pit: test added

Closes Homebrew/homebrew#39033.

Signed-off-by: Tim D. Smith <git@tim-smith.us>

Formula/pit.rb

@@ -1,12 +1,39 @@
-require 'formula'
-
 class Pit < Formula
-  homepage 'https://github.com/michaeldv/pit'
-  url 'https://github.com/michaeldv/pit/archive/0.1.0.tar.gz'
-  sha1 '867698a2ef4d01587d81fe89dfd0e549d5b42e49'
+  homepage "https://github.com/michaeldv/pit"
+  url "https://github.com/michaeldv/pit/archive/0.1.0.tar.gz"
+  sha256 "ddf78b2734c6dd3967ce215291c3f2e48030e0f3033b568eb080a22f041c7a0e"
+
+  head "https://github.com/michaeldv/pit.git"
+
+  # upstream commit to allow PREFIX-ed installs
+  stable do
+    patch do
+      url "https://github.com/michaeldv/pit/commit/f64978d6c2628e1d4897696997b551f6b186d4bc.diff"
+      sha256 "3f5fdb043193d06b30c895e476d5a323aa1c5a28c50f9eef7b5f5b5200550f3b"
+    end
+
+    # upstream commit to fix a segfault when using absolute paths
+    patch do
+      url "https://github.com/michaeldv/pit/commit/e378582f4d04760d1195675ab034aac5d7908d8d.diff"
+      sha256 "09a9c37c5c9d963f21fae26f9617bf6698d8cb8e70ea756f16c2e9a8f5e7a1cd"
+    end
+
+    # upstream commit to return 0 on success instead of 1
+    patch do
+      url "https://github.com/michaeldv/pit/commit/5d81148349cc442d81cc98779a4678f03f59df67.diff"
+      sha256 "be059f88fe0759e451817b74919670be9fb5b193738c8574a6faa34baefada67"
+    end
+  end
 
   def install
+    bin.mkpath
+
     system "make"
-    bin.install "bin/pit"
+    system "make", "test"
+    system "make", "install", "PREFIX=#{prefix}"
+  end
+
+  test do
+    system "#{bin}/pit", "init"
   end
 end