From d0ba361c93aa94865ccfe739e9ab65654771e38e Mon Sep 17 00:00:00 2001
From: Nick Kallen <nkallen@nick-kallens-computer-2.local>
Date: Sat, 16 Feb 2008 16:37:00 -0800
Subject: more test coverage

---
 spec/active_relation/primitives/expression_spec.rb |  2 +-
 spec/active_relation/relations/projection_spec.rb  | 39 +++++++++------
 spec/active_relation/relations/relation_spec.rb    | 57 +++++++++++++---------
 3 files changed, 59 insertions(+), 39 deletions(-)

(limited to 'spec')

diff --git a/spec/active_relation/primitives/expression_spec.rb b/spec/active_relation/primitives/expression_spec.rb
index 707407d415..753f189e82 100644
--- a/spec/active_relation/primitives/expression_spec.rb
+++ b/spec/active_relation/primitives/expression_spec.rb
@@ -25,7 +25,7 @@ module ActiveRelation
       
       describe '#as' do
         it "manufactures an aliased expression" do
-          @expression.as(:foo).should == Expression.new(@attribute, "COUNT", :foo, @expression)
+          @expression.as(:alias).should == Expression.new(@attribute, "COUNT", :alias, @expression)
         end
       end
       
diff --git a/spec/active_relation/relations/projection_spec.rb b/spec/active_relation/relations/projection_spec.rb
index e792eec3b8..739a16c8ef 100644
--- a/spec/active_relation/relations/projection_spec.rb
+++ b/spec/active_relation/relations/projection_spec.rb
@@ -3,36 +3,45 @@ require File.join(File.dirname(__FILE__), '..', '..', 'spec_helper')
 module ActiveRelation
   describe Projection do
     before do
-      @relation1 = Table.new(:foo)
-      @relation2 = Table.new(:bar)
-      @attribute1 = @relation1[:id]
-      @attribute2 = @relation2[:id]
+      @relation = Table.new(:users)
+      @attribute = @relation[:id]
     end
-  
-    it "needs to test that [] is limited" do
-      pending
+    
+    describe '#attributes' do
+      before do
+        @projection = Projection.new(@relation, @attribute)
+      end
+      
+      it "manufactures attributes associated with the projection relation" do
+        @projection.attributes.should == [@attribute].collect { |a| a.bind(@projection) }
+      end
     end
     
     describe '==' do
+      before do
+        @another_relation = Table.new(:photos)
+        @another_attribute = @relation[:name]
+      end
+      
       it "obtains if the relations and attributes are identical" do
-        Projection.new(@relation1, @attribute1, @attribute2).should == Projection.new(@relation1, @attribute1, @attribute2)
-        Projection.new(@relation1, @attribute1).should_not == Projection.new(@relation2, @attribute1)
-        Projection.new(@relation1, @attribute1).should_not == Projection.new(@relation1, @attribute2)
+        Projection.new(@relation, @attribute).should == Projection.new(@relation, @attribute)
+        Projection.new(@relation, @attribute).should_not == Projection.new(@another_relation, @attribute)
+        Projection.new(@relation, @attribute).should_not == Projection.new(@relation, @another_attribute)
       end
     end
   
     describe '#qualify' do
       it "distributes over the relation and attributes" do
-        Projection.new(@relation1, @attribute1).qualify. \
-          should == Projection.new(@relation1.qualify, @attribute1.qualify)
+        Projection.new(@relation, @attribute).qualify. \
+          should == Projection.new(@relation.qualify, @attribute.qualify)
       end
     end
   
     describe '#to_sql' do
       it "manufactures sql with a limited select clause" do
-        Projection.new(@relation1, @attribute1).to_sql.should be_like("""
-          SELECT `foo`.`id`
-          FROM `foo`
+        Projection.new(@relation, @attribute).to_sql.should be_like("""
+          SELECT `users`.`id`
+          FROM `users`
         """)
       end
     end
diff --git a/spec/active_relation/relations/relation_spec.rb b/spec/active_relation/relations/relation_spec.rb
index 91eabe485b..a25dc4b1db 100644
--- a/spec/active_relation/relations/relation_spec.rb
+++ b/spec/active_relation/relations/relation_spec.rb
@@ -3,68 +3,79 @@ require File.join(File.dirname(__FILE__), '..', '..', 'spec_helper')
 module ActiveRelation
   describe Relation do
     before do
-      @relation1 = Table.new(:foo)
-      @relation2 = Table.new(:bar)
-      @attribute1 = Attribute.new(@relation1, :id)
-      @attribute2 = Attribute.new(@relation1, :name)
+      @relation = Table.new(:users)
+      @attribute1 = @relation[:id]
+      @attribute2 = @relation[:name]
     end
   
     describe '[]' do
-      it "manufactures a range relation when given a range" do
-        @relation1[1..2].should == Range.new(@relation1, 1..2)
+      describe 'when given a', Range do
+        it "manufactures a range relation when given a range" do
+          @relation[1..2].should == Range.new(@relation, 1..2)
+        end
       end
       
