diff options
| author | eileencodes <[email protected]> | 2021-02-25 12:42:10 -0500 |
|---|---|---|
| committer | Aaron Patterson <[email protected]> | 2021-03-10 09:40:00 -0800 |
| commit | cbc7c1c06145b02b3d887a6fb2c3b6d9e4bb22dd (patch) | |
| tree | fe52214dc1a94cb40ced2a00371e5eb0909b14b9 | |
| parent | 23a48d8fe683df289736e2d90c86006eb919b40d (diff) | |
Add cvar overtaken tests
While working on another project we noticed that there were no tests for
the cvar overtaken exception when using classes. This change adds a test
for cvar overtaken with classes and moves the cvar overtaken test for
modules into the new file.
Co-authored-by: Aaron Patterson <[email protected]>
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/4251
| -rw-r--r-- | test/ruby/test_variable.rb | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/test/ruby/test_variable.rb b/test/ruby/test_variable.rb index 9795223fda..bedddf0af7 100644 --- a/test/ruby/test_variable.rb +++ b/test/ruby/test_variable.rb @@ -71,6 +71,61 @@ class TestVariable < Test::Unit::TestCase assert_equal(1, o.singleton_class.class_variable_get(:@@foo)) end + def test_cvar_overtaken_by_parent_class + error = eval <<~EORB + class Parent + end + + class Child < Parent + @@cvar = 1 + + def self.cvar + @@cvar + end + end + + assert_equal 1, Child.cvar + + class Parent + @@cvar = 2 + end + + assert_raise RuntimeError do + Child.cvar + end + EORB + + assert_equal "class variable @@cvar of TestVariable::Child is overtaken by TestVariable::Parent", error.message + end + + def test_cvar_overtaken_by_module + error = eval <<~EORB + class ParentForModule + @@cvar = 1 + + def self.cvar + @@cvar + end + end + + assert_equal 1, ParentForModule.cvar + + module Mixin + @@cvar = 2 + end + + class ParentForModule + include Mixin + end + + assert_raise RuntimeError do + ParentForModule.cvar + end + EORB + + assert_equal "class variable @@cvar of TestVariable::ParentForModule is overtaken by TestVariable::Mixin", error.message + end + class IncludeRefinedModuleClassVariableNoWarning module Mod @@_test_include_refined_module_class_variable = true |