more updates for setting output

spec/concerns/output_writer_spec.rb

@@ -12,15 +12,16 @@ RSpec.describe OutputWriter do
   describe "#set_output" do
     let(:name) { "var_name" }
     let(:value) { "var_value" }
+    let(:output) { "#{name}=#{value}" }
 
     subject { test_class.set_output(name, value) }
 
-    it { expect { subject }.to output(/::set-output name=#{name}::#{value}/).to_stdout }
+    it { expect { subject }.to change { File.readlines(ENV["GITHUB_OUTPUT"], chomp: true).last }.to(/#{output}/) }
 
     context "when value is nil" do
       let(:value) { nil }
 
-      it { expect { subject }.not_to output(/::set-output name=#{name}::#{value}/).to_stdout }
+      it { expect { subject }.not_to change { File.read(ENV["GITHUB_OUTPUT"], chomp: true).last } }
     end
   end
 end

spec/models/command_spec.rb

@@ -104,6 +104,6 @@ RSpec.describe Command do
       COMMENT
     end
 
-    it { expect { subject }.to output(/::set-output name=command::audit/).to_stdout }
+    it { expect { subject }.to change { File.readlines(ENV["GITHUB_OUTPUT"], chomp: true).last }.to("command=audit") }
   end
 end

spec/models/provider_spec.rb

@@ -52,6 +52,12 @@ RSpec.describe Provider do
 
       it { expect { subject }.not_to raise_error }
     end
+
+    context "when a provider is a quoted string" do
+      let(:labels) { "[ \"jenkins\" ]" }
+
+      it { expect { subject }.not_to raise_error }
+    end
   end
 
   describe "#cli_command" do
@@ -92,6 +98,6 @@ RSpec.describe Provider do
       LABELS
     end
 
-    it { expect { subject }.to output(/::set-output name=provider::azure-devops/).to_stdout }
+    it { expect { subject }.to change { File.readlines(ENV["GITHUB_OUTPUT"], chomp: true).last }.to("provider=azure-devops") }
   end
 end

spec/spec_helper.rb

@@ -3,6 +3,7 @@
 require "bundler/setup"
 require "factory_bot"
 require "faker"
+require "fileutils"
 
 require_relative "./../cli"
 
@@ -25,5 +26,12 @@ RSpec.configure do |config|
 
   config.before(:suite) do
     FactoryBot.find_definitions
+    Dir.mkdir("tmp") unless Dir.exist?("tmp")
+    FileUtils.touch "tmp/test.txt"
+    ENV["GITHUB_OUTPUT"] = "tmp/test.txt"
+  end
+
+  config.after(:suite) do
+    File.delete("tmp/test.txt")
   end
 end