commit-graph: implement git commit-graph read

diff --git a/t/t5318-commit-graph.sh b/t/t5318-commit-graph.sh
index d7b635bd6892170379443277add3e8e56d999e1a..2f44f91193324c2a5ef3534481a3278e0357e239 100755 (executable)
--- a/t/t5318-commit-graph.sh
+++ b/t/t5318-commit-graph.sh
@@ -26,10 +26,28 @@ test_expect_success 'create commits and repack' '
        git repack
 '
 
+graph_read_expect() {
+       OPTIONAL=""
+       NUM_CHUNKS=3
+       if test ! -z $2
+       then
+               OPTIONAL=" $2"
+               NUM_CHUNKS=$((3 + $(echo "$2" | wc -w)))
+       fi
+       cat >expect <<- EOF
+       header: 43475048 1 1 $NUM_CHUNKS 0
+       num_commits: $1
+       chunks: oid_fanout oid_lookup commit_metadata$OPTIONAL
+       EOF
+       git commit-graph read >output &&
+       test_cmp expect output
+}
+
 test_expect_success 'write graph' '
        cd "$TRASH_DIRECTORY/full" &&
        graph1=$(git commit-graph write) &&
-       test_path_is_file $objdir/info/commit-graph
+       test_path_is_file $objdir/info/commit-graph &&
+       graph_read_expect "3"
 '
 
 test_expect_success 'Add more commits' '
@@ -72,7 +90,8 @@ test_expect_success 'Add more commits' '
 test_expect_success 'write graph with merges' '
        cd "$TRASH_DIRECTORY/full" &&
        git commit-graph write &&
-       test_path_is_file $objdir/info/commit-graph
+       test_path_is_file $objdir/info/commit-graph &&
+       graph_read_expect "10" "large_edges"
 '
 
 test_expect_success 'Add one more commit' '
@@ -99,13 +118,15 @@ test_expect_success 'Add one more commit' '
 test_expect_success 'write graph with new commit' '
        cd "$TRASH_DIRECTORY/full" &&
        git commit-graph write &&
-       test_path_is_file $objdir/info/commit-graph
+       test_path_is_file $objdir/info/commit-graph &&
+       graph_read_expect "11" "large_edges"
 '
 
 test_expect_success 'write graph with nothing new' '
        cd "$TRASH_DIRECTORY/full" &&
        git commit-graph write &&
-       test_path_is_file $objdir/info/commit-graph
+       test_path_is_file $objdir/info/commit-graph &&
+       graph_read_expect "11" "large_edges"
 '
 
 test_expect_success 'setup bare repo' '
@@ -118,7 +139,8 @@ test_expect_success 'setup bare repo' '
 test_expect_success 'write graph in bare repo' '
        cd "$TRASH_DIRECTORY/bare" &&
        git commit-graph write &&
-       test_path_is_file $baredir/info/commit-graph
+       test_path_is_file $baredir/info/commit-graph &&
+       graph_read_expect "11" "large_edges"
 '
 
 test_done