1 files changed, 38 insertions, 0 deletions
diff --git a/test/rubygems/test_gem_source_specific_file.rb b/test/rubygems/test_gem_source_specific_file.rb
index 1d8351781f..8ccbe50c91 100644
--- a/test/rubygems/test_gem_source_specific_file.rb
+++ b/test/rubygems/test_gem_source_specific_file.rb
@@ -30,4 +30,42 @@ class TestGemSourceSpecificFile < Gem::TestCase
   def test_download
     assert_equal @a_gem, @sf.download(@a)
   end
+
+  def test_spaceship
+    a1 = quick_gem 'a', '1'
+    util_build_gem a1
+
+    remote    = Gem::Source.new @gem_repo
+    specific  = Gem::Source::SpecificFile.new a1.cache_file
+    installed = Gem::Source::Installed.new
+    local     = Gem::Source::Local.new
+
+    assert_equal( 0, specific. <=>(specific),  'specific  <=> specific')
+
+    assert_equal(-1, remote.   <=>(specific),  'remote    <=> specific')
+    assert_equal( 1, specific. <=>(remote),    'specific  <=> remote')
+
+    assert_equal(-1, specific. <=>(local),     'specific  <=> local')
+    assert_equal( 1, local.    <=>(specific),  'local     <=> specific')
+
+    assert_equal(-1, specific. <=>(installed), 'specific  <=> installed')
+    assert_equal( 1, installed.<=>(specific),  'installed <=> specific')
+
+    a2 = quick_gem 'a', '2'
+    util_build_gem a2
+
+    b1 = quick_gem 'b', '1'
+    util_build_gem b1
+
+    a1_source = specific
+    a2_source = Gem::Source::SpecificFile.new a2.cache_file
+    b1_source = Gem::Source::SpecificFile.new b1.cache_file
+
+    assert_nil       a1_source.<=>(b1_source), 'a1_source <=> b1_source'
+
+    assert_equal(-1, a1_source.<=>(a2_source), 'a1_source <=> a2_source')
+    assert_equal( 0, a1_source.<=>(a1_source), 'a1_source <=> a1_source')
+    assert_equal( 1, a2_source.<=>(a1_source), 'a2_source <=> a1_source')
+  end
+
 end