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require 'scanf'
describe :scanf_string_block_scanf, :shared => true do
it "passes each match to the block as an array" do
a = []
"hello world".send(@method, "%s%s"){|w| a << w}
a.should == [["hello", "world"]]
end
it "keeps scanning the input and cycling back to the beginning of the input string" do
a = []
"hello world".send(@method, "%s"){|w| a << w}
a.should == [["hello"], ["world"]]
s = []
str = "123 abc 456 def 789 ghi"
s = str.send(@method, "%d%s"){|num,str| [num * 2, str.upcase]}
s.should == [[246, "ABC"], [912, "DEF"], [1578, "GHI"]]
end
it "returns an empty array when a wrong specifier is passed" do
a = []
"hello world".send(@method, "%z"){|w| a << w}
a.empty?.should be_true
end
end
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