From a3736e97a6ca517c2cd7d3d93a8f2ef86e39e5b5 Mon Sep 17 00:00:00 2001
From: eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 7 May 2017 12:04:49 +0000
Subject: Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 spec/rubyspec/core/io/shared/write.rb | 72 +++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 spec/rubyspec/core/io/shared/write.rb

(limited to 'spec/rubyspec/core/io/shared/write.rb')

diff --git a/spec/rubyspec/core/io/shared/write.rb b/spec/rubyspec/core/io/shared/write.rb
new file mode 100644
index 0000000000..fd4b0af30e
--- /dev/null
+++ b/spec/rubyspec/core/io/shared/write.rb
@@ -0,0 +1,72 @@
+# encoding: utf-8
+require File.expand_path('../../fixtures/classes', __FILE__)
+
+describe :io_write, shared: true do
+  before :each do
+    @filename = tmp("IO_syswrite_file") + $$.to_s
+    File.open(@filename, "w") do |file|
+      file.send(@method, "012345678901234567890123456789")
+    end
+    @file = File.open(@filename, "r+")
+    @readonly_file = File.open(@filename)
+  end
+
+  after :each do
+    @readonly_file.close if @readonly_file
+    @file.close if @file
+    rm_r @filename
+  end
+
+  it "coerces the argument to a string using to_s" do
+    (obj = mock('test')).should_receive(:to_s).and_return('a string')
+    @file.send(@method, obj)
+  end
+
+  it "checks if the file is writable if writing more than zero bytes" do
+    lambda { @readonly_file.send(@method, "abcde") }.should raise_error(IOError)
+  end
+
+  it "returns the number of bytes written" do
+    written = @file.send(@method, "abcde")
+    written.should == 5
+  end
+
+  it "invokes to_s on non-String argument" do
+    data = "abcdefgh9876"
+    (obj = mock(data)).should_receive(:to_s).and_return(data)
+    @file.send(@method, obj)
+    @file.seek(0)
+    @file.read(data.size).should == data
+  end
+
+  it "writes all of the string's bytes without buffering if mode is sync" do
+    @file.sync = true
+    written = @file.send(@method, "abcde")
+    written.should == 5
+    File.open(@filename) do |file|
+      file.read(10).should == "abcde56789"
+    end
+  end
+
+  it "does not warn if called after IO#read" do
+    @file.read(5)
+    lambda { @file.send(@method, "fghij") }.should_not complain
+  end
+
+  it "writes to the current position after IO#read" do
+    @file.read(5)
+    @file.send(@method, "abcd")
+    @file.rewind
+    @file.read.should == "01234abcd901234567890123456789"
+  end
+
+  it "advances the file position by the count of given bytes" do
+    @file.send(@method, "abcde")
+    @file.read(10).should == "5678901234"
+  end
+
+  it "raises IOError on closed stream" do
+    lambda { IOSpecs.closed_io.send(@method, "hello") }.should raise_error(IOError)
+  end
+
+end
-- 
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