Add a couple tests for annotations

test/tests/test_annotations.rb

+require 'tempfile'
+
+class AnnotationTests < Test::Unit::TestCase
+  TEST_APP = "#{TEST_PATH}/apps/rails2"
+
+  def with_temp_file name
+    annotation_file = Tempfile.new name
+    annotation_file.close
+
+    yield annotation_file
+
+    annotation_file.unlink
+  end
+
+  def test_annotations_with_format
+    with_temp_file 'annotation' do |file|
+
+      original_report = Brakeman.run(:app_path => TEST_APP,
+                                     :output_format => :annotations,
+                                     :output_files => [file.path])
+
+      ignored_report = Brakeman.run(:app_path => TEST_APP,
+                                    :annotations_file => file.path)
+
+      assert_equal 0, ignored_report.checks.all_warnings.length
+    end
+  end
+
+  def test_annotations_with_file
+    with_temp_file ['annotation', '.annotations'] do |file|
+
+      original_report = Brakeman.run(:app_path => TEST_APP,
+                                     :output_files => [file.path])
+
+      ignored_report = Brakeman.run(:app_path => TEST_APP,
+                                    :annotations_file => file.path)
+
+      assert_equal 0, ignored_report.checks.all_warnings.length
+    end
+  end
+end