Add ruby bindings and rspec tests

bindings/ruby/lib/ecutools.rb

@@ -0,0 +1,37 @@
+require 'ffi'
+require 'pp'
+
+class EcutoolsError < StandardError; end
+
+module Ecutools; end
+
+module Ecutools::J2534
+  extend FFI::Library
+  ffi_lib 'c'
+  #ffi_lib '/usr/local/lib/libj2534.so'
+  ffi_lib '../../.libs/libj2534.so'
+  attach_function :PassThruScanForDevices, [ :pointer ], :long
+  attach_function :PassThruOpen, [ :pointer, :pointer ], :long
+end
+
+module Ecutools
+
+  class Api
+
+    def PassThruScanForDevices
+      pDeviceCount = FFI::MemoryPointer.new(:ulong, 1)
+      raise 'PassThruScanForDevices error' if Ecutools::J2534.PassThruScanForDevices(pDeviceCount) != 0
+      pDeviceCount.read_ulong
+    end
+
+    def PassThruOpen(name, deviceId)
+      pName = FFI::MemoryPointer.from_string(name)
+      pDeviceId = FFI::MemoryPointer.new(:ulong, 1)
+      rc = Ecutools::J2534.PassThruOpen(pName, pDeviceId)
+      raise EcutoolsError, "PassThruOpen: error=#{rc}" unless rc == 0
+      rc
+    end
+
+  end
+
+end

bindings/ruby/spec/ecutools_api_integration_spec.rb

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+require 'spec_helper'
+
+describe Ecutools::Api do
+
+  let(:ecutools) { Ecutools::Api.new }
+  let(:deviceName) { "J2534-1:ecutools"}
+  let(:deviceId) { 420 }
+
+  it 'PassThruScanForDevices returns 1 device' do
+    expect(ecutools.PassThruScanForDevices).to eq(1)
+  end
+
+  it 'PassThruOpen returns success when it finds VirtualDataLogger' do
+    expect(ecutools.PassThruOpen("VirtualDataLogger", deviceId)).to eq(0)
+  end
+
+  it 'PassThruOpen throws EcutoolsError when it doesnt find the requested device' do
+    expect { ecutools.PassThruOpen(deviceName, deviceId) }.to raise_error EcutoolsError
+  end
+
+end

bindings/ruby/spec/spec_helper.rb

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+$LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
+require 'ecutools'