Initialize tags as array and allow to set it as single value.

janfri · Apr 27, 2015 · 097cfa8 · 097cfa8
1 parent 9d45ea7
commit 097cfa8
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diff --git a/lib/multi_exiftool/reader.rb b/lib/multi_exiftool/reader.rb
@@ -15,6 +15,7 @@ class Reader
 
     def initialize
       super
+      @tags = []
     end
 
     def self.mandatory_args
@@ -50,6 +51,10 @@ def exiftool_args
 
     alias read execute # :nodoc:
 
+    def tags= value
+      @tags = Array(value)
+    end
+
     private
 
     def tags_args

diff --git a/test/test_reader.rb b/test/test_reader.rb
@@ -9,6 +9,19 @@ class TestReader < Test::Unit::TestCase
     @reader = MultiExiftool::Reader.new
   end
 
+  context 'tags' do
+
+    test 'tags are initialized as array' do
+      assert_equal [], @reader.tags
+    end
+
+    test 'tags could be set as single value' do
+      @reader.tags = 'fnumber'
+      assert_equal ['fnumber'], @reader.tags
+    end
+
+  end
+
   context 'exiftool_args method' do
 
     test 'simple case' do