v", err)
+		}
+		os.Remove("testing_data/CatFile.txt")
+	})
+}