Refactor Hbc::UrlChecker test.

Library/Homebrew/cask/lib/hbc/url_checker.rb

@@ -1,4 +1,5 @@
 require "hbc/checkable"
+require "hbc/fetcher"
 
 module Hbc
   class UrlChecker

Library/Homebrew/cask/test/cask/url_checker_test.rb

@@ -2,32 +2,50 @@ require "test_helper"
 
 describe Hbc::UrlChecker do
   describe "request processing" do
-    it "adds an error if response is empty" do
-      cask = Hbc.load("basic-cask")
-      Hbc::FakeFetcher.fake_response_for(cask.url, "")
-      checker = Hbc::UrlChecker.new(cask, Hbc::FakeFetcher)
+    let(:cask) { Hbc.load("basic-cask") }
+    let(:checker) { Hbc::UrlChecker.new(cask) }
+    let(:with_stubbed_fetcher) {
+      lambda { |&block|
+        Hbc::Fetcher.stub(:head, response) do
           checker.run
-      checker.errors.must_include "timeout while requesting #{cask.url}"
+          instance_eval(&block)
+        end
+      }
+    }
+
+    describe "with an empty response" do
+      let(:response) { "" }
+
+      it "adds an error" do
+        with_stubbed_fetcher.call do
+          expect(checker.errors).must_include("timeout while requesting #{cask.url}")
+        end
+      end
     end
 
-    it "properly populates the response code and headers from an http response" do
-      cask = Hbc.load("basic-cask")
-
-      Hbc::FakeFetcher.fake_response_for(cask.url, <<-EOS.undent)
+    describe "with a valid http response" do
+      let(:response) {
+        <<-EOS.undent
           HTTP/1.1 200 OK
           Content-Type: application/x-apple-diskimage
           ETag: "b4208f3e84967be4b078ecaa03fba941"
           Content-Length: 23726161
           Last-Modified: Sun, 12 Aug 2012 21:17:21 GMT
         EOS
+      }
 
-      checker = Hbc::UrlChecker.new(cask, Hbc::FakeFetcher)
-      checker.run
-      checker.response_status.must_equal "HTTP/1.1 200 OK"
-      checker.headers.must_equal("Content-Type"   => "application/x-apple-diskimage",
+      it "properly populates the response code and headers" do
+        with_stubbed_fetcher.call do
+          expect(checker.errors).must_be_empty
+          expect(checker.response_status).must_equal("HTTP/1.1 200 OK")
+          expect(checker.headers).must_equal(
+            "Content-Type"   => "application/x-apple-diskimage",
             "ETag"           => '"b4208f3e84967be4b078ecaa03fba941"',
             "Content-Length" => "23726161",
-                                 "Last-Modified"  => "Sun, 12 Aug 2012 21:17:21 GMT")
+            "Last-Modified"  => "Sun, 12 Aug 2012 21:17:21 GMT"
+          )
+        end
+      end
     end
   end
 end

Library/Homebrew/cask/test/support/fake_fetcher.rb

@@ -1,39 +0,0 @@
-module Hbc
-  class FakeFetcher
-    def self.fake_response_for(url, response)
-      @responses[url] = response
-    end
-
-    def self.head(url)
-      @responses ||= {}
-      raise("no response faked for #{url.inspect}") unless @responses.key?(url)
-      @responses[url]
-    end
-
-    def self.init
-      @responses = {}
-    end
-
-    def self.clear
-      @responses = {}
-    end
-  end
-end
-
-module FakeFetcherHooks
-  def before_setup
-    super
-    Hbc::FakeFetcher.init
-  end
-
-  def after_teardown
-    super
-    Hbc::FakeFetcher.clear
-  end
-end
-
-module MiniTest
-  class Spec
-    include FakeFetcherHooks
-  end
-end

Library/Homebrew/cask/test/test_helper.rb

@@ -100,7 +100,6 @@ require "support/shared_examples"
 require "support/shared_examples/dsl_base.rb"
 require "support/shared_examples/staged.rb"
 
-require "support/fake_fetcher"
 require "support/fake_dirs"
 require "support/fake_system_command"
 require "support/cleanup"