1 files changed, 117 insertions, 0 deletions
diff --git a/third_party/git/t/t0095-bloom.sh b/third_party/git/t/t0095-bloom.sh
new file mode 100755
index 0000000000..7e4ab1795f
--- /dev/null
+++ b/third_party/git/t/t0095-bloom.sh
@@ -0,0 +1,117 @@
+#!/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
+	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
+	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