t/t0095-bloom.sh

   1 #!/bin/sh
   2
   3 test_description='Testing the various Bloom filter computations in bloom.c'
   4 . ./test-lib.sh
   5
   6 test_expect_success 'compute unseeded murmur3 hash for empty string' '
   7         cat >expect <<-\EOF &&
   8         Murmur3 Hash with seed=0:0x00000000
   9         EOF
  10         test-tool bloom get_murmur3 "" >actual &&
  11         test_cmp expect actual
  12 '
  13
  14 test_expect_success 'compute unseeded murmur3 hash for test string 1' '
  15         cat >expect <<-\EOF &&
  16         Murmur3 Hash with seed=0:0x627b0c2c
  17         EOF
  18         test-tool bloom get_murmur3 "Hello world!" >actual &&
  19         test_cmp expect actual
  20 '
  21
  22 test_expect_success 'compute unseeded murmur3 hash for test string 2' '
  23         cat >expect <<-\EOF &&
  24         Murmur3 Hash with seed=0:0x2e4ff723
  25         EOF
  26         test-tool bloom get_murmur3 "The quick brown fox jumps over the lazy dog" >actual &&
  27         test_cmp expect actual
  28 '
  29
  30 test_expect_success 'compute bloom key for empty string' '
  31         cat >expect <<-\EOF &&
  32         Hashes:0x5615800c|0x5b966560|0x61174ab4|0x66983008|0x6c19155c|0x7199fab0|0x771ae004|
  33         Filter_Length:2
  34         Filter_Data:11|11|
  35         EOF
  36         test-tool bloom generate_filter "" >actual &&
  37         test_cmp expect actual
  38 '
  39
  40 test_expect_success 'compute bloom key for whitespace' '
  41         cat >expect <<-\EOF &&
  42         Hashes:0xf178874c|0x5f3d6eb6|0xcd025620|0x3ac73d8a|0xa88c24f4|0x16510c5e|0x8415f3c8|
  43         Filter_Length:2
  44         Filter_Data:51|55|
  45         EOF
  46         test-tool bloom generate_filter " " >actual &&
  47         test_cmp expect actual
  48 '
  49
  50 test_expect_success 'compute bloom key for test string 1' '
  51         cat >expect <<-\EOF &&
  52         Hashes:0xb270de9b|0x1bb6f26e|0x84fd0641|0xee431a14|0x57892de7|0xc0cf41ba|0x2a15558d|
  53         Filter_Length:2
  54         Filter_Data:92|6c|
  55         EOF
  56         test-tool bloom generate_filter "Hello world!" >actual &&
  57         test_cmp expect actual
  58 '
  59
  60 test_expect_success 'compute bloom key for test string 2' '
  61         cat >expect <<-\EOF &&
  62         Hashes:0x20ab385b|0xf5237fe2|0xc99bc769|0x9e140ef0|0x728c5677|0x47049dfe|0x1b7ce585|
  63         Filter_Length:2
  64         Filter_Data:a5|4a|
  65         EOF
  66         test-tool bloom generate_filter "file.txt" >actual &&
  67         test_cmp expect actual
  68 '
  69
  70 test_expect_success 'get bloom filters for commit with no changes' '
  71         git init &&
  72         git commit --allow-empty -m "c0" &&
  73         cat >expect <<-\EOF &&
  74         Filter_Length:1
  75         Filter_Data:00|
  76         EOF
  77         test-tool bloom get_filter_for_commit "$(git rev-parse HEAD)" >actual &&
  78         test_cmp expect actual
  79 '
  80
  81 test_expect_success 'get bloom filter for commit with 10 changes' '
  82         rm actual &&
  83         rm expect &&
  84         mkdir smallDir &&
  85         for i in $(test_seq 0 9)
  86         do
  87                 echo $i >smallDir/$i || return 1
  88         done &&
  89         git add smallDir &&
  90         git commit -m "commit with 10 changes" &&
  91         cat >expect <<-\EOF &&
  92         Filter_Length:14
  93         Filter_Data:02|b3|c4|a0|34|e7|fe|eb|cb|47|fe|a0|e8|72|
  94         EOF
  95         test-tool bloom get_filter_for_commit "$(git rev-parse HEAD)" >actual &&
  96         test_cmp expect actual
  97 '
  98
  99 test_expect_success EXPENSIVE 'get bloom filter for commit with 513 changes' '
 100         rm actual &&
 101         rm expect &&
 102         mkdir bigDir &&
 103         for i in $(test_seq 0 511)
 104         do
 105                 echo $i >bigDir/$i || return 1
 106         done &&
 107         git add bigDir &&
 108         git commit -m "commit with 513 changes" &&
 109         cat >expect <<-\EOF &&
 110         Filter_Length:1
 111         Filter_Data:ff|
 112         EOF
 113         test-tool bloom get_filter_for_commit "$(git rev-parse HEAD)" >actual &&
 114         test_cmp expect actual
 115 '
 116
 117 test_done