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require 'spec_helper'
module Arel
FakeAR = Struct.new(:connection)
class FakeConnection < Struct.new :called
def initialize c = []; super; end
def method_missing name, *args, &block
called << [name, args, block]
end
end
describe Sql::Engine do
before do
@users = Table.new(:users)
@users.delete
end
describe "method missing" do
it "should pass through" do
conn = FakeConnection.new
engine = Arel::Sql::Engine.new FakeAR.new conn
engine.foo
conn.called.should == [[:foo, [], nil]]
end
it "should ask for a connection" do
conn = FakeConnection.new
ar = FakeAR.new conn
engine = Arel::Sql::Engine.new ar
ar.connection = nil
lambda { engine.foo }.should raise_error
end
end
describe "CRUD" do
describe "#create" do
it "inserts into the relation" do
@users.insert @users[:name] => "Bryan"
@users.first[@users[:name]].should == "Bryan"
end
end
describe "#read" do
it "reads from the relation" do
@users.insert @users[:name] => "Bryan"
@users.each do |row|
row[@users[:name]].should == "Bryan"
end
end
end
describe "#update" do
it "updates the relation" do
@users.insert @users[:name] => "Nick"
@users.update @users[:name] => "Bryan"
@users.first[@users[:name]].should == "Bryan"
end
end
describe "#delete" do
it "deletes from the relation" do
@users.insert @users[:name] => "Bryan"
@users.delete
@users.first.should == nil
end
end
end
end
end
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