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-rw-r--r--spec/ruby/core/basicobject/instance_eval_spec.rb192
1 files changed, 172 insertions, 20 deletions
diff --git a/spec/ruby/core/basicobject/instance_eval_spec.rb b/spec/ruby/core/basicobject/instance_eval_spec.rb
index b6a146095d..1f3a43f341 100644
--- a/spec/ruby/core/basicobject/instance_eval_spec.rb
+++ b/spec/ruby/core/basicobject/instance_eval_spec.rb
@@ -20,12 +20,18 @@ describe "BasicObject#instance_eval" do
a.instance_eval('self').equal?(a).should be_true
end
- it "expects a block with no arguments" do
- -> { "hola".instance_eval }.should raise_error(ArgumentError)
+ it "raises an ArgumentError when no arguments and no block are given" do
+ -> { "hola".instance_eval }.should raise_error(ArgumentError, "wrong number of arguments (given 0, expected 1..3)")
end
- it "takes no arguments with a block" do
- -> { "hola".instance_eval(4, 5) {|a,b| a + b } }.should raise_error(ArgumentError)
+ it "raises an ArgumentError when a block and normal arguments are given" do
+ -> { "hola".instance_eval(4, 5) {|a,b| a + b } }.should raise_error(ArgumentError, "wrong number of arguments (given 2, expected 0)")
+ end
+
+ it "raises an ArgumentError when more than 3 arguments are given" do
+ -> {
+ "hola".instance_eval("1 + 1", "some file", 0, "bogus")
+ }.should raise_error(ArgumentError, "wrong number of arguments (given 4, expected 1..3)")
end
it "yields the object to the block" do
@@ -78,11 +84,30 @@ describe "BasicObject#instance_eval" do
end
+ ruby_version_is "3.3" do
+ it "uses the caller location as default location" do
+ f = Object.new
+ f.instance_eval("[__FILE__, __LINE__]").should == ["(eval at #{__FILE__}:#{__LINE__})", 1]
+ end
+ end
+
it "has access to receiver's instance variables" do
BasicObjectSpecs::IVars.new.instance_eval { @secret }.should == 99
BasicObjectSpecs::IVars.new.instance_eval("@secret").should == 99
end
+ it "raises TypeError for frozen objects when tries to set receiver's instance variables" do
+ -> { nil.instance_eval { @foo = 42 } }.should raise_error(FrozenError, "can't modify frozen NilClass: nil")
+ -> { true.instance_eval { @foo = 42 } }.should raise_error(FrozenError, "can't modify frozen TrueClass: true")
+ -> { false.instance_eval { @foo = 42 } }.should raise_error(FrozenError, "can't modify frozen FalseClass: false")
+ -> { 1.instance_eval { @foo = 42 } }.should raise_error(FrozenError, "can't modify frozen Integer: 1")
+ -> { :symbol.instance_eval { @foo = 42 } }.should raise_error(FrozenError, "can't modify frozen Symbol: :symbol")
+
+ obj = Object.new
+ obj.freeze
+ -> { obj.instance_eval { @foo = 42 } }.should raise_error(FrozenError)
+ end
+
it "treats block-local variables as local to the block" do
prc = instance_eval <<-CODE
proc do |x, prc|
@@ -99,11 +124,6 @@ describe "BasicObject#instance_eval" do
prc.call(false, prc).should == 1
end
- it "sets class variables in the receiver" do
- BasicObjectSpecs::InstEvalCVar.class_variables.should include(:@@count)
- BasicObjectSpecs::InstEvalCVar.send(:class_variable_get, :@@count).should == 2
- end
-
it "makes the receiver metaclass the scoped class when used with a string" do
obj = Object.new
obj.instance_eval %{
@@ -113,8 +133,52 @@ describe "BasicObject#instance_eval" do
obj.singleton_class.const_get(:B).should be_an_instance_of(Class)
end
- it "gets constants in the receiver if a string given" do
