mirror of
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8c5b60eb22
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60525 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
532 lines
15 KiB
Ruby
532 lines
15 KiB
Ruby
require File.expand_path('../spec_helper', __FILE__)
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load_extension("kernel")
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describe "C-API Kernel function" do
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before :each do
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@s = CApiKernelSpecs.new
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end
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describe "rb_block_given_p" do
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it "returns false if no block is passed" do
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@s.rb_block_given_p.should == false
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end
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it "returns true if a block is passed" do
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(@s.rb_block_given_p { puts "FOO" } ).should == true
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end
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end
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describe "rb_need_block" do
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it "raises a LocalJumpError if no block is given" do
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lambda { @s.rb_need_block }.should raise_error(LocalJumpError)
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end
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it "does not raise a LocalJumpError if a block is given" do
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@s.rb_need_block { }.should == nil
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end
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end
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describe "rb_block_call" do
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before :each do
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ScratchPad.record []
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end
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it "calls the block with a single argument" do
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ary = [1, 3, 5]
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@s.rb_block_call(ary).should == [2, 4, 6]
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end
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it "calls the block with multiple arguments in argc / argv" do
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ary = [1, 3, 5]
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@s.rb_block_call_multi_arg(ary).should == 9
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end
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it "calls the method with no function callback and no block" do
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ary = [1, 3, 5]
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@s.rb_block_call_no_func(ary).should be_kind_of(Enumerator)
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end
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it "calls the method with no function callback and a block" do
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ary = [1, 3, 5]
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@s.rb_block_call_no_func(ary) do |i|
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i + 1
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end.should == [2, 4, 6]
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end
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end
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describe "rb_raise" do
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it "raises an exception" do
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lambda { @s.rb_raise({}) }.should raise_error(TypeError)
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end
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it "terminates the function at the point it was called" do
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h = {}
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lambda { @s.rb_raise(h) }.should raise_error(TypeError)
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h[:stage].should == :before
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end
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end
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describe "rb_throw" do
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before :each do
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ScratchPad.record []
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end
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it "sets the return value of the catch block to the specified value" do
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catch(:foo) do
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@s.rb_throw(:return_value)
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end.should == :return_value
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end
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it "terminates the function at the point it was called" do
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catch(:foo) do
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ScratchPad << :before_throw
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@s.rb_throw(:thrown_value)
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ScratchPad << :after_throw
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end.should == :thrown_value
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ScratchPad.recorded.should == [:before_throw]
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end
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it "raises an ArgumentError if there is no catch block for the symbol" do
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lambda { @s.rb_throw(nil) }.should raise_error(ArgumentError)
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end
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end
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describe "rb_throw_obj" do
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before :each do
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ScratchPad.record []
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@tag = Object.new
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end
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it "sets the return value of the catch block to the specified value" do
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catch(@tag) do
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@s.rb_throw_obj(@tag, :thrown_value)
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end.should == :thrown_value
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end
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it "terminates the function at the point it was called" do
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catch(@tag) do
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ScratchPad << :before_throw
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@s.rb_throw_obj(@tag, :thrown_value)
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ScratchPad << :after_throw
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end.should == :thrown_value
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ScratchPad.recorded.should == [:before_throw]
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end
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it "raises an ArgumentError if there is no catch block for the symbol" do
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lambda { @s.rb_throw(nil) }.should raise_error(ArgumentError)
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end
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end
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describe "rb_warn" do
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before :each do
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@stderr, $stderr = $stderr, IOStub.new
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@verbose = $VERBOSE
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end
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after :each do
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$stderr = @stderr
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$VERBOSE = @verbose
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end
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it "prints a message to $stderr if $VERBOSE evaluates to true" do
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$VERBOSE = true
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@s.rb_warn("This is a warning")
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$stderr.should =~ /This is a warning/
