Use assert_predicate

1 files changed, 12 insertions, 11 deletions

diff --git a/Library/Homebrew/test/test_formula_install.rb b/Library/Homebrew/test/test_formula_install.rb
index c75d18440..8cd11045e 100644
--- a/Library/Homebrew/test/test_formula_install.rb
+++ b/Library/Homebrew/test/test_formula_install.rb
@@ -24,31 +24,32 @@ class InstallTests < Homebrew::TestCase
       keg.uninstall
     end
 
-    assert !keg.exist?
-    assert !f.installed?
+    refute_predicate keg, :exist?
+    refute_predicate f, :installed?
   end
 
   def test_a_basic_install
     f=TestBall.new
 
-    assert !f.installed?
+    refute_predicate f, :installed?
 
     temporary_install f do
-
       # Test that things made it into the Keg
-      assert f.bin.directory?
+      assert_predicate f.bin, :directory?
       assert_equal 3, f.bin.children.length
-      libexec=f.prefix+'libexec'
-      assert libexec.directory?
+
+      libexec = f.prefix+'libexec'
+      assert_predicate libexec, :directory?
       assert_equal 1, libexec.children.length
-      assert !(f.prefix+'main.c').exist?
-      assert f.installed?
+
+      refute_predicate f.prefix+'main.c', :exist?
+      assert_predicate f, :installed?
 
       # Test that things make it into the Cellar
-      keg=Keg.new f.prefix
+      keg = Keg.new f.prefix
       keg.link
       assert_equal 3, HOMEBREW_PREFIX.children.length
-      assert((HOMEBREW_PREFIX+'bin').directory?)
+      assert_predicate HOMEBREW_PREFIX+'bin', :directory?
       assert_equal 3, (HOMEBREW_PREFIX+'bin').children.length
     end
   end