1 files changed, 58 insertions, 0 deletions
diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh
index a88a55c23b..d0a7ebfaff 100755
--- a/t/t7810-grep.sh
+++ b/t/t7810-grep.sh
@@ -1296,4 +1296,62 @@ test_expect_success 'grep --color -e A --and -e B -p with context' '
 	test_cmp expected actual
 '
 
+test_expect_success 'grep can find things only in the work tree' '
+	: >work-tree-only &&
+	git add work-tree-only &&
+	test_when_finished "git rm -f work-tree-only" &&
+	echo "find in work tree" >work-tree-only &&
+	git grep --quiet "find in work tree" &&
+	test_must_fail git grep --quiet --cached "find in work tree" &&
+	test_must_fail git grep --quiet "find in work tree" HEAD
+'
+
+test_expect_success 'grep can find things only in the work tree (i-t-a)' '
+	echo "intend to add this" >intend-to-add &&
+	git add -N intend-to-add &&
+	test_when_finished "git rm -f intend-to-add" &&
+	git grep --quiet "intend to add this" &&
+	test_must_fail git grep --quiet --cached "intend to add this" &&
+	test_must_fail git grep --quiet "intend to add this" HEAD
+'
+
+test_expect_success 'grep does not search work tree with assume unchanged' '
+	echo "intend to add this" >intend-to-add &&
+	git add -N intend-to-add &&
+	git update-index --assume-unchanged intend-to-add &&
+	test_when_finished "git rm -f intend-to-add" &&
+	test_must_fail git grep --quiet "intend to add this" &&
+	test_must_fail git grep --quiet --cached "intend to add this" &&
+	test_must_fail git grep --quiet "intend to add this" HEAD
+'
+
+test_expect_success 'grep can find things only in the index' '
+	echo "only in the index" >cache-this &&
+	git add cache-this &&
+	rm cache-this &&
+	test_when_finished "git rm --cached cache-this" &&
+	test_must_fail git grep --quiet "only in the index" &&
+	git grep --quiet --cached "only in the index" &&
+	test_must_fail git grep --quiet "only in the index" HEAD
+'
+
+test_expect_success 'grep does not report i-t-a with -L --cached' '
+	echo "intend to add this" >intend-to-add &&
+	git add -N intend-to-add &&
+	test_when_finished "git rm -f intend-to-add" &&
+	git ls-files | grep -v "^intend-to-add\$" >expected &&
+	git grep -L --cached "nonexistent_string" >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'grep does not report i-t-a and assume unchanged with -L' '
+	echo "intend to add this" >intend-to-add-assume-unchanged &&
+	git add -N intend-to-add-assume-unchanged &&
+	test_when_finished "git rm -f intend-to-add-assume-unchanged" &&
+	git update-index --assume-unchanged intend-to-add-assume-unchanged &&
+	git ls-files | grep -v "^intend-to-add-assume-unchanged\$" >expected &&
+	git grep -L "nonexistent_string" >actual &&
+	test_cmp expected actual
+'
+
 test_done