git-commit-vandalism/t/t0095-bloom.sh
Eric Sunshine db5875aa9f t0000-t3999: detect and signal failure within loop
Failures within `for` and `while` loops can go unnoticed if not detected
and signaled manually since the loop itself does not abort when a
contained command fails, nor will a failure necessarily be detected when
the loop finishes since the loop returns the exit code of the last
command it ran on the final iteration, which may not be the command
which failed. Therefore, detect and signal failures manually within
loops using the idiom `|| return 1` (or `|| exit 1` within subshells).

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13 10:29:48 -08:00

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#!/bin/sh
test_description='Testing the various Bloom filter computations in bloom.c'
. ./test-lib.sh
test_expect_success 'compute unseeded murmur3 hash for empty string' '
cat >expect <<-\EOF &&
Murmur3 Hash with seed=0:0x00000000
EOF
test-tool bloom get_murmur3 "" >actual &&
test_cmp expect actual
'
test_expect_success 'compute unseeded murmur3 hash for test string 1' '
cat >expect <<-\EOF &&
Murmur3 Hash with seed=0:0x627b0c2c
EOF
test-tool bloom get_murmur3 "Hello world!" >actual &&
test_cmp expect actual
'
test_expect_success 'compute unseeded murmur3 hash for test string 2' '
cat >expect <<-\EOF &&
Murmur3 Hash with seed=0:0x2e4ff723
EOF
test-tool bloom get_murmur3 "The quick brown fox jumps over the lazy dog" >actual &&
test_cmp expect actual
'
test_expect_success 'compute bloom key for empty string' '
cat >expect <<-\EOF &&
Hashes:0x5615800c|0x5b966560|0x61174ab4|0x66983008|0x6c19155c|0x7199fab0|0x771ae004|
Filter_Length:2
Filter_Data:11|11|
EOF
test-tool bloom generate_filter "" >actual &&
test_cmp expect actual
'
test_expect_success 'compute bloom key for whitespace' '
cat >expect <<-\EOF &&
Hashes:0xf178874c|0x5f3d6eb6|0xcd025620|0x3ac73d8a|0xa88c24f4|0x16510c5e|0x8415f3c8|
Filter_Length:2
Filter_Data:51|55|
EOF
test-tool bloom generate_filter " " >actual &&
test_cmp expect actual
'
test_expect_success 'compute bloom key for test string 1' '
cat >expect <<-\EOF &&
Hashes:0xb270de9b|0x1bb6f26e|0x84fd0641|0xee431a14|0x57892de7|0xc0cf41ba|0x2a15558d|
Filter_Length:2
Filter_Data:92|6c|
EOF
test-tool bloom generate_filter "Hello world!" >actual &&
test_cmp expect actual
'
test_expect_success 'compute bloom key for test string 2' '
cat >expect <<-\EOF &&
Hashes:0x20ab385b|0xf5237fe2|0xc99bc769|0x9e140ef0|0x728c5677|0x47049dfe|0x1b7ce585|
Filter_Length:2
Filter_Data:a5|4a|
EOF
test-tool bloom generate_filter "file.txt" >actual &&
test_cmp expect actual
'
test_expect_success 'get bloom filters for commit with no changes' '
git init &&
git commit --allow-empty -m "c0" &&
cat >expect <<-\EOF &&
Filter_Length:1
Filter_Data:00|
EOF
test-tool bloom get_filter_for_commit "$(git rev-parse HEAD)" >actual &&
test_cmp expect actual
'
test_expect_success 'get bloom filter for commit with 10 changes' '
rm actual &&
rm expect &&
mkdir smallDir &&
for i in $(test_seq 0 9)
do
echo $i >smallDir/$i || return 1
done &&
git add smallDir &&
git commit -m "commit with 10 changes" &&
cat >expect <<-\EOF &&
Filter_Length:14
Filter_Data:02|b3|c4|a0|34|e7|fe|eb|cb|47|fe|a0|e8|72|
EOF
test-tool bloom get_filter_for_commit "$(git rev-parse HEAD)" >actual &&
test_cmp expect actual
'
test_expect_success EXPENSIVE 'get bloom filter for commit with 513 changes' '
rm actual &&
rm expect &&
mkdir bigDir &&
for i in $(test_seq 0 511)
do
echo $i >bigDir/$i || return 1
done &&
git add bigDir &&
git commit -m "commit with 513 changes" &&
cat >expect <<-\EOF &&
Filter_Length:1
Filter_Data:ff|
EOF
test-tool bloom get_filter_for_commit "$(git rev-parse HEAD)" >actual &&
test_cmp expect actual
'
test_done