test_keg: port to generic layer.

Library/Homebrew/test/test_keg.rb

@@ -304,35 +304,4 @@ class LinkTests < Homebrew::TestCase
     keg.unlink
     keg.uninstall
   end
-
-  def test_mach_o_files_skips_hardlinks
-    a = HOMEBREW_CELLAR/"a/1.0"
-    (a/"lib").mkpath
-    FileUtils.cp dylib_path("i386"), a/"lib/i386.dylib"
-    FileUtils.ln a/"lib/i386.dylib", a/"lib/i386_link.dylib"
-
-    keg = Keg.new(a)
-    keg.link
-
-    assert_equal 1, keg.mach_o_files.size
-  ensure
-    keg.unlink
-    keg.uninstall
-  end
-
-  def test_mach_o_files_isnt_confused_by_symlinks
-    a = HOMEBREW_CELLAR/"a/1.0"
-    (a/"lib").mkpath
-    FileUtils.cp dylib_path("i386"), a/"lib/i386.dylib"
-    FileUtils.ln a/"lib/i386.dylib", a/"lib/i386_link.dylib"
-    FileUtils.ln_s a/"lib/i386.dylib", a/"lib/1.dylib"
-
-    keg = Keg.new(a)
-    keg.link
-
-    assert_equal 1, keg.mach_o_files.size
-  ensure
-    keg.unlink
-    keg.uninstall
-  end
 end

Library/Homebrew/test/test_os_mac_keg.rb

@@ -0,0 +1,69 @@
+require "testing_env"
+require "keg"
+require "stringio"
+
+class OSMacLinkTests < Homebrew::TestCase
+  include FileUtils
+
+  def setup
+    keg = HOMEBREW_CELLAR.join("foo", "1.0")
+    keg.join("bin").mkpath
+
+    %w[hiworld helloworld goodbye_cruel_world].each do |file|
+      touch keg.join("bin", file)
+    end
+
+    @keg = Keg.new(keg)
+    @dst = HOMEBREW_PREFIX.join("bin", "helloworld")
+    @nonexistent = Pathname.new("/some/nonexistent/path")
+
+    @mode = OpenStruct.new
+
+    @old_stdout = $stdout
+    $stdout = StringIO.new
+
+    mkpath HOMEBREW_PREFIX/"bin"
+    mkpath HOMEBREW_PREFIX/"lib"
+  end
+
+  def teardown
+    @keg.unlink
+    @keg.uninstall
+
+    $stdout = @old_stdout
+
+    rmtree HOMEBREW_PREFIX/"bin"
+    rmtree HOMEBREW_PREFIX/"lib"
+  end
+
+  def test_mach_o_files_skips_hardlinks
+    a = HOMEBREW_CELLAR/"a/1.0"
+    (a/"lib").mkpath
+    FileUtils.cp dylib_path("i386"), a/"lib/i386.dylib"
+    FileUtils.ln a/"lib/i386.dylib", a/"lib/i386_link.dylib"
+
+    keg = Keg.new(a)
+    keg.link
+
+    assert_equal 1, keg.mach_o_files.size
+  ensure
+    keg.unlink
+    keg.uninstall
+  end
+
+  def test_mach_o_files_isnt_confused_by_symlinks
+    a = HOMEBREW_CELLAR/"a/1.0"
+    (a/"lib").mkpath
+    FileUtils.cp dylib_path("i386"), a/"lib/i386.dylib"
+    FileUtils.ln a/"lib/i386.dylib", a/"lib/i386_link.dylib"
+    FileUtils.ln_s a/"lib/i386.dylib", a/"lib/1.dylib"
+
+    keg = Keg.new(a)
+    keg.link
+
+    assert_equal 1, keg.mach_o_files.size
+  ensure
+    keg.unlink
+    keg.uninstall
+  end
+end