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require File.expand_path('../../../../spec_helper', __FILE__)
require File.expand_path('../shared/block_scanf.rb', __FILE__)
require 'scanf'
describe "String#scanf" do
it "returns an array containing the input converted in the specified type" do
"hello world".scanf("%s").should == ["hello"]
"hello world".scanf("%s%d").should == ["hello"]
"hello world".scanf("%s%c").should == ["hello", " "]
"hello world".scanf("%c%s").should == ["h", "ello"]
"hello world".scanf("%s%s").should == ["hello", "world"]
"hello world".scanf("%c").should == ["h"]
"123".scanf("%s").should == ["123"]
"123".scanf("%c").should == ["1"]
"123".scanf("%d").should == [123]
"123".scanf("%u").should == [123]
"123".scanf("%o").should == [83]
"123".scanf("%x").should == [291]
"123".scanf("%i").should == [123]
"0123".scanf("%i").should == [83]
"123".scanf("%f").should == [123.0]
"0X123".scanf("%i").should == [291]
"0x123".scanf("%i").should == [291]
end
it "returns an array containing the input converted in the specified type with given maximum field width" do
"hello world".scanf("%2s").should == ["he"]
"hello world".scanf("%2c").should == ["he"]
"123".scanf("%2s").should == ["12"]
"123".scanf("%2c").should == ["12"]
"123".scanf("%2d").should == [12]
"123".scanf("%2u").should == [12]
"123".scanf("%2o").should == [10]
"123".scanf("%2x").should == [18]
"123".scanf("%2i").should == [12]
"0123".scanf("%2i").should == [1]
"123".scanf("%2f").should == [12.0]
"0X123".scanf("%2i").should == [0]
"0X123".scanf("%3i").should == [1]
"0X123".scanf("%4i").should == [18]
end
it "returns an empty array when a wrong specifier is passed" do
"hello world".scanf("%a").should == []
"123".scanf("%1").should == []
"123".scanf("abc").should == []
"123".scanf(:d).should == []
end
end
describe "String#scanf with block" do
it_behaves_like(:scanf_string_block_scanf, :scanf)
end
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