0
@@ -1,9 +1,12 @@
0
 class Topic < ActiveRecord::Base
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+  
0
+  MAX_NAME = 70
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+  
0
   belongs_to :forum, :counter_cache => true
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   belongs_to :person
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   has_many :posts, :order => :created_at, :dependent => :destroy,
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                    :class_name => "ForumPost"
0
   
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   validates_presence_of :name, :forum, :person
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-  validates_length_of :name, :maximum => MAX_STRING_LENGTH
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+  validates_length_of :name, :maximum => MAX_NAME
0
 end

0
@@ -1,17 +1,23 @@
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 module CustomModelMatchers
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+  
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+  # Verify that a model instance has a maximum length on the given attribute.
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   class MaximumLength
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     def initialize(attribute, maxlength)
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       @attribute = attribute
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       @maxlength = maxlength
0
     end
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-    def matches?(target)
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-      @target = target
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-      !@target.new(@attribute => "a" * (@maxlength + 1)).valid?
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+    def matches?(model)
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+      @model = model
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+      just_right = model
0
+      too_long   = model.clone
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+      just_right.update_attributes(@attribute => "a" * 70)
0
+      too_long.update_attributes(@attribute => "a" * (@maxlength + 1))
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+      just_right.valid? and not too_long.valid?
0
     end
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     def failure_message
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-      "#{@target} #{@attribute} should have maximum length #{@maxlength}"
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+      "#{@model.to_s} #{@attribute} should have maximum length #{@maxlength}"
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     end
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   end
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@@ -3,9 +3,14 @@ require File.dirname(__FILE__) + '/../spec_helper'
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 describe BlogPostComment do
0
   include CustomModelMatchers
0
   
0
+  before(:each) do
0
+    @comment = BlogPostComment.new(:body => "Hey there", :post => posts(:blog),
0
+                                   :commenter => people(:aaron))
0
+    
0
+  end
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+  
0
   it "should be valid" do
0
-    BlogPostComment.new(:body => "Hey there", :post => posts(:blog),
0
-                        :commenter => people(:aaron)).should be_valid
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+    @comment.should be_valid
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   end
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0
   it "should require a body" do
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@@ -15,6 +20,6 @@ describe BlogPostComment do
0
   end
0
   
0
   it "should have a maximum body length" do
0
-    BlogPostComment.should have_maximum(:body, MAX_TEXT_LENGTH)
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+    @comment.should have_maximum(:body, MAX_TEXT_LENGTH)
0
   end
0
 end

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@@ -3,9 +3,13 @@ require File.dirname(__FILE__) + '/../spec_helper'
0
 describe ForumPost do
0
   include CustomModelMatchers
0
   
0
+  before(:each) do
0
+    @post = ForumPost.new(:body => "Hey there", :topic => topics(:one),
0
+                          :person => people(:quentin))
0
+  end
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+  
0
   it "should be valid" do
0
-    ForumPost.new(:body => "Hey there", :topic => topics(:one),
0
-                  :person => people(:quentin)).should be_valid
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+    @post.should be_valid
0
   end
0
   
0
   it "should require a body" do
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@@ -15,6 +19,6 @@ describe ForumPost do
0
   end
0
   
0
   it "should have a maximum body length" do
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-    ForumPost.should have_maximum(:body, MAX_TEXT_LENGTH)
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+    @post.should have_maximum(:body, MAX_TEXT_LENGTH)
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   end
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 end

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@@ -1,10 +1,14 @@
0
 require File.dirname(__FILE__) + '/../spec_helper'
0
 
0
 describe Topic do
0
+  
0
+  before(:each) do
0
+    @topic = Topic.new(:name => "A topic", :forum => forums(:one),
0
+                       :person => people(:quentin))
0
+  end
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0
   it "should be valid" do
0
-    Topic.new(:name => "A topic", :forum => forums(:one),
0
-              :person => people(:quentin)).should be_valid
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+    @topic.should be_valid
0
   end
0
   
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   it "should require a name" do
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@@ -14,7 +18,7 @@ describe Topic do
0
   end
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0
   it "should have a max name length" do
0
-    Topic.should have_maximum(:name, MAX_STRING_LENGTH)
0
+    @topic.should have_maximum(:name, Topic::MAX_NAME)
0
   end
0
   
0
   it "should have many posts" do

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@@ -3,9 +3,13 @@ require File.dirname(__FILE__) + '/../spec_helper'
0
 describe WallComment do
0
   include CustomModelMatchers
0
   
0
+  before(:each) do
0
+    @comment = WallComment.new(:body => "Hey there", :person => people(:quentin),
0
+                               :commenter => people(:aaron))
0
+  end
0
+  
0
   it "should be valid" do
0
-    WallComment.new(:body => "Hey there", :person => people(:quentin),
0
-                    :commenter => people(:aaron)).should be_valid
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+    @comment.should be_valid
0
   end
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0
   it "should require a body" do
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@@ -15,7 +19,7 @@ describe WallComment do
0
   end
0
   
0
   it "should have a maximum body length" do
0
-    WallComment.should have_maximum(:body, MAX_TEXT_LENGTH)
0
+    @comment.should have_maximum(:body, MAX_TEXT_LENGTH)
0
   end
0
 end
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