Add addl test

tests/project-root1.sh

@@ -61,5 +61,18 @@ testNoramlizeDirOfFile001() {
     assertEquals "$expected" "$out/tests/.."
 }
 
+testWfRoot() {
+    expected=$(normalize_dir_of_file "$DIR/../install.sh")
+
+    dir=$(mktemp -d --tmpdir would-reformat-testProjectRoot001.XXXXXX)
+    cd "$dir" || exit
+    git init >/dev/null 2>&1
+    "$DIR"/../install.sh 2>&2 >/dev/null
+
+    got=$(wf_root $(pwd))
+
+    assertEquals "$expected" "$got"
+}
+
 # shellcheck disable=SC1091
 source shunit2