Rails is the default (but now override able) source for environment and path.

activerecord/lib/active_record/tasks/database_tasks.rb

@@ -6,8 +6,9 @@ class ActiveRecord::Tasks::DatabaseTasks
   }
   LOCAL_HOSTS    = ['127.0.0.1', 'localhost']
 
-  def self.create(configuration)
-    class_for_adapter(configuration['adapter']).new(configuration).create
+  def self.create(*arguments)
+    configuration = arguments.first
+    class_for_adapter(configuration['adapter']).new(*arguments).create
   rescue Exception => error
     $stderr.puts error, *(error.backtrace)
     $stderr.puts "Couldn't create database for #{configuration.inspect}"
@@ -17,13 +18,16 @@ def self.create_all
     each_local_configuration { |configuration| create configuration }
   end
 
-  def self.create_current
-    each_current_configuration { |configuration| create configuration }
-    ActiveRecord::Base.establish_connection Rails.env
+  def self.create_current(environment = Rails.env)
+    each_current_configuration(environment) { |configuration|
+      create configuration
+    }
+    ActiveRecord::Base.establish_connection environment
   end
 
-  def self.drop(configuration)
-    class_for_adapter(configuration['adapter']).new(configuration).drop
+  def self.drop(*arguments)
+    configuration = arguments.first
+    class_for_adapter(configuration['adapter']).new(*arguments).drop
   rescue Exception => error
     $stderr.puts error, *(error.backtrace)
     $stderr.puts "Couldn't drop #{configuration['database']}"
@@ -33,8 +37,10 @@ def self.drop_all
     each_local_configuration { |configuration| drop configuration }
   end
 
-  def self.drop_current
-    each_current_configuration { |configuration| drop configuration }
+  def self.drop_current(environment = Rails.env)
+    each_current_configuration(environment) { |configuration|
+      drop configuration
+    }
   end
 
   def self.purge(configuration)
@@ -48,9 +54,9 @@ def self.class_for_adapter(adapter)
     TASKS_PATTERNS[key]
   end
 
-  def self.each_current_configuration
-    environments = [Rails.env]
-    environments << 'test' if Rails.env.development?
+  def self.each_current_configuration(environment)
+    environments = [environment]
+    environments << 'test' if environment.development?
 
     configurations = ActiveRecord::Base.configurations.values_at(*environments)
     configurations.compact.each do |configuration|

activerecord/lib/active_record/tasks/sqlite_database_tasks.rb

 class ActiveRecord::Tasks::SQLiteDatabaseTasks
   delegate :connection, :establish_connection, :to => ActiveRecord::Base
 
-  def initialize(configuration)
-    @configuration = configuration
+  def initialize(configuration, root = Rails.root)
+    @configuration, @root = configuration, root
   end
 
   def create
@@ -18,7 +18,7 @@ def create
   def drop
     require 'pathname'
     path = Pathname.new configuration['database']
-    file = path.absolute? ? path.to_s : File.join(Rails.root, path)
+    file = path.absolute? ? path.to_s : File.join(root, path)
 
     FileUtils.rm(file)
   end
@@ -30,4 +30,8 @@ def drop
   def configuration
     @configuration
   end
+
+  def root
+    @root
+  end
 end

activerecord/test/cases/database_tasks_test.rb

@@ -106,32 +106,33 @@ def setup
     end
 
     def test_creates_current_environment_database
-      Rails.stubs(:env).returns ActiveSupport::StringInquirer.new('production')
-
       ActiveRecord::Tasks::DatabaseTasks.expects(:create).
         with('database' => 'prod-db')
 
-      ActiveRecord::Tasks::DatabaseTasks.create_current
+      ActiveRecord::Tasks::DatabaseTasks.create_current(
+        ActiveSupport::StringInquirer.new('production')
+      )
     end
 
     def test_creates_test_database_when_environment_is_database
-      Rails.stubs(:env).returns ActiveSupport::StringInquirer.new('development')
-
       ActiveRecord::Tasks::DatabaseTasks.expects(:create).
         with('database' => 'dev-db')
       ActiveRecord::Tasks::DatabaseTasks.expects(:create).
         with('database' => 'test-db')
 
-      ActiveRecord::Tasks::DatabaseTasks.create_current
+      ActiveRecord::Tasks::DatabaseTasks.create_current(
+        ActiveSupport::StringInquirer.new('development')
+      )
     end
 
     def test_establishes_connection_for_the_given_environment
-      Rails.stubs(:env).returns ActiveSupport::StringInquirer.new('development')
       ActiveRecord::Tasks::DatabaseTasks.stubs(:create).returns true
 
       ActiveRecord::Base.expects(:establish_connection).with('development')
 
-      ActiveRecord::Tasks::DatabaseTasks.create_current
+      ActiveRecord::Tasks::DatabaseTasks.create_current(
+        ActiveSupport::StringInquirer.new('development')
+      )
     end
   end
 
