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describe :strscan_concat, shared: true do
it "concatenates the given argument to self and returns self" do
s = StringScanner.new("hello ")
s.send(@method, 'world').should == s
s.string.should == "hello world"
s.eos?.should be_false
end
it "raises a TypeError if the given argument can't be converted to a String" do
lambda { StringScanner.new('hello').send(@method, :world) }.should raise_error(TypeError)
lambda { StringScanner.new('hello').send(@method, mock('x')) }.should raise_error(TypeError)
end
end
describe :strscan_concat_fixnum, shared: true do
it "raises a TypeError" do
a = StringScanner.new("hello world")
lambda { a.send(@method, 333) }.should raise_error(TypeError)
b = StringScanner.new("")
lambda { b.send(@method, (256 * 3 + 64)) }.should raise_error(TypeError)
lambda { b.send(@method, -200) }.should raise_error(TypeError)
end
it "doesn't call to_int on the argument" do
x = mock('x')
x.should_not_receive(:to_int)
lambda { StringScanner.new("").send(@method, x) }.should raise_error(TypeError)
end
end
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