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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../shared/open', __FILE__)
describe "File.new" do
before :each do
@file = tmp('test.txt')
@fh = nil
@flags = File::CREAT | File::TRUNC | File::WRONLY
touch @file
end
after :each do
@fh.close if @fh
rm_r @file
end
it "returns a new File with mode string" do
@fh = File.new(@file, 'w')
@fh.should be_kind_of(File)
File.exist?(@file).should == true
end
it "returns a new File with mode num" do
@fh = File.new(@file, @flags)
@fh.should be_kind_of(File)
File.exist?(@file).should == true
end
it "returns a new File with modus num and permissions" do
rm_r @file
File.umask(0011)
@fh = File.new(@file, @flags, 0755)
@fh.should be_kind_of(File)
platform_is_not :windows do
File.stat(@file).mode.to_s(8).should == "100744"
end
File.exist?(@file).should == true
end
it "creates the file and returns writable descriptor when called with 'w' mode and r-o permissions" do
# it should be possible to write to such a file via returned descriptior,
# even though the file permissions are r-r-r.
rm_r @file
begin
f = File.new(@file, "w", 0444)
lambda { f.puts("test") }.should_not raise_error(IOError)
ensure
f.close
end
File.exist?(@file).should == true
File.read(@file).should == "test\n"
end
platform_is_not :windows do
it "opens the existing file, does not change permissions even when they are specified" do
File.chmod(0644, @file) # r-w perms
orig_perms = File.stat(@file).mode & 0777
begin
f = File.new(@file, "w", 0444) # r-o perms, but they should be ignored
f.puts("test")
ensure
f.close
end
perms = File.stat(@file).mode & 0777
perms.should == orig_perms
# it should be still possible to read from the file
File.read(@file).should == "test\n"
end
end
it "returns a new File with modus fd" do
@fh = File.new(@file)
fh_copy = File.new(@fh.fileno)
fh_copy.autoclose = false
fh_copy.should be_kind_of(File)
File.exist?(@file).should == true
end
it "creates a new file when use File::EXCL mode" do
@fh = File.new(@file, File::EXCL)
@fh.should be_kind_of(File)
File.exist?(@file).should == true
end
it "raises an Errorno::EEXIST if the file exists when create a new file with File::CREAT|File::EXCL" do
lambda { @fh = File.new(@file, File::CREAT|File::EXCL) }.should raise_error(Errno::EEXIST)
end
it "creates a new file when use File::WRONLY|File::APPEND mode" do
@fh = File.new(@file, File::WRONLY|File::APPEND)
@fh.should be_kind_of(File)
File.exist?(@file).should == true
end
it "returns a new File when use File::APPEND mode" do
@fh = File.new(@file, File::APPEND)
@fh.should be_kind_of(File)
File.exist?(@file).should == true
end
it "returns a new File when use File::RDONLY|File::APPEND mode" do
@fh = File.new(@file, File::RDONLY|File::APPEND)
@fh.should be_kind_of(File)
File.exist?(@file).should == true
end
it "returns a new File when use File::RDONLY|File::WRONLY mode" do
@fh = File.new(@file, File::RDONLY|File::WRONLY)
@fh.should be_kind_of(File)
File.exist?(@file).should == true
end
it "creates a new file when use File::WRONLY|File::TRUNC mode" do
@fh = File.new(@file, File::WRONLY|File::TRUNC)
@fh.should be_kind_of(File)
File.exist?(@file).should == true
end
it "coerces filename using to_str" do
name = mock("file")
name.should_receive(:to_str).and_return(@file)
@fh = File.new(name, "w")
File.exist?(@file).should == true
end
it "coerces filename using #to_path" do
name = mock("file")
name.should_receive(:to_path).and_return(@file)
@fh = File.new(name, "w")
File.exist?(@file).should == true
end
it "raises a TypeError if the first parameter can't be coerced to a string" do
lambda { File.new(true) }.should raise_error(TypeError)
lambda { File.new(false) }.should raise_error(TypeError)
end
it "raises a TypeError if the first parameter is nil" do
lambda { File.new(nil) }.should raise_error(TypeError)
end
it "raises an Errno::EBADF if the first parameter is an invalid file descriptor" do
lambda { File.new(-1) }.should raise_error(Errno::EBADF)
end
platform_is_not :windows do
it "can't alter mode or permissions when opening a file" do
@fh = File.new(@file)
lambda {
f = File.new(@fh.fileno, @flags)
f.autoclose = false
}.should raise_error(Errno::EINVAL)
end
end
platform_is_not :windows do
it_behaves_like :open_directory, :new
end
end
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