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-rwxr-xr-xt/perf/p4001-diff-no-index.sh22
-rwxr-xr-xt/t4053-diff-no-index.sh15
2 files changed, 37 insertions, 0 deletions
diff --git a/t/perf/p4001-diff-no-index.sh b/t/perf/p4001-diff-no-index.sh
new file mode 100755
index 0000000000..683be6984f
--- /dev/null
+++ b/t/perf/p4001-diff-no-index.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+test_description="Test diff --no-index performance"
+
+. ./perf-lib.sh
+
+test_perf_large_repo
+test_checkout_worktree
+
+file1=$(git ls-files | tail -n 2 | head -1)
+file2=$(git ls-files | tail -n 1 | head -1)
+
+test_expect_success "empty files, so they take no time to diff" "
+ echo >$file1 &&
+ echo >$file2
+"
+
+test_perf "diff --no-index" "
+ git diff --no-index $file1 $file2 >/dev/null
+"
+
+test_done
diff --git a/t/t4053-diff-no-index.sh b/t/t4053-diff-no-index.sh
index 979e98398b..077c775e77 100755
--- a/t/t4053-diff-no-index.sh
+++ b/t/t4053-diff-no-index.sh
@@ -29,4 +29,19 @@ test_expect_success 'git diff --no-index relative path outside repo' '
)
'
+test_expect_success 'git diff --no-index with broken index' '
+ (
+ cd repo &&
+ echo broken >.git/index &&
+ git diff --no-index a ../non/git/a
+ )
+'
+
+test_expect_success 'git diff outside repo with broken index' '
+ (
+ cd repo &&
+ git diff ../non/git/a ../non/git/b
+ )
+'
+
test_done