/
test_position_file.rb
316 lines (259 loc) · 10.2 KB
/
test_position_file.rb
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require_relative '../../helper'
require 'fluent/plugin/in_tail/position_file'
require 'fluent/plugin/in_tail'
require 'fileutils'
require 'tempfile'
class IntailPositionFileTest < Test::Unit::TestCase
setup do
@file = Tempfile.new('intail_position_file_test').binmode
end
teardown do
@file.close rescue nil
@file.unlink rescue nil
end
UNWATCHED_STR = '%016x' % Fluent::Plugin::TailInput::PositionFile::UNWATCHED_POSITION
TEST_CONTENT = <<~EOF
valid_path\t0000000000000002\t0000000000000001
inode23bit\t0000000000000000\t00000000
invalidpath100000000000000000000000000000000
unwatched\t#{UNWATCHED_STR}\t0000000000000000
EOF
TEST_CONTENT_PATHS = {
"valid_path" => Fluent::Plugin::TailInput::TargetInfo.new("valid_path", 1),
"inode23bit" => Fluent::Plugin::TailInput::TargetInfo.new("inode23bit", 0),
}
def write_data(f, content)
f.write(content)
f.seek(0)
end
def follow_inodes_block
[true, false].each do |follow_inodes|
yield follow_inodes
end
end
test '.load' do
write_data(@file, TEST_CONTENT)
Fluent::Plugin::TailInput::PositionFile.load(@file, false, TEST_CONTENT_PATHS, **{logger: $log})
@file.seek(0)
lines = @file.readlines
assert_equal 2, lines.size
assert_equal "valid_path\t0000000000000002\t0000000000000001\n", lines[0]
assert_equal "inode23bit\t0000000000000000\t0000000000000000\n", lines[1]
end
sub_test_case '#try_compact' do
test 'compact invalid and convert 32 bit inode value' do
write_data(@file, TEST_CONTENT)
Fluent::Plugin::TailInput::PositionFile.new(@file, false, **{logger: $log}).try_compact
@file.seek(0)
lines = @file.readlines
assert_equal 2, lines.size
assert_equal "valid_path\t0000000000000002\t0000000000000001\n", lines[0]
assert_equal "inode23bit\t0000000000000000\t0000000000000000\n", lines[1]
end
test 'compact data if duplicated line' do
write_data(@file, <<~EOF)
valid_path\t0000000000000002\t0000000000000001
valid_path\t0000000000000003\t0000000000000004
EOF
Fluent::Plugin::TailInput::PositionFile.new(@file, false, **{logger: $log}).try_compact
@file.seek(0)
lines = @file.readlines
assert_equal "valid_path\t0000000000000003\t0000000000000004\n", lines[0]
end
test 'does not change when the file is changed' do
write_data(@file, TEST_CONTENT)
pf = Fluent::Plugin::TailInput::PositionFile.new(@file, false, **{logger: $log})
mock.proxy(pf).fetch_compacted_entries do |r|
@file.write("unwatched\t#{UNWATCHED_STR}\t0000000000000000\n")
r
end
pf.try_compact
@file.seek(0)
lines = @file.readlines
assert_equal 5, lines.size
end
test 'update seek position of remained position entry' do
pf = Fluent::Plugin::TailInput::PositionFile.new(@file, false, **{logger: $log})
target_info1 = Fluent::Plugin::TailInput::TargetInfo.new('path1', -1)
target_info2 = Fluent::Plugin::TailInput::TargetInfo.new('path2', -1)
target_info3 = Fluent::Plugin::TailInput::TargetInfo.new('path3', -1)
pf[target_info1]
pf[target_info2]
pf[target_info3]
target_info1_2 = Fluent::Plugin::TailInput::TargetInfo.new('path1', 1234)
pf.unwatch(target_info1_2)
pf.try_compact
@file.seek(0)
lines = @file.readlines
assert_equal "path2\t0000000000000000\t0000000000000000\n", lines[0]
assert_equal "path3\t0000000000000000\t0000000000000000\n", lines[1]
assert_equal 2, lines.size
target_info2_2 = Fluent::Plugin::TailInput::TargetInfo.new('path2', 1235)
target_info3_2 = Fluent::Plugin::TailInput::TargetInfo.new('path3', 1236)
pf.unwatch(target_info2_2)
pf.unwatch(target_info3_2)
@file.seek(0)
lines = @file.readlines
assert_equal "path2\t#{UNWATCHED_STR}\t0000000000000000\n", lines[0]
assert_equal "path3\t#{UNWATCHED_STR}\t0000000000000000\n", lines[1]
assert_equal 2, lines.size
end
test 'should ignore initial existing files on follow_inode' do
write_data(@file, TEST_CONTENT)
pos_file = Fluent::Plugin::TailInput::PositionFile.load(@file, true, TEST_CONTENT_PATHS, **{logger: $log})
@file.seek(0)
assert_equal([], @file.readlines)
@file.seek(0)
write_data(@file, TEST_CONTENT)
pos_file.try_compact
@file.seek(0)
assert_equal([
"valid_path\t0000000000000002\t0000000000000001\n",
"inode23bit\t0000000000000000\t0000000000000000\n",
],
@file.readlines)
end
end
sub_test_case '#load' do
test 'compact invalid and convert 32 bit inode value' do
write_data(@file, TEST_CONTENT)
Fluent::Plugin::TailInput::PositionFile.load(@file, false, TEST_CONTENT_PATHS, **{logger: $log})
@file.seek(0)
lines = @file.readlines
assert_equal 2, lines.size
assert_equal "valid_path\t0000000000000002\t0000000000000001\n", lines[0]
