Add tests for NOTES_DIRECTORY configuration

Author: pimterry

test/test-config.bats

@@ -42,3 +42,21 @@ notes="./notes"
   assert_success
   assert_exists "$NOTES_DIRECTORY/test.txt"
 }
+
+@test "Configuration should be accepted if NOTES_DIR doesn't exist" {
+  mkdir -p $HOME/.config/notes
+  echo "NOTES_DIRECTORY=$NOTES_DIRECTORY/notesdir" > $HOME/.config/notes/config
+  run $notes new test
+
+  assert_success
+}
+
+@test "Configuration should be rejected if NOTES_DIR is a existing file" {
+  mkdir -p $HOME/.config/notes
+  touch $NOTES_DIRECTORY/testfile
+  echo "NOTES_DIRECTORY=$NOTES_DIRECTORY/testfile" > $HOME/.config/notes/config
+  run $notes new test
+
+  assert_failure
+  assert_line "Could not create directory $NOTES_DIRECTORY/testfile, please update your \$NOTES_DIRECTORY"
+}