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@@ -98,6 +98,7 @@ module ThoughtBot # :nodoc:
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       def should_protect_attributes(*attributes)
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         get_options!(attributes)
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         klass = model_class
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+
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         attributes.each do |attribute|
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           attribute = attribute.to_sym
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           should "protect #{attribute} from mass updates" do
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@@ -382,7 +383,9 @@ module ThoughtBot # :nodoc:
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       #
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       def should_have_and_belong_to_many(*associations)
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         get_options!(associations)
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+
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         klass = model_class
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+
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         associations.each do |association|
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           should "should have and belong to many #{association}" do
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             assert klass.reflect_on_association(association), "#{klass.name} does not have any relationship to #{association}"

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@@ -44,7 +44,7 @@ module ThoughtBot # :nodoc:
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       #   assert_contains(['a', '1'], /not there/) => fails
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       def assert_contains(collection, x, extra_msg = "")
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         collection = [collection] unless collection.is_a?(Array)
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-        msg = "#{x.inspect} not found in #{collection.to_a.inspect} " + extra_msg
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+        msg = "#{x.inspect} not found in #{collection.to_a.inspect} #{extra_msg}"
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         case x
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         when Regexp: assert(collection.detect { |e| e =~ x }, msg)
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         else         assert(collection.include?(x), msg)