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-rw-r--r--activemodel/test/state_machine/state_transition_test.rb88
1 files changed, 88 insertions, 0 deletions
diff --git a/activemodel/test/state_machine/state_transition_test.rb b/activemodel/test/state_machine/state_transition_test.rb
new file mode 100644
index 0000000000..9a9e7f60c5
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+++ b/activemodel/test/state_machine/state_transition_test.rb
@@ -0,0 +1,88 @@
+require File.expand_path(File.join(File.dirname(__FILE__), '..', 'test_helper'))
+
+class StateTransitionTest < ActiveModel::TestCase
+ test 'should set from, to, and opts attr readers' do
+ opts = {:from => 'foo', :to => 'bar', :guard => 'g'}
+ st = ActiveModel::StateMachine::StateTransition.new(opts)
+
+ assert_equal opts[:from], st.from
+ assert_equal opts[:to], st.to
+ assert_equal opts, st.options
+ end
+
+ uses_mocha 'checking ActiveModel StateMachine transitions' do
+ test 'should pass equality check if from and to are the same' do
+ opts = {:from => 'foo', :to => 'bar', :guard => 'g'}
+ st = ActiveModel::StateMachine::StateTransition.new(opts)
+
+ obj = stub
+ obj.stubs(:from).returns(opts[:from])
+ obj.stubs(:to).returns(opts[:to])
+
+ assert_equal st, obj
+ end
+
+ test 'should fail equality check if from are not the same' do
+ opts = {:from => 'foo', :to => 'bar', :guard => 'g'}
+ st = ActiveModel::StateMachine::StateTransition.new(opts)
+
+ obj = stub
+ obj.stubs(:from).returns('blah')
+ obj.stubs(:to).returns(opts[:to])
+
+ assert_not_equal st, obj
+ end
+
+ test 'should fail equality check if to are not the same' do
+ opts = {:from => 'foo', :to => 'bar', :guard => 'g'}
+ st = ActiveModel::StateMachine::StateTransition.new(opts)
+
+ obj = stub
+ obj.stubs(:from).returns(opts[:from])
+ obj.stubs(:to).returns('blah')
+
+ assert_not_equal st, obj
+ end
+ end
+end
+
+class StateTransitionGuardCheckTest < ActiveModel::TestCase
+ test 'should return true of there is no guard' do
+ opts = {:from => 'foo', :to => 'bar'}
+ st = ActiveModel::StateMachine::StateTransition.new(opts)
+
+ assert st.perform(nil)
+ end
+
+ uses_mocha 'checking ActiveModel StateMachine transition guard checks' do
+ test 'should call the method on the object if guard is a symbol' do
+ opts = {:from => 'foo', :to => 'bar', :guard => :test_guard}
+ st = ActiveModel::StateMachine::StateTransition.new(opts)
+
+ obj = stub
+ obj.expects(:test_guard)
+
+ st.perform(obj)
+ end
+
+ test 'should call the method on the object if guard is a string' do
+ opts = {:from => 'foo', :to => 'bar', :guard => 'test_guard'}
+ st = ActiveModel::StateMachine::StateTransition.new(opts)
+
+ obj = stub
+ obj.expects(:test_guard)
+
+ st.perform(obj)
+ end
+
+ test 'should call the proc passing the object if the guard is a proc' do
+ opts = {:from => 'foo', :to => 'bar', :guard => Proc.new {|o| o.test_guard}}
+ st = ActiveModel::StateMachine::StateTransition.new(opts)
+
+ obj = stub
+ obj.expects(:test_guard)
+
+ st.perform(obj)
+ end
+ end
+end