diff options
Diffstat (limited to 'spec/ruby/core/io/internal_encoding_spec.rb')
-rw-r--r-- | spec/ruby/core/io/internal_encoding_spec.rb | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/spec/ruby/core/io/internal_encoding_spec.rb b/spec/ruby/core/io/internal_encoding_spec.rb new file mode 100644 index 0000000000..7578559838 --- /dev/null +++ b/spec/ruby/core/io/internal_encoding_spec.rb @@ -0,0 +1,140 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +with_feature :encoding do + describe :io_internal_encoding, shared: true do + describe "when Encoding.default_internal is not set" do + before :each do + Encoding.default_internal = nil + end + + it "returns nil if the internal encoding is not set" do + @io = new_io @name, @object + @io.internal_encoding.should be_nil + end + + it "returns nil if Encoding.default_internal is changed after the instance is created" do + @io = new_io @name, @object + Encoding.default_internal = Encoding::IBM437 + @io.internal_encoding.should be_nil + end + + it "returns the value set when the instance was created" do + @io = new_io @name, "#{@object}:utf-8:euc-jp" + Encoding.default_internal = Encoding::IBM437 + @io.internal_encoding.should equal(Encoding::EUC_JP) + end + + it "returns the value set by #set_encoding" do + @io = new_io @name, @object + @io.set_encoding(Encoding::US_ASCII, Encoding::IBM437) + @io.internal_encoding.should equal(Encoding::IBM437) + end + end + + describe "when Encoding.default_internal == Encoding.default_external" do + before :each do + Encoding.default_external = Encoding::IBM866 + Encoding.default_internal = Encoding::IBM866 + end + + it "returns nil" do + @io = new_io @name, @object + @io.internal_encoding.should be_nil + end + + it "returns nil regardless of Encoding.default_internal changes" do + @io = new_io @name, @object + Encoding.default_internal = Encoding::IBM437 + @io.internal_encoding.should be_nil + end + end + + describe "when Encoding.default_internal != Encoding.default_external" do + before :each do + Encoding.default_external = Encoding::IBM437 + Encoding.default_internal = Encoding::IBM866 + end + + it "returns the value of Encoding.default_internal when the instance was created if the internal encoding is not set" do + @io = new_io @name, @object + @io.internal_encoding.should equal(Encoding::IBM866) + end + + it "does not change when Encoding.default_internal is changed" do + @io = new_io @name, @object + Encoding.default_internal = Encoding::IBM437 + @io.internal_encoding.should equal(Encoding::IBM866) + end + + it "returns the internal encoding set when the instance was created" do + @io = new_io @name, "#{@object}:utf-8:euc-jp" + @io.internal_encoding.should equal(Encoding::EUC_JP) + end + + it "does not change when set and Encoding.default_internal is changed" do + @io = new_io @name, "#{@object}:utf-8:euc-jp" + Encoding.default_internal = Encoding::IBM437 + @io.internal_encoding.should equal(Encoding::EUC_JP) + end + + it "returns the value set by #set_encoding" do + @io = new_io @name, @object + @io.set_encoding(Encoding::US_ASCII, Encoding::IBM437) + @io.internal_encoding.should equal(Encoding::IBM437) + end + + it "returns nil when Encoding.default_external is ASCII-8BIT and the internal encoding is not set" do + Encoding.default_external = Encoding::ASCII_8BIT + @io = new_io @name, @object + @io.internal_encoding.should be_nil + end + + it "returns nil when the external encoding is ASCII-8BIT and the internal encoding is not set" do + @io = new_io @name, "#{@object}:ascii-8bit" + @io.internal_encoding.should be_nil + end + end + end + + describe "IO#internal_encoding" do + before :each do + @external = Encoding.default_external + @internal = Encoding.default_internal + + @name = tmp("io_internal_encoding") + touch(@name) + end + + after :each do + @io.close if @io + rm_r @name + + Encoding.default_external = @external + Encoding.default_internal = @internal + end + + describe "with 'r' mode" do + it_behaves_like :io_internal_encoding, nil, "r" + end + + describe "with 'r+' mode" do + it_behaves_like :io_internal_encoding, nil, "r+" + end + + describe "with 'w' mode" do + it_behaves_like :io_internal_encoding, nil, "w" + end + + describe "with 'w+' mode" do + it_behaves_like :io_internal_encoding, nil, "w+" + end + + describe "with 'a' mode" do + it_behaves_like :io_internal_encoding, nil, "a" + end + + describe "with 'a+' mode" do + it_behaves_like :io_internal_encoding, nil, "a+" + end + end +end |