services/keepstore/collision_test.go

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 package keepstore
   6
   7 import (
   8         "bytes"
   9         "testing/iotest"
  10
  11         check "gopkg.in/check.v1"
  12 )
  13
  14 var _ = check.Suite(&CollisionSuite{})
  15
  16 type CollisionSuite struct{}
  17
  18 func (s *CollisionSuite) TestCollisionOrCorrupt(c *check.C) {
  19         fooMD5 := "acbd18db4cc2f85cedef654fccc4a4d8"
  20
  21         c.Check(collisionOrCorrupt(fooMD5, []byte{'f'}, []byte{'o'}, bytes.NewBufferString("o")),
  22                 check.Equals, CollisionError)
  23         c.Check(collisionOrCorrupt(fooMD5, []byte{'f'}, nil, bytes.NewBufferString("oo")),
  24                 check.Equals, CollisionError)
  25         c.Check(collisionOrCorrupt(fooMD5, []byte{'f'}, []byte{'o', 'o'}, nil),
  26                 check.Equals, CollisionError)
  27         c.Check(collisionOrCorrupt(fooMD5, nil, []byte{}, bytes.NewBufferString("foo")),
  28                 check.Equals, CollisionError)
  29         c.Check(collisionOrCorrupt(fooMD5, []byte{'f', 'o', 'o'}, nil, bytes.NewBufferString("")),
  30                 check.Equals, CollisionError)
  31         c.Check(collisionOrCorrupt(fooMD5, nil, nil, iotest.NewReadLogger("foo: ", iotest.DataErrReader(iotest.OneByteReader(bytes.NewBufferString("foo"))))),
  32                 check.Equals, CollisionError)
  33
  34         c.Check(collisionOrCorrupt(fooMD5, []byte{'f', 'o', 'o'}, nil, bytes.NewBufferString("bar")),
  35                 check.Equals, DiskHashError)
  36         c.Check(collisionOrCorrupt(fooMD5, []byte{'f', 'o'}, nil, nil),
  37                 check.Equals, DiskHashError)
  38         c.Check(collisionOrCorrupt(fooMD5, []byte{}, nil, bytes.NewBufferString("")),
  39                 check.Equals, DiskHashError)
  40         c.Check(collisionOrCorrupt(fooMD5, []byte{'f', 'O'}, nil, bytes.NewBufferString("o")),
  41                 check.Equals, DiskHashError)
  42         c.Check(collisionOrCorrupt(fooMD5, []byte{'f', 'O', 'o'}, nil, nil),
  43                 check.Equals, DiskHashError)
  44         c.Check(collisionOrCorrupt(fooMD5, []byte{'f', 'o'}, []byte{'O'}, nil),
  45                 check.Equals, DiskHashError)
  46         c.Check(collisionOrCorrupt(fooMD5, []byte{'f', 'o'}, nil, bytes.NewBufferString("O")),
  47                 check.Equals, DiskHashError)
  48
  49         c.Check(collisionOrCorrupt(fooMD5, []byte{}, nil, iotest.TimeoutReader(iotest.OneByteReader(bytes.NewBufferString("foo")))),
  50                 check.Equals, iotest.ErrTimeout)
  51 }