From 52325f6bf868c5efa80fbcf06d139a31816251fb Mon Sep 17 00:00:00 2001
From: Jeremy Kemper <jeremy@bitsweat.net>
Date: Thu, 24 Nov 2005 05:43:27 +0000
Subject: Sever infinite loop for mutual dependencies.  Closes #2997.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3181 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 activesupport/test/dependencies/mutual_one.rb       |  2 ++
 activesupport/test/dependencies/mutual_two.rb       |  2 ++
 activesupport/test/dependencies/raises_exception.rb |  1 +
 activesupport/test/dependencies_test.rb             | 18 ++++++++++++++++++
 4 files changed, 23 insertions(+)
 create mode 100644 activesupport/test/dependencies/mutual_one.rb
 create mode 100644 activesupport/test/dependencies/mutual_two.rb

(limited to 'activesupport/test')

diff --git a/activesupport/test/dependencies/mutual_one.rb b/activesupport/test/dependencies/mutual_one.rb
new file mode 100644
index 0000000000..eb5e056efb
--- /dev/null
+++ b/activesupport/test/dependencies/mutual_one.rb
@@ -0,0 +1,2 @@
+$mutual_dependencies_count += 1
+require_dependency 'mutual_two'
diff --git a/activesupport/test/dependencies/mutual_two.rb b/activesupport/test/dependencies/mutual_two.rb
new file mode 100644
index 0000000000..99ba337e55
--- /dev/null
+++ b/activesupport/test/dependencies/mutual_two.rb
@@ -0,0 +1,2 @@
+$mutual_dependencies_count += 1
+require_dependency 'mutual_one'
diff --git a/activesupport/test/dependencies/raises_exception.rb b/activesupport/test/dependencies/raises_exception.rb
index df8d8b79d0..69750eee72 100644
--- a/activesupport/test/dependencies/raises_exception.rb
+++ b/activesupport/test/dependencies/raises_exception.rb
@@ -1,2 +1,3 @@
 $raises_exception_load_count += 1
 raise 'Loading me failed, so do not add to loaded or history.'
+$raises_exception_load_count += 1
diff --git a/activesupport/test/dependencies_test.rb b/activesupport/test/dependencies_test.rb
index a59b0284a9..b801ce6cf0 100644
--- a/activesupport/test/dependencies_test.rb
+++ b/activesupport/test/dependencies_test.rb
@@ -79,4 +79,22 @@ class DependenciesTest < Test::Unit::TestCase
   ensure
     Dependencies.mechanism = old_mechanism
   end
+
+  def test_mutual_dependencies_dont_infinite_loop
+    $LOAD_PATH.unshift "#{File.dirname(__FILE__)}/dependencies"
+    old_mechanism, Dependencies.mechanism = Dependencies.mechanism, :load
+
+    $mutual_dependencies_count = 0
+    assert_nothing_raised { require_dependency 'mutual_one' }
+    assert_equal 2, $mutual_dependencies_count
+
+    Dependencies.clear
+
+    $mutual_dependencies_count = 0
+    assert_nothing_raised { require_dependency 'mutual_two' }
+    assert_equal 2, $mutual_dependencies_count
+  ensure
+    $LOAD_PATH.shift
+    Dependencies.mechanism = old_mechanism
+  end
 end
-- 
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