Validate nice values in the launchd resource

Make sure people give us proper nice values. Also the upper value is 19 not 20.

Signed-off-by: Tim Smith <tsmith@chef.io>

1 files changed, 8 insertions, 0 deletions

diff --git a/spec/unit/resource/launchd_spec.rb b/spec/unit/resource/launchd_spec.rb
index bf3fd39952..62f5ad0b92 100644
--- a/spec/unit/resource/launchd_spec.rb
+++ b/spec/unit/resource/launchd_spec.rb
@@ -37,4 +37,12 @@ describe Chef::Resource::Launchd do
     expect { resource.action :enable }.not_to raise_error
     expect { resource.action :restart }.not_to raise_error
   end
+
+  it "raises an error if nice is less than -20" do
+    expect { resource.nice(-21) }.to raise_error(Chef::Exceptions::ValidationFailed)
+  end
+
+  it "raises an error if nice is greater than 19" do
+    expect { resource.nice(20) }.to raise_error(Chef::Exceptions::ValidationFailed)
+  end
 end