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describe :array_pack_numeric_basic, shared: true do
it "returns an empty String if count is zero" do
[1].pack(pack_format(0)).should == ""
end
it "raises a TypeError when passed nil" do
lambda { [nil].pack(pack_format) }.should raise_error(TypeError)
end
it "raises a TypeError when passed true" do
lambda { [true].pack(pack_format) }.should raise_error(TypeError)
end
it "raises a TypeError when passed false" do
lambda { [false].pack(pack_format) }.should raise_error(TypeError)
end
it "returns an ASCII-8BIT string" do
[0xFF].pack(pack_format).encoding.should == Encoding::ASCII_8BIT
[0xE3, 0x81, 0x82].pack(pack_format(3)).encoding.should == Encoding::ASCII_8BIT
end
end
describe :array_pack_integer, shared: true do
it "raises a TypeError when the object does not respond to #to_int" do
obj = mock('not an integer')
lambda { [obj].pack(pack_format) }.should raise_error(TypeError)
end
it "raises a TypeError when passed a String" do
lambda { ["5"].pack(pack_format) }.should raise_error(TypeError)
end
end
describe :array_pack_float, shared: true do
it "raises a TypeError if a String does not represent a floating point number" do
lambda { ["a"].pack(pack_format) }.should raise_error(TypeError)
end
it "raises a TypeError when the object does not respond to #to_f" do
obj = mock('not an float')
lambda { [obj].pack(pack_format) }.should raise_error(TypeError)
end
end
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