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

3 files changed, 111 insertions, 0 deletions

diff --git a/spec/rubyspec/library/logger/device/close_spec.rb b/spec/rubyspec/library/logger/device/close_spec.rb
new file mode 100644
index 0000000000..777b20baf0
--- /dev/null
+++ b/spec/rubyspec/library/logger/device/close_spec.rb
@@ -0,0 +1,22 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require File.expand_path('../../fixtures/common', __FILE__)
+
+describe "Logger::LogDevice#close" do
+  before :each do
+    @file_path = tmp("test_log.log")
+    @log_file = File.open(@file_path, "w+")
+
+    # Avoid testing this with STDERR, we don't want to be closing that.
+    @device = Logger::LogDevice.new(@log_file)
+  end
+
+  after :each do
+    @log_file.close unless @log_file.closed?
+    rm_r @file_path
+  end
+
+  it "closes the LogDevice's stream" do
+    @device.close
+    lambda { @device.write("Test") }.should complain(/\Alog writing failed\./)
+  end
+end
diff --git a/spec/rubyspec/library/logger/device/new_spec.rb b/spec/rubyspec/library/logger/device/new_spec.rb
new file mode 100644
index 0000000000..0e08b743ed
--- /dev/null
+++ b/spec/rubyspec/library/logger/device/new_spec.rb
@@ -0,0 +1,47 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require File.expand_path('../../fixtures/common', __FILE__)
+
+describe "Logger::LogDevice#new" do
+  before :each do
+    @file_path = tmp("test_log.log")
+    @log_file = File.open(@file_path, "w+")
+  end
+
+  after :each do
+    @log_file.close unless @log_file.closed?
+    rm_r @file_path
+  end
+
+  it "creates a new log device" do
+    l = Logger::LogDevice.new(@log_file)
+    l.dev.should be_kind_of(File)
+  end
+
+  it "receives an IO object to log there as first argument" do
+    @log_file.should be_kind_of(IO)
+    l = Logger::LogDevice.new(@log_file)
+    l.write("foo")
+    @log_file.rewind
+    @log_file.readlines.first.should == "foo"
+  end
+
+  it "creates a File if the IO object does not exist" do
+    path = tmp("test_logger_file")
+    l = Logger::LogDevice.new(path)
+    l.write("Test message")
+    l.close
+
+    File.exist?(path).should be_true
+    File.open(path) do |f|
+      f.readlines.should_not be_empty
+    end
+
+    rm_r path
+  end
+
+  it "receives options via a hash as second argument" do
+    lambda { Logger::LogDevice.new(STDERR,
+                                   { shift_age: 8, shift_size: 10
+                                   })}.should_not raise_error
+  end
+end
diff --git a/spec/rubyspec/library/logger/device/write_spec.rb b/spec/rubyspec/library/logger/device/write_spec.rb
new file mode 100644
index 0000000000..e3ddd61b1f
--- /dev/null
+++ b/spec/rubyspec/library/logger/device/write_spec.rb
@@ -0,0 +1,42 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require File.expand_path('../../fixtures/common', __FILE__)
+
+describe "Logger::LogDevice#write" do
+  before  :each do
+    @file_path = tmp("test_log.log")
+    @log_file = File.open(@file_path, "w+")
+    # Avoid testing this with STDERR, we don't want to be closing that.
+    @device = Logger::LogDevice.new(@log_file)
+  end
+
+  after :each do
+    @log_file.close unless @log_file.closed?
+    rm_r @file_path
+  end
+
+  it "writes a message to the device" do
+    @device.write "This is a test message"
+    @log_file.rewind
+    @log_file.readlines.first.should == "This is a test message"
+  end
+
+  it "can create a file and writes empty message" do
+    path = tmp("you_should_not_see_me")
+    logdevice = Logger::LogDevice.new(path)
+    logdevice.write("")
+    logdevice.close
+
+    File.open(path) do |f|
+      messages = f.readlines
+      messages.size.should == 1
+      messages.first.should =~ /#.*/    # only a comment
+    end
+
+    rm_r path
+  end
+
+  it "fails if the device is already closed" do
+    @device.close
+    lambda { @device.write "foo" }.should complain(/\Alog writing failed\./)
+  end
+end