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require_relative 'spec_helper'
load_extension("gc")
describe "CApiGCSpecs" do
before :each do
@f = CApiGCSpecs.new
end
it "correctly gets the value from a registered address" do
@f.registered_tagged_address.should == 10
@f.registered_tagged_address.should equal(@f.registered_tagged_address)
@f.registered_reference_address.should == "Globally registered data"
@f.registered_reference_address.should equal(@f.registered_reference_address)
end
describe "rb_gc_enable" do
after do
GC.enable
end
it "enables GC when disabled" do
GC.disable
@f.rb_gc_enable.should be_true
end
it "GC stays enabled when enabled" do
GC.enable
@f.rb_gc_enable.should be_false
end
it "disables GC when enabled" do
GC.enable
@f.rb_gc_disable.should be_false
end
it "GC stays disabled when disabled" do
GC.disable
@f.rb_gc_disable.should be_true
end
end
describe "rb_gc" do
it "increases gc count" do
gc_count = GC.count
@f.rb_gc
GC.count.should > gc_count
end
end
describe "rb_gc_adjust_memory_usage" do
# Just check that it does not throw, as it seems hard to observe any effect
it "adjusts the amount of registered external memory" do
-> {
@f.rb_gc_adjust_memory_usage(8)
@f.rb_gc_adjust_memory_usage(-8)
}.should_not raise_error
end
end
describe "rb_gc_register_mark_object" do
it "can be called with an object" do
@f.rb_gc_register_mark_object(Object.new).should be_nil
end
end
describe "rb_gc_latest_gc_info" do
it "raises a TypeError when hash or symbol not given" do
-> { @f.rb_gc_latest_gc_info("foo") }.should raise_error(TypeError)
end
it "raises an ArgumentError when unknown symbol given" do
-> { @f.rb_gc_latest_gc_info(:unknown) }.should raise_error(ArgumentError)
end
it "returns the populated hash when a hash is given" do
h = {}
@f.rb_gc_latest_gc_info(h).should == h
h.size.should_not == 0
end
it "returns a value when symbol is given" do
@f.rb_gc_latest_gc_info(:state).should be_kind_of(Symbol)
end
end
end
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