mogilefs-client.git  about / heads / tags
MogileFS client library for Ruby
blob 0dd920a31a931bd28f286a919312fff492bd3d4b 6622 bytes (raw)
$ git show v3.11.1:test/test_cmogstored.rb	# shows this blob on the CLI

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
 
# -*- encoding: binary -*-
require "./test/fresh"

# cmogstored allows Content-Range on PUT, unlike the original mogstored
class Test_cmogstored < Test::Unit::TestCase
  include TestFreshSetup
  alias setup setup_mogilefs
  alias teardown teardown_mogilefs

  def test_range_put_new_file
    add_host_device_domain
    client = MogileFS::MogileFS.new :hosts => @hosts, :domain => @domain

    io = client.new_file "range0", :largefile => :content_range
    assert_nil io.close
    assert_equal "", client.get_file_data("range0")

    io = client.new_file "writes", :largefile => :content_range
    %w(a b c d e).each { |x| io.write(x) }
    assert_nil io.close
    assert_equal "abcde", client.get_file_data("writes")

    io = client.new_file "puts", :largefile => :content_range
    %w(a b c d e).each { |x| io.puts(x) }
    assert ! client.exist?("puts")
    assert_nil io.close
    assert_equal "a\nb\nc\nd\ne\n", client.get_file_data("puts")
  end

  def test_garbage
    add_host_device_domain
    client = MogileFS::MogileFS.new :hosts => @hosts, :domain => @domain,
                                    :timeout => 60
    nr = 1024 * 1024 * 1024
    client.new_file('giant', :largefile => :stream,
                    :content_length => nr) do |io|
      assert_instance_of MogileFS::NewFile::Stream, io
      zero = Zero.new
      before = GC.count
      wr = IO.copy_stream(zero, io, nr)
      after = GC.count
      assert_equal nr, wr
      assert_in_delta before, after, 1
    end
  end if IO.respond_to?(:copy_stream) && defined?(Zero) &&
         GC.respond_to?(:count) && defined?(RUBY_ENGINE) &&
         RUBY_ENGINE == 'ruby' && ENV['TEST_EXPENSIVE'].to_i != 0

  def test_stream_new_file
    add_host_device_domain
    client = MogileFS::MogileFS.new :hosts => @hosts, :domain => @domain
    client.new_file("chunky", :largefile => :stream) do |io|
      assert_instance_of MogileFS::NewFile::Stream, io
      assert_equal(5, io.write("HELLO"))
      assert_nil io.md5
    end
    assert_equal "HELLO", client.get_file_data("chunky")

    io = client.new_file("puts", :largefile => :stream)
    assert_instance_of MogileFS::NewFile::Stream, io
    assert_equal io, IO.select(nil, [io])[1][0], "IO.select-able"

    assert_nil(io.puts("PUTS!"))
    assert_nil(io.puts("PUTZ"))
    assert_nil io.close
    assert_equal "PUTS!\nPUTZ\n", client.get_file_data("puts")

    io = client.new_file("putc", :largefile => :stream)
    assert_equal(0x20, io.putc(0x20))
    assert_nil io.close
    assert_equal " ", client.get_file_data("putc")

    io = client.new_file("print splat", :largefile => :stream)
    io.print(1, 2, 3)
    assert_nil io.close
    assert_equal "123", client.get_file_data("print splat")

    io = client.new_file("printf", :largefile => :stream)
    assert_nil io.printf("%x", 1638)
    assert_nil io.close
    assert_equal "666", client.get_file_data("printf")

    io = client.new_file("syswrite", :largefile => :stream)
    assert_equal 4, io.syswrite("good")
    assert_equal 7, io.syswrite("morning")
    assert_nil io.close
    assert_equal "goodmorning", client.get_file_data("syswrite")

    io = client.new_file("md5", :largefile=>:stream, :content_md5=>:trailer)
    assert_instance_of Digest::MD5, io.md5
    assert_nil io.puts("HIHI")
    assert_nil io.close
    assert_equal "HIHI\n", client.get_file_data("md5")
    assert_equal Digest::MD5.hexdigest("HIHI\n"), io.md5.hexdigest