@@ -239,23 +240,23 @@ def setup
     end
 
     def test_creates_current_environment_database
-      Rails.stubs(:env).returns ActiveSupport::StringInquirer.new('production')
-
       ActiveRecord::Tasks::DatabaseTasks.expects(:drop).
         with('database' => 'prod-db')
 
-      ActiveRecord::Tasks::DatabaseTasks.drop_current
+      ActiveRecord::Tasks::DatabaseTasks.drop_current(
+        ActiveSupport::StringInquirer.new('production')
+      )
     end
 
     def test_creates_test_database_when_environment_is_database
-      Rails.stubs(:env).returns ActiveSupport::StringInquirer.new('development')
-
       ActiveRecord::Tasks::DatabaseTasks.expects(:drop).
         with('database' => 'dev-db')
       ActiveRecord::Tasks::DatabaseTasks.expects(:drop).
         with('database' => 'test-db')
 
-      ActiveRecord::Tasks::DatabaseTasks.drop_current
+      ActiveRecord::Tasks::DatabaseTasks.drop_current(
+        ActiveSupport::StringInquirer.new('development')
+      )
     end
   end
 

activerecord/test/cases/sqlite_rake_test.rb

@@ -19,7 +19,7 @@ def setup
     def test_db_checks_database_exists
       File.expects(:exist?).with(@database).returns(false)
 
-      ActiveRecord::Tasks::DatabaseTasks.create @configuration
+      ActiveRecord::Tasks::DatabaseTasks.create @configuration, '/rails/root'
     end
 
     def test_db_create_when_file_exists
@@ -27,7 +27,7 @@ def test_db_create_when_file_exists
 
       $stderr.expects(:puts).with("#{@database} already exists")
 
-      ActiveRecord::Tasks::DatabaseTasks.create @configuration
+      ActiveRecord::Tasks::DatabaseTasks.create @configuration, '/rails/root'
     end
 
     def test_db_create_with_file_does_nothing
@@ -36,18 +36,13 @@ def test_db_create_with_file_does_nothing
 
       ActiveRecord::Base.expects(:establish_connection).never
 
-      ActiveRecord::Tasks::DatabaseTasks.create @configuration
+      ActiveRecord::Tasks::DatabaseTasks.create @configuration, '/rails/root'
     end
 
     def test_db_create_establishes_a_connection
       ActiveRecord::Base.expects(:establish_connection).with(@configuration)
 
-      ActiveRecord::Tasks::DatabaseTasks.create @configuration
-    end
-
-    def test_db_create_returns_the_connection
-      assert_equal ActiveRecord::Tasks::DatabaseTasks.create(@configuration),
-        @connection
+      ActiveRecord::Tasks::DatabaseTasks.create @configuration, '/rails/root'
     end
 
     def test_db_create_with_error_prints_message
@@ -57,7 +52,7 @@ def test_db_create_with_error_prints_message
       $stderr.expects(:puts).
         with("Couldn't create database for #{@configuration.inspect}")
 
-      ActiveRecord::Tasks::DatabaseTasks.create(@configuration)
+      ActiveRecord::Tasks::DatabaseTasks.create @configuration, '/rails/root'
     end
   end
 
@@ -70,7 +65,6 @@ def setup
         'database' => @database
       }
 
-      Rails.stubs(:root).returns('/rails/root')
       Pathname.stubs(:new).returns(@path)
       File.stubs(:join).returns('/former/relative/path')
       FileUtils.stubs(:rm).returns(true)
@@ -79,7 +73,7 @@ def setup
     def test_creates_path_from_database
       Pathname.expects(:new).with(@database).returns(@path)
 
-      ActiveRecord::Tasks::DatabaseTasks.drop @configuration
+      ActiveRecord::Tasks::DatabaseTasks.drop @configuration, '/rails/root'
     end
 
     def test_removes_file_with_absolute_path
@@ -87,7 +81,16 @@ def test_removes_file_with_absolute_path
 
       FileUtils.expects(:rm).with('/absolute/path')
 
-      ActiveRecord::Tasks::DatabaseTasks.drop @configuration
+      ActiveRecord::Tasks::DatabaseTasks.drop @configuration, '/rails/root'
+    end
+
+    def test_generates_absolute_path_with_given_root
+      @path.stubs(:absolute?).returns(false)
+
+      File.expects(:join).with('/rails/root', @path).
+        returns('/former/relative/path')
+
+      ActiveRecord::Tasks::DatabaseTasks.drop @configuration, '/rails/root'
     end
 
     def test_removes_file_with_relative_path
@@ -95,7 +98,7 @@ def test_removes_file_with_relative_path
 
       FileUtils.expects(:rm).with('/former/relative/path')
 
-      ActiveRecord::Tasks::DatabaseTasks.drop @configuration
+      ActiveRecord::Tasks::DatabaseTasks.drop @configuration, '/rails/root'
     end
   end
 end