backend-test-utils: added content option for createMockDirectory

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/backend-test-utils/api-report.md

@@ -65,6 +65,7 @@ export interface MockDirectoryContentOptions {
 
 // @public
 export interface MockDirectoryOptions {
+  content?: MockDirectoryContent;
   mockOsTmpDir?: boolean;
 }
 

packages/backend-test-utils/src/filesystem/MockDirectory.ts

@@ -314,6 +314,11 @@ export interface MockDirectoryOptions {
    * @returns
    */
   mockOsTmpDir?: boolean;
+
+  /**
+   * Initializes the directory with the given content, see {@link MockDirectory.setContent}.
+   */
+  content?: MockDirectoryContent;
 }
 
 /**
@@ -370,5 +375,9 @@ export function createMockDirectory(
     /* ignore */
   }
 
+  if (options?.content) {
+    mocker.setContent(options.content);
+  }
+
   return mocker;
 }