- BasicObjectSpecs::InstEvalOuter::Inner::X_BY_STR.should == 2
+ describe "constants lookup when a String given" do
+ it "looks in the receiver singleton class first" do
+ receiver = BasicObjectSpecs::InstEval::Constants::ConstantInReceiverSingletonClass::ReceiverScope::Receiver.new
+ caller = BasicObjectSpecs::InstEval::Constants::ConstantInReceiverSingletonClass::CallerScope::Caller.new
+
+ caller.get_constant_with_string(receiver).should == :singleton_class
+ end
+
+ ruby_version_is ""..."3.1" do
+ it "looks in the caller scope next" do
+ receiver = BasicObjectSpecs::InstEval::Constants::ConstantInReceiverClass::ReceiverScope::Receiver.new
+ caller = BasicObjectSpecs::InstEval::Constants::ConstantInReceiverClass::CallerScope::Caller.new
+
+ caller.get_constant_with_string(receiver).should == :Caller
+ end
+ end
+
+ ruby_version_is "3.1" do
+ it "looks in the receiver class next" do
+ receiver = BasicObjectSpecs::InstEval::Constants::ConstantInReceiverClass::ReceiverScope::Receiver.new
+ caller = BasicObjectSpecs::InstEval::Constants::ConstantInReceiverClass::CallerScope::Caller.new
+
+ caller.get_constant_with_string(receiver).should == :Receiver
+ end
+ end
+
+ it "looks in the caller class next" do
+ receiver = BasicObjectSpecs::InstEval::Constants::ConstantInCallerClass::ReceiverScope::Receiver.new
+ caller = BasicObjectSpecs::InstEval::Constants::ConstantInCallerClass::CallerScope::Caller.new
+
+ caller.get_constant_with_string(receiver).should == :Caller
+ end
+
+ it "looks in the caller outer scopes next" do
+ receiver = BasicObjectSpecs::InstEval::Constants::ConstantInCallerOuterScopes::ReceiverScope::Receiver.new
+ caller = BasicObjectSpecs::InstEval::Constants::ConstantInCallerOuterScopes::CallerScope::Caller.new
+
+ caller.get_constant_with_string(receiver).should == :CallerScope
+ end
+
+ it "looks in the receiver class hierarchy next" do
+ receiver = BasicObjectSpecs::InstEval::Constants::ConstantInReceiverParentClass::ReceiverScope::Receiver.new
+ caller = BasicObjectSpecs::InstEval::Constants::ConstantInReceiverParentClass::CallerScope::Caller.new
+
+ caller.get_constant_with_string(receiver).should == :ReceiverParent
+ end
end
it "doesn't get constants in the receiver if a block given" do
@@ -130,17 +194,51 @@ describe "BasicObject#instance_eval" do
end.should raise_error(TypeError)
end
-quarantine! do # Not clean, leaves cvars lying around to break other specs
- it "scopes class var accesses in the caller when called on an Integer" do
- # Integer can take instance vars
- Integer.class_eval "@@__tmp_instance_eval_spec = 1"
- (defined? @@__tmp_instance_eval_spec).should be_nil
+ describe "class variables lookup" do
+ it "gets class variables in the caller class when called with a String" do
+ receiver = BasicObjectSpecs::InstEval::CVar::Get::ReceiverScope.new
+ caller = BasicObjectSpecs::InstEval::CVar::Get::CallerScope.new
- @@__tmp_instance_eval_spec = 2
- 1.instance_eval { @@__tmp_instance_eval_spec }.should == 2
- Integer.__send__(:remove_class_variable, :@@__tmp_instance_eval_spec)
+ caller.get_class_variable_with_string(receiver).should == :value_defined_in_caller_scope
+ end
+
+ it "gets class variables in the block definition scope when called with a block" do
+ receiver = BasicObjectSpecs::InstEval::CVar::Get::ReceiverScope.new
+ caller = BasicObjectSpecs::InstEval::CVar::Get::CallerScope.new
+ block = BasicObjectSpecs::InstEval::CVar::Get::BlockDefinitionScope.new.block
