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@@ -49,17 +49,20 @@ module CustomModelMatchers
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   # Verify that an action destroys an associated attribute.
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+  # Usage:
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+  #  @topic.should destroy_associated(:posts)
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+
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   class DestroyAssociated
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     def initialize(attribute)
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       @attribute = attribute
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     end
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-    def matches?(model)
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-      objects = model.send(@attribute)
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+    def matches?(parent)
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+      objects = parent.send(@attribute)
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       # Objects must exist in the first place.
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       raise ArgumentError, "Invalid initial association" unless found?(objects)
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-      model.destroy
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+      parent.destroy
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       not found?(objects)
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     end
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