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describe :array_pack_arguments, shared: true do
it "raises an ArgumentError if there are fewer elements than the format requires" do
-> { [].pack(pack_format(1)) }.should raise_error(ArgumentError)
end
end
describe :array_pack_basic, shared: true do
before :each do
@obj = ArraySpecs.universal_pack_object
end
it "raises a TypeError when passed nil" do
-> { [@obj].pack(nil) }.should raise_error(TypeError)
end
it "raises a TypeError when passed an Integer" do
-> { [@obj].pack(1) }.should raise_error(TypeError)
end
end
describe :array_pack_basic_non_float, shared: true do
before :each do
@obj = ArraySpecs.universal_pack_object
end
it "ignores whitespace in the format string" do
[@obj, @obj].pack("a \t\n\v\f\r"+pack_format).should be_an_instance_of(String)
end
it "ignores comments in the format string" do
# 2 additional directives ('a') are required for the X directive
[@obj, @obj, @obj, @obj].pack("aa #{pack_format} # some comment \n#{pack_format}").should be_an_instance_of(String)
end
ruby_version_is ""..."3.2" do
it "warns in verbose mode that a directive is unknown" do
# additional directive ('a') is required for the X directive
-> { [@obj, @obj].pack("a R" + pack_format) }.should complain(/unknown pack directive 'R'/, verbose: true)
-> { [@obj, @obj].pack("a 0" + pack_format) }.should complain(/unknown pack directive '0'/, verbose: true)
-> { [@obj, @obj].pack("a :" + pack_format) }.should complain(/unknown pack directive ':'/, verbose: true)
end
end
ruby_version_is "3.2"..."3.3" do
# https://bugs.ruby-lang.org/issues/19150
# NOTE: it's just a plan of the Ruby core team
it "warns that a directive is unknown" do
# additional directive ('a') is required for the X directive
-> { [@obj, @obj].pack("a R" + pack_format) }.should complain(/unknown pack directive 'R'/)
-> { [@obj, @obj].pack("a 0" + pack_format) }.should complain(/unknown pack directive '0'/)
-> { [@obj, @obj].pack("a :" + pack_format) }.should complain(/unknown pack directive ':'/)
end
end
ruby_version_is "3.3" do
# https://bugs.ruby-lang.org/issues/19150
# NOTE: Added this case just to not forget about the decision in the ticket
it "raise ArgumentError when a directive is unknown" do
# additional directive ('a') is required for the X directive
-> { [@obj, @obj].pack("a R" + pack_format) }.should raise_error(ArgumentError)
-> { [@obj, @obj].pack("a 0" + pack_format) }.should raise_error(ArgumentError)
-> { [@obj, @obj].pack("a :" + pack_format) }.should raise_error(ArgumentError)
end
end
it "calls #to_str to coerce the directives string" do
d = mock("pack directive")
d.should_receive(:to_str).and_return("x"+pack_format)
[@obj, @obj].pack(d).should be_an_instance_of(String)
end
end
describe :array_pack_basic_float, shared: true do
it "ignores whitespace in the format string" do
[9.3, 4.7].pack(" \t\n\v\f\r"+pack_format).should be_an_instance_of(String)
end
it "ignores comments in the format string" do
[9.3, 4.7].pack(pack_format + "# some comment \n" + pack_format).should be_an_instance_of(String)
end
it "calls #to_str to coerce the directives string" do
d = mock("pack directive")
d.should_receive(:to_str).and_return("x"+pack_format)
[1.2, 4.7].pack(d).should be_an_instance_of(String)
end
end
describe :array_pack_no_platform, shared: true do
it "raises ArgumentError when the format modifier is '_'" do
->{ [1].pack(pack_format("_")) }.should raise_error(ArgumentError)
end
it "raises ArgumentError when the format modifier is '!'" do
->{ [1].pack(pack_format("!")) }.should raise_error(ArgumentError)
end
end
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