-      it "needs to test attributes and names" do
-        pending
+      describe 'when given an', Attribute do
+        it "return the attribute congruent to the provided attribute" do
+          @relation[@attribute1].should == @attribute1
+        end
+      end
+      
+      describe 'when given a', Symbol, String do
+        it "returns the attribute with the same name, if it exists" do
+          @relation[:id].should == @attribute1
+          @relation['id'].should == @attribute1
+          @relation[:does_not_exist].should be_nil
+        end
       end
     end
   
     describe '#include?' do
       it "manufactures an inclusion predicate" do
-        @relation1.include?(@attribute1).should be_kind_of(RelationInclusion)
+        @relation.include?(@attribute1).should be_kind_of(RelationInclusion)
       end
     end
     
     describe '#Expression?' do
       it "returns false" do
-        @relation1.should_not be_aggregation
+        @relation.should_not be_aggregation
       end
     end
 
     describe 'read operations' do
       describe 'joins' do
         before do
-          @predicate = @relation1[:id].equals(@relation2[:id])
+          @predicate = @relation[:id].equals(@relation[:id])
         end
       
         describe '#join' do
           it "manufactures an inner join operation between those two relations" do
-            @relation1.join(@relation2).on(@predicate).should == Join.new("INNER JOIN", @relation1, @relation2, @predicate)
+            @relation.join(@relation).on(@predicate).should == Join.new("INNER JOIN", @relation, @relation, @predicate)
           end
         end
     
         describe '#outer_join' do
           it "manufactures a left outer join operation between those two relations" do
-            @relation1.outer_join(@relation2).on(@predicate).should == Join.new("LEFT OUTER JOIN", @relation1, @relation2, @predicate)
+            @relation.outer_join(@relation).on(@predicate).should == Join.new("LEFT OUTER JOIN", @relation, @relation, @predicate)
           end      
         end
       end
   
       describe '#project' do
         it "manufactures a projection relation" do
-          @relation1.project(@attribute1, @attribute2).should == Projection.new(@relation1, @attribute1, @attribute2)
+          @relation.project(@attribute1, @attribute2).should == Projection.new(@relation, @attribute1, @attribute2)
         end
       end
     
       describe '#as' do
         it "manufactures an alias relation" do
-          @relation1.as(:thucydides).should == Alias.new(@relation1, :thucydides)
+          @relation.as(:thucydides).should == Alias.new(@relation, :thucydides)
         end
       end
   
       describe '#rename' do
         it "manufactures a rename relation" do
-          @relation1.rename(@attribute1, :foo).should == Rename.new(@relation1, @attribute1 => :foo)
+          @relation.rename(@attribute1, :users).should == Rename.new(@relation, @attribute1 => :users)
         end
       end
   
@@ -74,24 +85,24 @@ module ActiveRelation
         end
     
         it "manufactures a selection relation" do
-          @relation1.select(@predicate).should == Selection.new(@relation1, @predicate)
+          @relation.select(@predicate).should == Selection.new(@relation, @predicate)
         end
     
         it "accepts arbitrary strings" do
-          @relation1.select("arbitrary").should == Selection.new(@relation1, "arbitrary")
+          @relation.select("arbitrary").should == Selection.new(@relation, "arbitrary")
         end
       end
   
       describe '#order' do
         it "manufactures an order relation" do
-          @relation1.order(@attribute1, @attribute2).should == Order.new(@relation1, @attribute1, @attribute2)
+          @relation.order(@attribute1, @attribute2).should == Order.new(@relation, @attribute1, @attribute2)
         end
       end
       
       describe '#aggregate' do
         it 'manufactures a group relation' do
-          @relation1.aggregate(@expression1, @expression2).group(@attribute1, @attribute2). \
-            should == Aggregation.new(@relation1, :expressions => [@expresion, @expression2], :groupings => [@attribute1, @attribute2])
+          @relation.aggregate(@expression1, @expression2).group(@attribute1, @attribute2). \
+            should == Aggregation.new(@relation, :expressions => [@expresion, @expression2], :groupings => [@attribute1, @attribute2])
         end
       end
     end
@@ -99,13 +110,13 @@ module ActiveRelation
     describe 'write operations' do
       describe '#delete' do
         it 'manufactures a deletion relation' do
-          @relation1.delete.should be_kind_of(Deletion)
+          @relation.delete.should be_kind_of(Deletion)
         end
       end
     
       describe '#insert' do
         it 'manufactures an insertion relation' do
-          @relation1.insert(record = {:id => 1}).should be_kind_of(Insertion)
+          @relation.insert(record = {:id => 1}).should be_kind_of(Insertion)
         end
       end
     end
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