/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include <string_view>
#include <unordered_map>

#include "unit/Catch.h"
#include "unit/TestBase.h"
#include "unit/TestUtils.h"
#include "wel/StringSplitter.h"

namespace wel = org::apache::nifi::minifi::wel;

TEST_CASE("splitCommaSeparatedKeyValuePairs works") {
  static constexpr auto test = [](std::string_view input, std::unordered_map<std::string_view, std::string_view> expected) {
    std::unordered_map<std::string_view, std::string_view> output;
    wel::splitCommaSeparatedKeyValuePairs(input, [&output](std::string_view key, std::string_view value) {
      output[key] = value;
    });
    CHECK(output == expected);
  };

  test("", {});
  test("foo", {{"foo", ""}});
  test("foo =    ", {{"foo", ""}});
  test("foo = bar", {{"foo", "bar"}});
  test("foo == bar", {});  // more than two parts after splitting at '='
  test("foo != bar", {{"foo !", "bar"}});
  test("some long key = a long value", {{"some long key", "a long value"}});
  test("all the leaves \t= brown ,\n and the sky=gray, \r\n I've been for a walk , on a winter's = day",
       {{"all the leaves", "brown"}, {"and the sky", "gray"}, {"I've been for a walk", ""}, {"on a winter's", "day"}});
}