start backend and file tests

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>

lib/vulcano/plugins/backend.rb

@@ -22,7 +22,7 @@ module Vulcano::Plugins
       }
 
       def type
-        :unkown
+        :unknown
       end
 
       # The following methods can be overwritten by a derived class
@@ -36,7 +36,7 @@ module Vulcano::Plugins
 
       def sha256sum
         res = Digest::SHA256.new
-        res.update(@file.content)
+        res.update(content)
         res.hexdigest
       end
 

test/unit/plugins_v1_backend_file_test.rb

@@ -0,0 +1,34 @@
+require 'helper'
+
+describe 'Vulcano::Plugins::Backend::FileCommon' do
+  before do
+    @backend = Vulcano::Plugins::Backend::FileCommon
+    @test = @backend.new
+  end
+
+  it 'default type is :unkown' do
+    @test.type.must_equal :unknown
+  end
+
+  describe 'with non-empty content' do
+    before do
+      @content = 'Hello World'
+      @test = Class.new(@backend) do
+        def content; 'Hello World'; end
+      end.new
+    end
+
+    it 'must return raw content' do
+      @test.content.must_equal @content
+    end
+
+    it 'must calculate the md5sum of content' do
+      @test.md5sum.must_equal 'b10a8db164e0754105b7a99be72e3fe5'
+    end
+
+    it 'must calculate the sha256sum of content' do
+      @test.sha256sum.must_equal 'a591a6d40bf420404a011733cfb7b190d62c65bf0bcda32b57b277d9ad9f146e'
+    end
+  end
+
+end

test/unit/plugins_v1_backend_test.rb

@@ -0,0 +1,19 @@
+require 'helper'
+
+describe 'Vulcano::Plugins::Backend' do
+  before do
+    @backend = Vulcano::Plugins::Backend
+    @child = Class.new(@backend)
+  end
+
+  it 'provides a name method for registering' do
+    @child.must_respond_to :name
+    @child.name 'test'
+    # check if it's there
+    reg = Vulcano::Backend.registry
+    reg.keys.must_include 'test'
+    reg['test'].must_equal @child
+    # cleanup
+    reg.delete('test')
+  end
+end