t7400: test failure to add submodule in tracked path

Add a test to ensure failure on adding a submodule to a directory with tracked contents in the index. As we are going to refactor and port to C some parts of `git submodule add`, let's add a test to help ensure no regression is introduced. Signed-off-by: Atharva Raykar <raykar.ath@gmail.com> Mentored-by: Christian Couder <christian.couder@gmail.com> Based-on-patch-by: Shourya Shukla <periperidip@gmail.com> Mentored-by: Shourya Shukla <periperidip@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Atharva Raykar committed Jul 6, 2021 at 23:49 UTC 84069fcc140480fb76dc204ebce7819c2c87ec7c
1 file changed +11
t/t7400-submodule-basic.sh
+11
@@ -196,6 +196,17 @@ test_expect_success 'submodule add to .gitignored path with --force' '
196 )
197 '
198
199 +test_expect_success 'submodule add to path with tracked content fails' '
200 + (
201 + cd addtest &&
202 + echo "'\''dir-tracked'\'' already exists in the index" >expect &&
203 + mkdir dir-tracked &&
204 + test_commit foo dir-tracked/bar &&
205 + test_must_fail git submodule add "$submodurl" dir-tracked >actual 2>&1 &&
206 + test_cmp expect actual
207 + )
208 +'
209 +
210 test_expect_success 'submodule add to reconfigure existing submodule with --force' '
211 (
212 cd addtest-ignore &&