(FACT-2699) Detect augeas from gem if augparse is not available.

lib/facter/resolvers/augeas_resolver.rb

@@ -28,12 +28,12 @@ def read_augeas_from_cli
         def read_augeas_from_gem
           require 'augeas'
 
-          return ::Augeas.create { |aug| aug.get('/augeas/version') } if ::Augeas.respond_to?(:create)
+          return ::Augeas.create { |aug| aug.get('/augeas/version') } if ::Augeas.singleton_method(:create)
 
           # it is used for legacy augeas <= 0.5.0
-          return ::Augeas.open { |aug| aug.get('/augeas/version') } if ::Augeas.respond_to?(:open)
+          ::Augeas.open { |aug| aug.get('/augeas/version') }
         rescue StandardError => e
-          log.debug('ruby-augeas not available')
+          log.debug('coudl not read version from ruby-augeas')
           log.log_exception(e)
           nil
         end

spec/facter/resolvers/augeas_resolver_spec.rb

@@ -7,6 +7,7 @@
 
   before do
     augeas.instance_variable_set(:@log, log_spy)
+    allow(Facter::Resolvers::Augeas).to receive(:require).with('augeas')
   end
 
   after do
@@ -33,11 +34,7 @@
     end
 
     context 'when augeas gem > 0.5.0 is installed' do
-      let(:augeas_mock) { instance_spy(Augeas) }
-
       before do
-        allow(Augeas).to receive(:respond_to?).with(:create).and_return(true)
-        allow(Augeas).to receive(:respond_to?).with(:create, true).and_return(true)
         allow(Augeas).to receive(:create).and_return('1.12.0')
       end
 
@@ -47,12 +44,8 @@
     end
 
     context 'when augeas gem <= 0.5.0 is installed' do
-      let(:augeas_mock) { instance_spy(Augeas) }
-
       before do
-        allow(Augeas).to receive(:respond_to?).with(:create).and_return(false)
-        allow(Augeas).to receive(:respond_to?).with(:open).and_return(true)
-        allow(Augeas).to receive(:respond_to?).with(:open, true).and_return(true)
+        allow(Augeas).to receive(:singleton_method).with(:create).and_return(false)
         allow(Augeas).to receive(:open).and_return('1.12.0')
       end
 
@@ -75,7 +68,7 @@
       it 'logs a debug message' do
         augeas.resolve(:augeas_version)
 
-        expect(log_spy).to have_received(:debug).with('ruby-augeas not available')
+        expect(log_spy).to have_received(:debug).with('coudl not read version from ruby-augeas')
       end
 
       it 'logs an exception' do