1 files changed, 413 insertions, 0 deletions
diff --git a/spec/ruby/core/io/shared/new.rb b/spec/ruby/core/io/shared/new.rb
new file mode 100644
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+++ b/spec/ruby/core/io/shared/new.rb
@@ -0,0 +1,413 @@
+require_relative '../fixtures/classes'
+
+# NOTE: should be synchronized with library/stringio/initialize_spec.rb
+
+# This group of specs may ONLY contain specs that do successfully create
+# an IO instance from the file descriptor returned by #new_fd helper.
+describe :io_new, shared: true do
+  before :each do
+    @name = tmp("io_new.txt")
+    @fd = new_fd @name
+    @io = nil
+  end
+
+  after :each do
+    if @io
+      @io.close
+    elsif @fd
+      IO.new(@fd, "w").close
+    end
+    rm_r @name
+  end
+
+  it "creates an IO instance from an Integer argument" do
+    @io = IO.send(@method, @fd, "w")
+    @io.should.instance_of?(IO)
+  end
+
+  it "creates an IO instance when STDOUT is closed" do
+    suppress_warning do
+      stdout = STDOUT
+      stdout_file = tmp("stdout.txt")
+
+      begin
+        @io = IO.send(@method, @fd, "w")
+        @io.should.instance_of?(IO)
+      ensure
+        STDOUT = stdout
+        rm_r stdout_file
+      end
+    end
+  end
+
+  it "creates an IO instance when STDERR is closed" do
+    suppress_warning do
+      stderr = STDERR
+      stderr_file = tmp("stderr.txt")
+      STDERR = new_io stderr_file
+      STDERR.close
+
+      begin
+        @io = IO.send(@method, @fd, "w")
+        @io.should.instance_of?(IO)
+      ensure
+        STDERR = stderr
+        rm_r stderr_file
+      end
+    end
+  end
+
+  it "calls #to_int on an object to convert to an Integer" do
+    obj = mock("file descriptor")
+    obj.should_receive(:to_int).and_return(@fd)
+    @io = IO.send(@method, obj, "w")
+    @io.should.instance_of?(IO)
+  end
+
+  it "accepts options as keyword arguments" do
+    @io = IO.send(@method, @fd, "w", flags: File::CREAT)
+    @io.write("foo").should == 3
+
+    -> {
+      IO.send(@method, @fd, "w", {flags: File::CREAT})
+    }.should.raise(ArgumentError, "wrong number of arguments (given 3, expected 1..2)")
+  end
+
+  it "accepts a :mode option" do
+    @io = IO.send(@method, @fd, mode: "w")
+    @io.write("foo").should == 3
+  end
+
+  it "accepts a mode argument set to nil with a valid :mode option" do
+    @io = IO.send(@method, @fd, nil, mode: "w")
+    @io.write("foo").should == 3
+  end
+
+  it "accepts a mode argument with a :mode option set to nil" do
+    @io = IO.send(@method, @fd, "w", mode: nil)
+    @io.write("foo").should == 3
+  end
+
+  it "uses the external encoding specified in the mode argument" do
+    @io = IO.send(@method, @fd, 'w:utf-8')
+    @io.external_encoding.to_s.should == 'UTF-8'
+  end
+
+  it "uses the external and the internal encoding specified in the mode argument" do
+    @io = IO.send(@method, @fd, 'w:utf-8:ISO-8859-1')
+    @io.external_encoding.to_s.should == 'UTF-8'
+    @io.internal_encoding.to_s.should == 'ISO-8859-1'
+  end
