Exclude spec needing shebang support on Windows

Author: eregon

core/process/spawn_spec.rb

@@ -212,21 +212,23 @@
     end.should output_to_fd("nil\n")
   end
 
-  it "uses the passed env['PATH'] to search the executable" do
-    dir = tmp("spawn_path_dir")
-    mkdir_p dir
-    begin
-      exe = 'process-spawn-executable-in-path'
-      path = "#{dir}/#{exe}"
-      File.write(path, "#!/bin/sh\necho $1")
-      File.chmod(0755, path)
-
-      env = { "PATH" => "#{dir}#{File::PATH_SEPARATOR}#{ENV['PATH']}" }
-      Process.wait Process.spawn(env, exe, 'OK', out: @name)
-      $?.should.success?
-      File.read(@name).should == "OK\n"
-    ensure
-      rm_r dir
+  platform_is_not :windows do
+    it "uses the passed env['PATH'] to search the executable" do
+      dir = tmp("spawn_path_dir")
+      mkdir_p dir
+      begin
+        exe = 'process-spawn-executable-in-path'
+        path = "#{dir}/#{exe}"
+        File.write(path, "#!/bin/sh\necho $1")
+        File.chmod(0755, path)
+
+        env = { "PATH" => "#{dir}#{File::PATH_SEPARATOR}#{ENV['PATH']}" }
+        Process.wait Process.spawn(env, exe, 'OK', out: @name)
+        $?.should.success?
+        File.read(@name).should == "OK\n"
+      ensure
+        rm_r dir
+      end
     end
   end