Added validate_exact_length_matcher_spec however specs aren't working…

… together

lib/rspec_sequel/matchers/validate_exact_length.rb

@@ -0,0 +1,25 @@
+module RspecSequel
+  module Matchers
+
+    class ValidateExactLengthMatcher < RspecSequel::Validation
+      def description
+        desc = "validate exact length of #{@attribute.inspect} to #{@additionnal.inspect}"
+        desc << " with #{hash_to_nice_string @options}" unless @options.empty?
+        desc
+      end
+
+      def additionnal_param_type
+        Fixnum
+      end
+
+      def validation_type
+        :validates_exact_length
+      end
+    end
+
+    def validate_exact_length(*args)
+      ValidateExactLengthMatcher.new(*args)
+    end
+
+  end
+end

lib/rspec_sequel/validation.rb

@@ -43,6 +43,7 @@ def valid?(db, i, c, attribute, options)
       # check validation itself
       called_count = 0
       i = i.dup
+      i.class.columns # ensure colums are read again after .dup
       i.stub!(validation_type).and_return{|*args|
         called_options = args.last.is_a?(Hash) ? args.pop : {}
         called_additionnal = args.shift if additionnal_param_required?

spec/validate_exact_length_matcher_spec.rb

@@ -0,0 +1,83 @@
+require File.dirname(__FILE__) + "/spec_helper"
+
+class Item < Sequel::Model
+  def validate
+    validates_exact_length 4, :name, :allow_nil => true
+  end
+end
+
+describe "validate_exact_length_matcher" do
+
+  subject{ Item }
+
+  describe "arguments" do
+    it "should require attribute" do
+      lambda{
+        @matcher = validate_exact_length
+      }.should raise_error(ArgumentError)
+    end
+    it "should require additionnal parameters" do
+      lambda{
+        @matcher = validate_exact_length :name
+      }.should raise_error(ArgumentError)
+    end
+    it "should refuse invalid additionnal parameters" do
+      lambda{
+        @matcher = validate_exact_length :id, :name
+      }.should raise_error(ArgumentError)
+    end
+    it "should accept valid additionnal parameters" do
+      lambda{
+        @matcher = validate_exact_length 4, :name
+      }.should_not raise_error(ArgumentError)
+    end
+  end
+
+  describe "messages" do
+    describe "without option" do
+      it "should contain a description" do
+        @matcher = validate_exact_length 4, :name
+        @matcher.description.should == "validate exact length of :name to 4"
+      end
+      it "should set failure messages" do
+        @matcher = validate_exact_length 4, :name
+        @matcher.matches? subject
+        @matcher.failure_message.should == "expected Item to validate exact length of :name to 4"
+        @matcher.negative_failure_message.should == @matcher.failure_message.gsub("to validate", "to not validate")
+      end
+    end
+    describe "with options" do
+      it "should contain a description" do
+        @matcher = validate_exact_length 4, :name, :allow_nil => true
+        @matcher.description.should == "validate exact length of :name to 4 with :allow_nil => true"
+      end
+      it "should set failure messages" do
+        @matcher = validate_exact_length 4, :price, :allow_nil => true
+        @matcher.matches? subject
+        @matcher.failure_message.should == "expected Item to validate exact length of :price to 4 with :allow_nil => true"
+        @matcher.negative_failure_message.should == @matcher.failure_message.gsub("to validate", "to not validate")
+      end
+      it "should explicit used options if different than expected" do
+        @matcher = validate_exact_length 4, :name, :allow_blank => true
+        @matcher.matches? subject
+        @matcher.failure_message.should == "expected Item to validate exact length of :name to 4 with :allow_blank => true but called with option(s) :allow_nil => true instead"
+        @matcher.negative_failure_message.should == @matcher.failure_message.gsub("to validate", "to not validate")
+      end
+      it "should warn if invalid options are used" do
+        @matcher = validate_exact_length 4, :name, :allow_anything => true
+        @matcher.matches? subject
+        @matcher.failure_message.should == "expected Item to validate exact length of :name to 4 with :allow_anything => true but option :allow_anything is not valid"
+        @matcher.negative_failure_message.should == @matcher.failure_message.gsub("to validate", "to not validate")
+      end
+    end
+  end
+
+  describe "matchers" do
+    it{ should validate_exact_length(4, :name) }
+    it{ should validate_exact_length(4, :name, :allow_nil => true) }
+    it{ should_not validate_exact_length(4, :price) }
+    it{ should_not validate_exact_length(3, :name) }
+    it{ should_not validate_exact_length(4, :name, :allow_blank => true) }
+  end
+
+end