+
+  it "uses the external encoding specified via the :external_encoding option" do
+    @io = IO.send(@method, @fd, 'w', external_encoding: 'utf-8')
+    @io.external_encoding.to_s.should == 'UTF-8'
+  end
+
+  it "uses the internal encoding specified via the :internal_encoding option" do
+    @io = IO.send(@method, @fd, 'w', internal_encoding: 'ibm866')
+    @io.internal_encoding.to_s.should == 'IBM866'
+  end
+
+  it "uses the colon-separated encodings specified via the :encoding option" do
+    @io = IO.send(@method, @fd, 'w', encoding: 'utf-8:ISO-8859-1')
+    @io.external_encoding.to_s.should == 'UTF-8'
+    @io.internal_encoding.to_s.should == 'ISO-8859-1'
+  end
+
+  it "uses the :encoding option as the external encoding when only one is given" do
+    @io = IO.send(@method, @fd, 'w', encoding: 'ISO-8859-1')
+    @io.external_encoding.to_s.should == 'ISO-8859-1'
+  end
+
+  it "uses the :encoding options as the external encoding when it's an Encoding object" do
+    @io = IO.send(@method, @fd, 'w', encoding: Encoding::ISO_8859_1)
+    @io.external_encoding.should == Encoding::ISO_8859_1
+  end
+
+  it "ignores the :encoding option when the :external_encoding option is present" do
+    -> {
+      @io = IO.send(@method, @fd, 'w', external_encoding: 'utf-8', encoding: 'iso-8859-1:iso-8859-1')
+    }.should complain(/Ignoring encoding parameter/)
+    @io.external_encoding.to_s.should == 'UTF-8'
+  end
+
+  it "ignores the :encoding option when the :internal_encoding option is present" do
+    -> {
+      @io = IO.send(@method, @fd, 'w', internal_encoding: 'ibm866', encoding: 'iso-8859-1:iso-8859-1')
+    }.should complain(/Ignoring encoding parameter/)
+    @io.internal_encoding.to_s.should == 'IBM866'
+  end
+
+  it "uses the encoding specified via the :mode option hash" do
+    @io = IO.send(@method, @fd, mode: 'w:utf-8:ISO-8859-1')
+    @io.external_encoding.to_s.should == 'UTF-8'
+    @io.internal_encoding.to_s.should == 'ISO-8859-1'
+  end
+
+  it "ignores the :internal_encoding option when the same as the external encoding" do
+    @io = IO.send(@method, @fd, 'w', external_encoding: 'utf-8', internal_encoding: 'utf-8')
+    @io.external_encoding.to_s.should == 'UTF-8'
+    @io.internal_encoding.to_s.should == ''
+  end
+
+  it "sets internal encoding to nil when passed '-'" do
+    @io = IO.send(@method, @fd, 'w', external_encoding: 'utf-8', internal_encoding: '-')
+    @io.external_encoding.to_s.should == 'UTF-8'
+    @io.internal_encoding.to_s.should == ''
+  end
+
+  it "sets binmode from mode string" do
+    @io = IO.send(@method, @fd, 'wb')
+    @io.should.binmode?
+  end
+
+  it "does not set binmode without being asked" do
+    @io = IO.send(@method, @fd, 'w')
+    @io.should_not.binmode?
+  end
+
+  it "sets binmode from :binmode option" do
+    @io = IO.send(@method, @fd, 'w', binmode: true)
+    @io.should.binmode?
+  end
+
+  it "does not set binmode from false :binmode" do
+    @io = IO.send(@method, @fd, 'w', binmode: false)
+    @io.should_not.binmode?