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end
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it "prints a message to $stderr if $VERBOSE evaluates to false" do
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$VERBOSE = false
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@s.rb_warn("This is a warning")
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$stderr.should =~ /This is a warning/
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end
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end
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describe "rb_sys_fail" do
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it "raises an exception from the value of errno" do
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lambda do
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@s.rb_sys_fail("additional info")
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end.should raise_error(SystemCallError, /additional info/)
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end
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it "can take a NULL message" do
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lambda do
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@s.rb_sys_fail(nil)
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end.should raise_error(Errno::EPERM)
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end
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end
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describe "rb_syserr_fail" do
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it "raises an exception from the given error" do
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lambda do
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@s.rb_syserr_fail(Errno::EINVAL::Errno, "additional info")
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end.should raise_error(Errno::EINVAL, /additional info/)
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end
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it "can take a NULL message" do
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lambda do
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@s.rb_syserr_fail(Errno::EINVAL::Errno, nil)
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end.should raise_error(Errno::EINVAL)
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end
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end
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describe "rb_yield" do
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it "yields passed argument" do
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ret = nil
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@s.rb_yield(1) { |z| ret = z }
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ret.should == 1
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end
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it "returns the result from block evaluation" do
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@s.rb_yield(1) { |z| z * 1000 }.should == 1000
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end
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it "raises LocalJumpError when no block is given" do
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lambda { @s.rb_yield(1) }.should raise_error(LocalJumpError)
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end
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it "rb_yield to a block that breaks does not raise an error" do
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@s.rb_yield(1) { break }.should == nil
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end
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it "rb_yield to a block that breaks with a value returns the value" do
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@s.rb_yield(1) { break 73 }.should == 73
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end
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platform_is_not :"solaris2.10" do # NOTE: i386-pc-solaris2.10
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it "rb_yield through a callback to a block that breaks with a value returns the value" do
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@s.rb_yield_indirected(1) { break 73 }.should == 73
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end
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end
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it "rb_yield to block passed to enumerator" do
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enum_class = Class.new do
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include Enumerable
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end
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@s.rb_yield_define_each(enum_class)
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res = enum_class.new.collect { |i| i * 2}
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res.should == [0, 2, 4, 6]
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end
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end
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describe "rb_yield_values" do
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it "yields passed arguments" do
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ret = nil
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@s.rb_yield_values(1, 2) { |x, y| ret = x + y }
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ret.should == 3
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end
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it "returns the result from block evaluation" do
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@s.rb_yield_values(1, 2) { |x, y| x + y }.should == 3
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end
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it "raises LocalJumpError when no block is given" do
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lambda { @s.rb_yield_splat([1, 2]) }.should raise_error(LocalJumpError)
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end
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end
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describe "rb_yield_splat" do
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it "yields with passed array's contents" do
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ret = nil
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@s.rb_yield_splat([1, 2]) { |x, y| ret = x + y }
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ret.should == 3
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end
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it "returns the result from block evaluation" do
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@s.rb_yield_splat([1, 2]) { |x, y| x + y }.should == 3
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end
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it "raises LocalJumpError when no block is given" do
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lambda { @s.rb_yield_splat([1, 2]) }.should raise_error(LocalJumpError)
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end
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end
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describe "rb_protect" do
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it "will run a function with an argument" do
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proof = [] # Hold proof of work performed after the yield.
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res = @s.rb_protect_yield(7, proof) { |x| x + 1 }
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res.should == 8
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proof[0].should == 23
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end
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it "will allow cleanup code to run after break" do
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proof = [] # Hold proof of work performed after the yield.
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@s.rb_protect_yield(7, proof) { |x| break }
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proof[0].should == 23
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end
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it "will allow cleanup code to run after break with value" do
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proof = [] # Hold proof of work performed after the yield.
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res = @s.rb_protect_yield(7, proof) { |x| break x + 1 }
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res.should == 8
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proof[0].should == 23
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end
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it "will allow cleanup code to run after a raise" do
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proof = [] # Hold proof of work performed after the yield.
