wdiff: add test

Closes Homebrew/legacy-homebrew#28382. Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
Homebrew · Apr 14, 2014 · ee8b62c · ee8b62c
1 parent 9a8855f
commit ee8b62c
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/Formula/wdiff.rb b/Formula/wdiff.rb
@@ -14,4 +14,16 @@ def install
                           "--enable-experimental"
     system "make install"
   end
+
+  test do
+    a = testpath/"a.txt"
+    a.write "The missing package manager for OS X"
+
+    b = testpath/"b.txt"
+    b.write "The package manager for OS X"
+
+    out = `#{bin}/wdiff #{a} #{b}`
+    assert_equal "The [-missing-] package manager for OS X", out
+    assert_equal 1, $?.exitstatus
+  end
 end