[PATCH 03/27] t1092: compare sparse-checkout to sparse-index

@@ -7,6 +7,7 @@ test_description='compare full workdir to sparse workdir'
 test_expect_success 'setup' '
 	git init initial-repo &&
 	(
+		(GIT_TEST_SPARSE_INDEX=0 && export GIT_TEST_SPARSE_INDEX) &&
 		cd initial-repo &&
 		echo a >a &&
 		echo "after deep" >e &&

@@ -87,23 +88,32 @@ init_repos () {
 
 	cp -r initial-repo sparse-checkout &&
 	git -C sparse-checkout reset --hard &&
-	git -C sparse-checkout sparse-checkout init --cone &&
+
+	cp -r initial-repo sparse-index &&
+	git -C sparse-index reset --hard &&
 
 	# initialize sparse-checkout definitions
-	git -C sparse-checkout sparse-checkout set deep
+	git -C sparse-checkout sparse-checkout init --cone &&
+	git -C sparse-checkout sparse-checkout set deep &&
+	GIT_TEST_SPARSE_INDEX=1 git -C sparse-index sparse-checkout init --cone &&
+	GIT_TEST_SPARSE_INDEX=1 git -C sparse-index sparse-checkout set deep
 }
 
 run_on_sparse () {
 	(
 		cd sparse-checkout &&
-		$* >../sparse-checkout-out 2>../sparse-checkout-err
+		GIT_TEST_SPARSE_INDEX=0 $* >../sparse-checkout-out 2>../sparse-checkout-err
+	) &&
+	(
+		cd sparse-index &&
+		$* >../sparse-index-out 2>../sparse-index-err
 	)
 }
 
 run_on_all () {
 	(
 		cd full-checkout &&
-		$* >../full-checkout-out 2>../full-checkout-err
+		GIT_TEST_SPARSE_INDEX=0 $* >../full-checkout-out 2>../full-checkout-err
 	) &&
 	run_on_sparse $*
 }

@@ -114,6 +124,17 @@ test_all_match () {
 	test_cmp full-checkout-err sparse-checkout-err
 }
 
+test_sparse_match () {
+	run_on_sparse $* &&
+	test_cmp sparse-checkout-out sparse-index-out &&
+	test_cmp sparse-checkout-err sparse-index-err
+}
+
+test_expect_success 'expanded in-memory index matches full index' '
+	init_repos &&
+	test_sparse_match test-tool read-cache --expand --table-no-stat
+'
+
 test_expect_success 'status with options' '
 	init_repos &&
 	test_all_match git status --porcelain=v2 &&