Simplify test with setUp

test/runner

@@ -1,5 +1,22 @@
 #!/usr/bin/env bash
 
+preserve-suite-bookend-functions() {
+  if type setUp &>/dev/null; then
+    # shellcheck disable=SC2034
+    eval "_suite_$(typeset -f setUp)"
+  else
+    _suite_setUp() { :; }
+  fi
+  if type tearDown &>/dev/null; then
+    # shellcheck disable=SC2034
+    eval "_suite_$(typeset -f tearDown)"
+  else
+    _suite_tearDown() { :; }
+  fi
+}
+
+preserve-suite-bookend-functions
+
 try() {
   output=$(mktemp -d)
   PATH="$fake_path:$PATH" "$@" > "$output/stdout" 2> "$output/stderr"
@@ -15,9 +32,11 @@ setUp() {
   export-repo-root
   move-to-working-directory
   create-fake-path
+  _suite_setUp
 }
 
 tearDown() {
+  _suite_tearDown
   [ "${_shunit_test_:=}" = '' ] && return 0
 
   clean-up-working-directory