From 347c41d307f85b1264fbf1c06fff9e5c8cb2e091 Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Sun, 6 Nov 2011 04:39:08 +0000
Subject: [PATCH] tests: integration tests for mogtool --bigfile

We need to test deprecated behavior to not break
expectations for large, archived files in the future.
---
 test/integration.rb          |  82 ++++++++++++++++++++++++++++++
 test/test_mogtool_bigfile.rb | 116 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 198 insertions(+)
 create mode 100644 test/integration.rb
 create mode 100644 test/test_mogtool_bigfile.rb

diff --git a/test/integration.rb b/test/integration.rb
new file mode 100644
index 0000000..548cb02
--- /dev/null
+++ b/test/integration.rb
@@ -0,0 +1,82 @@
+# -*- encoding: binary -*-
+$stdout.sync = $stderr.sync = true
+require 'test/unit'
+require 'securerandom'
+require 'tempfile'
+require 'digest'
+require 'mogilefs'
+
+class TestMogIntegration < Test::Unit::TestCase
+  def uuid
+    SecureRandom.uuid
+  rescue NoMethodError
+    require "uuid"
+    UUID.generate
+  end
+
+  def setup
+    @to_close = []
+    @trackers = ENV["MOG_TEST_TRACKERS"].split(/,/)
+    now = Time.now
+    domain = "rbmogtest#{now.strftime('%Y%m%d%H%M%S')}.#{uuid}"
+    mogadm!("domain", "add", domain)
+    sleep 4 # wait for monitor to refresh caches
+    @domain = domain
+  end
+
+  def mogadm(*args)
+    x("mogadm", "--trackers=#{@trackers.join(',')}", *args)
+  end
+
+  def x(*cmd)
+    out, err = tmpfile("out"), tmpfile("err")
+    puts cmd.join(' ') if $VERBOSE
+    pid = fork do
+      $stderr.reopen(err.path, "a")
+      $stdout.reopen(out.path, "a")
+      out.close
+      err.close
+      exec(*cmd)
+    end
+    _, status = Process.waitpid2(pid)
+    out.rewind
+    err.rewind
+    [ status, out, err ]
+  end
+
+  def mogadm!(*args)
+    status, out, err = mogadm(*args)
+    assert status.success?, "#{status.inspect} / #{out.read} / #{err.read}"
+    [ status, out, err ]
+  end
+
+  def x!(*cmd)
+    status, out, err = x(*cmd)
+    assert status.success?, "#{status.inspect} / #{out.read} / #{err.read}"
+    [ status, out, err ]
+  end
+
+  def tmpfile(name)
+    tmp = Tempfile.new(name)
+    @to_close << tmp
+    tmp
+  end
+
+  def teardown
+    if defined?(@domain)
+      client = MogileFS::MogileFS.new :hosts => @trackers, :domain => @domain
+      client.each_key("") { |key|
+        p [ :delete, key ] if $VERBOSE
+        client.delete(key)
+      }
+      mogadm!("domain", "delete", @domain)
+    end
+    @to_close.each do |io|
+      io.closed? or io.close
+    end
+  end
+end if ENV["MOG_TEST_TRACKERS"]
+
+class TestMogIntegration
+  warn "MOG_TEST_TRACKERS not defined"
+end unless ENV["MOG_TEST_TRACKERS"]
diff --git a/test/test_mogtool_bigfile.rb b/test/test_mogtool_bigfile.rb
new file mode 100644
index 0000000..c268184
--- /dev/null
+++ b/test/test_mogtool_bigfile.rb
@@ -0,0 +1,116 @@
+# -*- encoding: binary -*-
+require "./test/integration"
+require "net/http"
+ok = true
+unless File.executable?(`which mogtool 2>/dev/null`.strip)
+  warn "mogtool not found, skipping #{__FILE__}"
+  ok = false
+end
+
+class TestMogtoolBigfile < TestMogIntegration
+  buf = File.open("/dev/urandom") { |fp| fp.read(1024) }
+  buf *= 1024
+  RAND = Tempfile.new("rand")
+  RAND.sync = true
+  sha1 = Digest::SHA1.new
+  100.times { sha1 << buf; RAND.write(buf) }
+  buf = nil
+  RAND_SHA1 = sha1.hexdigest
+
+  def setup
+    super
+    RAND.rewind
+    @big_uuid = "big-#{uuid}"
+    @client = MogileFS::MogileFS.new(:hosts => @trackers, :domain => @domain)
+  end
+
+  def mogtool!(*args)
+    x!("mogtool", "--trackers=#{@trackers.join(',')}",
+       "--domain=#@domain", *args)
+  end
+
+  # the mogtool definition of gzip is wrong and just raw zlib deflate
+  def test_bigfile_gzip_mogtool
+    mogtool!("inject", "--gzip", "--bigfile", RAND.path, @big_uuid)
+    sha1_check
+  end
+
+  def test_bigfile_mogtool
+    mogtool!("inject", "--bigfile", RAND.path, @big_uuid)
+    sha1_check
+
+    # ensure fallback works for rebalanced/replaced files
+    part1 = "#@big_uuid,1"
+    tmp = tmpfile("part1")
+    before_uris = @client.get_uris(part1)
+    @client.get_file_data(part1) { |sock| MogileFS::X.copy_stream(sock, tmp) }
+    @client.delete(part1)
+    @client.store_file(part1, nil, tmp.path)
+    wait_for_DELETE(before_uris)
+    sha1_check
+
+    # corrupt the existing data in part1
+    @client.store_content(part1, nil, "HELLO")
+    after_uris = @client.get_uris(part1)
+
+    # corruption is detected on verify
+    junk = tmpfile("junk")
+    assert_raises(MogileFS::ChecksumMismatchError) do
+      @client.bigfile_write("_big_info:#@big_uuid", junk, :verify => true)
+    end
+
+    # corruption is NOT detected on verify
+    junk = tmpfile("junk")
+    assert_nothing_raised do
+      @client.bigfile_write("_big_info:#@big_uuid", junk, :verify => false)
+    end
+
+    # restoring no-corrupted data succeeds!
+    @client.store_file(part1, nil, tmp.path)
+    sha1_check
+
+    # missing parts fail
+    before_uris = @client.get_uris(part1)
+    @client.delete(part1)
+    junk = tmpfile("junk")
+    assert_raises(MogileFS::Backend::UnknownKeyError) do
+      @client.bigfile_write("_big_info:#@big_uuid", junk, :verify => true)
+    end
+  end
+
+  def wait_for_DELETE(uris)
+    uris.each do |uri|
+      tries = 0
+      begin
+        Net::HTTP.start(uri.host, uri.port) do |http|
+          sleep(0.1) while Net::HTTPOK === http.head(uri.path)
+        end
+      rescue
+        if (tries += 1) < 666
+          sleep(0.1)
+          retry
+        end
+        raise
+      end
+    end
+  end
+
+  def sha1_check
+    r, w = IO.pipe
+    @to_close << r
+    @to_close << w
+    th = Thread.new do
+      sha1 = Digest::SHA1.new
+      buf = ""
+      while r.read(16384, buf)
+        sha1 << buf
+      end
+      sha1.hexdigest
+    end
+    res = @client.bigfile_write("_big_info:#@big_uuid", w, :verify => true)
+    w.close
+    read_sha1 = th.value
+    assert_equal RAND_SHA1, read_sha1
+    assert_equal RAND.size, res[0]
+  end
+end if ok
-- 
2.11.4.GIT