Updated build tests to support Windows.

Author: jdantonio

build-tests/platform_helpers.rb

@@ -1,5 +1,10 @@
 require 'rbconfig'
 
+def windows?
+  host_os = RbConfig::CONFIG['host_os']
+  host_os =~ /mswin32/i || host_os =~ /mingw32/i
+end
+
 def mri?(engine = RUBY_ENGINE)
   engine == 'ruby'
 end

build-tests/runner.rb

@@ -33,8 +33,8 @@
 INSTALL_RSPEC_COMMAND = 'gem install rspec'
 
 UNINSTALL_GEMS_COMMAND = <<-CMD
-gem uninstall -q -a -I concurrent-ruby-ext
-gem uninstall -q -a -I concurrent-ruby
+gem uninstall -q -a -I concurrent-ruby-ext && \
+gem uninstall -q -a -I concurrent-ruby && \
 gem uninstall -q -a -I ref
 CMD
 
@@ -81,7 +81,11 @@ def run_test_suite(files, ext, platform = '')
   ok = system(cmd)
 
   files.each do |file|
-    cmd = "TEST_PLATFORM='#{test_platform}' #{RSPEC} #{file}"
+    if windows?
+      cmd = "set TEST_PLATFORM='#{test_platform}' && #{RSPEC} #{file}"
+    else
+      cmd = "TEST_PLATFORM='#{test_platform}' #{RSPEC} #{file}"
+    end
     ok = system(cmd)
   end