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Diffstat (limited to 'spec/ruby/core/encoding/default_internal_spec.rb')
-rw-r--r-- | spec/ruby/core/encoding/default_internal_spec.rb | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/spec/ruby/core/encoding/default_internal_spec.rb b/spec/ruby/core/encoding/default_internal_spec.rb new file mode 100644 index 0000000000..3234929eec --- /dev/null +++ b/spec/ruby/core/encoding/default_internal_spec.rb @@ -0,0 +1,93 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +with_feature :encoding do + describe "Encoding.default_internal" do + before :each do + @original_encoding = Encoding.default_internal + end + + after :each do + Encoding.default_internal = @original_encoding + end + + it "is nil by default" do + Encoding.default_internal.should be_nil + end + + it "returns an Encoding object if a default internal encoding is set" do + Encoding.default_internal = Encoding::ASCII + Encoding.default_internal.should be_an_instance_of(Encoding) + end + + it "returns nil if no default internal encoding is set" do + Encoding.default_internal = nil + Encoding.default_internal.should be_nil + end + + it "returns the default internal encoding" do + Encoding.default_internal = Encoding::ASCII_8BIT + Encoding.default_internal.should == Encoding::ASCII_8BIT + end + + describe "with command line options" do + it "returns Encoding::UTF_8 if ruby was invoked with -U" do + ruby_exe("print Encoding.default_internal", options: '-U'). + should == 'UTF-8' + end + + it "uses the encoding specified when ruby is invoked with an '-E :internal' argument" do + ruby_exe("print Encoding.default_internal", options: '-E :SHIFT_JIS'). + should == 'Shift_JIS' + end + + it "uses the encoding specified when ruby is invoked with an '-E external:internal' argument" do + ruby_exe("print Encoding.default_internal", options: '-E UTF-8:SHIFT_JIS'). + should == 'Shift_JIS' + end + end + end + + describe "Encoding.default_internal=" do + before :each do + @original_encoding = Encoding.default_internal + end + + after :each do + Encoding.default_internal = @original_encoding + end + + it "sets the default internal encoding" do + Encoding.default_internal = Encoding::SHIFT_JIS + Encoding.default_internal.should == Encoding::SHIFT_JIS + end + + it "can accept a name of an encoding as a String" do + Encoding.default_internal = 'Shift_JIS' + Encoding.default_internal.should == Encoding::SHIFT_JIS + end + + it "calls #to_str to convert an object to a String" do + obj = mock('string') + obj.should_receive(:to_str).at_least(1).times.and_return('ascii') + + Encoding.default_internal = obj + Encoding.default_internal.should == Encoding::ASCII + end + + it "raises a TypeError if #to_str does not return a String" do + obj = mock('string') + obj.should_receive(:to_str).at_least(1).times.and_return(1) + + lambda { Encoding.default_internal = obj }.should raise_error(TypeError) + end + + it "raises a TypeError when passed an object not providing #to_str" do + lambda { Encoding.default_internal = mock("encoding") }.should raise_error(TypeError) + end + + it "accepts an argument of nil to unset the default internal encoding" do + Encoding.default_internal = nil + Encoding.default_internal.should be_nil + end + end +end |