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@@ -56,9 +56,9 @@ module ThoughtBot # :nodoc:
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           should stmt, :before => before do
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             old_value = @_before_should_change
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             new_value = expression_eval.bind(self).call
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-            assert_equal from, old_value, "#{expression.inspect} was not originally #{from.inspect}" if from
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+            assert_operator from, :===, old_value, "#{expression.inspect} did not originally match #{from.inspect}" if from
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             assert_not_equal old_value, new_value, "#{expression.inspect} did not change" unless by == 0
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-            assert_equal to, new_value, "#{expression.inspect} was not changed to #{to.inspect}" if to
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+            assert_operator to, :===, new_value, "#{expression.inspect} was not changed to match #{to.inspect}" if to
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             assert_equal old_value + by, new_value if by
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           end
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         end

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@@ -78,9 +78,9 @@ class HelpersTest < Test::Unit::TestCase # :nodoc:
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     end
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   end
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-  context "an array of numbers" do
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+  context "an array of values" do
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     setup do
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-      @a = [1, 2, 3]
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+      @a = [1, 2, "(3)"]
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     end
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     context "after adding another value" do
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@@ -104,8 +104,8 @@ class HelpersTest < Test::Unit::TestCase # :nodoc:
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       should_change "@a.length", :from => 3, :to => 6, :by => 3
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       should_change "@a[0]"
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       should_change "@a[1]", :from => 2, :to => "b"
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-      should_change "@a[2]", :from => 3
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-      should_change "@a[3]", :to => "d"
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+      should_change "@a[2]", :from => /\d/, :to => /\w/
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+      should_change "@a[3]", :to => String
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     end
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   end
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 end