fully parallelize the Preprocess builder

spec/rscons/builders/preprocess_spec.rb

@@ -1,48 +0,0 @@
-module Rscons
-  module Builders
-    describe Preprocess do
-
-      let(:env) {Environment.new}
-      subject {Preprocess.new}
-
-      it "supports overriding CC construction variable" do
-        cache = double(Cache)
-        command = %w[my_cpp -E -MMD -MF module.mf -o module.pp module.c]
-        expect(cache).to receive(:up_to_date?).with("module.pp", command, %w[module.c], env).and_return(false)
-        expect(cache).to receive(:mkdir_p).with(".")
-        expect(env).to receive(:execute).with("Preprocess module.pp", command).and_return(true)
-        expect(File).to receive(:exists?).with("module.mf").and_return(true)
-        expect(Environment).to receive(:parse_makefile_deps).with("module.mf", nil).and_return(%w[module.c one.h two.h])
-        expect(FileUtils).to receive(:rm_f).with("module.mf")
-        expect(cache).to receive(:register_build).with("module.pp", command, %w[module.c one.h two.h], env)
-
-        expect(subject.run("module.pp", ["module.c"], cache, env, "CC" => "my_cpp")).to eq("module.pp")
-      end
-
-      it "supports overriding CPP_CMD construction variable" do
-        cache = double(Cache)
-        command = %w[my_cpp module.c]
-        expect(cache).to receive(:up_to_date?).with("module.pp", command, %w[module.c], env).and_return(false)
-        expect(cache).to receive(:mkdir_p).with(".")
-        expect(env).to receive(:execute).with("Preprocess module.pp", command).and_return(true)
-        expect(File).to receive(:exists?).with("module.mf").and_return(true)
-        expect(Environment).to receive(:parse_makefile_deps).with("module.mf", nil).and_return(%w[module.c one.h two.h])
-        expect(FileUtils).to receive(:rm_f).with("module.mf")
-        expect(cache).to receive(:register_build).with("module.pp", command, %w[module.c one.h two.h], env)
-
-        expect(subject.run("module.pp", ["module.c"], cache, env, "CPP_CMD" => ["my_cpp", "${_SOURCES}"])).to eq("module.pp")
-      end
-
-      it "returns false if executing the preprocessor fails" do
-        cache = double(Cache)
-        command = %w[gcc -E -MMD -MF module.mf -o module.pp module.c]
-        expect(cache).to receive(:up_to_date?).with("module.pp", command, %w[module.c], env).and_return(false)
-        expect(cache).to receive(:mkdir_p).with(".")
-        expect(env).to receive(:execute).with("Preprocess module.pp", command).and_return(false)
-
-        expect(subject.run("module.pp", ["module.c"], cache, env, {})).to eq(false)
-      end
-
-    end
-  end
-end