+  end
+
+  it "sets external encoding to binary with binmode in mode string" do
+    @io = IO.send(@method, @fd, 'wb')
+    @io.external_encoding.should == Encoding::BINARY
+  end
+
+  # #5917
+  it "sets external encoding to binary with :binmode option" do
+    @io = IO.send(@method, @fd, 'w', binmode: true)
+    @io.external_encoding.should == Encoding::BINARY
+  end
+
+  it "does not use binary encoding when mode encoding is specified" do
+    @io = IO.send(@method, @fd, 'wb:iso-8859-1')
+    @io.external_encoding.to_s.should == 'ISO-8859-1'
+  end
+
+  it "does not use binary encoding when :encoding option is specified" do
+    @io = IO.send(@method, @fd, 'wb', encoding: "iso-8859-1")
+    @io.external_encoding.to_s.should == 'ISO-8859-1'
+  end
+
+  it "does not use binary encoding when :external_encoding option is specified" do
+    @io = IO.send(@method, @fd, 'wb', external_encoding: "iso-8859-1")
+    @io.external_encoding.to_s.should == 'ISO-8859-1'
+  end
+
+  it "does not use binary encoding when :internal_encoding option is specified" do
+    @io = IO.send(@method, @fd, 'wb', internal_encoding: "ibm866")
+    @io.internal_encoding.to_s.should == 'IBM866'
+  end
+
+  it "does not use binary encoding when mode encoding is specified along with binmode: true option" do
+    @io = IO.send(@method, @fd, 'w:iso-8859-1', binmode: true)
+    @io.external_encoding.to_s.should == 'ISO-8859-1'
+  end
+
+  it "does not use textmode argument when mode encoding is specified" do
+    @io = IO.send(@method, @fd, 'w:ascii-8bit', textmode: true)
+    @io.external_encoding.to_s.should == 'ASCII-8BIT'
+  end
+
+  it "does not use binmode argument when external encoding is specified via the :external_encoding option" do
+    @io = IO.send(@method, @fd, 'w', binmode: true, external_encoding: 'iso-8859-1')
+    @io.external_encoding.to_s.should == 'ISO-8859-1'
+  end
+
+  it "does not use textmode argument when external encoding is specified via the :external_encoding option" do
+    @io = IO.send(@method, @fd, 'w', textmode: true, external_encoding: 'ascii-8bit')
+    @io.external_encoding.to_s.should == 'ASCII-8BIT'
+  end
+
+  it "raises ArgumentError for nil options" do
+    -> {
+      IO.send(@method, @fd, 'w', nil)
+    }.should.raise(ArgumentError)
+  end
+
+  it "coerces mode with #to_str" do
+    mode = mock("mode")
+    mode.should_receive(:to_str).and_return('w')
+    @io = IO.send(@method, @fd, mode)
+  end
+
+  it "coerces mode with #to_int" do
+    mode = mock("mode")
+    mode.should_receive(:to_int).and_return(File::WRONLY)
+    @io = IO.send(@method, @fd, mode)
+  end
+
+  it "coerces mode with #to_str when passed in options" do
+    mode = mock("mode")
+    mode.should_receive(:to_str).and_return('w')
+    @io = IO.send(@method, @fd, mode: mode)
+  end
+
+  it "coerces mode with #to_int when passed in options" do
+    mode = mock("mode")
+    mode.should_receive(:to_int).and_return(File::WRONLY)
+    @io = IO.send(@method, @fd, mode: mode)
+  end
+
+  it "coerces :encoding option with #to_str" do
+    encoding = mock("encoding")
+    encoding.should_receive(:to_str).and_return('utf-8')
+    @io = IO.send(@method, @fd, 'w', encoding: encoding)
+  end
+
+  it "coerces :external_encoding option with #to_str" do
+    encoding = mock("encoding")
+    encoding.should_receive(:to_str).and_return('utf-8')
+    @io = IO.send(@method, @fd, 'w', external_encoding: encoding)
+  end
+
+  it "coerces :internal_encoding option with #to_str" do
+    encoding = mock("encoding")
+    encoding.should_receive(:to_str).at_least(:once).and_return('utf-8')
+    @io = IO.send(@method, @fd, 'w', internal_encoding: encoding)
+  end
+
+  it "coerces options as third argument with #to_hash" do
+    options = mock("options")
+    options.should_receive(:to_hash).and_return({})
+    @io = IO.send(@method, @fd, 'w', **options)
+  end
+
+  it "coerces options as second argument with #to_hash" do
+    options = mock("options")
+    options.should_receive(:to_hash).and_return({})
+    @io = IO.send(@method, @fd, **options)
+  end
+
+  it "accepts an :autoclose option" do
+    @io = IO.send(@method, @fd, 'w', autoclose: false)
+    @io.should_not.autoclose?
