t/t5328-commit-graph-64bit-time.sh

   1 #!/bin/sh
   2
   3 test_description='commit graph with 64-bit timestamps'
   4
   5 TEST_PASSES_SANITIZE_LEAK=true
   6 . ./test-lib.sh
   7
   8 if ! test_have_prereq TIME_IS_64BIT || ! test_have_prereq TIME_T_IS_64BIT
   9 then
  10         skip_all='skipping 64-bit timestamp tests'
  11         test_done
  12 fi
  13
  14 . "$TEST_DIRECTORY"/lib-commit-graph.sh
  15 . "$TEST_DIRECTORY/lib-chunk.sh"
  16
  17 UNIX_EPOCH_ZERO="@0 +0000"
  18 FUTURE_DATE="@4147483646 +0000"
  19
  20 GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS=0
  21
  22 test_expect_success 'lower layers have overflow chunk' '
  23         rm -f .git/objects/info/commit-graph &&
  24         test_commit --date "$FUTURE_DATE" future-1 &&
  25         test_commit --date "$UNIX_EPOCH_ZERO" old-1 &&
  26         git commit-graph write --reachable &&
  27         test_commit --date "$FUTURE_DATE" future-2 &&
  28         test_commit --date "$UNIX_EPOCH_ZERO" old-2 &&
  29         git commit-graph write --reachable --split=no-merge &&
  30         test_commit extra &&
  31         git commit-graph write --reachable --split=no-merge &&
  32         git commit-graph write --reachable &&
  33         graph_read_expect 5 "generation_data generation_data_overflow" &&
  34         mv .git/objects/info/commit-graph commit-graph-upgraded &&
  35         git commit-graph write --reachable &&
  36         graph_read_expect 5 "generation_data generation_data_overflow" &&
  37         test_cmp .git/objects/info/commit-graph commit-graph-upgraded
  38 '
  39
  40 graph_git_behavior 'overflow' '' HEAD~2 HEAD
  41
  42 test_expect_success 'set up and verify repo with generation data overflow chunk' '
  43         git init repo &&
  44         (
  45                 cd repo &&
  46                 test_commit --date "$UNIX_EPOCH_ZERO" 1 &&
  47                 test_commit 2 &&
  48                 test_commit --date "$UNIX_EPOCH_ZERO" 3 &&
  49                 git commit-graph write --reachable &&
  50                 graph_read_expect 3 generation_data &&
  51                 test_commit --date "$FUTURE_DATE" 4 &&
  52                 test_commit 5 &&
  53                 test_commit --date "$UNIX_EPOCH_ZERO" 6 &&
  54                 git branch left &&
  55                 git reset --hard 3 &&
  56                 test_commit 7 &&
  57                 test_commit --date "$FUTURE_DATE" 8 &&
  58                 test_commit 9 &&
  59                 git branch right &&
  60                 git reset --hard 3 &&
  61                 test_merge M left right &&
  62                 git commit-graph write --reachable &&
  63                 graph_read_expect 10 "generation_data generation_data_overflow" &&
  64                 git commit-graph verify
  65         )
  66 '
  67
  68 graph_git_behavior 'overflow 2' repo left right
  69
  70 test_expect_success 'single commit with generation data exceeding UINT32_MAX' '
  71         git init repo-uint32-max &&
  72         test_commit -C repo-uint32-max --date "@4294967297 +0000" 1 &&
  73         git -C repo-uint32-max commit-graph write --reachable &&
  74         graph_read_expect -C repo-uint32-max 1 "generation_data" &&
  75         git -C repo-uint32-max commit-graph verify
  76 '
  77
  78 test_expect_success 'reader notices out-of-bounds generation overflow' '
  79         graph=.git/objects/info/commit-graph &&
  80         test_when_finished "rm -rf $graph" &&
  81         git commit-graph write --reachable &&
  82         corrupt_chunk_file $graph GDO2 clear &&
  83         test_must_fail git log 2>err &&
  84         grep "commit-graph overflow generation data is too small" err
  85 '
  86
  87 test_done