(#2866) yum should support downgrade.

patch originally from Grzegorz Nosek with contributions on
the test from Oliver Hookins.

checks if the current version is greater than the should
version, if so, calls yum downgrade.

Reviewed-by: Matt Robinson

1 files changed, 13 insertions, 7 deletions

diff --git a/spec/unit/provider/package/yum_spec.rb b/spec/unit/provider/package/yum_spec.rb
index 09c81f72f..f6a99aa78 100644
--- a/spec/unit/provider/package/yum_spec.rb
+++ b/spec/unit/provider/package/yum_spec.rb
@@ -31,21 +31,27 @@ describe provider do
       @provider.expects(:yum).with('-d', '0', '-e', '0', '-y', :install, 'mypackage')
       @provider.install
     end
-    it "should use :install to update" do
+    it 'should use :install to update' do
       @provider.expects(:install)
       @provider.update
     end
-    it "should be able to set version" do
-      @resource.stubs(:should).with(:ensure).returns "1.2"
+    it 'should be able to set version' do
+      @resource.stubs(:should).with(:ensure).returns '1.2'
       @provider.expects(:yum).with('-d', '0', '-e', '0', '-y', :install, 'mypackage-1.2')
-      @provider.stubs(:query).returns :ensure => '1.2' 
+      @provider.stubs(:query).returns :ensure => '1.2'
+      @provider.install
+    end
+    it 'should be able to downgrade' do
+      @resource.stubs(:should).with(:ensure).returns '1.0'
+      @provider.expects(:yum).with('-d', '0', '-e', '0', '-y', :downgrade, 'mypackage-1.0')
+      @provider.stubs(:query).returns(:ensure => '1.2').then.returns(:ensure => '1.0')
       @provider.install
     end
   end
 
   describe 'when uninstalling' do
-    it "should use erase to purge" do
-      @provider.expects(:yum).with("-y", :erase, 'mypackage')
+    it 'should use erase to purge' do
+      @provider.expects(:yum).with('-y', :erase, 'mypackage')
       @provider.purge
     end
     it 'should use rpm to uninstall' do
@@ -54,7 +60,7 @@ describe provider do
     end
   end
 
-  it "should be versionable" do
+  it 'should be versionable' do
     provider.should be_versionable
   end
 end