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require 'cases/helper'

module ActiveRecord
  module DatabaseTasksSetupper
    def setup
      @mysql_tasks, @postgresql_tasks, @sqlite_tasks = stub, stub, stub
      ActiveRecord::Tasks::MySQLDatabaseTasks.stubs(:new).returns @mysql_tasks
      ActiveRecord::Tasks::PostgreSQLDatabaseTasks.stubs(:new).returns @postgresql_tasks
      ActiveRecord::Tasks::SQLiteDatabaseTasks.stubs(:new).returns @sqlite_tasks
    end
  end

  ADAPTERS_TASKS = {
     :mysql      => :mysql_tasks,
     :mysql2     => :mysql_tasks,
     :postgresql => :postgresql_tasks,
     :sqlite3    => :sqlite_tasks
  }
 
  class DatabaseTasksCreateTest < ActiveRecord::TestCase
    include DatabaseTasksSetupper

    ADAPTERS_TASKS.each do |k, v|
      define_method("test_#{k}_create") do
        eval("@#{v}").expects(:create)
        ActiveRecord::Tasks::DatabaseTasks.create 'adapter' => k
      end
    end
  end

  class DatabaseTasksCreateAllTest < ActiveRecord::TestCase
    def setup
      @configurations = {'development' => {'database' => 'my-db'}}

      ActiveRecord::Base.stubs(:configurations).returns(@configurations)
    end

    def test_ignores_configurations_without_databases
      @configurations['development'].merge!('database' => nil)

      ActiveRecord::Tasks::DatabaseTasks.expects(:create).never

      ActiveRecord::Tasks::DatabaseTasks.create_all
    end

    def test_ignores_remote_databases
      @configurations['development'].merge!('host' => 'my.server.tld')
      $stderr.stubs(:puts).returns(nil)

      ActiveRecord::Tasks::DatabaseTasks.expects(:create).never

      ActiveRecord::Tasks::DatabaseTasks.create_all
    end

    def test_warning_for_remote_databases
      @configurations['development'].merge!('host' => 'my.server.tld')

      $stderr.expects(:puts).with('This task only modifies local databases. my-db is on a remote host.')

      ActiveRecord::Tasks::DatabaseTasks.create_all
    end

    def test_creates_configurations_with_local_ip
      @configurations['development'].merge!('host' => '127.0.0.1')

      ActiveRecord::Tasks::DatabaseTasks.expects(:create)

      ActiveRecord::Tasks::DatabaseTasks.create_all
    end

    def test_creates_configurations_with_local_host
      @configurations['development'].merge!('host' => 'localhost')

      ActiveRecord::Tasks::DatabaseTasks.expects(:create)

      ActiveRecord::Tasks::DatabaseTasks.create_all
    end

    def test_creates_configurations_with_blank_hosts
      @configurations['development'].merge!('host' => nil)

      ActiveRecord::Tasks::DatabaseTasks.expects(:create)

      ActiveRecord::Tasks::DatabaseTasks.create_all
    end
  end

  class DatabaseTasksCreateCurrentTest < ActiveRecord::TestCase
    def setup
      @configurations = {
        'development' => {'database' => 'dev-db'},
        'test'        => {'database' => 'test-db'},
        'production'  => {'database' => 'prod-db'}
      }

      ActiveRecord::Base.stubs(:configurations).returns(@configurations)
      ActiveRecord::Base.stubs(:establish_connection).returns(true)
    end

    def test_creates_current_environment_database
      ActiveRecord::Tasks::DatabaseTasks.expects(:create).
        with('database' => 'prod-db')

      ActiveRecord::Tasks::DatabaseTasks.create_current(
        ActiveSupport::StringInquirer.new('production')
      )
    end

    def test_creates_test_database_when_environment_is_database
      ActiveRecord::Tasks::DatabaseTasks.expects(:create).
        with('database' => 'dev-db')
      ActiveRecord::Tasks::DatabaseTasks.expects(:create).
        with('database' => 'test-db')

      ActiveRecord::Tasks::DatabaseTasks.create_current(
        ActiveSupport::StringInquirer.new('development')
      )
    end

    def test_establishes_connection_for_the_given_environment
      ActiveRecord::Tasks::DatabaseTasks.stubs(:create).returns true

      ActiveRecord::Base.expects(:establish_connection).with('development')

      ActiveRecord::Tasks::DatabaseTasks.create_current(
        ActiveSupport::StringInquirer.new('development')
      )
    end
  end

  class DatabaseTasksDropTest < ActiveRecord::TestCase
    include DatabaseTasksSetupper

