Fix `rails db -h` and cosmetic fixes in usage banners

Ruby tries to use '-h' as short version of '--header' by default
https://github.com/ruby/ruby/blob/trunk/lib/optparse.rb#L1372-1381.
To force `rails db -h` prints an usage message we should add the `-h`
options explicitly.

1 files changed, 18 insertions, 0 deletions

diff --git a/railties/test/commands/dbconsole_test.rb b/railties/test/commands/dbconsole_test.rb
index 57074cd0ad..6d0f5ca073 100644
--- a/railties/test/commands/dbconsole_test.rb
+++ b/railties/test/commands/dbconsole_test.rb
@@ -132,6 +132,24 @@ class Rails::DBConsoleTest < ActiveSupport::TestCase
     assert_match /Unknown command-line client for db/, output
   end
 
+  def test_print_help_short
+    stdout = capture(:stdout) do
+      start({}, ['-h'])
+    end
+    assert aborted
+    assert_equal '', output
+    assert_match /Usage:.*dbconsole/, stdout
+  end
+
+  def test_print_help_long
+    stdout = capture(:stdout) do
+      start({}, ['--help'])
+    end
+    assert aborted
+    assert_equal '', output
+    assert_match /Usage:.*dbconsole/, stdout
+  end
+
   private
   attr_reader :aborted, :output