Add tests for new bottling hooks.

Closes Homebrew/homebrew#27890.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Library/Homebrew/test/test_bottle_hooks.rb

@@ -0,0 +1,40 @@
+require 'testing_env'
+require 'formula_installer'
+require 'hooks/bottles'
+
+class BottleHookTests < Test::Unit::TestCase
+  class FormulaDouble
+    def bottle; end
+    def local_bottle_path; end
+    def some_random_method; true; end
+  end
+
+  def setup
+    @fi = FormulaInstaller.new FormulaDouble.new
+  end
+
+  def test_has_bottle
+    Homebrew::Hooks::Bottles.setup_formula_has_bottle do |f|
+      f.some_random_method
+    end
+    assert_equal true, @fi.pour_bottle?
+  end
+
+  def test_has_no_bottle
+    Homebrew::Hooks::Bottles.setup_formula_has_bottle do |f|
+      !f.some_random_method
+    end
+    assert_equal false, @fi.pour_bottle?
+  end
+
+  def test_pour_formula_bottle
+    Homebrew::Hooks::Bottles.setup_formula_has_bottle do |f|
+      true
+    end
+
+    Homebrew::Hooks::Bottles.setup_pour_formula_bottle do |f|
+      f.some_random_method
+    end
+    @fi.pour
+  end
+end