1 files changed, 82 insertions, 0 deletions
diff --git a/t/t4066-diff-emit-delay.sh b/t/t4066-diff-emit-delay.sh
new file mode 100755
index 0000000000..a1de63b77f
--- /dev/null
+++ b/t/t4066-diff-emit-delay.sh
@@ -0,0 +1,82 @@
+#!/bin/sh
+
+test_description='test combined/stat/moved interaction'
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+# This test covers a weird 3-way interaction between "--cc -p", which will run
+# the combined diff code, along with "--stat", which will be computed as a
+# first-parent stat during the combined diff, and "--color-moved", which
+# enables the emitted_symbols list to store the diff in memory.
+
+test_expect_success 'set up history with a merge' '
+	test_commit A &&
+	test_commit B &&
+	git checkout -b side HEAD^ &&
+	test_commit C &&
+	git merge -m M main &&
+	test_commit D
+'
+
+test_expect_success 'log --cc -p --stat --color-moved' '
+	cat >expect <<-EOF &&
+	commit D
+	---
+	 D.t | 1 +
+	 1 file changed, 1 insertion(+)
+
+	diff --git a/D.t b/D.t
+	new file mode 100644
+	index 0000000..$(git rev-parse --short D:D.t)
+	--- /dev/null
+	+++ b/D.t
+	@@ -0,0 +1 @@
+	+D
+	commit M
+
+	 B.t | 1 +
+	 1 file changed, 1 insertion(+)
+	commit C
+	---
+	 C.t | 1 +
+	 1 file changed, 1 insertion(+)
+
+	diff --git a/C.t b/C.t
+	new file mode 100644
+	index 0000000..$(git rev-parse --short C:C.t)
+	--- /dev/null
+	+++ b/C.t
+	@@ -0,0 +1 @@
+	+C
+	commit B
+	---
+	 B.t | 1 +
+	 1 file changed, 1 insertion(+)
+
+	diff --git a/B.t b/B.t
+	new file mode 100644
+	index 0000000..$(git rev-parse --short B:B.t)
+	--- /dev/null
+	+++ b/B.t
+	@@ -0,0 +1 @@
+	+B
+	commit A
+	---
+	 A.t | 1 +
+	 1 file changed, 1 insertion(+)
+
+	diff --git a/A.t b/A.t
+	new file mode 100644
+	index 0000000..$(git rev-parse --short A:A.t)
+	--- /dev/null
+	+++ b/A.t
+	@@ -0,0 +1 @@
+	+A
+	EOF
+	git log --format="commit %s" --cc -p --stat --color-moved >actual &&
+	test_cmp expect actual
+'
+
+test_done