diff --git a/plugins/mezuro/lib/kalibro/range_snapshot.rb b/plugins/mezuro/lib/kalibro/range_snapshot.rb
new file mode 100644
index 0000000..2b16020
--- /dev/null
+++ b/plugins/mezuro/lib/kalibro/range_snapshot.rb
@@ -0,0 +1,5 @@
+class Kalibro::RangeSnapshot < Kalibro::Model
+
+  attr_accessor :end, :label, :grade, :color, :comments
+
+end
diff --git a/plugins/mezuro/test/fixtures/native_metric_fixtures.rb b/plugins/mezuro/test/fixtures/native_metric_fixtures.rb
deleted file mode 100644
index 809bcc1..0000000
--- a/plugins/mezuro/test/fixtures/native_metric_fixtures.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-class NativeMetricFixtures
-
-  def self.total_cof
-    Kalibro::NativeMetric.new total_cof_hash
-  end
-
-  def self.total_cof_hash
-    {:name => 'Total Coupling Factor', :scope => 'APPLICATION', :origin => 'Analizo', :language => ['JAVA']}
-  end
-
-  def self.amloc
-    Kalibro::NativeMetric.new amloc_hash
-  end
-
-  def self.amloc_hash
-    {:name => 'Average Method LOC', :scope => 'CLASS', :origin => 'Analizo', :language => ['JAVA']}
-  end
-
-end
diff --git a/plugins/mezuro/test/fixtures/range_snapshot_fixtures.rb b/plugins/mezuro/test/fixtures/range_snapshot_fixtures.rb
new file mode 100644
index 0000000..76b7ee1
--- /dev/null
+++ b/plugins/mezuro/test/fixtures/range_snapshot_fixtures.rb
@@ -0,0 +1,11 @@
+class RangeSnapshotFixtures
+
+  def self.range_snapshot
+    Kalibro::RangeSnapshot.new range_snapshot_hash
+  end
+
+  def self.range_snapshot_hash
+    { :end => 5, :label => "snapshot", :grade => 10, :color => "FF2284", :comments => "comment" }
+	end
+
+end
diff --git a/plugins/mezuro/test/unit/kalibro/range_snapshot_test.rb b/plugins/mezuro/test/unit/kalibro/range_snapshot_test.rb
new file mode 100644
index 0000000..09c3ebb
--- /dev/null
+++ b/plugins/mezuro/test/unit/kalibro/range_snapshot_test.rb
@@ -0,0 +1,20 @@
+require "test_helper"
+
+require "#{RAILS_ROOT}/plugins/mezuro/test/fixtures/range_snapshot_fixtures"
+
+class RangeSnapshotTest < ActiveSupport::TestCase
+
+  def setup
+    @hash = RangeSnapshotFixtures.range_snapshot_hash
+    @range_snapshot = RangeSnapshotFixtures.range_snapshot
+  end
+
+  should 'create range_snapshot from hash' do
+    assert_equal @hash[:comments], Kalibro::RangeSnapshot.new(@hash).comments
+  end
+
+  should 'convert range_snapshot to hash' do
+    assert_equal @hash, @range_snapshot.to_hash
+  end
+
+end
--
libgit2 0.21.2