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Filter insufficient source funds paths from pathfind results

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When pathfinding with source amount, we need to filter out paths where source
amount is not equal to the specified source amount. This is due to the behavior
of rippled when specifying a source amount during pathfinding.

Example:

 {
  "command": "ripple_path_find",
  "source_account": "rhFQQ4ATC6MDF9ghTq3qAoCsGbGtjnhcXF",
  "destination_account": "rp91GUd5R3Rk3ipqW7XBdtrUJcX8epzGyb",
  "destination_amount": {
    "currency": "EUR",
    "issuer": "rp91GUd5R3Rk3ipqW7XBdtrUJcX8epzGyb",
    "value": -1
  },
  "send_max": {
    "currency": "USD",
    "issuer": "rhFQQ4ATC6MDF9ghTq3qAoCsGbGtjnhcXF",
    "value": "1234567891"
  },
  "id": 2
}
{
  "id": 2,
  "result": {
    "alternatives": [
      {
        "destination_amount": {
          "currency": "EUR",
          "issuer": "rp91GUd5R3Rk3ipqW7XBdtrUJcX8epzGyb",
          "value": "3999889.62127857"
        },
        "paths_canonical": [],
        "paths_computed": [
          [
            {
              "account": "rcsxQxEqU2qquAKp3tBUJy8Z2t19ioQPJ",
              "type": 1,
              "type_hex": "0000000000000001"
            },
            {
              "currency": "EUR",
              "issuer": "rp91GUd5R3Rk3ipqW7XBdtrUJcX8epzGyb",
              "type": 48,
              "type_hex": "0000000000000030"
            }
          ]
        ],
        "source_amount": {
          "currency": "USD",
          "issuer": "rhFQQ4ATC6MDF9ghTq3qAoCsGbGtjnhcXF",
          "value": "4170759.906037564"
        }
      }
    ],
    "destination_account": "rp91GUd5R3Rk3ipqW7XBdtrUJcX8epzGyb",
    "destination_amount": {
      "currency": "EUR",
      "issuer": "rp91GUd5R3Rk3ipqW7XBdtrUJcX8epzGyb",
      "value": "-1"
    },
    "destination_currencies": [
      "EUR",
      "XRP"
    ],
    "full_reply": true,
    "id": 2,
    "source_account": "rhFQQ4ATC6MDF9ghTq3qAoCsGbGtjnhcXF",
    "status": "success"
  },
  "status": "success",
  "type": "response"
}
This commit is contained in:
Alan Cohen
2016-01-15 13:03:42 -08:00
parent 0d6aaee12a
commit 6b8cd6151d
8 changed files with 143 additions and 3 deletions
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2
test/mock-rippled.js
View File

@@ -323,6 +323,8 @@ module.exports = function(port) {
}
if (request.source_account === addresses.NOTFOUND) {
response = createResponse(request, fixtures.path_find.srcActNotFound);
} else if (request.source_account === addresses.SOURCE_LOW_FUNDS) {
response = createResponse(request, fixtures.path_find.sourceAmountLow);
} else if (request.source_account === addresses.OTHER_ACCOUNT) {
response = createResponse(request, fixtures.path_find.sendUSD);
} else if (request.source_account === addresses.THIRD_ACCOUNT) {