Problem getting FileColumn working

Hi !

I use FileColumn straight from SVN. When I run a single test case,
things work fine:
[francois@www backend]$ ruby test/unit/screenshot_test.rb
Loaded suite test/unit/screenshot_test
Started

Finished in 0.580577 seconds.

3 tests, 3 assertions, 0 failures, 0 errors

Raking test_units fails:

[francois@www backend]$ rake TEST=test/unit/screenshot_test.rb
(in /var/www/project/backend)
/usr/bin/ruby -Ilib:test
“/usr/lib/ruby/gems/1.8/gems/rake-0.6.2/lib/rake/rake_test_loader.rb”
“test/unit/screenshot_test.rb”
Loaded suite
/usr/lib/ruby/gems/1.8/gems/rake-0.6.2/lib/rake/rake_test_loader
Started
E.E
Finished in 0.033529 seconds.

  1. Error:
    test_regular_picture_available(ScreenshotTest):
    NameError: uninitialized constant Magick
    /var/www/project/backend/config/…/vendor/rails/activerecord/lib/…/…/activesupport/lib/active_support/dependencies.rb:200:in
    const_missing' /var/www/project/backend/config/../vendor/plugins/file_column/lib/magick_file_column.rb:8:intransform_with_magick’
    /var/www/project/backend/config/…/vendor/plugins/file_column/lib/magick_file_column.rb:96:in
    shot_magick_after_assign' /var/www/project/backend/config/../vendor/plugins/file_column/lib/file_column.rb:586:inshot=’
    /var/www/project/backend/config/…/vendor/plugins/file_column/lib/file_column.rb:585:in
    shot=' /var/www/project/backend/config/../vendor/rails/activerecord/lib/active_record/base.rb:1350:inattributes=’
    /var/www/project/backend/config/…/vendor/rails/activerecord/lib/active_record/base.rb:1349:in
    attributes=' /var/www/project/backend/config/../vendor/rails/activerecord/lib/active_record/base.rb:1202:ininitialize_without_callbacks’
    /var/www/project/backend/config/…/vendor/rails/activerecord/lib/active_record/callbacks.rb:236:in
    initialize' ./test/unit/screenshot_test.rb:12:intest_regular_picture_available’

There must be something wrong I’m doing… I require RMagick in
environment.rb - should I be doing that ?

Thanks for any tips !