Class GzipTest < ActiveSupport::TestCase

# File activesupport/test/gzip_test.rb, line 5
def test_compress_should_decompress_to_the_same_value
  assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World"))
  assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", Zlib::NO_COMPRESSION))
  assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", Zlib::BEST_SPEED))
  assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", Zlib::BEST_COMPRESSION))
  assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", nil, Zlib::FILTERED))
  assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", nil, Zlib::HUFFMAN_ONLY))
  assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", nil, nil))
end

# File activesupport/test/gzip_test.rb, line 15
def test_compress_should_return_a_binary_string
  compressed = ActiveSupport::Gzip.compress('')

  assert_equal Encoding.find('binary'), compressed.encoding
  assert !compressed.blank?, "a compressed blank string should not be blank"
end

# File activesupport/test/gzip_test.rb, line 22
def test_compress_should_return_gzipped_string_by_compression_level
  source_string = "Hello World"*100

  gzipped_by_speed = ActiveSupport::Gzip.compress(source_string, Zlib::BEST_SPEED)
  assert_equal 1, Zlib::GzipReader.new(StringIO.new(gzipped_by_speed)).level

  gzipped_by_best_compression = ActiveSupport::Gzip.compress(source_string, Zlib::BEST_COMPRESSION)
  assert_equal 9, Zlib::GzipReader.new(StringIO.new(gzipped_by_best_compression)).level

  assert_equal true, (gzipped_by_best_compression.bytesize < gzipped_by_speed.bytesize)
end