fix guard and update monit binary version

recipes/install_binary.rb

@@ -27,6 +27,8 @@
     "cd #{File.basename(tar_file, ".tar.gz")}",
     "cp bin/monit #{node["monit"]["binary"]["prefix"]}/bin/monit"
   ].join(" && ")
+  not_if { ::File.exist?(binary) }
+  not_if "monit -V | grep #{node["monit"]["binary"]["version"]}"
   action :nothing
 end
 

spec/install_binary_spec.rb

@@ -1,16 +1,16 @@
 require "spec_helper"
 
 describe "monit::install_binary" do
-  let(:monit_tarball) { "/var/chef/cache/monit-5.12.2.tar.gz" }
+  let(:monit_tarball) { "/var/chef/cache/monit-5.13.tar.gz" }
 
   let(:install_binary_command) do
-    "tar zxvf monit-5.12.2.tar.gz && cd monit-5.12.2 && cp bin/monit /usr/bin/monit" # rubocop:disable Metrics/LineLength
+    "tar zxvf monit-5.13.tar.gz && cd monit-5.13 && cp bin/monit /usr/bin/monit" # rubocop:disable Metrics/LineLength
   end
 
   describe "when binary is not found" do
     let(:chef_run) do
       ChefSpec::SoloRunner.new(file_cache_path: "/var/chef/cache") do |node|
-        node.set["monit"]["binary"]["version"] = "5.12.2"
+        node.set["monit"]["binary"]["version"] = "5.13"
         node.set["monit"]["binary"]["prefix"] = "/usr"
       end.converge(described_recipe)
     end
@@ -37,7 +37,7 @@
   describe "when binary is found and installing a different version" do
     let(:chef_run) do
       ChefSpec::SoloRunner.new(file_cache_path: "/var/chef/cache") do |node|
-        node.set["monit"]["binary"]["version"] = "5.12.2"
+        node.set["monit"]["binary"]["version"] = "5.13"
         node.set["monit"]["binary"]["prefix"] = "/usr"
       end.converge(described_recipe)
     end
@@ -46,8 +46,8 @@
       allow(::File).to receive(:exist?).and_call_original
       allow(::File).to receive(:exist?).with("/usr/bin/monit").and_return(true)
 
-      # example: 5.12.1 was installed
-      stub_command("monit -V | grep 5.12.2").and_return(false)
+      # example: 5.12.2 was installed
+      stub_command("monit -V | grep 5.13").and_return(false)
 
       expect(chef_run).to run_execute("rm /usr/bin/monit")
       remove_existing_binary = chef_run.execute("rm /usr/bin/monit")
@@ -77,17 +77,17 @@
   describe "when binary is found and installing the same version" do
     let(:chef_run) do
       ChefSpec::SoloRunner.new(file_cache_path: "/var/chef/cache") do |node|
-        node.set["monit"]["binary"]["version"] = "5.12.2"
+        node.set["monit"]["binary"]["version"] = "5.13"
         node.set["monit"]["binary"]["prefix"] = "/usr"
       end.converge(described_recipe)
     end
 
     specify do
       allow(::File).to receive(:exist?).and_call_original
       allow(::File).to receive(:exist?).with("/usr/bin/monit").and_return(true)
-      stub_command("monit -V | grep 5.12.2").and_return(true)
+      stub_command("monit -V | grep 5.13").and_return(true)
 
-      expect(chef_run).not_to run_execute("rm /usr/bin/monit")
+      expect(chef_run).to_not run_execute("rm /usr/bin/monit")
 
       expect(chef_run).to_not(
         run_execute("install-monit-binary").with(