t/t5309-pack-delta-cycles.sh

   1 #!/bin/sh
   2
   3 test_description='test index-pack handling of delta cycles in packfiles'
   4
   5 TEST_PASSES_SANITIZE_LEAK=true
   6 . ./test-lib.sh
   7 . "$TEST_DIRECTORY"/lib-pack.sh
   8
   9 # Two similar-ish objects that we have computed deltas between.
  10 A=$(test_oid packlib_7_0)
  11 B=$(test_oid packlib_7_76)
  12
  13 # double-check our hand-constucted packs
  14 test_expect_success 'index-pack works with a single delta (A->B)' '
  15         clear_packs &&
  16         {
  17                 pack_header 2 &&
  18                 pack_obj $A $B &&
  19                 pack_obj $B
  20         } >ab.pack &&
  21         pack_trailer ab.pack &&
  22         git index-pack --stdin <ab.pack &&
  23         git cat-file -t $A &&
  24         git cat-file -t $B
  25 '
  26
  27 test_expect_success 'index-pack works with a single delta (B->A)' '
  28         clear_packs &&
  29         {
  30                 pack_header 2 &&
  31                 pack_obj $A &&
  32                 pack_obj $B $A
  33         } >ba.pack &&
  34         pack_trailer ba.pack &&
  35         git index-pack --stdin <ba.pack &&
  36         git cat-file -t $A &&
  37         git cat-file -t $B
  38 '
  39
  40 test_expect_success 'index-pack detects missing base objects' '
  41         clear_packs &&
  42         {
  43                 pack_header 1 &&
  44                 pack_obj $A $B
  45         } >missing.pack &&
  46         pack_trailer missing.pack &&
  47         test_must_fail git index-pack --fix-thin --stdin <missing.pack
  48 '
  49
  50 test_expect_success 'index-pack detects REF_DELTA cycles' '
  51         clear_packs &&
  52         {
  53                 pack_header 2 &&
  54                 pack_obj $A $B &&
  55                 pack_obj $B $A
  56         } >cycle.pack &&
  57         pack_trailer cycle.pack &&
  58         test_must_fail git index-pack --fix-thin --stdin <cycle.pack
  59 '
  60
  61 test_expect_success 'failover to an object in another pack' '
  62         clear_packs &&
  63         git index-pack --stdin <ab.pack &&
  64         test_must_fail git index-pack --stdin --fix-thin <cycle.pack
  65 '
  66
  67 test_expect_success 'failover to a duplicate object in the same pack' '
  68         clear_packs &&
  69         {
  70                 pack_header 3 &&
  71                 pack_obj $A $B &&
  72                 pack_obj $B $A &&
  73                 pack_obj $A
  74         } >recoverable.pack &&
  75         pack_trailer recoverable.pack &&
  76         test_must_fail git index-pack --fix-thin --stdin <recoverable.pack
  77 '
  78
  79 test_done