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require_relative '../../spec_helper'
require 'tempfile'
describe "Tempfile.create" do
after :each do
if @tempfile
@tempfile.close
File.unlink(@tempfile.path) if File.file?(@tempfile.path)
end
end
it "returns a new, open regular File instance placed in tmpdir" do
@tempfile = Tempfile.create
# Unlike Tempfile.open this returns a true File,
# but `.should be_an_instance_of(File)` would be true either way.
@tempfile.instance_of?(File).should be_true
@tempfile.should_not.closed?
File.file?(@tempfile.path).should be_true
@tempfile.path.should.start_with?(Dir.tmpdir)
@tempfile.path.should_not == "#{Dir.tmpdir}/"
end
it "returns file in w+ mode" do
@tempfile = Tempfile.create
@tempfile << "Test!\nMore test!"
@tempfile.rewind
@tempfile.read.should == "Test!\nMore test!"
# Not "a+" mode, which would write at the end of the file.
@tempfile.rewind
@tempfile.print "Trust"
@tempfile.rewind
@tempfile.read.should == "Trust\nMore test!"
end
platform_is_not :windows do
it "returns a private, readable and writable file" do
@tempfile = Tempfile.create
stat = @tempfile.stat
stat.should.readable?
stat.should.writable?
stat.should_not.executable?
stat.should_not.world_readable?
stat.should_not.world_writable?
end
end
platform_is :windows do
it "returns a public, readable and writable file" do
@tempfile = Tempfile.create
stat = @tempfile.stat
stat.should.readable?
stat.should.writable?
stat.should_not.executable?
stat.should.world_readable?
stat.should.world_writable?
end
end
context "when called with a block" do
it "returns the value of the block" do
value = Tempfile.create do |tempfile|
tempfile << "Test!"
"return"
end
value.should == "return"
end
it "closes and unlinks file after block execution" do
Tempfile.create do |tempfile|
@tempfile = tempfile
@tempfile.should_not.closed?
File.exist?(@tempfile.path).should be_true
end
@tempfile.should.closed?
File.exist?(@tempfile.path).should be_false
end
end
context "when called with a single positional argument" do
it "uses a String as a prefix for the filename" do
@tempfile = Tempfile.create("create_spec")
@tempfile.path.should.start_with?("#{Dir.tmpdir}/create_spec")
@tempfile.path.should_not == "#{Dir.tmpdir}/create_spec"
end
it "uses an array of one String as a prefix for the filename" do
@tempfile = Tempfile.create(["create_spec"])
@tempfile.path.should.start_with?("#{Dir.tmpdir}/create_spec")
@tempfile.path.should_not == "#{Dir.tmpdir}/create_spec"
end
it "uses an array of two Strings as a prefix and suffix for the filename" do
@tempfile = Tempfile.create(["create_spec", ".temp"])
@tempfile.path.should.start_with?("#{Dir.tmpdir}/create_spec")
@tempfile.path.should.end_with?(".temp")
end
it "ignores excessive array elements after the first two" do
@tempfile = Tempfile.create(["create_spec", ".temp", :".txt"])
@tempfile.path.should.start_with?("#{Dir.tmpdir}/create_spec")
@tempfile.path.should.end_with?(".temp")
end
it "raises ArgumentError if passed something else than a String or an array of Strings" do
-> { Tempfile.create(:create_spec) }.should raise_error(ArgumentError, "unexpected prefix: :create_spec")
-> { Tempfile.create([:create_spec]) }.should raise_error(ArgumentError, "unexpected prefix: :create_spec")
-> { Tempfile.create(["create_spec", :temp]) }.should raise_error(ArgumentError, "unexpected suffix: :temp")
end
end
context "when called with a second positional argument" do
it "uses it as a directory for the tempfile" do
@tempfile = Tempfile.create("create_spec", "./")
@tempfile.path.should.start_with?("./create_spec")
end
it "raises TypeError if argument can not be converted to a String" do
-> { Tempfile.create("create_spec", :temp) }.should raise_error(TypeError, "no implicit conversion of Symbol into String")
end
end
context "when called with a mode option" do
it "ORs it with the default mode, forcing it to be readable and writable" do
@tempfile = Tempfile.create(mode: File::RDONLY)
@tempfile.puts "test"
@tempfile.rewind
@tempfile.read.should == "test\n"
end
it "raises NoMethodError if passed a String mode" do
-> { Tempfile.create(mode: "wb") }.should raise_error(NoMethodError, /undefined method ['`]|' for .+String/)
end
end
ruby_version_is "3.4" do
context "when called with anonymous: true" do
it "returns an already unlinked File without a proper path" do
@tempfile = Tempfile.create(anonymous: true)
@tempfile.should_not.closed?
@tempfile.path.should == "#{Dir.tmpdir}/"
File.file?(@tempfile.path).should be_false
end
it "unlinks file before calling the block" do
Tempfile.create(anonymous: true) do |tempfile|
@tempfile = tempfile
@tempfile.should_not.closed?
@tempfile.path.should == "#{Dir.tmpdir}/"
File.file?(@tempfile.path).should be_false
end
@tempfile.should.closed?
end
end
context "when called with anonymous: false" do
it "returns a usual File with a path" do
@tempfile = Tempfile.create(anonymous: false)
@tempfile.should_not.closed?
@tempfile.path.should.start_with?(Dir.tmpdir)
File.file?(@tempfile.path).should be_true
end
end
end
context "when called with other options" do
it "passes them along to File.open" do
@tempfile = Tempfile.create(encoding: "IBM037:IBM037", binmode: true)
@tempfile.external_encoding.should == Encoding.find("IBM037")
@tempfile.binmode?.should be_true
end
end
end
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