DEV: autospec chrome check was failing on macOS (#7649)

lib/autospec/qunit_runner.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require "demon/rails_autospec"
+require 'rbconfig'
 
 module Autospec
 
@@ -116,13 +117,16 @@ def stop
     private
 
     def ensure_chrome_is_installed
-
-      binary = "google-chrome-stable" if system("command -v google-chrome-stable >/dev/null;")
+      if RbConfig::CONFIG['host_os'][/darwin|mac os/]
+        binary = "/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome"
+      elsif system("command -v google-chrome-stable >/dev/null;")
+        binary = "google-chrome-stable"
+      end
       binary ||= "google-chrome" if system("command -v google-chrome >/dev/null;")
 
       raise ChromeNotInstalled.new if !binary
 
-      if Gem::Version.new(`#{binary} --version`.match(/[\d\.]+/)[0]) < Gem::Version.new("59")
+      if Gem::Version.new(`\"#{binary}\" --version`.match(/[\d\.]+/)[0]) < Gem::Version.new("59")
         raise "Chrome 59 or higher is required"
       end
     end