Added spec for author_list.

Rakefile

@@ -4,8 +4,8 @@ require "bundler/gem_tasks"
 require 'rake/testtask'
 
 Rake::TestTask.new do |t|
-	t.warning = true
-	t.verbose = true
+	#t.warning = true
+	#t.verbose = true
 	t.libs << "spec"
 	t.test_files = FileList['spec/**/*_spec.rb']
 end

lib/timecost/author_list.rb

@@ -1,24 +1,34 @@
 
+require 'pp'
+
 module TimeCost
 	class AuthorList
+		class UnknownAuthor < RuntimeError ; end
+
 		# Prepare an empty index (local)
 		def initialize
 			@count = 0
-			@store = {}
+			@author_to_id = {}
 		end
 
-		# Return local user id for git user
-		# FIXME: should handle multiple names for same user
-		def parse gitauthor
-			invert_store = @store.invert
-			result = 0
-			if invert_store.include? gitauthor then
-				result = invert_store[gitauthor]
+		def add author
+			if @author_to_id.include? author then
+				result = @author_to_id[author]
 			else
-				@store[gitauthor] = @count
+				@author_to_id[author] = @count
 				result = @count
 				@count += 1
 			end
 		end
+
+		def alias author_ref, author_new
+			raise UnknownAuthor unless @author_to_id.include? author_ref
+		end
+
+		# Return local user id for git user
+		# FIXME: should handle multiple names for same user
+		def parse author
+			return @author_to_id[author]
+		end
 	end
 end

spec/author_list_spec.rb

@@ -3,8 +3,51 @@
 require_relative 'spec_helper'
 require 'minitest/spec'
 
-describe "simple failing test" do
-	it "fails" do
-		assert 1 < 0
+require 'timecost'
+
+describe TimeCost::AuthorList do
+	let(:author_list) { TimeCost::AuthorList.new }
+	let(:author_first) { "foo@example.com" }
+	let(:author_second) { "bar@example.com" }
+
+	describe '.new' do
+		it "can be created without arguments" do
+			assert_instance_of TimeCost::AuthorList, author_list
+		end
+	end
+
+	describe '.add' do
+		it "must accept adding authors" do
+			assert_respond_to author_list, :add
+
+			author_list.add "foo@example.com"
+			author_list.add "bar@example.com"
+		end
+
+		it "must assign a different id to different authors" do
+			author_list.add "foo@example.com"
+			author_list.add "bar@example.com"
+			id_foo = author_list.parse "foo@example.com"
+			id_bar = author_list.parse "bar@example.com"
+			refute_equal id_foo, id_bar
+		end
+	end
+
+	describe '.alias' do
+		it "must accept aliases for authors" do 
+			assert_respond_to author_list, :alias
+
+			author_list.add author_first
+			author_list.alias author_first, author_second 
+		end
+
+		it "must assign the same id to aliases authors" do
+			author_list.add author_first
+			author_list.alias author_first, author_second
+
+			id_foo = author_list.parse author_first
+			id_bar = author_list.parse author_second
+			refute_equal id_foo, id_bar
+		end
 	end
 end