diff options
Diffstat (limited to 'spec/ruby/core/binding/local_variable_set_spec.rb')
-rw-r--r-- | spec/ruby/core/binding/local_variable_set_spec.rb | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/spec/ruby/core/binding/local_variable_set_spec.rb b/spec/ruby/core/binding/local_variable_set_spec.rb new file mode 100644 index 0000000000..067dcbd03e --- /dev/null +++ b/spec/ruby/core/binding/local_variable_set_spec.rb @@ -0,0 +1,71 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "Binding#local_variable_set" do + it "adds nonexistent variables to the binding's eval scope" do + obj = BindingSpecs::Demo.new(1) + bind = obj.get_empty_binding + bind.eval('local_variables').should == [] + bind.local_variable_set :foo, 1 + bind.eval('local_variables').should == [:foo] + bind.eval('foo').should == 1 + end + + it 'sets a new local variable' do + bind = binding + + bind.local_variable_set(:number, 10) + bind.local_variable_get(:number).should == 10 + end + + it 'sets a local variable using a String as the variable name' do + bind = binding + + bind.local_variable_set('number', 10) + bind.local_variable_get('number').should == 10 + end + + it 'sets a local variable using an object responding to #to_str as the variable name' do + bind = binding + name = mock(:obj) + name.stub!(:to_str).and_return('number') + + bind.local_variable_set(name, 10) + bind.local_variable_get(name).should == 10 + end + + it 'scopes new local variables to the receiving Binding' do + bind = binding + bind.local_variable_set(:number, 10) + + lambda { number }.should raise_error(NameError) + end + + it 'overwrites an existing local variable defined before a Binding' do + number = 10 + bind = binding + + bind.local_variable_set(:number, 20) + number.should == 20 + end + + it 'overwrites a local variable defined using eval()' do + bind = binding + bind.eval('number = 10') + + bind.local_variable_set(:number, 20) + bind.local_variable_get(:number).should == 20 + end + + it "raises a NameError on global access" do + bind = binding + lambda { bind.local_variable_set(:$0, "") }.should raise_error(NameError) + end + + it "raises a NameError on special variable access" do + bind = binding + lambda { bind.local_variable_set(:$~, "") }.should raise_error(NameError) + lambda { bind.local_variable_set(:$_, "") }.should raise_error(NameError) + end + +end |