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| author | Benoit Daloze <[email protected]> | 2021-10-28 18:54:01 +0200 |
|---|---|---|
| committer | Benoit Daloze <[email protected]> | 2021-10-28 18:54:01 +0200 |
| commit | c75df796d875b02d7b97974c7fe840f0a9de171f (patch) | |
| tree | ea9a4e1b98cdd1be834fe608e24ba20399184e5a /spec/ruby/language/class_variable_spec.rb | |
| parent | 3bf36979d888cfa958c22fbf094ad10dabfe624d (diff) | |
Update to ruby/spec@21a48d9
Diffstat (limited to 'spec/ruby/language/class_variable_spec.rb')
| -rw-r--r-- | spec/ruby/language/class_variable_spec.rb | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/spec/ruby/language/class_variable_spec.rb b/spec/ruby/language/class_variable_spec.rb index dffab47a6b..9a4b36e82b 100644 --- a/spec/ruby/language/class_variable_spec.rb +++ b/spec/ruby/language/class_variable_spec.rb @@ -82,3 +82,29 @@ describe 'A class variable definition' do c.class_variable_get(:@@cv).should == :next end end + +ruby_version_is "3.0" do + describe 'Accessing a class variable' do + it "raises a RuntimeError when accessed from the toplevel scope (not in some module or class)" do + -> { + eval "@@cvar_toplevel1" + }.should raise_error(RuntimeError, 'class variable access from toplevel') + -> { + eval "@@cvar_toplevel2 = 2" + }.should raise_error(RuntimeError, 'class variable access from toplevel') + end + + it "raises a RuntimeError when a class variable is overtaken in an ancestor class" do + parent = Class.new() + subclass = Class.new(parent) + subclass.class_variable_set(:@@cvar_overtaken, :subclass) + parent.class_variable_set(:@@cvar_overtaken, :parent) + + -> { + subclass.class_variable_get(:@@cvar_overtaken) + }.should raise_error(RuntimeError, /class variable @@cvar_overtaken of .+ is overtaken by .+/) + + parent.class_variable_get(:@@cvar_overtaken).should == :parent + end + end +end |