public void MergeKey()
{
var map = new YamlMapping("existing", "value");
var mergeKey = new YamlScalar("!!merge", "<<");
map.Add(mergeKey, new YamlMapping("existing", "new value"));
map.OnLoaded();
Assert.AreEqual(1, map.Count);
Assert.IsTrue(map.ContainsKey("existing"));
Assert.AreEqual((YamlNode)"value", map["existing"]);
map.Add(mergeKey, new YamlMapping("not existing", "new value"));
map.OnLoaded();
Assert.AreEqual(2, map.Count);
Assert.IsTrue(map.ContainsKey("existing"));
Assert.AreEqual((YamlNode)"value", map["existing"]);
Assert.IsTrue(map.ContainsKey("not existing"));
Assert.AreEqual((YamlNode)"new value", map["not existing"]);
map.Add(mergeKey, new YamlMapping("key1", "value1", 2, 2, 3.0, 3.0));
map.OnLoaded();
Assert.AreEqual(5, map.Count);
Assert.IsTrue(map.ContainsKey("existing"));
Assert.AreEqual((YamlNode)"value", map["existing"]);
Assert.IsTrue(map.ContainsKey("not existing"));
Assert.AreEqual((YamlNode)"new value", map["not existing"]);
Assert.IsTrue(map.ContainsKey(2));
Assert.AreEqual((YamlNode)2, map[2]);
Assert.IsTrue(map.ContainsKey(3.0));
Assert.AreEqual((YamlNode)3.0, map[3.0]);
map = new YamlMapping(
"existing", "value",
mergeKey, new YamlMapping("not existing", "new value"));
map.OnLoaded();
Assert.AreEqual(2, map.Count);
Assert.IsTrue(map.ContainsKey("existing"));
Assert.AreEqual((YamlNode)"value", map["existing"]);
Assert.IsTrue(map.ContainsKey("not existing"));
Assert.AreEqual((YamlNode)"new value", map["not existing"]);
map = (YamlMapping)YamlNode.FromYaml(
"key1: value1\r\n" +
"key2: value2\r\n" +
"<<: \r\n" +
" key2: value2 modified\r\n" +
" key3: value3\r\n" +
" <<: \r\n" +
" key4: value4\r\n" +
" <<: value5\r\n"+
"key6: <<\r\n")[0];
Assert.AreEqual(
"%YAML 1.2\r\n" +
"---\r\n" +
"<<: value5\r\n" +
"key6: <<\r\n" +
"key3: value3\r\n" +
"key2: value2\r\n" +
"key4: value4\r\n" +
"key1: value1\r\n" +
"...\r\n",
map.ToYaml()
);
Assert.IsTrue(map.ContainsKey(mergeKey));
Assert.AreEqual(mergeKey, map["key6"]);
map.Remove(mergeKey);
map.Add(mergeKey, map); // recursive
map.OnLoaded();
Assert.AreEqual( // nothing has been changed
"%YAML 1.2\r\n" +
"---\r\n" +
"key6: <<\r\n" +
"key3: value3\r\n" +
"key2: value2\r\n" +
"key4: value4\r\n" +
"key1: value1\r\n" +
"...\r\n",
map.ToYaml()
);
}
