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ruby--ruby/spec/ruby/library/tempfile/open_spec.rb
2019-05-28 22:41:48 +02:00

97 lines
2.4 KiB
Ruby

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