assert_equal "inode23bit\t0000000000000000\t0000000000000000\n", lines[1]
end
test 'compact deleted paths' do
write_data(@file, TEST_CONTENT)
Fluent::Plugin::TailInput::PositionFile.load(@file, false, {}, **{logger: $log})
@file.seek(0)
lines = @file.readlines
assert_equal [], lines
end
test 'compact data if duplicated line' do
write_data(@file, <<~EOF)
valid_path\t0000000000000002\t0000000000000001
valid_path\t0000000000000003\t0000000000000004
EOF
Fluent::Plugin::TailInput::PositionFile.new(@file, false, **{logger: $log}).load
@file.seek(0)
lines = @file.readlines
assert_equal "valid_path\t0000000000000003\t0000000000000004\n", lines[0]
end
end
sub_test_case '#[]' do
test 'return entry' do
write_data(@file, TEST_CONTENT)
pf = Fluent::Plugin::TailInput::PositionFile.load(@file, false, TEST_CONTENT_PATHS, **{logger: $log})
valid_target_info = Fluent::Plugin::TailInput::TargetInfo.new('valid_path', File.stat(@file).ino)
f = pf[valid_target_info]
assert_equal Fluent::Plugin::TailInput::FilePositionEntry, f.class
assert_equal 2, f.read_pos
assert_equal 1, f.read_inode
@file.seek(0)
lines = @file.readlines
assert_equal 2, lines.size
nonexistent_target_info = Fluent::Plugin::TailInput::TargetInfo.new('nonexist_path', -1)
f = pf[nonexistent_target_info]
assert_equal Fluent::Plugin::TailInput::FilePositionEntry, f.class
assert_equal 0, f.read_pos
assert_equal 0, f.read_inode
@file.seek(0)
lines = @file.readlines
assert_equal 3, lines.size
assert_equal "nonexist_path\t0000000000000000\t0000000000000000\n", lines[2]
end
test 'does not change other value position if other entry try to write' do
write_data(@file, TEST_CONTENT)
pf = Fluent::Plugin::TailInput::PositionFile.load(@file, false, {}, logger: $log)
f = pf[Fluent::Plugin::TailInput::TargetInfo.new('nonexist_path', -1)]
assert_equal 0, f.read_inode
assert_equal 0, f.read_pos
pf[Fluent::Plugin::TailInput::TargetInfo.new('valid_path', File.stat(@file).ino)].update(1, 2)
f = pf[Fluent::Plugin::TailInput::TargetInfo.new('nonexist_path', -1)]
assert_equal 0, f.read_inode
assert_equal 0, f.read_pos
pf[Fluent::Plugin::TailInput::TargetInfo.new('nonexist_path', -1)].update(1, 2)
assert_equal 1, f.read_inode
assert_equal 2, f.read_pos
end
end
sub_test_case '#unwatch' do
test 'deletes entry by path' do
write_data(@file, TEST_CONTENT)
pf = Fluent::Plugin::TailInput::PositionFile.load(@file, false, {}, logger: $log)
inode1 = File.stat(@file).ino
target_info1 = Fluent::Plugin::TailInput::TargetInfo.new('valid_path', inode1)
p1 = pf[target_info1]
assert_equal Fluent::Plugin::TailInput::FilePositionEntry, p1.class
pf.unwatch(target_info1)
assert_equal p1.read_pos, Fluent::Plugin::TailInput::PositionFile::UNWATCHED_POSITION
inode2 = File.stat(@file).ino
target_info2 = Fluent::Plugin::TailInput::TargetInfo.new('valid_path', inode2)
p2 = pf[target_info2]
assert_equal Fluent::Plugin::TailInput::FilePositionEntry, p2.class
assert_not_equal p1, p2
end
end
sub_test_case 'FilePositionEntry' do
FILE_POS_CONTENT = <<~EOF
valid_path\t0000000000000002\t0000000000000001
valid_path2\t0000000000000003\t0000000000000002
EOF
def build_files(file)
r = {}
file.each_line do |line|
m = /^([^\t]+)\t([0-9a-fA-F]+)\t([0-9a-fA-F]+)/.match(line)
path = m[1]
pos = m[2].to_i(16)
ino = m[3].to_i(16)
seek = file.pos - line.bytesize + path.bytesize + 1
r[path] = Fluent::Plugin::TailInput::FilePositionEntry.new(@file, Mutex.new, seek, pos, ino)
end
r
end
test '#update' do
write_data(@file, FILE_POS_CONTENT)
fs = build_files(@file)
f = fs['valid_path']
f.update(11, 10)
@file.seek(0)
lines = @file.readlines
assert_equal 2, lines.size
assert_equal "valid_path\t000000000000000a\t000000000000000b\n", lines[0]
assert_equal "valid_path2\t0000000000000003\t0000000000000002\n", lines[1]
end
test '#update_pos' do
write_data(@file, FILE_POS_CONTENT)
fs = build_files(@file)
f = fs['valid_path']
f.update_pos(10)
@file.seek(0)
lines = @file.readlines
assert_equal 2, lines.size
assert_equal "valid_path\t000000000000000a\t0000000000000001\n", lines[0]
assert_equal "valid_path2\t0000000000000003\t0000000000000002\n", lines[1]
end
test '#read_pos' do
write_data(@file, FILE_POS_CONTENT)
fs = build_files(@file)
f = fs['valid_path']
assert_equal 2, f.read_pos
f.update_pos(10)
assert_equal 10, f.read_pos
f.update(2, 11)
assert_equal 11, f.read_pos
end
test '#read_inode' do
write_data(@file, FILE_POS_CONTENT)
fs = build_files(@file)
f = fs['valid_path']
assert_equal 1, f.read_inode
f.update_pos(10)
assert_equal 1, f.read_inode
f.update(2, 11)
assert_equal 2, f.read_inode
end
end
end