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-rwxr-xr-xt/t4064-diff-oidfind.sh55
1 files changed, 55 insertions, 0 deletions
diff --git a/t/t4064-diff-oidfind.sh b/t/t4064-diff-oidfind.sh
index 3bdf317af8..6d8c8986fc 100755
--- a/t/t4064-diff-oidfind.sh
+++ b/t/t4064-diff-oidfind.sh
@@ -65,4 +65,59 @@ test_expect_success 'find a submodule' '
test_cmp expect actual
'
+test_expect_success 'set up merge tests' '
+ test_commit base &&
+
+ git checkout -b boring base^ &&
+ echo boring >file &&
+ git add file &&
+ git commit -m boring &&
+
+ git checkout -b interesting base^ &&
+ echo interesting >file &&
+ git add file &&
+ git commit -m interesting &&
+
+ blob=$(git rev-parse interesting:file)
+'
+
+test_expect_success 'detect merge which introduces blob' '
+ git checkout -B merge base &&
+ git merge --no-commit boring &&
+ echo interesting >file &&
+ git commit -am "introduce blob" &&
+ git diff-tree --format=%s --find-object=$blob -c --name-status HEAD >actual &&
+ cat >expect <<-\EOF &&
+ introduce blob
+
+ AM file
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'detect merge which removes blob' '
+ git checkout -B merge interesting &&
+ git merge --no-commit base &&
+ echo boring >file &&
+ git commit -am "remove blob" &&
+ git diff-tree --format=%s --find-object=$blob -c --name-status HEAD >actual &&
+ cat >expect <<-\EOF &&
+ remove blob
+
+ MA file
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'do not detect merge that does not touch blob' '
+ git checkout -B merge interesting &&
+ git merge -m "untouched blob" base &&
+ git diff-tree --format=%s --find-object=$blob -c --name-status HEAD >actual &&
+ cat >expect <<-\EOF &&
+ untouched blob
+
+ EOF
+ test_cmp expect actual
+'
+
test_done