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Adding a mechanism to override tests in engine plugins from within

the application, in a structured way.

In your engine tests, add the following line to the bottom of the


This will check for files in the application's test directory, of the
name "test/{kind}/{plugin_name}/{test_name}, and load it to override
any tests. For example, if the test is in


then the 'override_tests' method will load (if the file exists)


Keeping these overrides namespaced by plugin should make it a bit
clearer what's going on.
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1 parent 91dd065 commit 6f20d1f32ba91d036fed05921890bea53e085663 @lazyatom committed Apr 18, 2009
Showing with 10 additions and 0 deletions.
  1. +10 −0 lib/engines/testing.rb
10 lib/engines/testing.rb
@@ -88,4 +88,14 @@ def self.set_fixture_path
ActiveSupport::TestCase.fixture_path = self.temporary_fixtures_directory
$LOAD_PATH.unshift self.temporary_fixtures_directory
+ # overridden test should be in test/{unit,functional,integration}/{plugin_name}/{test_name}
+ def self.override_tests_from_app
+ filename = caller.first.split(":").first
+ plugin_name = filename.split("/")[-4]
+ test_kind = filename.split("/")[-2]
+ override_file = File.expand_path(File.join(File.dirname(filename), "..", "..", "..", "..", "..", "test",
+ test_kind, plugin_name, File.basename(filename)))
+ load(override_file) if File.exist?(override_file)
+ end

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