test/lib/vedeu/output/foreground_test.rb in vedeu-0.0.7 vs test/lib/vedeu/output/foreground_test.rb in vedeu-0.0.8

@@ -1,10 +1,47 @@
 require_relative '../../../test_helper'
 
 module Vedeu
   describe Foreground do
     let(:described_class)    { Foreground }
-    let(:instance) { described_class.new }
+    let(:described_instance) { described_class.new(colour) }
+    let(:colour)             {}
 
-    it { instance.must_be_instance_of(Foreground) }
+    it { described_instance.must_be_instance_of(Foreground) }
+
+    describe '#escape_sequence' do
+      let(:subject) { described_instance.escape_sequence }
+
+      it { subject.must_be_instance_of(String) }
+
+      context 'with no colour' do
+        it { subject.must_be_instance_of(String) }
+
+        it { subject.must_equal("\e[38;5;39m") }
+      end
+
+      context 'with a named colour' do
+        let(:colour) { :red }
+
+        it { subject.must_be_instance_of(String) }
+
+        it { subject.must_equal("\e[38;5;31m") }
+      end
+
+      context 'with a html colour' do
+        let(:colour) { '#aadd00' }
+
+        it { subject.must_be_instance_of(String) }
+
+        it { subject.must_equal("\e[38;5;148m") }
+      end
+
+      context 'with a default colour' do
+        let(:colour) { :undefined }
+
+        it { subject.must_be_instance_of(String) }
+
+        it { subject.must_equal("\e[38;5;39m") }
+      end
+    end
   end
 end