diff -r cba9fb39bcdb -r a38e6916504c spec/ezmlm/list/message_spec.rb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spec/ezmlm/list/message_spec.rb	Fri May 12 11:09:36 2017 -0700
@@ -0,0 +1,83 @@
+# vim: set nosta noet ts=4 sw=4 ft=rspec:
+
+require_relative '../../spec_helpers'
+
+
+describe Ezmlm::List::Message do
+
+	before( :all ) do
+		@listdir = make_listdir()
+	end
+
+	after( :all ) do
+		rm_r( @listdir )
+	end
+
+	let( :list ) do
+		Ezmlm::List.new( @listdir )
+	end
+
+
+	context 'instantiating' do
+
+		it 'raises error if provided an unknown list object' do
+			expect {
+				described_class.new( true, 1 )
+			}.to raise_error( ArgumentError, /unknown list/i )
+		end
+
+		it 'raises error if given a message number smaller than possible' do
+			expect {
+				described_class.new( list, -20 )
+			}.to raise_error( ArgumentError, /invalid message number \(impossible/i )
+			expect {
+				described_class.new( list, 0 )
+			}.to raise_error( ArgumentError, /invalid message number \(impossible/i )
+		end
+
+		it 'raises error if given a message higher than the list count' do
+			expect {
+				described_class.new( list, 200 )
+			}.to raise_error( ArgumentError, /invalid message number \(out of list/i )
+		end
+
+		it 'raises error when unable to read message' do
+			allow( list ).to receive( :listdir ).and_return( Pathname('/nope') )
+			expect( list ).to receive( :message_count ).and_return( 1 )
+			expect {
+				described_class.new( list, 1 )
+			}.to raise_error( RuntimeError, /unable to determine message path/i )
+		end
+
+		it 'parses a message from the archive' do
+			message = described_class.new( list, 1 )
+			expect( message ).to be_a( Ezmlm::List::Message )
+		end
+
+
+		context 'an instance of' do
+
+			let( :message ) { described_class.new( list, 1 ) }
+
+			it 'can be stringified' do
+				expect( message.to_s ).to match( /need to copy the wireless/ )
+			end
+
+			it 'knows what thread it is a member of' do
+				expect( message.thread ).to be_a( Ezmlm::List::Thread )
+				expect( message.thread.id ).to eq( 'dipjdfoipmjmlcnacell' )
+			end
+
+			it 'knows the author' do
+				expect( message.author ).to be_a( Ezmlm::List::Author )
+				expect( message.author.id ).to eq( 'odhojfifmnbblilkmbfh' )
+			end
+
+			it 'passes all other method calls to the underlying Mail::Message' do
+				expect( message.to.first ).to eq( 'testlist@lists.laika.com' )
+				expect( message.body.to_s ).to match( /need to copy the wireless/ )
+				expect( message.subject ).to match( /Trying to compress/ )
+			end
+		end
+	end
+end