Nondiscriptive Rail Error "Errors running test:units!"

Errors Running test:units!

The "Errors running test:units!" error while creating a brand new Rails application under Cygwin:

rails world_app -d mysql
cd world_app


$ rake test

This results in the following error message:

(in /cygdrive/d/workspace/tt/world_app)
/usr/bin/ruby.exe -I"lib:test" "/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb"
/usr/bin/ruby.exe -I"lib:test" "/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb"
Errors running test:units!

Attempting to execute the Rails tests results in the same eror:

$ rake test --trace
(in /cygdrive/d/workspace/tt/world_app)
** Invoke test (first_time)
** Execute test
** Invoke test:units (first_time)
** Invoke db:test:prepare (first_time)
** Invoke db:abort_if_pending_migrations (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:abort_if_pending_migrations
** Invoke test:functionals (first_time)
** Invoke db:test:prepare
** Execute test:functionals
/usr/bin/ruby.exe -I"lib:test" "/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb"
** Invoke test:integration (first_time)
** Invoke db:test:prepare
** Execute test:integration
/usr/bin/ruby.exe -I"lib:test" "/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb"
Errors running test:units!

Fixing the Error

The following steps fixed the error:

1. Edit config/database.yml
2. Make sure the db password is correct.
3. Make sure the db is created.
4. Change "host: localhost" to "host: 127.0.0.1" if need be.

$ rake test --trace
(in /cygdrive/d/workspace/tt/world_app)
** Invoke test (first_time)
** Execute test
** Invoke test:units (first_time)
** Invoke db:test:prepare (first_time)
** Invoke db:abort_if_pending_migrations (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:abort_if_pending_migrations
** Execute db:test:prepare
** Invoke db:test:load (first_time)
** Invoke db:test:purge (first_time)
** Invoke environment
** Execute db:test:purge
** Execute db:test:load
** Invoke db:schema:load (first_time)
** Invoke environment
** Execute db:schema:load
** Execute test:units
/usr/bin/ruby.exe -I"lib:test" "/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb"
** Invoke test:functionals (first_time)
** Invoke db:test:prepare
** Execute test:functionals
/usr/bin/ruby.exe -I"lib:test" "/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb"
** Invoke test:integration (first_time)
** Invoke db:test:prepare
** Execute test:integration
/usr/bin/ruby.exe -I"lib:test" "/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb"