From c6dd507f0f1a9ae46f2424b142a3615c54346499 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Julian=20G=C3=BCnther?= <julian.guenther@capgemini.com>
Date: Tue, 1 Dec 2020 09:56:02 +0100
Subject: [PATCH] new assertion directoryNotEmpty

---
 assertions/directoryNotEmpty.ts | 9 +++++++++
 assertions/index.ts             | 6 ++++++
 2 files changed, 15 insertions(+)
 create mode 100644 assertions/directoryNotEmpty.ts

diff --git a/assertions/directoryNotEmpty.ts b/assertions/directoryNotEmpty.ts
new file mode 100644
index 00000000..2b9c33e3
--- /dev/null
+++ b/assertions/directoryNotEmpty.ts
@@ -0,0 +1,9 @@
+import * as fs from "fs";
+
+export class DirectoryNotEmpty {
+    public static run(directory: string): void {
+        if(fs.readdirSync(directory).length == 0) {
+            throw new Error("directory " + directory + " is empty");
+        }
+    }
+}
\ No newline at end of file
diff --git a/assertions/index.ts b/assertions/index.ts
index e1607dbf..691dbfbb 100644
--- a/assertions/index.ts
+++ b/assertions/index.ts
@@ -5,6 +5,7 @@ import { NoErrorCode } from "./noErrorCode";
 import { NoException } from "./noException";
 import { DirectoryExist } from "./directoryExist";
 import { FileExist } from "./fileExist";
+import { DirectoryNotEmpty } from "./directoryNotEmpty";
 
 
 export class Assertions {
@@ -24,6 +25,11 @@ export class Assertions {
         return this;
     }
 
+    public directoryNotEmpty(directory: string): Assertions {
+        DirectoryNotEmpty.run(directory);
+        return this;
+    }
+
     public fileExits(filepath: string): Assertions {
         FileExist.run(filepath);
         return this;