Re: [PATCH v3 01/14] t3705: test that 'sparse_entry' is unstaged

From: Derrick Stolee <redacted>

The tests in t3705-add-sparse-checkout.sh check to see how 'git add'
behaves with paths outside the sparse-checkout definition. These
currently check to see if a given warning is present but not that the
index is not updated with the sparse entries. Add a new
'test_sparse_entry_unstaged' helper to be sure 'git add' is behaving
correctly.

We need to modify setup_sparse_entry to actually commit the sparse_entry
file so it exists at HEAD and as an entry in the index, but its exact
contents are not staged in the index.

Signed-off-by: Derrick Stolee <redacted>
---
 t/t3705-add-sparse-checkout.sh | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/t/t3705-add-sparse-checkout.sh b/t/t3705-add-sparse-checkout.sh
index 2b1fd0d0eef..e202a2ff74a 100755
--- a/t/t3705-add-sparse-checkout.sh
+++ b/t/t3705-add-sparse-checkout.sh

@@ -19,6 +19,7 @@ setup_sparse_entry () {
 	fi &&
 	git add sparse_entry &&
 	git update-index --skip-worktree sparse_entry &&
+	git commit --allow-empty -m "ensure sparse_entry exists at HEAD" &&
 	SPARSE_ENTRY_BLOB=$(git rev-parse :sparse_entry)
 }
 

@@ -36,6 +37,11 @@ setup_gitignore () {
 	EOF
 }
 
+test_sparse_entry_unstaged () {
+	git status --porcelain >actual &&
+	! grep "^[MDARCU][M ] sparse_entry\$" actual