Exclude gem backtrace filter if rubygems is not loaded

1 files changed, 17 insertions, 16 deletions

diff --git a/railties/test/backtrace_cleaner_test.rb b/railties/test/backtrace_cleaner_test.rb
index 64a47712b7..4e273852e0 100644
--- a/railties/test/backtrace_cleaner_test.rb
+++ b/railties/test/backtrace_cleaner_test.rb
@@ -29,25 +29,26 @@ else
   $stderr.puts 'No BacktraceFilter for minitest'
 end
 
-class BacktraceCleanerVendorGemTest < ActiveSupport::TestCase
-  def setup
-    @cleaner = Rails::BacktraceCleaner.new
-  end
-
-  test "should format installed gems correctly" do
-    @backtrace = [ "#{Gem.path[0]}/gems/nosuchgem-1.2.3/lib/foo.rb" ]
-    @result = @cleaner.clean(@backtrace)
-    assert_equal "nosuchgem (1.2.3) lib/foo.rb", @result[0]
-  end
+if defined? Gem
+  class BacktraceCleanerVendorGemTest < ActiveSupport::TestCase
+    def setup
+      @cleaner = Rails::BacktraceCleaner.new
+    end
 
-  test "should format installed gems not in Gem.default_dir correctly" do
-    @target_dir = Gem.path.detect { |p| p != Gem.default_dir }
-    # skip this test if default_dir is the only directory on Gem.path
-    if @target_dir
-      @backtrace = [ "#{@target_dir}/gems/nosuchgem-1.2.3/lib/foo.rb" ]
+    test "should format installed gems correctly" do
+      @backtrace = [ "#{Gem.path[0]}/gems/nosuchgem-1.2.3/lib/foo.rb" ]
       @result = @cleaner.clean(@backtrace)
       assert_equal "nosuchgem (1.2.3) lib/foo.rb", @result[0]
     end
-  end
 
+    test "should format installed gems not in Gem.default_dir correctly" do
+      @target_dir = Gem.path.detect { |p| p != Gem.default_dir }
+      # skip this test if default_dir is the only directory on Gem.path
+      if @target_dir
+        @backtrace = [ "#{@target_dir}/gems/nosuchgem-1.2.3/lib/foo.rb" ]
+        @result = @cleaner.clean(@backtrace)
+        assert_equal "nosuchgem (1.2.3) lib/foo.rb", @result[0]
+      end
+    end
+  end
 end