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Diffstat (limited to 'spec/ruby/core/module/const_added_spec.rb')
-rw-r--r-- | spec/ruby/core/module/const_added_spec.rb | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/spec/ruby/core/module/const_added_spec.rb b/spec/ruby/core/module/const_added_spec.rb new file mode 100644 index 0000000000..f9edda3a07 --- /dev/null +++ b/spec/ruby/core/module/const_added_spec.rb @@ -0,0 +1,160 @@ +require_relative '../../spec_helper' +require_relative 'fixtures/classes' + +describe "Module#const_added" do + ruby_version_is "3.2" do + it "is a private instance method" do + Module.should have_private_instance_method(:const_added) + end + + it "returns nil in the default implementation" do + Module.new do + const_added(:TEST).should == nil + end + end + + it "is called when a new constant is assigned on self" do + ScratchPad.record [] + + mod = Module.new do + def self.const_added(name) + ScratchPad << name + end + end + + mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1) + TEST = 1 + RUBY + + ScratchPad.recorded.should == [:TEST] + end + + it "is called when a new constant is assigned on self through const_set" do + ScratchPad.record [] + + mod = Module.new do + def self.const_added(name) + ScratchPad << name + end + end + + mod.const_set(:TEST, 1) + + ScratchPad.recorded.should == [:TEST] + end + + it "is called when a new module is defined under self" do + ScratchPad.record [] + + mod = Module.new do + def self.const_added(name) + ScratchPad << name + end + end + + mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1) + module SubModule + end + + module SubModule + end + RUBY + + ScratchPad.recorded.should == [:SubModule] + end + + it "is called when a new class is defined under self" do + ScratchPad.record [] + + mod = Module.new do + def self.const_added(name) + ScratchPad << name + end + end + + mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1) + class SubClass + end + + class SubClass + end + RUBY + + ScratchPad.recorded.should == [:SubClass] + end + + it "is called when an autoload is defined" do + ScratchPad.record [] + + mod = Module.new do + def self.const_added(name) + ScratchPad << name + end + end + + mod.autoload :Autoload, "foo" + ScratchPad.recorded.should == [:Autoload] + end + + it "is called with a precise caller location with the line of definition" do + ScratchPad.record [] + + mod = Module.new do + def self.const_added(name) + location = caller_locations(1, 1)[0] + ScratchPad << location.lineno + end + end + + line = __LINE__ + mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1) + TEST = 1 + + module SubModule + end + + class SubClass + end + RUBY + + mod.const_set(:CONST_SET, 1) + + ScratchPad.recorded.should == [line + 2, line + 4, line + 7, line + 11] + end + + it "is called when the constant is already assigned a value" do + ScratchPad.record [] + + mod = Module.new do + def self.const_added(name) + ScratchPad.record const_get(name) + end + end + + mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1) + TEST = 123 + RUBY + + ScratchPad.recorded.should == 123 + end + + it "records re-definition of existing constants" do + ScratchPad.record [] + + mod = Module.new do + def self.const_added(name) + ScratchPad << const_get(name) + end + end + + -> { + mod.module_eval(<<-RUBY, __FILE__, __LINE__ + 1) + TEST = 123 + TEST = 456 + RUBY + }.should complain(/warning: already initialized constant .+::TEST/) + + ScratchPad.recorded.should == [123, 456] + end + end +end |