[FIX] Sqlite3 Should create db for missing parent directories as well

activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb

@@ -112,13 +112,9 @@ def initialize(...)
           dirname = File.dirname(@config[:database])
           unless File.directory?(dirname)
             begin
-              Dir.mkdir(dirname)
-            rescue Errno::ENOENT => error
-              if error.message.include?("No such file or directory")
-                raise ActiveRecord::NoDatabaseError.new(connection_pool: @pool)
-              else
-                raise
-              end
+              FileUtils.mkdir_p(dirname)
+            rescue SystemCallError
+              raise ActiveRecord::NoDatabaseError.new(connection_pool: @pool)
             end
           end
         end

activerecord/test/cases/adapters/sqlite3/sqlite3_adapter_test.rb

@@ -25,12 +25,22 @@ def setup
 
       def test_bad_connection
         error = assert_raise ActiveRecord::NoDatabaseError do
-          connection = SQLite3Adapter.new(adapter: "sqlite3", database: "/tmp/should/_not/_exist/-cinco-dog.db")
+          connection = SQLite3Adapter.new(adapter: "sqlite3", database: "/dev/test-dir/db.sqlite3")
           connection.drop_table "ex", if_exists: true
         end
         assert_kind_of ActiveRecord::ConnectionAdapters::NullPool, error.connection_pool
       end
 
+      def test_database_should_get_created_when_missing_parent_directories_for_database_path
+        dir = Dir.mktmpdir
+        db_path = File.join(dir, "_not_exist/-cinco-dog.sqlite3")
+        assert_nothing_raised do
+          connection = SQLite3Adapter.new(adapter: "sqlite3", database: db_path)
+          connection.drop_table "ex", if_exists: true
+        end
+        assert SQLite3Adapter.database_exists?(adapter: "sqlite3", database: db_path)
+      end
+
       def test_database_exists_returns_false_when_the_database_does_not_exist
         assert_not SQLite3Adapter.database_exists?(adapter: "sqlite3", database: "non_extant_db"),
           "expected non_extant_db to not exist"