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lambda do
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@s.rb_protect_yield(7, proof) { |x| raise NameError}
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end.should raise_error(NameError)
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proof[0].should == 23
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end
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end
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describe "rb_rescue" do
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before :each do
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@proc = lambda { |x| x }
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@raise_proc_returns_sentinel = lambda {|*_| :raise_proc_executed }
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@raise_proc_returns_arg = lambda {|*a| a }
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@arg_error_proc = lambda { |*_| raise ArgumentError, '' }
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@std_error_proc = lambda { |*_| raise StandardError, '' }
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@exc_error_proc = lambda { |*_| raise Exception, '' }
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end
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it "executes passed function" do
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@s.rb_rescue(@proc, :no_exc, @raise_proc_returns_arg, :exc).should == :no_exc
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end
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it "executes passed 'raise function' if a StandardError exception is raised" do
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@s.rb_rescue(@arg_error_proc, nil, @raise_proc_returns_sentinel, :exc).should == :raise_proc_executed
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@s.rb_rescue(@std_error_proc, nil, @raise_proc_returns_sentinel, :exc).should == :raise_proc_executed
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end
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it "passes the user supplied argument to the 'raise function' if a StandardError exception is raised" do
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arg1, _ = @s.rb_rescue(@arg_error_proc, nil, @raise_proc_returns_arg, :exc1)
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arg1.should == :exc1
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arg2, _ = @s.rb_rescue(@std_error_proc, nil, @raise_proc_returns_arg, :exc2)
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arg2.should == :exc2
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end
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it "passes the raised exception to the 'raise function' if a StandardError exception is raised" do
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_, exc1 = @s.rb_rescue(@arg_error_proc, nil, @raise_proc_returns_arg, :exc)
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exc1.class.should == ArgumentError
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_, exc2 = @s.rb_rescue(@std_error_proc, nil, @raise_proc_returns_arg, :exc)
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exc2.class.should == StandardError
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end
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it "raises an exception if passed function raises an exception other than StandardError" do
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lambda { @s.rb_rescue(@exc_error_proc, nil, @raise_proc_returns_arg, nil) }.should raise_error(Exception)
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end
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it "raises an exception if any exception is raised inside 'raise function'" do
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lambda { @s.rb_rescue(@std_error_proc, nil, @std_error_proc, nil) }.should raise_error(StandardError)
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end
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it "makes $! available only during 'raise function' execution" do
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@s.rb_rescue(@std_error_proc, nil, lambda { |*_| $! }, nil).class.should == StandardError
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$!.should == nil
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end
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it "returns the break value if the passed function yields to a block with a break" do
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def proc_caller
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@s.rb_rescue(lambda { |*_| yield }, nil, @proc, nil)
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end
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proc_caller { break :value }.should == :value
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end
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end
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describe "rb_rescue2" do
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it "only rescues if one of the passed exceptions is raised" do
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proc = lambda { |x| x }
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arg_error_proc = lambda { |*_| raise ArgumentError, '' }
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run_error_proc = lambda { |*_| raise RuntimeError, '' }
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type_error_proc = lambda { |*_| raise TypeError, '' }
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@s.rb_rescue2(arg_error_proc, :no_exc, proc, :exc, ArgumentError, RuntimeError).should == :exc
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@s.rb_rescue2(run_error_proc, :no_exc, proc, :exc, ArgumentError, RuntimeError).should == :exc
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lambda {
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@s.rb_rescue2(type_error_proc, :no_exc, proc, :exc, ArgumentError, RuntimeError)
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}.should raise_error(TypeError)
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end
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end
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describe "rb_catch" do
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before :each do
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ScratchPad.record []
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end
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it "executes passed function" do
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@s.rb_catch("foo", lambda { 1 }).should == 1
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end
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it "terminates the function at the point it was called" do
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proc = lambda do
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ScratchPad << :before_throw
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throw :thrown_value
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ScratchPad << :after_throw
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end
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@s.rb_catch("thrown_value", proc).should be_nil
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ScratchPad.recorded.should == [:before_throw]
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end
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it "raises an ArgumentError if the throw symbol isn't caught" do
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lambda { @s.rb_catch("foo", lambda { throw :bar }) }.should raise_error(ArgumentError)
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end
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end
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describe "rb_catch_obj" do
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before :each do
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ScratchPad.record []
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@tag = Object.new
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end
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it "executes passed function" do
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@s.rb_catch_obj(@tag, lambda { 1 }).should == 1
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end
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it "terminates the function at the point it was called" do
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proc = lambda do
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ScratchPad << :before_throw
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throw @tag
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ScratchPad << :after_throw
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end
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@s.rb_catch_obj(@tag, proc).should be_nil
