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require_relative '../../spec_helper'
describe "SystemCallError.===" do
before :all do
@example_errno_class = Errno::EINVAL
@example_errno = @example_errno_class::Errno
end
it "returns true for an instance of the same class" do
Errno::EINVAL.should === Errno::EINVAL.new
end
it "returns true if errnos same" do
e = SystemCallError.new('foo', @example_errno)
@example_errno_class.===(e).should == true
end
it "returns false if errnos different" do
e = SystemCallError.new('foo', @example_errno + 1)
@example_errno_class.===(e).should == false
end
it "returns false if arg is not kind of SystemCallError" do
e = Object.new
@example_errno_class.===(e).should == false
end
it "returns true if receiver is generic and arg is kind of SystemCallError" do
unknown_error_number = Errno.constants.size
e = SystemCallError.new('foo', @example_errno)
SystemCallError.===(e).should == true
end
it "returns false if receiver is generic and arg is not kind of SystemCallError" do
unknown_error_number = Errno.constants.size
e = Object.new
SystemCallError.===(e).should == false
end
end
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