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synced 2022-11-09 12:12:34 -05:00
45 lines
2.2 KiB
Ruby
45 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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require "abstract_unit"
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require "active_support/core_ext/object/blank"
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class GzipTest < ActiveSupport::TestCase
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def test_compress_should_decompress_to_the_same_value
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assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World"))
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assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", Zlib::NO_COMPRESSION))
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assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", Zlib::BEST_SPEED))
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assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", Zlib::BEST_COMPRESSION))
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assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", nil, Zlib::FILTERED))
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assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", nil, Zlib::HUFFMAN_ONLY))
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assert_equal "Hello World", ActiveSupport::Gzip.decompress(ActiveSupport::Gzip.compress("Hello World", nil, nil))
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end
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def test_compress_should_return_a_binary_string
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compressed = ActiveSupport::Gzip.compress("")
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assert_equal Encoding.find("binary"), compressed.encoding
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assert_not compressed.blank?, "a compressed blank string should not be blank"
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end
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def test_compress_should_return_gzipped_string_by_compression_level
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source_string = "Hello World" * 100
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gzipped_by_speed = ActiveSupport::Gzip.compress(source_string, Zlib::BEST_SPEED)
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assert_equal 1, Zlib::GzipReader.new(StringIO.new(gzipped_by_speed)).level
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gzipped_by_best_compression = ActiveSupport::Gzip.compress(source_string, Zlib::BEST_COMPRESSION)
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assert_equal 9, Zlib::GzipReader.new(StringIO.new(gzipped_by_best_compression)).level
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assert_equal true, (gzipped_by_best_compression.bytesize < gzipped_by_speed.bytesize)
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end
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def test_decompress_checks_crc
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compressed = ActiveSupport::Gzip.compress("Hello World")
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first_crc_byte_index = compressed.bytesize - 8
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compressed.setbyte(first_crc_byte_index, compressed.getbyte(first_crc_byte_index) ^ 0xff)
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assert_raises(Zlib::GzipFile::CRCError) do
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ActiveSupport::Gzip.decompress(compressed)
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end
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end
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end
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