t/t6115-rev-list-du.sh

   1 #!/bin/sh
   2
   3 test_description='basic tests of rev-list --disk-usage'
   4 . ./test-lib.sh
   5
   6 # we want a mix of reachable and unreachable, as well as
   7 # objects in the bitmapped pack and some outside of it
   8 test_expect_success 'set up repository' '
   9         test_commit --no-tag one &&
  10         test_commit --no-tag two &&
  11         git repack -adb &&
  12         git reset --hard HEAD^ &&
  13         test_commit --no-tag three &&
  14         test_commit --no-tag four &&
  15         git reset --hard HEAD^
  16 '
  17
  18 # We don't want to hardcode sizes, because they depend on the exact details of
  19 # packing, zlib, etc. We'll assume that the regular rev-list and cat-file
  20 # machinery works and compare the --disk-usage output to that.
  21 disk_usage_slow () {
  22         git rev-list --no-object-names "$@" |
  23         git cat-file --batch-check="%(objectsize:disk)" |
  24         perl -lne '$total += $_; END { print $total}'
  25 }
  26
  27 # check behavior with given rev-list options; note that
  28 # whitespace is not preserved in args
  29 check_du () {
  30         args=$*
  31
  32         test_expect_success "generate expected size ($args)" "
  33                 disk_usage_slow $args >expect
  34         "
  35
  36         test_expect_success "rev-list --disk-usage without bitmaps ($args)" "
  37                 git rev-list --disk-usage $args >actual &&
  38                 test_cmp expect actual
  39         "
  40
  41         test_expect_success "rev-list --disk-usage with bitmaps ($args)" "
  42                 git rev-list --disk-usage --use-bitmap-index $args >actual &&
  43                 test_cmp expect actual
  44         "
  45 }
  46
  47 check_du HEAD
  48 check_du --objects HEAD
  49 check_du --objects HEAD^..HEAD
  50
  51 # As mentioned above, don't use hardcode sizes as actual size, but use the
  52 # output from git cat-file.
  53 test_expect_success 'rev-list --disk-usage=human' '
  54         git rev-list --objects HEAD --disk-usage=human >actual &&
  55         disk_usage_slow --objects HEAD >actual_size &&
  56         grep "$(cat actual_size) bytes" actual
  57 '
  58
  59 test_expect_success 'rev-list --disk-usage=human with bitmaps' '
  60         git rev-list --objects HEAD --use-bitmap-index --disk-usage=human >actual &&
  61         disk_usage_slow --objects HEAD >actual_size &&
  62         grep "$(cat actual_size) bytes" actual
  63 '
  64
  65 test_expect_success 'rev-list use --disk-usage unproperly' '
  66         test_must_fail git rev-list --objects HEAD --disk-usage=typo 2>err &&
  67         cat >expect <<-\EOF &&
  68         fatal: invalid value for '\''--disk-usage=<format>'\'': '\''typo'\'', the only allowed format is '\''human'\''
  69         EOF
  70         test_cmp err expect
  71 '
  72
  73 test_done