diff options
Diffstat (limited to 'bootstraptest/test_constant_cache.rb')
-rw-r--r-- | bootstraptest/test_constant_cache.rb | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/bootstraptest/test_constant_cache.rb b/bootstraptest/test_constant_cache.rb new file mode 100644 index 0000000000..1fa83256ed --- /dev/null +++ b/bootstraptest/test_constant_cache.rb @@ -0,0 +1,187 @@ +# Constant lookup is cached. +assert_equal '1', %q{ + CONST = 1 + + def const + CONST + end + + const + const +} + +# Invalidate when a constant is set. +assert_equal '2', %q{ + CONST = 1 + + def const + CONST + end + + const + + CONST = 2 + + const +} + +# Invalidate when a constant of the same name is set. +assert_equal '1', %q{ + CONST = 1 + + def const + CONST + end + + const + + class Container + CONST = 2 + end + + const +} + +# Invalidate when a constant is removed. +assert_equal 'missing', %q{ + class Container + CONST = 1 + + def const + CONST + end + + def self.const_missing(name) + 'missing' + end + + new.const + remove_const :CONST + end + + Container.new.const +} + +# Invalidate when a constant's visibility changes. +assert_equal 'missing', %q{ + class Container + CONST = 1 + + def self.const_missing(name) + 'missing' + end + end + + def const + Container::CONST + end + + const + + Container.private_constant :CONST + + const +} + +# Invalidate when a constant's visibility changes even if the call to the +# visibility change method fails. +assert_equal 'missing', %q{ + class Container + CONST1 = 1 + + def self.const_missing(name) + 'missing' + end + end + + def const1 + Container::CONST1 + end + + const1 + + begin + Container.private_constant :CONST1, :CONST2 + rescue NameError + end + + const1 +} + +# Invalidate when a module is included. +assert_equal 'INCLUDE', %q{ + module Include + CONST = :INCLUDE + end + + class Parent + CONST = :PARENT + end + + class Child < Parent + def const + CONST + end + + new.const + + include Include + end + + Child.new.const +} + +# Invalidate when const_missing is hit. +assert_equal '2', %q{ + module Container + Foo = 1 + Bar = 2 + + class << self + attr_accessor :count + + def const_missing(name) + @count += 1 + @count == 1 ? Foo : Bar + end + end + + @count = 0 + end + + def const + Container::Baz + end + + const + const +} + +# Invalidate when the iseq gets cleaned up. +assert_equal '2', %q{ + CONSTANT = 1 + + iseq = RubyVM::InstructionSequence.compile(<<~RUBY) + CONSTANT + RUBY + + iseq.eval + iseq = nil + + GC.start + CONSTANT = 2 +} + +# Invalidate when the iseq gets cleaned up even if it was never in the cache. +assert_equal '2', %q{ + CONSTANT = 1 + + iseq = RubyVM::InstructionSequence.compile(<<~RUBY) + CONSTANT + RUBY + + iseq = nil + + GC.start + CONSTANT = 2 +} |