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ScratchPad.recorded.should == [:before_throw]
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end
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it "raises an ArgumentError if the throw symbol isn't caught" do
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lambda { @s.rb_catch("foo", lambda { throw :bar }) }.should raise_error(ArgumentError)
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end
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end
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describe "rb_ensure" do
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it "executes passed function and returns its value" do
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proc = lambda { |x| x }
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@s.rb_ensure(proc, :proc, proc, :ensure_proc).should == :proc
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end
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it "executes passed 'ensure function' when no exception is raised" do
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foo = nil
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proc = lambda { |*_| }
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ensure_proc = lambda { |x| foo = x }
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@s.rb_ensure(proc, nil, ensure_proc, :foo)
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foo.should == :foo
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end
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it "executes passed 'ensure function' when an exception is raised" do
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foo = nil
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raise_proc = lambda { raise '' }
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ensure_proc = lambda { |x| foo = x }
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@s.rb_ensure(raise_proc, nil, ensure_proc, :foo) rescue nil
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foo.should == :foo
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end
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it "raises the same exception raised inside passed function" do
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raise_proc = lambda { |*_| raise RuntimeError, 'foo' }
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proc = lambda { |*_| }
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lambda { @s.rb_ensure(raise_proc, nil, proc, nil) }.should raise_error(RuntimeError, 'foo')
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end
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end
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describe "rb_eval_string" do
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it "evaluates a string of ruby code" do
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@s.rb_eval_string("1+1").should == 2
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end
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end
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describe "rb_block_proc" do
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it "converts the implicit block into a proc" do
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proc = @s.rb_block_proc() { 1+1 }
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proc.should be_kind_of(Proc)
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proc.call.should == 2
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end
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end
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describe "rb_exec_recursive" do
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it "detects recursive invocations of a method and indicates as such" do
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s = "hello"
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@s.rb_exec_recursive(s).should == s
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end
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end
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platform_is_not :windows do
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describe "rb_set_end_proc" do
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before :each do
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@r, @w = IO.pipe
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end
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after :each do
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@r.close
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@w.close
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Process.wait @pid
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end
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it "runs a C function on shutdown" do
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@pid = fork {
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@s.rb_set_end_proc(@w)
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}
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@r.read(1).should == "e"
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end
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end
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end
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describe "rb_f_sprintf" do
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it "returns a string according to format and arguments" do
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@s.rb_f_sprintf(["%d %f %s", 10, 2.5, "test"]).should == "10 2.500000 test"
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end
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end
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describe "rb_make_backtrace" do
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it "returns a caller backtrace" do
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backtrace = @s.rb_make_backtrace
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lines = backtrace.select {|l| l =~ /#{__FILE__}/ }
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lines.should_not be_empty
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end
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end
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describe "rb_obj_method" do
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it "returns the method object for a symbol" do
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method = @s.rb_obj_method("test", :size)
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method.owner.should == String
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method.name.to_sym.should == :size
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end
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it "returns the method object for a string" do
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method = @s.rb_obj_method("test", "size")
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method.owner.should == String
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method.name.to_sym.should == :size
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end
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end
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describe "rb_funcall3" do
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before :each do
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@obj = Object.new
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class << @obj
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def method_public; :method_public end
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def method_private; :method_private end
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private :method_private
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end
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end
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it "calls a public method" do
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@s.rb_funcall3(@obj, :method_public).should == :method_public
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end
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it "does not call a private method" do
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lambda { @s.rb_funcall3(@obj, :method_private) }.should raise_error(NoMethodError, /private/)
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end
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|
end
|
|
|
|
describe 'rb_funcall_with_block' do
|
|
before :each do
|
|
@obj = Object.new
|
|
class << @obj
|
|
def method_public; yield end
|
|
def method_private; yield end
|
|
private :method_private
|
|
end
|
|
end
|
|
|
|
it "calls a method with block" do
|
|
@s.rb_funcall_with_block(@obj, :method_public, proc { :result }).should == :result
|
|
end
|
|
|
|
it "does not call a private method" do
|
|
lambda { @s.rb_funcall_with_block(@obj, :method_private, proc { :result }) }.should raise_error(NoMethodError, /private/)
|
|
end
|
|
end
|
|
end
|