t4140: test apply --intent-to-add interactions

Test that applying a new file creation patch with --intent-to-add to an existing index does not modify the index outside adding the correct intents-to-add, and that applying a patch with both modifications and new file creations with --intent-to-add correctly only adds intents-to-add to the index. Signed-off-by: Raymond E. Pasco <ray@ameretat.dev> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Raymond E. Pasco committed Jul 7, 2025 at 08:12 UTC a4c969aa0d9c98ed29ea495fa0bae61bfbc713fe
1 file changed +30 -1
t/t4140-apply-ita.sh
+30 -1
@@ -7,6 +7,10 @@ test_description='git apply of i-t-a file'
7 test_expect_success setup '
8 test_write_lines 1 2 3 4 5 >blueprint &&
9
10 + cat blueprint >committed-file &&
11 + git add committed-file &&
12 + git commit -m "commit" &&
13 +
14 cat blueprint >test-file &&
15 git add -N test-file &&
16 git diff >creation-patch &&
@@ -14,7 +18,14 @@ test_expect_success setup '
18
19 rm -f test-file &&
20 git diff >deletion-patch &&
17 - grep "deleted file mode 100644" deletion-patch
21 + grep "deleted file mode 100644" deletion-patch &&
22 +
23 + git rm -f test-file &&
24 + test_write_lines 6 >>committed-file &&
25 + cat blueprint >test-file &&
26 + git add -N test-file &&
27 + git diff >complex-patch &&
28 + git restore committed-file
29 '
30
31 test_expect_success 'apply creation patch to ita path (--cached)' '
@@ -53,4 +64,22 @@ test_expect_success 'apply deletion patch to ita path (--index)' '
64 git ls-files --stage --error-unmatch test-file
65 '
66
67 +test_expect_success 'apply creation patch to existing index with -N' '
68 + git rm -f test-file &&
69 + cat blueprint >index-file &&
70 + git add index-file &&
71 + git apply -N creation-patch &&
72 +
73 + git ls-files --stage --error-unmatch index-file &&
74 + git ls-files --stage --error-unmatch test-file
75 +'
76 +
77 +test_expect_success 'apply complex patch with -N' '
78 + git rm -f test-file index-file &&
79 + git apply -N complex-patch &&
80 +
81 + git ls-files --stage --error-unmatch test-file &&
82 + git diff | grep "a/committed-file"
83 +'
84 +
85 test_done