    ADAPTERS_TASKS.each do |k, v|
      define_method("test_#{k}_drop") do
        eval("@#{v}").expects(:drop)
        ActiveRecord::Tasks::DatabaseTasks.drop 'adapter' => k
      end
    end
  end

  class DatabaseTasksDropAllTest < ActiveRecord::TestCase
    def setup
      @configurations = {:development => {'database' => 'my-db'}}

      ActiveRecord::Base.stubs(:configurations).returns(@configurations)
    end

    def test_ignores_configurations_without_databases
      @configurations[:development].merge!('database' => nil)

      ActiveRecord::Tasks::DatabaseTasks.expects(:drop).never

      ActiveRecord::Tasks::DatabaseTasks.drop_all
    end

    def test_ignores_remote_databases
      @configurations[:development].merge!('host' => 'my.server.tld')
      $stderr.stubs(:puts).returns(nil)

      ActiveRecord::Tasks::DatabaseTasks.expects(:drop).never

      ActiveRecord::Tasks::DatabaseTasks.drop_all
    end

    def test_warning_for_remote_databases
      @configurations[:development].merge!('host' => 'my.server.tld')

      $stderr.expects(:puts).with('This task only modifies local databases. my-db is on a remote host.')

      ActiveRecord::Tasks::DatabaseTasks.drop_all
    end

    def test_creates_configurations_with_local_ip
      @configurations[:development].merge!('host' => '127.0.0.1')

      ActiveRecord::Tasks::DatabaseTasks.expects(:drop)

      ActiveRecord::Tasks::DatabaseTasks.drop_all
    end

    def test_creates_configurations_with_local_host
      @configurations[:development].merge!('host' => 'localhost')

      ActiveRecord::Tasks::DatabaseTasks.expects(:drop)

      ActiveRecord::Tasks::DatabaseTasks.drop_all
    end

    def test_creates_configurations_with_blank_hosts
      @configurations[:development].merge!('host' => nil)

      ActiveRecord::Tasks::DatabaseTasks.expects(:drop)

      ActiveRecord::Tasks::DatabaseTasks.drop_all
    end
  end

  class DatabaseTasksDropCurrentTest < ActiveRecord::TestCase
    def setup
      @configurations = {
        'development' => {'database' => 'dev-db'},
        'test'        => {'database' => 'test-db'},
        'production'  => {'database' => 'prod-db'}
      }

      ActiveRecord::Base.stubs(:configurations).returns(@configurations)
    end

    def test_creates_current_environment_database
      ActiveRecord::Tasks::DatabaseTasks.expects(:drop).
        with('database' => 'prod-db')

      ActiveRecord::Tasks::DatabaseTasks.drop_current(
        ActiveSupport::StringInquirer.new('production')
      )
    end

    def test_creates_test_database_when_environment_is_database
      ActiveRecord::Tasks::DatabaseTasks.expects(:drop).
        with('database' => 'dev-db')
      ActiveRecord::Tasks::DatabaseTasks.expects(:drop).
        with('database' => 'test-db')

      ActiveRecord::Tasks::DatabaseTasks.drop_current(
        ActiveSupport::StringInquirer.new('development')
      )
    end
  end


  class DatabaseTasksPurgeTest < ActiveRecord::TestCase
    include DatabaseTasksSetupper

    ADAPTERS_TASKS.each do |k, v|
      define_method("test_#{k}_purge") do
        eval("@#{v}").expects(:purge)
        ActiveRecord::Tasks::DatabaseTasks.purge 'adapter' => k
      end
    end
  end

  class DatabaseTasksCharsetTest < ActiveRecord::TestCase
    include DatabaseTasksSetupper
 
    ADAPTERS_TASKS.each do |k, v|
      define_method("test_#{k}_charset") do
        eval("@#{v}").expects(:charset)
        ActiveRecord::Tasks::DatabaseTasks.charset 'adapter' => k
      end
    end
  end

  class DatabaseTasksStructureDumpTest < ActiveRecord::TestCase
    include DatabaseTasksSetupper

    ADAPTERS_TASKS.each do |k, v|
      define_method("test_#{k}_structure_dump") do
        eval("@#{v}").expects(:structure_dump).with("awesome-file.sql")
        ActiveRecord::Tasks::DatabaseTasks.structure_dump({'adapter' => k}, "awesome-file.sql")
      end
    end
  end

  class DatabaseTasksStructureLoadTest < ActiveRecord::TestCase
    include DatabaseTasksSetupper

    ADAPTERS_TASKS.each do |k, v|
      define_method("test_#{k}_structure_load") do
        eval("@#{v}").expects(:structure_load).with("awesome-file.sql")
        ActiveRecord::Tasks::DatabaseTasks.structure_load({'adapter' => k}, "awesome-file.sql")
      end
    end
  end
end