diff options
Diffstat (limited to 'spec/rubyspec/core/kernel/instance_variables_spec.rb')
-rw-r--r-- | spec/rubyspec/core/kernel/instance_variables_spec.rb | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/spec/rubyspec/core/kernel/instance_variables_spec.rb b/spec/rubyspec/core/kernel/instance_variables_spec.rb new file mode 100644 index 0000000000..f744ee3c7a --- /dev/null +++ b/spec/rubyspec/core/kernel/instance_variables_spec.rb @@ -0,0 +1,27 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "Kernel#instance_variables" do + describe "immediate values" do + it "returns an empty array if no instance variables are defined" do + 0.instance_variables.should == [] + end + + it "returns the correct array if an instance variable is added" do + a = 0 + lambda{ a.instance_variable_set("@test", 1) }.should raise_error(RuntimeError) + end + end + + describe "regular objects" do + it "returns an empty array if no instance variables are defined" do + Object.new.instance_variables.should == [] + end + + it "returns the correct array if an instance variable is added" do + a = Object.new + a.instance_variable_set("@test", 1) + a.instance_variables.should == [:@test] + end + end +end |