Coerce mount_point only when it is not root directory

Signed-off-by: JiSoo Kim <jskim910118@gmail.com>

2 files changed, 11 insertions, 1 deletions

diff --git a/lib/chef/resource/mount.rb b/lib/chef/resource/mount.rb
index e46abead13..e43306fa6c 100644
--- a/lib/chef/resource/mount.rb
+++ b/lib/chef/resource/mount.rb
@@ -42,7 +42,7 @@ class Chef
         sensitive: true
 
       property :mount_point, String, name_property: true,
-               coerce: proc { |arg| arg.chomp("/") }, # Removed "/" from the end of str, because it was causing idempotency issue.
+               coerce: proc { |arg| (arg == "/" || arg.match?(":/$"))? arg : arg.chomp("/") }, # Removed "/" from the end of str, because it was causing idempotency issue.
                description: "The directory (or path) in which the device is to be mounted. Defaults to the name of the resource block if not provided."
 
       property :device, String, identity: true,
diff --git a/spec/unit/resource/mount_spec.rb b/spec/unit/resource/mount_spec.rb
index c9800f1381..1e1c36a5dd 100644
--- a/spec/unit/resource/mount_spec.rb
+++ b/spec/unit/resource/mount_spec.rb
@@ -59,6 +59,16 @@ describe Chef::Resource::Mount do
     expect(resource.mount_point).to eql("//192.168.11.102/Share/backup")
   end
 
+  it "does not strip slash when mount_point is root directory" do
+    resource.mount_point "/"
+    expect(resource.mount_point).to eql("/")
+  end
+
+  it "does not strip slash when mount_point is root of network mount" do
+    resource.mount_point "127.0.0.1:/"
+    expect(resource.mount_point).to eql("127.0.0.1:/")
+  end
+
   it "raises error when mount_point property is not set" do
     expect { resource.mount_point nil }.to raise_error(Chef::Exceptions::ValidationFailed, "Property mount_point must be one of: String!  You passed nil.")
   end