Merge pull request #61 from bigchaindb/threshold-public-keys

Encode public_keys array for threshold conditions

src/transaction/makeOutput.js

@@ -10,10 +10,20 @@ export default function makeOutput(condition, amount = '1') {
     if (typeof amount !== 'string') {
         throw new TypeError('`amount` must be of type string')
     }
+    const publicKeys = []
+    const getPublicKeys = details => {
+        if (details.type === 'ed25519-sha-256') {
+            if (!publicKeys.includes(details.public_key)) {
+                publicKeys.push(details.public_key)
+            }
+        } else if (details.type === 'threshold-sha-256') {
+            details.subfulfillments.map(getPublicKeys)
+        }
+    }
+    getPublicKeys(condition.details)
     return {
-        'amount': amount,
         condition,
-        'public_keys': condition.details.hasOwnProperty('public_key') ?
+        'amount': amount,
-            [condition.details.public_key] : [],
+        'public_keys': publicKeys,
     }
 }

test/transaction/test_cryptoconditions.js

@@ -19,21 +19,34 @@ test('Ed25519 condition encoding', t => {
 
 test('Threshold condition encoding', t => {
     const publicKey = '4zvwRjXUKGfvwnParsHAS3HuSVzV5cA4McphgmoCtajS'
+    const ed25519 = Transaction.makeEd25519Condition(publicKey, false)
     const condition = Transaction.makeThresholdCondition(
-            1, [Transaction.makeEd25519Condition(publicKey, false)])
+            1, [ed25519, ed25519])
+    const output = Transaction.makeOutput(condition)
     const target = {
+        condition: {
             details: {
                 type: 'threshold-sha-256',
                 threshold: 1,
-            subfulfillments: [{
+                subfulfillments: [
+                    {
                         type: 'ed25519-sha-256',
                         public_key: publicKey,
                         signature: null,
-            }]
                     },
-        uri: 'ni:///sha-256;VBIfZSoBprUQy-LVNAzaZ2q-eyWbrcPKtBg1PuNXIpQ?fpt=threshold-sha-256&cost=132096&subtypes=ed25519-sha-256'
+                    {
+                        type: 'ed25519-sha-256',
+                        public_key: publicKey,
+                        signature: null,
                     }
-    t.deepEqual(target, condition)
+                ]
+            },
+            uri: 'ni:///sha-256;xTeBhQj7ae5Tym7cp83fwtkesQnhdwNwDEMIYwnf2g0?fpt=threshold-sha-256&cost=133120&subtypes=ed25519-sha-256',
+        },
+        amount: '1',
+        public_keys: [publicKey]
+    }
+    t.deepEqual(target, output)
 })
 
 

test/transaction/test_transaction.js

@@ -17,6 +17,7 @@ import {
 test('Create valid output with default amount', t => {
     const condition = {
         details: {
+            type: 'ed25519-sha-256',
             public_key: 'abc'
         }
     }
@@ -33,6 +34,7 @@ test('Create valid output with default amount', t => {
 test('Create valid output with custom amount', t => {
     const condition = {
         details: {
+            type: 'ed25519-sha-256',
             public_key: 'abc'
         }
     }