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[v5,15/21] sparse-index: check index conversion happens

Message ID 57be9b4a728b2bb16c841d3bad3c9c876a8839e0.1617109865.git.gitgitgadget@gmail.com (mailing list archive)
State Accepted
Commit 0938e6ff552510d4e6e495f062a9fab3e932178a
Headers show
Series Sparse Index: Design, Format, Tests | expand

Commit Message

Derrick Stolee March 30, 2021, 1:10 p.m. UTC 
From: Derrick Stolee <dstolee@microsoft.com>

Add a test case that uses test_region to ensure that we are truly
expanding a sparse index to a full one, then converting back to sparse
when writing the index. As we integrate more Git commands with the
sparse index, we will convert these commands to check that we do _not_
convert the sparse index to a full index and instead stay sparse the
entire time.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 t/t1092-sparse-checkout-compatibility.sh | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
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Patch

diff --git a/t/t1092-sparse-checkout-compatibility.sh b/t/t1092-sparse-checkout-compatibility.sh
index cba5f89b1e96..47f983217852 100755
--- a/t/t1092-sparse-checkout-compatibility.sh
+++ b/t/t1092-sparse-checkout-compatibility.sh
@@ -393,4 +393,22 @@  test_expect_success 'submodule handling' '
 	grep "160000 commit $(git -C initial-repo rev-parse HEAD)	modules/sub" cache
 '
 
+test_expect_success 'sparse-index is expanded and converted back' '
+	init_repos &&
+
+	(
+		GIT_TEST_SPARSE_INDEX=1 &&
+		export GIT_TEST_SPARSE_INDEX &&
+		GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
+			git -C sparse-index -c core.fsmonitor="" reset --hard &&
+		test_region index convert_to_sparse trace2.txt &&
+		test_region index ensure_full_index trace2.txt &&
+
+		rm trace2.txt &&
+		GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
+			git -C sparse-index -c core.fsmonitor="" status -uno &&
+		test_region index ensure_full_index trace2.txt
+	)
+'
+
 test_done