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ruby--ruby/spec/rubyspec/shared/file/zero.rb
eregon 95e8c48dd3 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
2017-05-07 12:04:49 +00:00

76 lines
2 KiB
Ruby

describe :file_zero, shared: true do
before :each do
@zero_file = tmp("test.txt")
@nonzero_file = tmp("test2.txt")
@dir = tmp("dir")
Dir.mkdir @dir
touch @zero_file
touch(@nonzero_file) { |f| f.puts "hello" }
end
after :each do
rm_r @zero_file, @nonzero_file
rm_r @dir
end
it "returns true if the file is empty" do
@object.send(@method, @zero_file).should == true
end
it "returns false if the file is not empty" do
@object.send(@method, @nonzero_file).should == false
end
it "accepts an object that has a #to_path method" do
@object.send(@method, mock_to_path(@zero_file)).should == true
end
platform_is :windows do
it "returns true for NUL" do
@object.send(@method, 'NUL').should == true
@object.send(@method, 'nul').should == true
end
end
platform_is_not :windows do
it "returns true for /dev/null" do
@object.send(@method, File.realpath('/dev/null')).should == true
end
end
it "raises an ArgumentError if not passed one argument" do
lambda { File.zero? }.should raise_error(ArgumentError)
end
it "raises a TypeError if not passed a String type" do
lambda { @object.send(@method, nil) }.should raise_error(TypeError)
lambda { @object.send(@method, true) }.should raise_error(TypeError)
lambda { @object.send(@method, false) }.should raise_error(TypeError)
end
it "returns true inside a block opening a file if it is empty" do
File.open(@zero_file,'w') do
@object.send(@method, @zero_file).should == true
end
end
platform_is_not :windows do
it "returns false for a directory" do
@object.send(@method, @dir).should == false
end
end
platform_is :windows do
# see http://redmine.ruby-lang.org/issues/show/449 for background
it "returns true for a directory" do
@object.send(@method, @dir).should == true
end
end
end
describe :file_zero_missing, shared: true do
it "returns false if the file does not exist" do
@object.send(@method, 'fake_file').should == false
end
end