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-rw-r--r--tests/posix/exec_substring_plus.out19
-rw-r--r--tests/posix/exec_substring_plus.sh14
2 files changed, 33 insertions, 0 deletions
diff --git a/tests/posix/exec_substring_plus.out b/tests/posix/exec_substring_plus.out
new file mode 100644
index 0000000..a7ccfe4
--- /dev/null
+++ b/tests/posix/exec_substring_plus.out
@@ -0,0 +1,19 @@
+basic
+basic/a
+basic/b
+basic/c
+basic/c/d
+basic/e
+basic/e/f
+basic/g
+basic/g/h
+basic/i
+basic/j
+basic/j/foo
+basic/k
+basic/k/foo
+basic/k/foo/bar
+basic/l
+basic/l/foo
+basic/l/foo/bar
+basic/l/foo/bar/baz
diff --git a/tests/posix/exec_substring_plus.sh b/tests/posix/exec_substring_plus.sh
new file mode 100644
index 0000000..90309b0
--- /dev/null
+++ b/tests/posix/exec_substring_plus.sh
@@ -0,0 +1,14 @@
+# https://pubs.opengroup.org/onlinepubs/9799919799/utilities/find.html
+#
+# Only a <plus-sign> that immediately follows an argument containing only
+# the two characters "{}" shall punctuate the end of the primary expression.
+# Other uses of the <plus-sign> shall not be treated as special.
+# ...
+# If a utility_name or argument string contains the two characters "{}", but
+# not just the two characters "{}", it is implementation-defined whether
+# find replaces those two characters or uses the string without change.
+
+invoke_bfs basic -exec printf '%s %s %s %s\n' {} {}+ +{} + \; | sed 's/ .*//' >"$OUT"
+sort_output
+diff_output
+