GPGME::Engine reviewed and GPGME::Engine.home_dir= added. Used in tests.

lib/gpgme/engine.rb

@@ -13,9 +13,9 @@ module GPGME
       # @return [Boolean] true if the engine is installed.
       #
       # @example
-      #   GPGME.engine_check_version(GPGME::PROTOCOL_OpenPGP) # => true
+      #   GPGME::Engine.check_version(GPGME::PROTOCOL_OpenPGP) # => true
       #
-      def engine_check_version(proto)
+      def check_version(proto)
         err = GPGME::gpgme_engine_check_version(proto)
         exc = GPGME::error_to_exception(err)
         !exc
@@ -25,14 +25,14 @@ module GPGME
       # Return an array of {GPGME::EngineInfo} structures of enabled engines.
       #
       # @example
-      #   GPGME.engine_info.first
+      #   GPGME::Engine.engine_info.first
       #   # => #<GPGME::EngineInfo:0x00000100d4fbd8
       #          @file_name="/usr/local/bin/gpg",
       #          @protocol=0,
       #          @req_version="1.3.0",
       #          @version="1.4.11">
       #
-      def engine_info
+      def info
         rinfo = []
         GPGME::gpgme_get_engine_info(rinfo)
         rinfo
@@ -52,14 +52,25 @@ module GPGME
       #   The directory name of the configuration directory.
       #
       # @example
-      #   TODO how do we use this?
+      #   GPGME::Engine.set
       #
-      def set_engine_info(proto, file_name, home_dir)
+      def set_info(proto, file_name, home_dir)
         err = GPGME::gpgme_set_engine_info(proto, file_name, home_dir)
         exc = GPGME::error_to_exception(err)
         raise exc if exc
       end
 
+      ##
+      # Sets the home dir for the configuration options. This way one could,
+      # for example, load the keys from a customized keychain.
+      #
+      # @example
+      #   GPGME::Engine.home_dir = '/tmp'
+      #
+      def home_dir=(home_dir)
+        current = info.first
+        set_info current.protocol, current.file_name, home_dir
+      end
     end # class << self
   end # class Engine
 end # module GPGME

test/test_helper.rb

@@ -22,11 +22,11 @@ end
 
 def remove_keys
   KEYS.each do |key|
-    delete_key(key)
+    remove_key(key)
   end
 end
 
-def delete_key(key)
+def remove_key(key)
   GPGME::Key.find(:public, key[:sha]).each do |k|
     k.delete!(true)
   end
@@ -43,7 +43,7 @@ end
 #   end
 def with_keys(size, &block)
   KEYS.last(KEYS.size - size).each do |key|
-    delete_key key
+    remove_key key
   end
 
   begin
@@ -61,13 +61,12 @@ def with_password_key(&block)
   begin
     yield
   ensure
-    delete_key PASSWORD_KEY
+    remove_key PASSWORD_KEY
   end
 end
 
+# We use a different home directory for the keys to not disturb current
+# installation
+require 'tmpdir'
+GPGME::Engine.home_dir = Dir.tmpdir
 import_keys
-
-# Remove the tests key at the end of test execution
-MiniTest::Unit.after_tests do
-  remove_keys
-end