ElasticSearch difficulties with edge ngram and synonym analyzer

example.sh

set -x

curl -XDELETE 'http://localhost:9200/twitter'

curl -XPUT 'http://localhost:9200/twitter' -d '{
  "index" : {
    "analysis" : {
      "analyzer" : {
        "test_analyzer" : {
          "type" : "custom",
          "tokenizer" : "standard",
          "filter" : ["standard", "lowercase", "ngrams", "synonym"]
        }
      },
      "filter" : {
        "synonym": {
          "type" : "synonym",
          "synonyms" : ["try => test"]
        },
        "ngrams" : {
          "side" : "front",
          "max_gram" : 255,
          "min_gram" : 1, "type" : "edgeNGram"
        }
      }
    }
  }
}'

curl -XPUT 'http://localhost:9200/twitter/tweet/_mapping' -d '{
  "tweet" : {
    "properties" : {
      "message" : {
        "type" : "string",
        "index" : "analyzed",
        "index_analyzer" : "test_analyzer",
        "search_analyzer" : "default"
      }
    }
  }
}'

curl -XPUT 'http://localhost:9200/twitter/tweet/1' -d '{
    "user" : "kimchy",
    "post_date" : "2009-11-15T14:12:12",
    "message" : "try Elastic Search"
}'

sleep 1

echo "'try' is a 3-gram that is also mapped to a synonym 'test'"

curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d ' {
  "query": {
    "text": {
      "message": {
        "query":"try"
      }
    }
  }
}'

curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d ' {
  "query": {
    "text": {
      "message": {
        "query":"tr"
      }
    }
  }
}'

curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d ' {
  "query": {
    "text": {
      "message": {
        "query":"test"
      }
    }
  }
}'

curl -XGET 'localhost:9200/twitter/_analyze?analyzer=test_analyzer' -d 'try'