74 lines
1.6 KiB
Ruby
74 lines
1.6 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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require 'timeout'
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require 'fcntl'
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class TestReadPartial < Test::Unit::TestCase
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def make_pipe
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r, w = IO.pipe
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r.binmode
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w.binmode
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begin
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yield r, w
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ensure
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r.close unless r.closed?
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w.close unless w.closed?
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end
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end
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def pipe
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make_pipe {|r, w|
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yield r, w
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}
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return unless defined?(Fcntl::F_SETFL)
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return unless defined?(Fcntl::F_GETFL)
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return unless defined?(Fcntl::O_NONBLOCK)
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make_pipe {|r, w|
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r.fcntl(Fcntl::F_SETFL, r.fcntl(Fcntl::F_GETFL) | Fcntl::O_NONBLOCK)
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yield r, w
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}
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end
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def test_length_zero
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pipe {|r, w|
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assert_equal('', r.readpartial(0))
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}
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end
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def test_closed_pipe
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pipe {|r, w|
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w << 'abc'
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w.close
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assert_equal('ab', r.readpartial(2))
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assert_equal('c', r.readpartial(2))
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assert_raise(EOFError) { r.readpartial(2) }
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assert_raise(EOFError) { r.readpartial(2) }
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}
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end
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def test_open_pipe
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pipe {|r, w|
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w << 'abc'
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assert_equal('ab', r.readpartial(2))
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assert_equal('c', r.readpartial(2))
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assert_raise(Timeout::Error) {
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Timeout.timeout(0.1) { r.readpartial(2) }
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}
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}
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end
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def test_with_stdio
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pipe {|r, w|
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w << "abc\ndef\n"
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assert_equal("abc\n", r.gets)
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w << "ghi\n"
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assert_equal("de", r.readpartial(2))
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assert_equal("f\n", r.readpartial(4096))
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assert_equal("ghi\n", r.readpartial(4096))
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assert_raise(Timeout::Error) {
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Timeout.timeout(0.1) { r.readpartial(2) }
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}
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}
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end
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end
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