diff: mode-only change should be noticed by "--patch -w --exit-code"

[thirdparty/git.git] / t / t4015-diff-whitespace.sh

diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index f3e20dd5bba202ba5d5589e897d753672096b866..02731dccb9741e625a9e263e4f158298681c92c2 100755 (executable)
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 #
 # Copyright (c) 2006 Johannes E. Schindelin
-#
+# Copyright (c) 2023 Google LLC
 
 test_description='Test special whitespace in diff engine.
 
@@ -11,6 +11,39 @@ TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-diff.sh
 
+for opts in --patch --quiet -s
+do
+
+       test_expect_success "status with $opts (different)" '
+               echo foo >x &&
+               git add x &&
+               echo bar >x &&
+               test_expect_code 1 git diff -w $opts --exit-code x
+       '
+
+       test_expect_success POSIXPERM "status with $opts (mode differs)" '
+               test_when_finished "git update-index --chmod=-x x" &&
+               echo foo >x &&
+               git add x &&
+               git update-index --chmod=+x x &&
+               test_expect_code 1 git diff -w $opts --exit-code x
+       '
+
+       test_expect_success "status with $opts (removing an empty file)" '
+               : >x &&
+               git add x &&
+               rm x &&
+               test_expect_code 1 git diff -w $opts --exit-code -- x
+       '
+
+       test_expect_success "status with $opts (different but equivalent)" '
+               echo foo >x &&
+               git add x &&
+               echo " foo" >x &&
+               git diff -w $opts --exit-code x
+       '
+done
+
 test_expect_success "Ray Lehtiniemi's example" '
        cat <<-\EOF >x &&
        do {