Move ENV tests to separate file.

Library/Homebrew/test/test_ENV.rb

+require 'testing_env'
+require 'utils'
+require 'brew.h'
+require 'extend/ENV'
+ENV.extend(HomebrewEnvExtension)
+  
+class EnvironmentTests < Test::Unit::TestCase
+  def test_ENV_options
+    ENV.gcc_4_0
+    ENV.gcc_4_2
+    ENV.O3
+    ENV.minimal_optimization
+    ENV.no_optimization
+    ENV.libxml2
+    ENV.x11
+    ENV.enable_warnings
+    assert !ENV.cc.empty?
+    assert !ENV.cxx.empty?
+  end
+end

Library/Homebrew/test/test_bucket.rb

@@ -175,20 +175,4 @@ class BeerTasting < Test::Unit::TestCase
     assert_equal 'foo-0.1', foo1.stem
     assert_equal '0.1', foo1.version
   end
-  
-  def test_ENV_options
-    require 'extend/ENV'
-    ENV.extend(HomebrewEnvExtension)
-
-    ENV.gcc_4_0
-    ENV.gcc_4_2
-    ENV.O3
-    ENV.minimal_optimization
-    ENV.no_optimization
-    ENV.libxml2
-    ENV.x11
-    ENV.enable_warnings
-    assert !ENV.cc.empty?
-    assert !ENV.cxx.empty?
-  end
 end

Library/Homebrew/test/tests

@@ -23,6 +23,7 @@ ruby test_external_deps.rb $*
 ruby test_pathname_install.rb $*
 ruby test_utils.rb $*
 ruby test_ARGV.rb $*
+ruby test_ENV.rb $*
 
 # Update tests (only seem to work for mxcl)
 ruby test_updater.rb $*