[Added] install path for nuget dependencies [#172251374]

Signed-off-by: Vikram Yadav <vyadav@pivotal.io>

lib/license_finder/package_managers/nuget.rb

@@ -51,7 +51,9 @@ def assemblies
     def current_packages
       dependencies.each_with_object({}) do |dep, memo|
         licenses = license_urls(dep)
-        memo[dep.name] ||= NugetPackage.new(dep.name, dep.version, spec_licenses: licenses)
+        path = Dir.glob("#{Dir.home}/.nuget/packages/#{dep.name.downcase}/#{dep.version}").first
+
+        memo[dep.name] ||= NugetPackage.new(dep.name, dep.version, spec_licenses: licenses, install_path: path)
         memo[dep.name].groups << dep.assembly unless memo[dep.name].groups.include? dep.assembly
       end.values
     end

spec/lib/license_finder/package_managers/nuget_spec.rb

@@ -99,6 +99,9 @@ module LicenseFinder
         FileUtils.mkdir_p 'app/Assembly1/'
         FileUtils.mkdir_p 'app/Assembly1.Tests/'
         FileUtils.mkdir_p 'app/Assembly2/'
+        FileUtils.mkdir_p '.nuget/packages/gotodependency/4.84.4790.14417'
+        FileUtils.mkdir_p '.nuget/packages/obscuredependency/1.3.15'
+
         FileUtils.touch 'app/Assembly1/packages.config'
         FileUtils.touch 'app/Assembly1.Tests/packages.config'
         FileUtils.touch 'app/Assembly2/packages.config'
@@ -139,16 +142,25 @@ module LicenseFinder
         File.write('app/Assembly1/packages.config', assembly_1_packages)
         File.write('app/Assembly1.Tests/packages.config', assembly_1_tests_packages)
         File.write('app/Assembly2/packages.config', assembly_2_packages)
+
+        allow(Dir).to receive(:home).and_return('.')
       end
 
-      it 'lists all the packages used in an assembly' do
+      it 'lists all the packages used in an assembly with install paths' do
         nuget = Nuget.new project_path: Pathname.new('app')
         deps = %w[GoToDependency
                   ObscureDependency
                   OtherObscureDependency
                   TestFramework
                   CoolNewDependency]
+        install_paths = [
+          '/.nuget/packages/gotodependency/4.84.4790.14417',
+          '/.nuget/packages/obscuredependency/1.3.15',
+          nil
+        ]
+
         expect(nuget.current_packages.map(&:name).uniq).to match_array(deps)
+        expect(nuget.current_packages.map(&:install_path).uniq).to match_array(install_paths)
       end
 
       # cannot run on JRuby due to https://github.com/fakefs/fakefs/issues/303