#
# This file is part of ruby-ffi.
# For licensing, see LICENSE.SPECS
#

require File.expand_path(File.join(File.dirname(__FILE__), "spec_helper"))

describe "FFI::Platform::LIBSUFFIX" do
  case TestLibrary::OS
  when "linux"
    it "returns 'so'" do
      expect(FFI::Platform::LIBSUFFIX).to eq('so')
    end
  when "windows"
    it "returns 'dll'" do
      expect(FFI::Platform::LIBSUFFIX).to eq('dll')
    end
  when "darwin"
    it "returns 'dylib'" do
      expect(FFI::Platform::LIBSUFFIX).to eq('dylib')
    end
  end
end

describe "FFI::Platform::IS_WINDOWS" do
  case TestLibrary::OS
  when "linux"
    it "returns false" do
      expect(FFI::Platform::IS_WINDOWS).to be false
    end
  when "windows"
    it "returns true" do
      expect(FFI::Platform::IS_WINDOWS).to be true
    end
  when "darwin"
    it "returns false" do
      expect(FFI::Platform::IS_WINDOWS).to be false
    end
  end
end

describe "FFI::Platform::ARCH" do
  it "returns the architecture type" do
    expect(FFI::Platform::ARCH).to eq(TestLibrary::CPU)
  end
end

describe "FFI::Platform::OS" do
  case TestLibrary::OS
  when "linux"
    it "returns 'linux' as a string" do
      expect(FFI::Platform::OS).to eq('linux')
    end
  when "windows"
    it "returns 'windows' as a string" do
      expect(FFI::Platform::OS).to eq('windows')
    end
  when "darwin"
    it "returns 'darwin' as a string" do
      expect(FFI::Platform::OS).to eq('darwin')
    end
  end
end

describe "FFI::Platform.windows?" do
  case TestLibrary::OS
  when "linux"
    it "returns false" do
      expect(FFI::Platform.windows?).to be false
    end
  when "windows"
    it "returns true" do
      expect(FFI::Platform.windows?).to be true
    end
  when "darwin"
    it "returns false" do
      expect(FFI::Platform.windows?).to be false
    end
  end
end

describe "FFI::Platform.mac?" do
  case TestLibrary::OS
  when "linux"
    it "returns false" do
      expect(FFI::Platform.mac?).to be false
    end
  when "windows"
    it "returns false" do
      expect(FFI::Platform.mac?).to be false
    end
  when "darwin"
    it "returns true" do
      expect(FFI::Platform.mac?).to be true
    end
  end
end

describe "FFI::Platform.unix?" do
  case TestLibrary::OS
  when "linux"
    it "returns true" do
      expect(FFI::Platform.unix?).to be true
    end
  when "windows"
    it "returns false" do
      expect(FFI::Platform.unix?).to be false
    end
  when "darwin"
    it "returns true" do
      expect(FFI::Platform.unix?).to be true
    end
  end

  describe "FFI::Platform::LITTLE_ENDIAN" do
    it "returns 1234" do
      expect(FFI::Platform::LITTLE_ENDIAN).to eq(1234)
    end
  end

  describe "FFI::Platform::BIG_ENDIAN" do
    it "returns 4321" do
      expect(FFI::Platform::BIG_ENDIAN).to eq(4321)
    end
  end

  describe "FFI::Platform::BYTE_ORDER" do
    it "returns the current byte order" do
      if [1234].pack("I") == [1234].pack("N")
        order = FFI::Platform::BIG_ENDIAN
      else
        order = FFI::Platform::LITTLE_ENDIAN
      end
      expect(FFI::Platform::BYTE_ORDER).to eq(order)
    end
  end

  it "should have shareable constants for Ractor", :ractor do
    res = Ractor.new do
      [
        FFI::Platform::OS,
        FFI::Platform::CPU,
        FFI::Platform::ARCH,
        FFI::Platform::OS,
      ]
    end.take

    expect( res.size ).to be > 0
  end
end