raise an exception when align value is invalid

prawnpdf · May 30, 2018 · 2cdd2e7 · 2cdd2e7
1 parent e615f00
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diff --git a/lib/prawn/text/formatted/box.rb b/lib/prawn/text/formatted/box.rb
@@ -269,6 +269,9 @@ def draw_fragment(
                 else
                   @at[0] + @width - line_width
                 end
+          else
+            raise ArgumentError,
+              'align must be one of :left, :right, :center or :justify symbols'
           end
 
           x += accumulated_width

diff --git a/spec/prawn/text/formatted/box_spec.rb b/spec/prawn/text/formatted/box_spec.rb
@@ -742,6 +742,20 @@
       contents = PDF::Inspector::Text.analyze(pdf.render)
       expect(contents.word_spacing).to be_empty
     end
+
+    it 'raise an exception when align value is not a symbol' do
+      array = [
+        { text: 'hello world ' },
+        { text: "\n" },
+        { text: 'goodbye' }
+      ]
+      options = { document: pdf, align: 'justify' }
+      text_box = described_class.new(array, options)
+      expect { text_box.render }.to raise_error(
+        ArgumentError,
+        'align must be one of :left, :right, :center or :justify symbols'
+      )
+    end
   end
 
   describe 'Text::Formatted::Box#render with :valign => :center' do