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describe :string_unpack_basic, :shared => true do
it "ignores whitespace in the format string" do
"abc".unpack("a \t\n\v\f\r"+unpack_format).should be_an_instance_of(Array)
end
it "calls #to_str to coerce the directives string" do
d = mock("unpack directive")
d.should_receive(:to_str).and_return("a"+unpack_format)
"abc".unpack(d).should be_an_instance_of(Array)
end
it "raises a TypeError when passed nil" do
lambda { "abc".unpack(nil) }.should raise_error(TypeError)
end
it "raises a TypeError when passed an Integer" do
lambda { "abc".unpack(1) }.should raise_error(TypeError)
end
end
describe :string_unpack_no_platform, :shared => true do
it "raises an ArgumentError when the format modifier is '_'" do
lambda { "abcdefgh".unpack(unpack_format("_")) }.should raise_error(ArgumentError)
end
it "raises an ArgumentError when the format modifier is '!'" do
lambda { "abcdefgh".unpack(unpack_format("!")) }.should raise_error(ArgumentError)
end
end
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