Fix some test failures by simplifying how the app root of the test fixture is found.

Author: chriseppstein

test/sass_rails_logger_test.rb

@@ -8,11 +8,9 @@ class SassRailsLoggerTest < Sass::Rails::TestCase
     end
   end
 
-  [:debug, :warn, :info, :error, :trace].each do |level|
-    test "sending a #{level} message to the sass logger writes to the environment log file" do
-      within_rails_app "scss_project" do
-        app_root = runcmd 'rails runner "print Rails.root"'
-
+  test "sending a log messages to the sass logger writes to the environment log file" do
+    within_rails_app "scss_project" do |app_root|
+      [:debug, :warn, :info, :error, :trace].each do |level|
         message = "[#{level}]: sass message"
         runcmd %{rails runner "Sass::logger.log_level = :#{level}; Sass::logger.log(:#{level}, %Q|#{message}|)"}
 

test/support/sass_rails_test_case.rb

@@ -66,10 +66,9 @@ def within_rails_app(name, without_gems = [], gem_options = $gem_options)
       Dir.chdir(tmpdir) do
         gem_options.each {|name, options| modify_gem_entry name, options}
         without_gems.each {|name| remove_gem name}
-        puts File.read("Gemfile")
         FileUtils.rm("Gemfile.lock")
         runcmd "bundle install --verbose"
-        yield
+        yield tmpdir
       end
     end
   end