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52 lines
1.2 KiB
Ruby
52 lines
1.2 KiB
Ruby
describe :strscan_pos, shared: true do
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before :each do
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@s = StringScanner.new("This is a test")
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end
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it "returns the position of the scan pointer" do
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@s.send(@method).should == 0
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@s.scan_until(/This is/)
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@s.send(@method).should == 7
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@s.get_byte
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@s.send(@method).should == 8
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@s.terminate
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@s.send(@method).should == 14
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end
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it "returns 0 in the reset position" do
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@s.reset
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@s.send(@method).should == 0
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end
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it "returns the length of the string in the terminate position" do
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@s.terminate
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@s.send(@method).should == @s.string.length
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end
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end
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describe :strscan_pos_set, shared: true do
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before :each do
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@s = StringScanner.new("This is a test")
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end
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it "modify the scan pointer" do
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@s.send(@method, 5)
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@s.rest.should == "is a test"
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end
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it "positions from the end if the argument is negative" do
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@s.send(@method, -2)
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@s.rest.should == "st"
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@s.pos.should == 12
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end
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it "raises a RangeError if position too far backward" do
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-> {
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@s.send(@method, -20)
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}.should raise_error(RangeError)
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end
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it "raises a RangeError when the passed argument is out of range" do
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-> { @s.send(@method, 20) }.should raise_error(RangeError)
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end
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end
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