191 lines
4.3 KiB
Ruby
191 lines
4.3 KiB
Ruby
# encoding: binary
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require './test/test_helper'
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class ByteBufferTest < Test::Unit::TestCase
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include BSON
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def setup
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@buf = ByteBuffer.new
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end
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def test_initial_state
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assert_equal 0, @buf.position
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assert_equal [], @buf.to_a
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assert_equal "", @buf.to_s
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assert_equal 0, @buf.length
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end
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def test_nil_get_returns_one_byte
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@buf.put_array([1, 2, 3, 4])
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@buf.rewind
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assert_equal 1, @buf.get
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end
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def test_one_get_returns_array_length_one
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@buf.put_array([1, 2, 3, 4])
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@buf.rewind
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assert_equal [1], @buf.get(1)
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end
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def test_zero_get_returns_empty_array
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@buf.put_array([1, 2, 3, 4])
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@buf.rewind
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assert_equal [], @buf.get(0)
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end
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def test_length
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@buf.put_int 3
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assert_equal 4, @buf.length
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end
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def test_default_order
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assert_equal :little_endian, @buf.order
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end
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def test_long_length
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@buf.put_long 1027
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assert_equal 8, @buf.length
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end
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def test_get_long
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@buf.put_long 1027
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@buf.rewind
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assert_equal 1027, @buf.get_long
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end
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def test_get_double
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@buf.put_double 41.2
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@buf.rewind
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assert_equal 41.2, @buf.get_double
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end
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if defined?(Encoding)
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def test_serialize_cstr_converts_encoding_to_utf8
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theta = "hello \xC8".force_encoding("ISO-8859-7")
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ByteBuffer.serialize_cstr(@buf, theta)
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assert_equal "hello \xCE\x98\0", @buf.to_s
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assert_equal Encoding.find('binary'), @buf.to_s.encoding
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end
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def test_serialize_cstr_validates_data_as_utf8
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assert_raises(Encoding::UndefinedConversionError) do
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ByteBuffer.serialize_cstr(@buf, "hello \xFF")
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end
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end
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else
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def test_serialize_cstr_forces_encoding_to_utf8
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# Unicode snowman (\u2603)
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ByteBuffer.serialize_cstr(@buf, "hello \342\230\203")
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assert_equal "hello \342\230\203\0", @buf.to_s
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end
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def test_serialize_cstr_validates_data_as_utf8
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assert_raises(BSON::InvalidStringEncoding) do
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ByteBuffer.serialize_cstr(@buf, "hello \xFF")
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end
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end
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end
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def test_put_negative_byte
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@buf.put(-1)
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@buf.rewind
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assert_equal 255, @buf.get
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assert_equal "\xFF", @buf.to_s
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end
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def test_put_with_offset
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@buf.put(1)
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@buf.put(2, 0)
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@buf.put(3, 3)
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assert_equal "\x02\x00\x00\x03", @buf.to_s
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end
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def test_put_array_with_offset
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@buf.put(1)
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@buf.put_array([2, 3], 0)
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@buf.put_array([4, 5], 4)
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assert_equal "\x02\x03\x00\x00\x04\x05", @buf.to_s
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end
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def test_put_int_with_offset
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@buf.put(1)
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@buf.put_int(2, 0)
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@buf.put_int(3, 5)
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assert_equal "\x02\x00\x00\x00\x00\x03\x00\x00\x00", @buf.to_s
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end
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def test_put_long_with_offset
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@buf.put(1)
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@buf.put_long(2, 0)
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@buf.put_long(3, 9)
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assert_equal(
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"\x02\x00\x00\x00\x00\x00\x00\x00" +
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"\x00" +
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"\x03\x00\x00\x00\x00\x00\x00\x00",
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@buf.to_s)
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end
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def test_put_binary
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@buf.put(1)
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@buf.put_binary("\x02\x03", 0)
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@buf.put_binary("\x04\x05", 4)
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assert_equal "\x02\x03\x00\x00\x04\x05", @buf.to_s
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end
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def test_rewrite
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@buf.put_int(0)
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@buf.rewind
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@buf.put_int(1027)
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assert_equal 4, @buf.length
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@buf.rewind
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assert_equal 1027, @buf.get_int
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assert_equal 4, @buf.position
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end
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def test_prepend_byte_buffer
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@buf.put_int(4)
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new_buf = ByteBuffer.new([5, 0, 0, 0])
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@buf.prepend!(new_buf)
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assert_equal [5, 0, 0, 0, 4, 0, 0, 0], @buf.to_a
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end
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def test_append_byte_buffer
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@buf.put_int(4)
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new_buf = ByteBuffer.new([5, 0, 0, 0])
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@buf.append!(new_buf)
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assert_equal [4, 0, 0, 0, 5, 0, 0, 0], @buf.to_a
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end
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def test_array_as_initial_input
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@buf = ByteBuffer.new([5, 0, 0, 0])
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assert_equal 4, @buf.size
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assert_equal "\x05\x00\x00\x00", @buf.to_s
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assert_equal [5, 0, 0, 0], @buf.to_a
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@buf.put_int(32)
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@buf.rewind
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assert_equal 5, @buf.get_int
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assert_equal 32, @buf.get_int
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end
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def test_binary_string_as_initial_input
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str = "abcd"
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str.force_encoding('binary') if str.respond_to?(:force_encoding)
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@buf = ByteBuffer.new(str)
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assert_equal "abcd", @buf.to_s
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assert_equal [97, 98, 99, 100], @buf.to_a
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@buf.put_int(0)
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assert_equal [97, 98, 99, 100, 0, 0, 0, 0], @buf.to_a
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end
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def test_more
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assert !@buf.more?
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@buf.put_int(5)
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assert !@buf.more?
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@buf.rewind
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assert @buf.more?
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@buf.get_int
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assert !@buf.more?
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end
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end
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