    io = client.new_file("<<", :largefile=>:stream)
    assert_equal(io, io << ">>")
    assert_nil io.close
    assert_equal ">>", client.get_file_data("<<")
  end

  def test_stream_new_file_with_content_length
    add_host_device_domain
    client = MogileFS::MogileFS.new :hosts => @hosts, :domain => @domain
    io = client.new_file("clen", :largefile=>:stream,:content_length=>6)
    io << "HIHIHI"
    assert_nil io.close
    assert_equal "HIHIHI", client.get_file_data("clen")

    io = client.new_file("clen", :largefile=>:stream,:content_length=>1)
    io << "FAIL"
    assert_raises(MogileFS::SizeMismatchError) { io.close }
    assert_equal "HIHIHI", client.get_file_data("clen")

    io = client.new_file("md5", :largefile=>:stream,
                                :content_length=>6, :content_md5=>:trailer)
    assert_equal(io, io << "MD5MD5")
    assert_nil io.close
    assert_equal "MD5MD5", client.get_file_data("md5")
    assert_equal Digest::MD5.hexdigest("MD5MD5"), io.md5.hexdigest

    io = client.new_file("md5", :largefile=>:stream,
                                :content_length=>6, :content_md5=>:trailer)
    assert_equal(io, io << "MD5MD")
    assert_raises(MogileFS::SizeMismatchError) { io.close }
    assert_equal Digest::MD5.hexdigest("MD5MD"), io.md5.hexdigest
  end

  def test_md5_check
    add_host_device_domain
    client = MogileFS::MogileFS.new :hosts => @hosts, :domain => @domain
    node = "#@test_host:#@mogstored_http_port"
    pid = fork do
      # not modifying this hash in the same process
      MogileFS::HTTPFile::MD5_TRAILER_NODES[node] = true
      client.store_content("md5_me", nil, "HELLO WORLD")
    end
    _, status = Process.waitpid2(pid)
    assert status.success?, status.inspect
    assert_equal "HELLO WORLD", client.get_file_data("md5_me")
  end

  def setup_mogstored
    @docroot = Dir.mktmpdir(["mogfresh", "docroot"])
    Dir.mkdir("#@docroot/dev1")
    Dir.mkdir("#@docroot/dev2")
    @mogstored_mgmt = TCPServer.new(@test_host, 0)
    @mogstored_http = TCPServer.new(@test_host, 0)
    @mogstored_mgmt_port = @mogstored_mgmt.addr[1]
    @mogstored_http_port = @mogstored_http.addr[1]

    @mogstored_pid = fork do
      mgmt_fd = @mogstored_mgmt.fileno
      http_fd = @mogstored_http.fileno
      args = []
      ENV["CMOGSTORED_FD"] = "#{mgmt_fd},#{http_fd}"
      if @mogstored_mgmt.respond_to?(:close_on_exec=)
        @mogstored_mgmt.close_on_exec = @mogstored_http.close_on_exec = false
        args << { mgmt_fd => mgmt_fd, http_fd => http_fd }
      end
      $stderr.reopen('/dev/null', 'a')
      exec "cmogstored", "--httplisten=#@test_host:#@mogstored_http_port",
           "--mgmtlisten=#@test_host:#@mogstored_mgmt_port",
           "--maxconns=1000", "--docroot=#@docroot", *args
    end
  end
end if `which cmogstored`.chomp.size > 0

# The goal of this is to use a synthetic (non-IO) reader
# to trigger the read/write loop of IO.copy_stream,
# bypassing in-kernel mechanisms like sendfile for zero copy,
# so we wrap the /dev/zero IO object:
class Zero
  def initialize
    @in = File.open('/dev/zero', 'rb')
  end

  def read(len, buf)
    @in.read(len, buf)
  end
end if File.readable?('/dev/zero')

git clone https://yhbt.net/mogilefs-client.git