+    @io.autoclose = true
+  end
+
+  it "accepts any truthy option :autoclose" do
+    @io = IO.send(@method, @fd, 'w', autoclose: 42)
+    @io.should.autoclose?
+  end
+end
+
+# This group of specs may ONLY contain specs that do not actually create
+# an IO instance from the file descriptor returned by #new_fd helper.
+describe :io_new_errors, shared: true do
+  before :each do
+    @name = tmp("io_new.txt")
+    @fd = new_fd @name
+  end
+
+  after :each do
+    IO.new(@fd, "w").close if @fd
+    rm_r @name
+  end
+
+  it "raises an Errno::EBADF if the file descriptor is not valid" do
+    -> { IO.send(@method, -1, "w") }.should.raise(Errno::EBADF)
+  end
+
+  it "raises an IOError if passed a closed stream" do
+    -> { IO.send(@method, IOSpecs.closed_io.fileno, 'w') }.should.raise(IOError)
+  end
+
+  platform_is_not :windows do
+    it "raises an Errno::EINVAL if the new mode is not compatible with the descriptor's current mode" do
+      -> { IO.send(@method, @fd, "r") }.should.raise(Errno::EINVAL)
+    end
+  end
+
+  it "raises ArgumentError if passed an empty mode string" do
+    -> { IO.send(@method, @fd, "") }.should.raise(ArgumentError)
+  end
+
+  it "raises an error if passed modes two ways" do
+    -> {
+      IO.send(@method, @fd, "w", mode: "w")
+    }.should.raise(ArgumentError)
+  end
+
+  it "raises an error if passed encodings two ways" do
+    -> {
+      @io = IO.send(@method, @fd, 'w:ISO-8859-1', encoding: 'ISO-8859-1')
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, 'w:ISO-8859-1', external_encoding: 'ISO-8859-1')
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, 'w:ISO-8859-1', internal_encoding: 'ISO-8859-1')
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, 'w:ISO-8859-1:UTF-8', internal_encoding: 'ISO-8859-1')
+    }.should.raise(ArgumentError)
+  end
+
+  it "raises an error if passed matching binary/text mode two ways" do
+    -> {
+      @io = IO.send(@method, @fd, "wb", binmode: true)
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, "wt", textmode: true)
+    }.should.raise(ArgumentError)
+
+    -> {
+      @io = IO.send(@method, @fd, "wb", textmode: false)
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, "wt", binmode: false)
+    }.should.raise(ArgumentError)
+  end
+
+  it "raises an error if passed conflicting binary/text mode two ways" do
+    -> {
+      @io = IO.send(@method, @fd, "wb", binmode: false)
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, "wt", textmode: false)
+    }.should.raise(ArgumentError)
+
+    -> {
+      @io = IO.send(@method, @fd, "wb", textmode: true)
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, "wt", binmode: true)
+    }.should.raise(ArgumentError)
+  end
+
+  it "raises an error when trying to set both binmode and textmode" do
+    -> {
+      @io = IO.send(@method, @fd, "w", textmode: true, binmode: true)
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, File::Constants::WRONLY, textmode: true, binmode: true)
+    }.should.raise(ArgumentError)
+  end
+
+  it "raises ArgumentError if not passed a hash or nil for options" do
+    -> {
+      @io = IO.send(@method, @fd, 'w', false)
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, false, false)
+    }.should.raise(ArgumentError)
+    -> {
+      @io = IO.send(@method, @fd, nil, false)
+    }.should.raise(ArgumentError)
+  end
+
+  it "raises ArgumentError if passed a hash for mode and nil for options" do
+    -> {
+      @io = IO.send(@method, @fd, {mode: 'w'}, nil)
+    }.should.raise(ArgumentError)
+  end
+end