Convert Reinstall test to spec.

Library/Homebrew/cask/test/cask/cli/reinstall_test.rb → Library/Homebrew/cask/spec/cask/cli/reinstall_spec.rb

-require "test_helper"
+require "spec_helper"
 
 describe Hbc::CLI::Reinstall do
   it "allows reinstalling a Cask" do
     shutup do
       Hbc::CLI::Install.run("local-transmission")
     end
-    Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-transmission.rb").must_be :installed?
+    expect(Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-transmission.rb")).to be_installed
 
     shutup do
       Hbc::CLI::Reinstall.run("local-transmission")
     end
-    Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-transmission.rb").must_be :installed?
+    expect(Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-transmission.rb")).to be_installed
   end
 
   it "allows reinstalling a non installed Cask" do
-    Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-transmission.rb").wont_be :installed?
+    expect(Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-transmission.rb")).not_to be_installed
 
     shutup do
       Hbc::CLI::Reinstall.run("local-transmission")
     end
-    Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-transmission.rb").must_be :installed?
+    expect(Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-transmission.rb")).to be_installed
   end
 end