From 4ac87bc5604357802432cbb7c812c9354b608f09 Mon Sep 17 00:00:00 2001
From: Kazuho CryerShinozuka <malaysia.cryer@gmail.com>
Date: Wed, 27 Dec 2023 13:46:45 +0900
Subject: [PATCH] test: unit test

---
 .../aws-efs/test/efs-file-system.test.ts      | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/packages/aws-cdk-lib/aws-efs/test/efs-file-system.test.ts b/packages/aws-cdk-lib/aws-efs/test/efs-file-system.test.ts
index 0eef8d4de9192..e357e488fd7f1 100644
--- a/packages/aws-cdk-lib/aws-efs/test/efs-file-system.test.ts
+++ b/packages/aws-cdk-lib/aws-efs/test/efs-file-system.test.ts
@@ -874,4 +874,32 @@ test('anonymous access is prohibited by the @aws-cdk/aws-efs:denyAnonymousAccess
       ],
     },
   });
+});
+
+test('specify availabilityZoneName to create mount targets in a specific AZ', () => {
+  // WHEN
+  new FileSystem(stack, 'EfsFileSystem', {
+    vpc,
+    availabilityZoneName: 'us-east-1a',
+  });
+
+  // THEN
+  console.log(JSON.stringify(Template.fromStack(stack).toJSON()));
+  Template.fromStack(stack).hasResourceProperties('AWS::EFS::FileSystem', {
+    AvailabilityZoneName: 'us-east-1a',
+  });
+  // mount target should be created only 1
+  Template.fromStack(stack).resourceCountIs('AWS::EFS::MountTarget', 1);
+  Template.fromStack(stack).hasResourceProperties('AWS::EFS::MountTarget', {
+    AvailabilityZoneId: {
+      'Fn::Select': [
+        0,
+        {
+          'Fn::GetAZs': {
+            Ref: 'AWS::Region',
+          },
+        },
+      ],
+    },
+  });
 });
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