Fix DB Console tests

The build is broken: https://travis-ci.org/rails/rails/builds/15824530

This commit fixes it.

The problem: Sqlite expects the `database` part to be an absolute path. That prompted this change to be committed to master: https://github.com/rails/rails/commit/fbb79b517f3127ba620fedd01849f9628b78d6ce

This change provides correct behavior. Unfortunately tests were introduced in https://github.com/rails/rails/commit/971d5107cd4cd08c22a85d34546f4ba03ed5c925 that were relying on the incorrect behavior. We can avoid the fix by changing to another database url such as `mysql` or `postgresql`

In addition to fixing the failure, the assertions are changed so that the "expected" value comes before "actual" value.

railties/test/commands/dbconsole_test.rb

@@ -38,36 +38,38 @@ def test_config_with_no_db_config
   end
 
   def test_config_with_database_url_only
-    ENV['DATABASE_URL'] = 'sqlite3://foo:bar@localhost:9000/foo_test?pool=5&timeout=3000'
+    ENV['DATABASE_URL'] = 'postgresql://foo:bar@localhost:9000/foo_test?pool=5&timeout=3000'
     app_db_config(nil)
-    assert_equal Rails::DBConsole.new.config.sort, {
-      "adapter"=> "sqlite3",
-      "host"=> "localhost",
-      "port"=> 9000,
-      "database"=> "foo_test",
-      "username"=> "foo",
-      "password"=> "bar",
-      "pool"=> "5",
-      "timeout"=> "3000"
+    expected = {
+      "adapter"  => "postgresql",
+      "host"     => "localhost",
+      "port"     => 9000,
+      "database" => "foo_test",
+      "username" => "foo",
+      "password" => "bar",
+      "pool"     => "5",
+      "timeout"  => "3000"
     }.sort
+    assert_equal expected, Rails::DBConsole.new.config.sort
   end
 
   def test_config_choose_database_url_if_exists
-    ENV['DATABASE_URL'] = 'sqlite3://foo:bar@dburl:9000/foo_test?pool=5&timeout=3000'
+    host = "database-url-host.com"
+    ENV['DATABASE_URL'] = "postgresql://foo:bar@#{host}:9000/foo_test?pool=5&timeout=3000"
     sample_config = {
       "test" => {
-        "adapter"=> "sqlite3",
-        "host"=> "localhost",
-        "port"=> 9000,
-        "database"=> "foo_test",
-        "username"=> "foo",
-        "password"=> "bar",
-        "pool"=> "5",
-        "timeout"=> "3000"
+        "adapter"  => "postgresql",
+        "host"     => "not-the-#{host}",
+        "port"     => 9000,
+        "database" => "foo_test",
+        "username" => "foo",
+        "password" => "bar",
+        "pool"     => "5",
+        "timeout"  => "3000"
       }
     }
     app_db_config(sample_config)
-    assert_equal Rails::DBConsole.new.config["host"], "dburl"
+    assert_equal host, Rails::DBConsole.new.config["host"]
   end
 
   def test_env