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require_relative '../../spec_helper'
require 'yaml'
describe "YAML.dump" do
before :each do
@test_file = tmp("yaml_test_file")
end
after :each do
rm_r @test_file
end
it "converts an object to YAML and write result to io when io provided" do
File.open(@test_file, 'w' ) do |io|
YAML.dump( ['badger', 'elephant', 'tiger'], io )
end
YAML.load_file(@test_file).should == ['badger', 'elephant', 'tiger']
end
it "returns a string containing dumped YAML when no io provided" do
YAML.dump( :locked ).should match_yaml("--- :locked\n")
end
it "returns the same string that #to_yaml on objects" do
["a", "b", "c"].to_yaml.should == YAML.dump(["a", "b", "c"])
end
it "dumps strings into YAML strings" do
YAML.dump("str").should match_yaml("--- str\n")
end
it "dumps hashes into YAML key-values" do
YAML.dump({ "a" => "b" }).should match_yaml("--- \na: b\n")
end
it "dumps Arrays into YAML collection" do
YAML.dump(["a", "b", "c"]).should match_yaml("--- \n- a\n- b\n- c\n")
end
it "dumps an OpenStruct" do
require "ostruct"
os = OpenStruct.new("age" => 20, "name" => "John")
yaml_dump = YAML.dump(os)
[
"--- !ruby/object:OpenStruct\nage: 20\nname: John\n",
"--- !ruby/object:OpenStruct\ntable:\n :age: 20\n :name: John\n",
].should.include?(yaml_dump)
end
it "dumps a File without any state" do
file = File.new(__FILE__)
begin
YAML.dump(file).should match_yaml("--- !ruby/object:File {}\n")
ensure
file.close
end
end
end
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