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62 lines
2 KiB
Ruby
62 lines
2 KiB
Ruby
# -*- encoding: utf-8 -*-
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require_relative '../../spec_helper'
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describe "Regexp#encoding" do
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it "returns an Encoding object" do
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/glar/.encoding.should be_an_instance_of(Encoding)
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end
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it "defaults to US-ASCII if the Regexp contains only US-ASCII character" do
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/ASCII/.encoding.should == Encoding::US_ASCII
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end
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it "returns US_ASCII if the 'n' modifier is supplied and only US-ASCII characters are present" do
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/ASCII/n.encoding.should == Encoding::US_ASCII
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end
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it "returns BINARY if the 'n' modifier is supplied and non-US-ASCII characters are present" do
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/\xc2\xa1/n.encoding.should == Encoding::BINARY
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end
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it "defaults to UTF-8 if \\u escapes appear" do
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/\u{9879}/.encoding.should == Encoding::UTF_8
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end
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it "defaults to UTF-8 if a literal UTF-8 character appears" do
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/¥/.encoding.should == Encoding::UTF_8
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end
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it "returns UTF-8 if the 'u' modifier is supplied" do
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/ASCII/u.encoding.should == Encoding::UTF_8
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end
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it "returns Windows-31J if the 's' modifier is supplied" do
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/ASCII/s.encoding.should == Encoding::Windows_31J
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end
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it "returns EUC_JP if the 'e' modifier is supplied" do
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/ASCII/e.encoding.should == Encoding::EUC_JP
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end
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it "upgrades the encoding to that of an embedded String" do
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str = "文字化け".encode('euc-jp')
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/#{str}/.encoding.should == Encoding::EUC_JP
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end
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it "ignores the encoding and uses US-ASCII if the string has only ASCII characters" do
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str = "abc".encode('euc-jp')
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str.encoding.should == Encoding::EUC_JP
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/#{str}/.encoding.should == Encoding::US_ASCII
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end
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it "ignores the default_internal encoding" do
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old_internal = Encoding.default_internal
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Encoding.default_internal = Encoding::EUC_JP
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/foo/.encoding.should_not == Encoding::EUC_JP
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Encoding.default_internal = old_internal
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end
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it "allows otherwise invalid characters if NOENCODING is specified" do
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Regexp.new('([\x00-\xFF])', Regexp::IGNORECASE | Regexp::NOENCODING).encoding.should == Encoding::BINARY
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end
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end
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