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Diffstat (limited to 'spec/ruby/core/regexp/encoding_spec.rb')
-rw-r--r-- | spec/ruby/core/regexp/encoding_spec.rb | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/spec/ruby/core/regexp/encoding_spec.rb b/spec/ruby/core/regexp/encoding_spec.rb new file mode 100644 index 0000000000..c30519c9d7 --- /dev/null +++ b/spec/ruby/core/regexp/encoding_spec.rb @@ -0,0 +1,58 @@ +# -*- encoding: utf-8 -*- +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Regexp#encoding" do + it "returns an Encoding object" do + /glar/.encoding.should be_an_instance_of(Encoding) + end + + it "defaults to US-ASCII if the Regexp contains only US-ASCII character" do + /ASCII/.encoding.should == Encoding::US_ASCII + end + + it "returns US_ASCII if the 'n' modifier is supplied and only US-ASCII characters are present" do + /ASCII/n.encoding.should == Encoding::US_ASCII + end + + it "returns ASCII-8BIT if the 'n' modifier is supplied and non-US-ASCII characters are present" do + /\xc2\xa1/n.encoding.should == Encoding::ASCII_8BIT + end + + it "defaults to UTF-8 if \\u escapes appear" do + /\u{9879}/.encoding.should == Encoding::UTF_8 + end + + it "defaults to UTF-8 if a literal UTF-8 character appears" do + /¥/.encoding.should == Encoding::UTF_8 + end + + it "returns UTF-8 if the 'u' modifier is supplied" do + /ASCII/u.encoding.should == Encoding::UTF_8 + end + + it "returns Windows-31J if the 's' modifier is supplied" do + /ASCII/s.encoding.should == Encoding::Windows_31J + end + + it "returns EUC_JP if the 'e' modifier is supplied" do + /ASCII/e.encoding.should == Encoding::EUC_JP + end + + it "upgrades the encoding to that of an embedded String" do + str = "文字化け".encode('euc-jp') + /#{str}/.encoding.should == Encoding::EUC_JP + end + + it "ignores the encoding and uses US-ASCII if the string has only ASCII characters" do + str = "abc".encode('euc-jp') + str.encoding.should == Encoding::EUC_JP + /#{str}/.encoding.should == Encoding::US_ASCII + end + + it "ignores the default_internal encoding" do + old_internal = Encoding.default_internal + Encoding.default_internal = Encoding::EUC_JP + /foo/.encoding.should_not == Encoding::EUC_JP + Encoding.default_internal = old_internal + end +end |