+
+ caller.get_class_variable_with_block(receiver, block).should == :value_defined_in_block_definition_scope
+ end
+
+ it "sets class variables in the caller class when called with a String" do
+ receiver = BasicObjectSpecs::InstEval::CVar::Set::ReceiverScope.new
+ caller = BasicObjectSpecs::InstEval::CVar::Set::CallerScope.new
+
+ caller.set_class_variable_with_string(receiver, 1)
+ BasicObjectSpecs::InstEval::CVar::Set::CallerScope.get_class_variable.should == 1
+ end
+
+ it "sets class variables in the block definition scope when called with a block" do
+ receiver = BasicObjectSpecs::InstEval::CVar::Set::ReceiverScope.new
+ caller = BasicObjectSpecs::InstEval::CVar::Set::CallerScope.new
+ block = BasicObjectSpecs::InstEval::CVar::Set::BlockDefinitionScope.new.block_to_assign(1)
+
+ caller.set_class_variable_with_block(receiver, block)
+ BasicObjectSpecs::InstEval::CVar::Set::BlockDefinitionScope.get_class_variable.should == 1
+ end
+
+ it "does not have access to class variables in the receiver class when called with a String" do
+ receiver = BasicObjectSpecs::InstEval::CVar::Get::ReceiverScope.new
+ caller = BasicObjectSpecs::InstEval::CVar::Get::CallerWithoutCVarScope.new
+ -> { caller.get_class_variable_with_string(receiver) }.should raise_error(NameError, /uninitialized class variable @@cvar/)
+ end
+
+ it "does not have access to class variables in the receiver's singleton class when called with a String" do
+ receiver = BasicObjectSpecs::InstEval::CVar::Get::ReceiverWithCVarDefinedInSingletonClass
+ caller = BasicObjectSpecs::InstEval::CVar::Get::CallerWithoutCVarScope.new
+ -> { caller.get_class_variable_with_string(receiver) }.should raise_error(NameError, /uninitialized class variable @@cvar/)
+ end
end
-end
it "raises a TypeError when defining methods on numerics" do
-> do
@@ -185,4 +283,58 @@ end
x.should == :value
end
+
+ it "converts string argument with #to_str method" do
+ source_code = Object.new
+ def source_code.to_str() "1" end
+
+ a = BasicObject.new
+ a.instance_eval(source_code).should == 1
+ end
+
+ it "raises ArgumentError if returned value is not String" do
+ source_code = Object.new
+ def source_code.to_str() :symbol end
+
+ a = BasicObject.new
+ -> { a.instance_eval(source_code) }.should raise_error(TypeError, /can't convert Object to String/)
+ end
+
+ it "converts filename argument with #to_str method" do
+ filename = Object.new
+ def filename.to_str() "file.rb" end
+
+ err = begin
+ Object.new.instance_eval("raise", filename)
+ rescue => e
+ e
+ end
+ err.backtrace.first.split(":")[0].should == "file.rb"
+ end
+
+ it "raises ArgumentError if returned value is not String" do
+ filename = Object.new
+ def filename.to_str() :symbol end
+
+ -> { Object.new.instance_eval("raise", filename) }.should raise_error(TypeError, /can't convert Object to String/)
+ end
+
+ it "converts lineno argument with #to_int method" do
+ lineno = Object.new
+ def lineno.to_int() 15 end
+
+ err = begin
+ Object.new.instance_eval("raise", "file.rb", lineno)
+ rescue => e
+ e
+ end
+ err.backtrace.first.split(":")[1].should == "15"
+ end
+
+ it "raises ArgumentError if returned value is not Integer" do
+ lineno = Object.new
+ def lineno.to_int() :symbol end
+
+ -> { Object.new.instance_eval("raise", "file.rb", lineno) }.should raise_error(TypeError, /can't convert Object to Integer/)
+ end
end
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 13:31:47 +0000