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require_relative '../../spec_helper'
require 'strscan'
version_is StringScanner::Version, "3.1.1" do # ruby_version_is "3.4"
describe "StringScanner#scan_byte" do
it "scans one byte and returns it as on Integer" do
s = StringScanner.new('abc') # "abc".bytes => [97, 98, 99]
s.scan_byte.should == 97
s.scan_byte.should == 98
s.scan_byte.should == 99
end
it "is not multi-byte character sensitive" do
s = StringScanner.new("あ") # "あ".bytes => [227, 129, 130]
s.scan_byte.should == 227
s.scan_byte.should == 129
s.scan_byte.should == 130
end
it "returns nil at the end of the string" do
s = StringScanner.new('a')
s.scan_byte # skip one
s.scan_byte.should == nil
s.pos.should == 1
end
it "changes current position" do
s = StringScanner.new('abc')
s.pos.should == 0
s.scan_byte
s.pos.should == 1
end
it "sets the last match result" do
s = StringScanner.new('abc')
s.pos = 1
s.scan_byte
s.pre_match.should == "a"
s.matched.should == "b"
s.post_match.should == "c"
end
describe "#[] successive call with a capture group name" do
# https://github.com/ruby/strscan/issues/139
ruby_version_is ""..."3.5" do # Don't run on 3.5.0dev that already contains not released fixes
version_is StringScanner::Version, "3.1.1"..."3.1.3" do # ruby_version_is "3.4.0"..."3.4.3"
it "returns nil" do
s = StringScanner.new("abc")
s.scan_byte
s.should.matched?
s[:a].should be_nil
end
end
end
version_is StringScanner::Version, "3.1.3" do # ruby_version_is "3.4.3"
it "raises IndexError" do
s = StringScanner.new("abc")
s.scan_byte
s.should.matched?
-> { s[:a] }.should raise_error(IndexError)
end
end
it "returns a matching character when given Integer index" do
s = StringScanner.new("This is a test")
s.scan_byte
s[0].should == "T"
end
# https://github.com/ruby/strscan/issues/135
ruby_version_is ""..."3.5" do # Don't run on 3.5.0dev that already contains not released fixes
version_is StringScanner::Version, "3.1.1"..."3.1.3" do # ruby_version_is "3.4.0"..."3.4.3"
it "ignores the previous matching with Regexp" do
s = StringScanner.new("abc")
s.exist?(/(?<a>a)/)
s.should.matched?
s[:a].should == "a"
s.scan_byte
s.should.matched?
s[:a].should == nil
end
end
end
version_is StringScanner::Version, "3.1.3" do # ruby_version_is "3.4.0"..."3.4.3"
it "ignores the previous matching with Regexp" do
s = StringScanner.new("abc")
s.exist?(/(?<a>a)/)
s.should.matched?
s[:a].should == "a"
s.scan_byte
s.should.matched?
-> { s[:a] }.should raise_error(IndexError)
end
end
end
end
end
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