diff options
Diffstat (limited to 'spec/rubyspec/core/binding/local_variable_defined_spec.rb')
-rw-r--r-- | spec/rubyspec/core/binding/local_variable_defined_spec.rb | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/spec/rubyspec/core/binding/local_variable_defined_spec.rb b/spec/rubyspec/core/binding/local_variable_defined_spec.rb new file mode 100644 index 0000000000..5fa79b19e2 --- /dev/null +++ b/spec/rubyspec/core/binding/local_variable_defined_spec.rb @@ -0,0 +1,46 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe 'Binding#local_variable_defined?' do + it 'returns false when a variable is not defined' do + binding.local_variable_defined?(:foo).should == false + end + + it 'returns true when a regular local variable is defined' do + foo = 10 + binding.local_variable_defined?(:foo).should == true + end + + it 'returns true when a local variable is defined using eval()' do + bind = binding + bind.eval('foo = 10') + + bind.local_variable_defined?(:foo).should == true + end + + it 'returns true when a local variable is defined using Binding#local_variable_set' do + bind = binding + bind.local_variable_set(:foo, 10) + + bind.local_variable_defined?(:foo).should == true + end + + it 'returns true when a local variable is defined in a parent scope' do + foo = 10 + lambda { + binding.local_variable_defined?(:foo) + }.call.should == true + end + + it 'allows usage of a String as the variable name' do + foo = 10 + binding.local_variable_defined?('foo').should == true + end + + it 'allows usage of an object responding to #to_str as the variable name' do + foo = 10 + name = mock(:obj) + name.stub!(:to_str).and_return('foo') + + binding.local_variable_defined?(name).should == true + end +end |