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diff --git a/t/t1000-checkout-cache.sh b/t/t1000-checkout-cache.sh
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+#!/bin/sh
+#
+# Copyright (c) 2005 Junio C Hamano
+#
+
+test_description='git-checkout-cache test.
+
+This test registers the following filesystem structure in the
+cache:
+
+    path0       - a file
+    path1/file1 - a file in a directory
+
+And then tries to checkout in a work tree that has the following:
+
+    path0/file0 - a file in a directory
+    path1       - a file
+
+The git-checkout-cache command should fail when attempting to checkout
+path0, finding it is occupied by a directory, and path1/file1, finding
+path1 is occupied by a non-directory.  With "-f" flag, it should remove
+the conflicting paths and succeed.
+'
+. ./test-lib.sh
+
+date >path0
+mkdir path1
+date >path1/file1
+
+test_expect_success \
+    'git-update-cache --add various paths.' \
+    'git-update-cache --add path0 path1/file1'
+
+rm -fr path0 path1
+mkdir path0
+date >path0/file0
+date >path1
+
+test_expect_failure \
+    'git-checkout-cache without -f should fail on conflicting work tree.' \
+    'git-checkout-cache -a'
+
+test_expect_success \
+    'git-checkout-cache with -f should succeed.' \
+    'git-checkout-cache -f -a'
+
+if test -f path0 && test -d path1 && test -f path1/file1
+then
+	test_ok "checkout successful"
+else
+	test_failure "checkout failed"
+fi
+
+test_done
+
+