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Diffstat (limited to 'spec/rubyspec/core/string/scrub_spec.rb')
-rw-r--r-- | spec/rubyspec/core/string/scrub_spec.rb | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/spec/rubyspec/core/string/scrub_spec.rb b/spec/rubyspec/core/string/scrub_spec.rb new file mode 100644 index 0000000000..815eb0fbb7 --- /dev/null +++ b/spec/rubyspec/core/string/scrub_spec.rb @@ -0,0 +1,101 @@ +# -*- encoding: utf-8 -*- +require File.expand_path("../../../spec_helper", __FILE__) + +describe "String#scrub with a default replacement" do + it "returns self for valid strings" do + input = "foo" + + input.scrub.should == input + end + + it "replaces invalid byte sequences" do + x81 = [0x81].pack('C').force_encoding('utf-8') + "abc\u3042#{x81}".scrub.should == "abc\u3042\uFFFD" + end + + it "returns a copy of self when the input encoding is BINARY" do + input = "foo".encode('BINARY') + + input.scrub.should == "foo" + end + + + it "replaces invalid byte sequences when using ASCII as the input encoding" do + xE3x80 = [0xE3, 0x80].pack('CC').force_encoding 'utf-8' + input = "abc\u3042#{xE3x80}".force_encoding('ASCII') + input.scrub.should == "abc?????" + end +end + +describe "String#scrub with a custom replacement" do + it "returns self for valid strings" do + input = "foo" + + input.scrub("*").should == input + end + + it "replaces invalid byte sequences" do + x81 = [0x81].pack('C').force_encoding('utf-8') + "abc\u3042#{x81}".scrub("*").should == "abc\u3042*" + end + + it "replaces an incomplete character at the end with a single replacement" do + xE3x80 = [0xE3, 0x80].pack('CC').force_encoding 'utf-8' + xE3x80.scrub("*").should == "*" + end + + it "raises ArgumentError for replacements with an invalid encoding" do + x81 = [0x81].pack('C').force_encoding('utf-8') + xE4 = [0xE4].pack('C').force_encoding('utf-8') + block = lambda { "foo#{x81}".scrub(xE4) } + + block.should raise_error(ArgumentError) + end + + it "raises TypeError when a non String replacement is given" do + x81 = [0x81].pack('C').force_encoding('utf-8') + block = lambda { "foo#{x81}".scrub(1) } + + block.should raise_error(TypeError) + end +end + +describe "String#scrub with a block" do + it "returns self for valid strings" do + input = "foo" + + input.scrub { |b| "*" }.should == input + end + + it "replaces invalid byte sequences" do + xE3x80 = [0xE3, 0x80].pack('CC').force_encoding 'utf-8' + replaced = "abc\u3042#{xE3x80}".scrub { |b| "<#{b.unpack("H*")[0]}>" } + + replaced.should == "abc\u3042<e380>" + end + + it "replaces invalid byte sequences using a custom encoding" do + x80x80 = [0x80, 0x80].pack('CC').force_encoding 'utf-8' + replaced = x80x80.scrub do |bad| + bad.encode(Encoding::UTF_8, Encoding::Windows_1252) + end + + replaced.should == "€€" + end +end + +describe "String#scrub!" do + it "modifies self for valid strings" do + x81 = [0x81].pack('C').force_encoding('utf-8') + input = "a#{x81}" + input.scrub! + input.should == "a\uFFFD" + end + + it "accepts blocks" do + x81 = [0x81].pack('C').force_encoding('utf-8') + input = "a#{x81}" + input.scrub! { |b| "<?>" } + input.should == "a<?>" + end +end |