Raising exception if fixture file can't be found

activerecord/lib/active_record/fixtures.rb

@@ -24,6 +24,8 @@ class FixtureClassNotFound < StandardError #:nodoc:
   end
 end
 
+class FixturesFileNotFound < StandardError; end
+
 # Fixtures are a way of organizing data that you want to test against; in short, sample data.
 #
 # = Fixture formats
@@ -696,6 +698,8 @@ def read_fixture_files
         read_yaml_fixture_files
       elsif File.file?(csv_file_path)
         read_csv_fixture_files
+      else
+        raise FixturesFileNotFound, "Could not find #{yaml_file_path} or #{csv_file_path}"
       end
     end
 

activerecord/test/cases/fixtures_test.rb

@@ -153,6 +153,17 @@ def test_empty_yaml_fixture_with_a_comment_in_it
     assert_not_nil Fixtures.new( Account.connection, "companies", 'Company', FIXTURES_ROOT + "/naked/yml/companies")
   end
 
+  def test_nonexistent_fixture_file
+    nonexistent_fixture_path = FIXTURES_ROOT + "/imnothere"
+
+    #sanity check to make sure that this file never exists
+    assert Dir[nonexistent_fixture_path+"*"].empty?
+
+    assert_raise(FixturesFileNotFound) do
+      Fixtures.new( Account.connection, "companies", 'Company', nonexistent_fixture_path)
+    end
+  end
+
   def test_dirty_dirty_yaml_file
     assert_raise(Fixture::FormatError) do
       Fixtures.new( Account.connection, "courses", 'Course', FIXTURES_ROOT + "/naked/yml/courses")