Status helper

lib/cryptcheck.rb

@@ -31,6 +31,7 @@ module CryptCheck
 		end
 	end
 
+	autoload :Status, 'cryptcheck/status'
 	autoload :Logger, 'cryptcheck/logger'
 	autoload :Tls, 'cryptcheck/tls'
 	module Tls

lib/cryptcheck/status.rb

@@ -0,0 +1,28 @@
+module CryptCheck
+	module Status
+		LEVELS = %i(critical error warning good perfect best).freeze
+		PROBLEMS = %i(critical error warning).freeze
+
+		def self.status(statuses)
+			statuses = self.collect statuses
+			self.select LEVELS, statuses
+		end
+
+		def self.problem(statuses)
+			statuses = self.collect statuses
+			self.select PROBLEMS, statuses
+		end
+
+		private
+		def self.collect(statuses)
+			first = statuses.first
+			statuses = statuses.collect &:status if first.respond_to? :status
+			statuses
+		end
+
+		def self.select(levels, statuses)
+			return nil if statuses.empty?
+			(levels & statuses).first
+		end
+	end
+end

spec/cryptcheck/status_spec.rb

@@ -0,0 +1,121 @@
+require 'ostruct'
+
+describe CryptCheck::Status do
+	describe '::status' do
+		it 'must handle empty list' do
+			expect(CryptCheck::Status.status []).to be_nil
+		end
+
+		it 'must answer correctly' do
+			{
+					[:critical, :critical] => :critical,
+					[:critical, :error]    => :critical,
+					[:critical, :warning]  => :critical,
+					[:critical, :good]     => :critical,
+					[:critical, :perfect]  => :critical,
+					[:critical, :best]     => :critical,
+
+					[:error, :critical]    => :critical,
+					[:error, :error]       => :error,
+					[:error, :warning]     => :error,
+					[:error, :good]        => :error,
+					[:error, :perfect]     => :error,
+					[:error, :best]        => :error,
+
+					[:warning, :critical]  => :critical,
+					[:warning, :error]     => :error,
+					[:warning, :warning]   => :warning,
+					[:warning, :good]      => :warning,
+					[:warning, :perfect]   => :warning,
+					[:warning, :best]      => :warning,
+
+					[:good, :critical]     => :critical,
+					[:good, :error]        => :error,
+					[:good, :warning]      => :warning,
+					[:good, :good]         => :good,
+					[:good, :perfect]      => :good,
+					[:good, :best]         => :good,
+
+					[:perfect, :critical]  => :critical,
+					[:perfect, :error]     => :error,
+					[:perfect, :warning]   => :warning,
+					[:perfect, :good]      => :good,
+					[:perfect, :perfect]   => :perfect,
+					[:perfect, :best]      => :perfect,
+
+					[:best, :critical]     => :critical,
+					[:best, :error]        => :error,
+					[:best, :warning]      => :warning,
+					[:best, :good]         => :good,
+					[:best, :perfect]      => :perfect,
+					[:best, :best]         => :best
+			}.each do |levels, result|
+				got = CryptCheck::Status.status levels
+				expect(got).to be(result), "#{levels} : expected #{result.inspect}, got #{got.inspect}"
+			end
+		end
+
+		it 'must handle object list' do
+			critical = OpenStruct.new status: :critical
+			warning  = OpenStruct.new status: :warning
+			expect(CryptCheck::Status.status [critical, warning]).to be :critical
+		end
+	end
+
+	describe '::problem' do
+		it 'must answer correctly' do
+			{
+					[:critical, :critical] => :critical,
+					[:critical, :error]    => :critical,
+					[:critical, :warning]  => :critical,
+					[:critical, :good]     => :critical,
+					[:critical, :perfect]  => :critical,
+					[:critical, :best]     => :critical,
+
+					[:error, :critical]    => :critical,
+					[:error, :error]       => :error,
+					[:error, :warning]     => :error,
+					[:error, :good]        => :error,
+					[:error, :perfect]     => :error,
+					[:error, :best]        => :error,
+
+					[:warning, :critical]  => :critical,
+					[:warning, :error]     => :error,
+					[:warning, :warning]   => :warning,
+					[:warning, :good]      => :warning,
+					[:warning, :perfect]   => :warning,
+					[:warning, :best]      => :warning,
+
+					[:good, :critical]     => :critical,
+					[:good, :error]        => :error,
+					[:good, :warning]      => :warning,
+					[:good, :good]         => nil,
+					[:good, :perfect]      => nil,
+					[:good, :best]         => nil,
+
+					[:perfect, :critical]  => :critical,
+					[:perfect, :error]     => :error,
+					[:perfect, :warning]   => :warning,
+					[:perfect, :good]      => nil,
+					[:perfect, :perfect]   => nil,
+					[:perfect, :best]      => nil,
+
+					[:best, :critical]     => :critical,
+					[:best, :error]        => :error,
+					[:best, :warning]      => :warning,
+					[:best, :good]         => nil,
+					[:best, :perfect]      => nil,
+					[:best, :best]         => nil
+			}.each do |levels, result|
+				got = CryptCheck::Status.problem levels
+				expect(got).to be(result), "#{levels} : expected #{result.inspect}, got #{got.inspect}"
+			end
+		end
+
+		it 'must handle object list' do
+			critical = OpenStruct.new status: :critical
+			warning  = OpenStruct.new status: :warning
+			expect(CryptCheck::Status.problem [critical, warning]).to be :critical
+		end
+	end
+end