require_relative '../../spec_helper' require 'tempfile' describe "Tempfile#open" do before :each do @tempfile = Tempfile.new("specs") @tempfile.puts("Test!") end after :each do @tempfile.close! end it "reopens self" do @tempfile.close @tempfile.open @tempfile.closed?.should be_false end it "reopens self in read and write mode and does not truncate" do @tempfile.open @tempfile.puts("Another Test!") @tempfile.open @tempfile.readline.should == "Another Test!\n" end end describe "Tempfile.open" do after :each do @tempfile.close! if @tempfile end it "returns a new, open Tempfile instance" do @tempfile = Tempfile.open("specs") # Delegation messes up .should be_an_instance_of(Tempfile) @tempfile.instance_of?(Tempfile).should be_true end it "is passed an array [base, suffix] as first argument" do Tempfile.open(["specs", ".tt"]) { |tempfile| @tempfile = tempfile } @tempfile.path.should =~ /specs.*\.tt$/ end it "passes the third argument (options) to open" do Tempfile.open("specs", Dir.tmpdir, encoding: "IBM037:IBM037", binmode: true) do |tempfile| @tempfile = tempfile tempfile.external_encoding.should == Encoding.find("IBM037") tempfile.binmode?.should be_true end end it "uses a blank string for basename when passed no arguments" do Tempfile.open() do |tempfile| @tempfile = tempfile tempfile.closed?.should be_false end @tempfile.should_not == nil end end describe "Tempfile.open when passed a block" do before :each do ScratchPad.clear end after :each do # Tempfile.open with block does not unlink @tempfile.close! if @tempfile end it "yields a new, open Tempfile instance to the block" do Tempfile.open("specs") do |tempfile| @tempfile = tempfile ScratchPad.record :yielded # Delegation messes up .should be_an_instance_of(Tempfile) tempfile.instance_of?(Tempfile).should be_true tempfile.closed?.should be_false end ScratchPad.recorded.should == :yielded end it "returns the value of the block" do value = Tempfile.open("specs") do |tempfile| @tempfile = tempfile "return" end value.should == "return" end it "closes the yielded Tempfile after the block" do Tempfile.open("specs") { |tempfile| @tempfile = tempfile } @tempfile.closed?.should be_true end end