ext_conf_builder.rb: install via temporary directory

* lib/rubygems/ext/ext_conf_builder.rb (Gem::Ext::ExtConfBuilder.build):
  fix for unusal cases again.  install to a temporary directory once
  and move instaled files to the destination directory, if it is same
  as the current directory.  [Bug #7698]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39579 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/test/rubygems/test_gem_installer.rb b/test/rubygems/test_gem_installer.rb
index fcbe081593..cf35a534b9 100644
--- a/test/rubygems/test_gem_installer.rb
+++ b/test/rubygems/test_gem_installer.rb
@@ -1038,7 +1038,17 @@ gem 'other', version
       RUBY
     end
 
+    Dir.mkdir(File.join("lib", @spec.name))
+    rb2 = File.join("lib", @spec.name, "#{@spec.name}.rb")
+    @spec.files << rb2
+    write_file File.join(@tempdir, rb2) do |io|
+      io.write <<-RUBY
+        # #{@spec.name}/#{@spec.name}.rb
+      RUBY
+    end
+
     assert !File.exist?(File.join(@spec.gem_dir, rb))
+    assert !File.exist?(File.join(@spec.gem_dir, rb2))
     use_ui @ui do
       path = Gem::Package.build @spec
 
@@ -1046,6 +1056,7 @@ gem 'other', version
       @installer.install
     end
     assert File.exist?(File.join(@spec.gem_dir, rb))
+    assert File.exist?(File.join(@spec.gem_dir, rb2))
   end
 
   def test_install_extension_flat