Implement Ruby version faker.

During cross compilation, rake-compiler will create a fake.rb
file to mimic a different version than the one used to execute
the build process.

Yet still, there are some changes between 1.9 and 1.8 not yet
ironed.

1 files changed, 22 insertions, 8 deletions

diff --git a/spec/lib/rake/extensiontask_spec.rb b/spec/lib/rake/extensiontask_spec.rb
index e0d7eae..eb385b6 100644
--- a/spec/lib/rake/extensiontask_spec.rb
+++ b/spec/lib/rake/extensiontask_spec.rb
@@ -261,6 +261,8 @@ describe Rake::ExtensionTask do
         @config_file = File.expand_path("~/.rake-compiler/config.yml")
         @ruby_ver = RUBY_VERSION
         @config_path = mock_config_yml["rbconfig-#{@ruby_ver}"]
+
+        File.stub!(:open).and_yield(mock_fake_rb)
       end
 
       it 'should not generate an error if no rake-compiler configuration exist' do
@@ -294,16 +296,17 @@ describe Rake::ExtensionTask do
         config = mock(Hash)
         config.should_receive(:[]).with("rbconfig-1.9.1").and_return('/path/to/ruby/1.9.1/rbconfig.rb')
         YAML.stub!(:load_file).and_return(config)
-        begin
-          ENV['RUBY_CC_VERSION'] = '1.9.1'
-          Rake::ExtensionTask.new('extension_one') do |ext|
-            ext.cross_compile = true
-          end
-        ensure
-          ENV.delete('RUBY_CC_VERSION')
+
+        ENV['RUBY_CC_VERSION'] = '1.9.1'
+        Rake::ExtensionTask.new('extension_one') do |ext|
+          ext.cross_compile = true
         end
       end
 
+      after :each do
+        ENV.delete('RUBY_CC_VERSION')
+      end
+
       describe "(cross for 'universal-unknown' platform)" do
         before :each do
           @ext = Rake::ExtensionTask.new('extension_one', @spec) do |ext|
@@ -312,6 +315,12 @@ describe Rake::ExtensionTask do
           end
         end
 
+        describe 'fake' do
+          it 'should chain fake task to Makefile generation' do
+            Rake::Task['tmp/universal-unknown/extension_one/Makefile'].prerequisites.should include('tmp/universal-unknown/extension_one/fake.rb')
+          end
+        end
+
         describe 'rbconfig' do
           it 'should chain rbconfig tasks to Makefile generation' do
             Rake::Task['tmp/universal-unknown/extension_one/Makefile'].prerequisites.should include('tmp/universal-unknown/extension_one/rbconfig.rb')
@@ -359,7 +368,12 @@ describe Rake::ExtensionTask do
   def mock_config_yml
     {
       'rbconfig-1.8.6' => '/some/path/version/1.8/to/rbconfig.rb',
-      'rbconfig-1.9.1' => '/some/path/version/1.9.1/to/rbconfig.rb'
+      'rbconfig-1.9.1' => '/some/path/version/1.9.1/to/rbconfig.rb',
+      'rbconfig-3.0.0' => '/some/fake/version/3.0.0/to/rbconfig.rb'
     }
   end
+
+  def mock_fake_rb
+    mock(File, :write => 45)
+  end
 end