summaryrefslogtreecommitdiff
path: root/spec/ruby/core/io/pipe_spec.rb
diff options
context:
space:
mode:
Diffstat (limited to 'spec/ruby/core/io/pipe_spec.rb')
-rw-r--r--spec/ruby/core/io/pipe_spec.rb225
1 files changed, 225 insertions, 0 deletions
diff --git a/spec/ruby/core/io/pipe_spec.rb b/spec/ruby/core/io/pipe_spec.rb
new file mode 100644
index 0000000000..9f1b01a5cd
--- /dev/null
+++ b/spec/ruby/core/io/pipe_spec.rb
@@ -0,0 +1,225 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "IO.pipe" do
+ after :each do
+ @r.close if @r && !@r.closed?
+ @w.close if @w && !@w.closed?
+ end
+
+ it "creates a two-ended pipe" do
+ @r, @w = IO.pipe
+ @w.puts "test_create_pipe\\n"
+ @w.close
+ @r.read(16).should == "test_create_pipe"
+ end
+
+ it "returns two IO objects" do
+ @r, @w = IO.pipe
+ @r.should.is_a?(IO)
+ @w.should.is_a?(IO)
+ end
+
+ it "returns instances of a subclass when called on a subclass" do
+ @r, @w = IOSpecs::SubIO.pipe
+ @r.should.instance_of?(IOSpecs::SubIO)
+ @w.should.instance_of?(IOSpecs::SubIO)
+ end
+
+ it "does not use IO.new method to create pipes and allows its overriding" do
+ ScratchPad.record []
+
+ # so redefined .new is not called, but original #initialize is
+ @r, @w = IOSpecs::SubIOWithRedefinedNew.pipe
+ ScratchPad.recorded.should == [:call_original_initialize, :call_original_initialize] # called 2 times - for each pipe (r and w)
+
+ @r.should.instance_of?(IOSpecs::SubIOWithRedefinedNew)
+ @w.should.instance_of?(IOSpecs::SubIOWithRedefinedNew)
+ end
+end
+
+describe "IO.pipe" do
+ describe "passed a block" do
+ it "yields two IO objects" do
+ IO.pipe do |r, w|
+ r.should.is_a?(IO)
+ w.should.is_a?(IO)
+ end
+ end
+
+ it "returns the result of the block" do
+ IO.pipe { |r, w| :result }.should == :result
+ end
+
+ it "closes both IO objects" do
+ r, w = IO.pipe do |_r, _w|
+ [_r, _w]
+ end
+ r.should.closed?
+ w.should.closed?
+ end
+
+ it "closes both IO objects when the block raises" do
+ r = w = nil
+ -> do
+ IO.pipe do |_r, _w|
+ r = _r
+ w = _w
+ raise RuntimeError
+ end
+ end.should.raise(RuntimeError)
+ r.should.closed?
+ w.should.closed?
+ end
+
+ it "allows IO objects to be closed within the block" do
+ r, w = IO.pipe do |_r, _w|
+ _r.close
+ _w.close
+ [_r, _w]
+ end
+ r.should.closed?
+ w.should.closed?
+ end
+ end
+end
+
+describe "IO.pipe" do
+ before :each do
+ @default_external = Encoding.default_external
+ @default_internal = Encoding.default_internal
+ end
+
+ after :each do
+ Encoding.default_external = @default_external
+ Encoding.default_internal = @default_internal
+ end
+
+ it "sets the external encoding of the read end to the default when passed no arguments" do
+ Encoding.default_external = Encoding::ISO_8859_1
+
+ IO.pipe do |r, w|
+ r.external_encoding.should == Encoding::ISO_8859_1
+ r.internal_encoding.should == nil
+ end
+ end
+
+ it "sets the internal encoding of the read end to the default when passed no arguments" do
+ Encoding.default_external = Encoding::ISO_8859_1
+ Encoding.default_internal = Encoding::UTF_8
+
+ IO.pipe do |r, w|
+ r.external_encoding.should == Encoding::ISO_8859_1
+ r.internal_encoding.should == Encoding::UTF_8
+ end
+ end
+
+ it "sets the internal encoding to nil if the same as the external" do
+ Encoding.default_external = Encoding::UTF_8
+ Encoding.default_internal = Encoding::UTF_8
+
+ IO.pipe do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == nil
+ end
+ end
+
+ it "sets the external encoding of the read end when passed an Encoding argument" do
+ IO.pipe(Encoding::UTF_8) do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == nil
+ end
+ end
+
+ it "sets the external and internal encodings of the read end when passed two Encoding arguments" do
+ IO.pipe(Encoding::UTF_8, Encoding::UTF_16BE) do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == Encoding::UTF_16BE
+ end
+ end
+
+ it "sets the external encoding of the read end when passed the name of an Encoding" do
+ IO.pipe("UTF-8") do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == nil
+ end
+ end
+
+ it "accepts 'bom|' prefix for external encoding" do
+ IO.pipe("BOM|UTF-8") do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == nil
+ end
+ end
+
+ it "sets the external and internal encodings specified as a String and separated with a colon" do
+ IO.pipe("UTF-8:ISO-8859-1") do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == Encoding::ISO_8859_1
+ end
+ end
+
+ it "accepts 'bom|' prefix for external encoding when specifying 'external:internal'" do
+ IO.pipe("BOM|UTF-8:ISO-8859-1") do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == Encoding::ISO_8859_1
+ end
+ end
+
+ it "sets the external and internal encoding when passed two String arguments" do
+ IO.pipe("UTF-8", "UTF-16BE") do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == Encoding::UTF_16BE
+ end
+ end
+
+ it "accepts an options Hash with one String encoding argument" do
+ IO.pipe("BOM|UTF-8:ISO-8859-1", invalid: :replace) do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == Encoding::ISO_8859_1
+ end
+ end
+
+ it "accepts an options Hash with two String encoding arguments" do
+ IO.pipe("UTF-8", "ISO-8859-1", invalid: :replace) do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == Encoding::ISO_8859_1
+ end
+ end
+
+ it "calls #to_hash to convert an options argument" do
+ options = mock("io pipe encoding options")
+ options.should_receive(:to_hash).and_return({ invalid: :replace })
+ IO.pipe("UTF-8", "ISO-8859-1", **options) { |r, w| }
+ end
+
+ it "calls #to_str to convert the first argument to a String" do
+ obj = mock("io_pipe_encoding")
+ obj.should_receive(:to_str).and_return("UTF-8:UTF-16BE")
+ IO.pipe(obj) do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == Encoding::UTF_16BE
+ end
+ end
+
+ it "calls #to_str to convert the second argument to a String" do
+ obj = mock("io_pipe_encoding")
+ obj.should_receive(:to_str).at_least(1).times.and_return("UTF-16BE")
+ IO.pipe(Encoding::UTF_8, obj) do |r, w|
+ r.external_encoding.should == Encoding::UTF_8
+ r.internal_encoding.should == Encoding::UTF_16BE
+ end
+ end
+
+ it "sets no external encoding for the write end" do
+ IO.pipe(Encoding::UTF_8) do |r, w|
+ w.external_encoding.should == nil
+ end
+ end
+
+ it "sets no internal encoding for the write end" do
+ IO.pipe(Encoding::UTF_8) do |r, w|
+ w.external_encoding.should == nil
+ end
+ end
+end
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-04 14:36:21 +0000