diff options
Diffstat (limited to 'spec/ruby/core/io/set_encoding_spec.rb')
| -rw-r--r-- | spec/ruby/core/io/set_encoding_spec.rb | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/spec/ruby/core/io/set_encoding_spec.rb b/spec/ruby/core/io/set_encoding_spec.rb new file mode 100644 index 0000000000..1d6e2a8f3b --- /dev/null +++ b/spec/ruby/core/io/set_encoding_spec.rb @@ -0,0 +1,193 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +with_feature :encoding do + describe :io_set_encoding_write, shared: true do + it "sets the encodings to nil" do + @io = new_io @name, "#{@object}:ibm437:ibm866" + @io.set_encoding nil, nil + + @io.external_encoding.should be_nil + @io.internal_encoding.should be_nil + end + + it "prevents the encodings from changing when Encoding defaults are changed" do + @io = new_io @name, "#{@object}:utf-8:us-ascii" + @io.set_encoding nil, nil + + Encoding.default_external = Encoding::IBM437 + Encoding.default_internal = Encoding::IBM866 + + @io.external_encoding.should be_nil + @io.internal_encoding.should be_nil + end + + it "sets the encodings to the current Encoding defaults" do + @io = new_io @name, @object + + Encoding.default_external = Encoding::IBM437 + Encoding.default_internal = Encoding::IBM866 + + @io.set_encoding nil, nil + + @io.external_encoding.should == Encoding::IBM437 + @io.internal_encoding.should == Encoding::IBM866 + end + end + + describe "IO#set_encoding when passed nil, nil" do + before :each do + @external = Encoding.default_external + @internal = Encoding.default_internal + + Encoding.default_external = Encoding::UTF_8 + Encoding.default_internal = nil + + @name = tmp('io_set_encoding.txt') + touch(@name) + end + + after :each do + Encoding.default_external = @external + Encoding.default_internal = @internal + + @io.close if @io and not @io.closed? + rm_r @name + end + + describe "with 'r' mode" do + it "sets the encodings to the current Encoding defaults" do + @io = new_io @name, "r" + + Encoding.default_external = Encoding::IBM437 + Encoding.default_internal = Encoding::IBM866 + + @io.set_encoding nil, nil + @io.external_encoding.should equal(Encoding::IBM437) + @io.internal_encoding.should equal(Encoding::IBM866) + end + + it "prevents the #internal_encoding from changing when Encoding.default_internal is changed" do + @io = new_io @name, "r" + @io.set_encoding nil, nil + + Encoding.default_internal = Encoding::IBM437 + + @io.internal_encoding.should be_nil + end + + it "allows the #external_encoding to change when Encoding.default_external is changed" do + @io = new_io @name, "r" + @io.set_encoding nil, nil + + Encoding.default_external = Encoding::IBM437 + + @io.external_encoding.should equal(Encoding::IBM437) + end + end + + describe "with 'rb' mode" do + it "returns Encoding.default_external" do + @io = new_io @name, "rb" + @io.external_encoding.should equal(Encoding::ASCII_8BIT) + + @io.set_encoding nil, nil + @io.external_encoding.should equal(Encoding.default_external) + end + end + + describe "with 'r+' mode" do + it_behaves_like :io_set_encoding_write, nil, "r+" + end + + describe "with 'w' mode" do + it_behaves_like :io_set_encoding_write, nil, "w" + end + + describe "with 'w+' mode" do + it_behaves_like :io_set_encoding_write, nil, "w+" + end + + describe "with 'a' mode" do + it_behaves_like :io_set_encoding_write, nil, "a" + end + + describe "with 'a+' mode" do + it_behaves_like :io_set_encoding_write, nil, "a+" + end + end + + describe "IO#set_encoding" do + before :each do + @name = tmp('io_set_encoding.txt') + touch(@name) + @io = new_io @name + end + + after :each do + @io.close unless @io.closed? + rm_r @name + end + + it "returns self" do + @io.set_encoding(Encoding::UTF_8).should equal(@io) + end + + it "sets the external encoding when passed an Encoding argument" do + @io.set_encoding(Encoding::UTF_8) + @io.external_encoding.should == Encoding::UTF_8 + @io.internal_encoding.should be_nil + end + + it "sets the external and internal encoding when passed two Encoding arguments" do + @io.set_encoding(Encoding::UTF_8, Encoding::UTF_16BE) + @io.external_encoding.should == Encoding::UTF_8 + @io.internal_encoding.should == Encoding::UTF_16BE + end + + it "sets the external encoding when passed the name of an Encoding" do + @io.set_encoding("utf-8") + @io.external_encoding.should == Encoding::UTF_8 + @io.internal_encoding.should be_nil + end + + it "ignores the internal encoding if the same as external when passed Encoding objects" do + @io.set_encoding(Encoding::UTF_8, Encoding::UTF_8) + @io.external_encoding.should == Encoding::UTF_8 + @io.internal_encoding.should be_nil + end + + it "ignores the internal encoding if the same as external when passed encoding names separanted by ':'" do + @io.set_encoding("utf-8:utf-8") + @io.external_encoding.should == Encoding::UTF_8 + @io.internal_encoding.should be_nil + end + + it "sets the external and internal encoding when passed the names of Encodings separated by ':'" do + @io.set_encoding("utf-8:utf-16be") + @io.external_encoding.should == Encoding::UTF_8 + @io.internal_encoding.should == Encoding::UTF_16BE + end + + it "sets the external and internal encoding when passed two String arguments" do + @io.set_encoding("utf-8", "utf-16be") + @io.external_encoding.should == Encoding::UTF_8 + @io.internal_encoding.should == Encoding::UTF_16BE + end + + it "calls #to_str to convert an abject to a String" do + obj = mock("io_set_encoding") + obj.should_receive(:to_str).and_return("utf-8:utf-16be") + @io.set_encoding(obj) + @io.external_encoding.should == Encoding::UTF_8 + @io.internal_encoding.should == Encoding::UTF_16BE + end + + it "calls #to_str to convert the second argument to a String" do + obj = mock("io_set_encoding") + obj.should_receive(:to_str).at_least(1).times.and_return("utf-16be") + @io.set_encoding(Encoding::UTF_8, obj) + @io.external_encoding.should == Encoding::UTF_8 + @io.internal_encoding.should == Encoding::UTF_16BE + end + end +end |