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[PATCH 2/5] t0090: disable GIT_TEST_SPLIT_INDEX for the test checking split index




The test 'switching trees does not invalidate shared index' in
't0090-cache-tree.sh' is about verifying the behaviour of the split
index feature, therefore it should be in full control of when index
splitting is performed, like all the tests in 't1700-split-index.sh'.

Unset GIT_TEST_SPLIT_INDEX for this test to avoid unintended random
index splitting.

Signed-off-by: SZEDER Gábor <szeder.dev@xxxxxxxxx>
---
 t/t0090-cache-tree.sh | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/t/t0090-cache-tree.sh b/t/t0090-cache-tree.sh
index 7de40141ca..65b5152b9b 100755
--- a/t/t0090-cache-tree.sh
+++ b/t/t0090-cache-tree.sh
@@ -242,14 +242,18 @@ test_expect_success 'no phantom error when switching trees' '
 	test_must_be_empty errors
 '
 
+
 test_expect_success 'switching trees does not invalidate shared index' '
-	git update-index --split-index &&
-	>split &&
-	git add split &&
-	test-tool dump-split-index .git/index | grep -v ^own >before &&
-	git commit -m "as-is" &&
-	test-tool dump-split-index .git/index | grep -v ^own >after &&
-	test_cmp before after
+	(
+		sane_unset GIT_TEST_SPLIT_INDEX &&
+		git update-index --split-index &&
+		>split &&
+		git add split &&
+		test-tool dump-split-index .git/index | grep -v ^own >before &&
+		git commit -m "as-is" &&
+		test-tool dump-split-index .git/index | grep -v ^own >after &&
+		test_cmp before after
+	)
 '
 
 test_done
-- 
2.19.0.rc0.188.g56c5ee2db1