[RFC PATCH 06/18] midx: add t5318-midx.sh test script

[Derrick Stolee <stolee@gmail.com>]

Test interactions between the midx builtin and other Git operations.

Use both a full repo and a bare repo to ensure the pack directory
redirection works correctly.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 t/t5318-midx.sh | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100755 t/t5318-midx.sh

diff --git a/t/t5318-midx.sh b/t/t5318-midx.sh
new file mode 100755
index 0000000000..869bbea29c
--- /dev/null
+++ b/t/t5318-midx.sh
@@ -0,0 +1,100 @@
+#!/bin/sh
+
+test_description='multi-pack indexes'
+. ./test-lib.sh
+
+test_expect_success 'config' \
+    'rm -rf .git &&
+     mkdir full &&
+     cd full &&
+     git init &&
+     git config core.midx true &&
+     git config pack.threads 1 &&
+     packdir=.git/objects/pack'
+
+test_expect_success 'write-midx with no packs' \
+    'midx0=$(git midx --write) &&
+     test "a$midx0" = "a"'
+
+test_expect_success 'create objects' \
+    'for i in $(test_seq 100)
+     do
+         echo $i >file-1-$i
+     done &&
+     git add file-* &&
+     test_tick &&
+     git commit -m "test data 1" &&
+     git branch commit1 HEAD'
+
+test_expect_success 'write-midx from index version 1' \
+    'pack1=$(git rev-list --all --objects | git pack-objects --index-version=1 ${packdir}/test-1) &&
+     midx1=$(git midx --write) &&
+     test_path_is_file ${packdir}/midx-${midx1}.midx'
+
+test_expect_success 'write-midx from index version 2' \
+    'rm "${packdir}/test-1-${pack1}.pack" &&
+     pack2=$(git rev-list --all --objects | git pack-objects --index-version=2 ${packdir}/test-2) &&
+     midx2=$(git midx --write) &&
+     test_path_is_file ${packdir}/midx-${midx2}.midx'
+
+test_expect_success 'Create more objects' \
+    'for i in $(test_seq 100)
+     do
+         echo $i >file-2-$i
+     done &&
+     git add file-* &&
+     test_tick &&
+     git commit -m "test data 2" &&
+     git branch commit2 HEAD'
+
+test_expect_success 'write-midx with two packs' \
+    'pack3=$(git rev-list --objects commit2 ^commit1 | git pack-objects --index-version=2 ${packdir}/test-3) &&
+     midx3=$(git midx --write) &&
+     test_path_is_file ${packdir}/midx-${midx3}.midx'
+
+test_expect_success 'Add more packs' \
+    'for j in $(test_seq 10)
+     do
+         jjj=$(printf '%03i' $j)
+         test-genrandom "bar" 200 > wide_delta_$jjj &&
+         test-genrandom "baz $jjj" 50 >> wide_delta_$jjj &&
+         test-genrandom "foo"$j 100 > deep_delta_$jjj &&
+         test-genrandom "foo"$(expr $j + 1) 100 >> deep_delta_$jjj &&
+         test-genrandom "foo"$(expr $j + 2) 100 >> deep_delta_$jjj &&
+         echo $jjj >file_$jjj &&
+         test-genrandom "$jjj" 8192 >>file_$jjj &&
+         git update-index --add file_$jjj deep_delta_$jjj wide_delta_$jjj &&
+         { echo 101 && test-genrandom 100 8192; } >file_101 &&
+         git update-index --add file_101 &&
+         commit=$(git commit-tree $EMPTY_TREE -p HEAD</dev/null) && {
+         echo $EMPTY_TREE &&
+         git ls-tree $EMPTY_TREE | sed -e "s/.* \\([0-9a-f]*\\)	.*/\\1/"
+         } >obj-list &&
+         echo commit_packs_$j = $commit &&
+	 git branch commit_packs_$j $commit &&
+         git update-ref HEAD $commit &&
+         git pack-objects --index-version=2 ${packdir}/test-pack <obj-list
+     done'
+
+test_expect_success 'write-midx with twelve packs' \
+    'midx4=$(git midx --write) &&
+     test_path_is_file ${packdir}/midx-${midx4}.midx'
+
+test_expect_success 'write-midx with no new packs' \
+    'midx5=$(git midx --write) &&
+     test_path_is_file ${packdir}/midx-${midx5}.midx &&
+     test "a$midx4" = "a$midx5"'
+
+test_expect_success 'create bare repo' \
+    'cd .. &&
+     git clone --bare full bare &&
+     cd bare &&
+     git config core.midx true &&
+     git config pack.threads 1 &&
+     baredir=objects/pack'
+
+test_expect_success 'write-midx in bare repo' \
+    'midxbare=$(git midx --write) &&
+     test_path_is_file ${baredir}/midx-${midxbare}.midx'
+
+test_done
-- 
2.15.0