Require threshold and weights in signers settings (#909)

Fixes #908

test/api-test.js

@@ -561,12 +561,26 @@ describe('RippleAPI', function () {
   });
 
   it('prepareSettings - set signers', function () {
-    const settings = requests.prepareSettings.signers;
+    const settings = requests.prepareSettings.signers.normal;
     return this.api.prepareSettings(address, settings, instructions).then(
       _.partial(checkResult, responses.prepareSettings.signers,
         'prepare'));
   });
 
+  it('prepareSettings - signers no threshold', function () {
+    const settings = requests.prepareSettings.signers.noThreshold;
+    assert.throws(() => {
+      this.api.prepareSettings(address, settings, instructions);
+    }, this.api.errors.ValidationError);
+  });
+
+  it('prepareSettings - signers no weights', function () {
+    const settings = requests.prepareSettings.signers.noWeights;
+    assert.throws(() => {
+      this.api.prepareSettings(address, settings, instructions);
+    }, this.api.errors.ValidationError);
+  });
+
   it('prepareSettings - fee for multisign', function () {
     const localInstructions = _.defaults({
       signersCount: 4

test/fixtures/requests/index.js

@@ -22,7 +22,11 @@ module.exports = {
   },
   prepareSettings: {
     domain: require('./prepare-settings'),
-    signers: require('./prepare-settings-signers')
+    signers: {
+      normal: require('./prepare-settings-signers'),
+      noThreshold: require('./prepare-settings-signers-no-threshold'),
+      noWeights: require('./prepare-settings-signers-no-weights')
+    }
   },
   prepareEscrowCreation: {
     normal: require('./prepare-escrow-creation'),

test/fixtures/requests/prepare-settings-signers-no-threshold.json

@@ -0,0 +1,18 @@
+{
+  "signers": {
+    "weights": [
+      {
+        "address": "r9cZA1mLK5R5Am25ArfXFmqgNwjZgnfk59",
+        "weight": 1
+      },
+      {
+        "address": "rpZc4mVfWUif9CRoHRKKcmhu1nx2xktxBo",
+        "weight": 1
+      },
+      {
+        "address": "rwBYyfufTzk77zUSKEu4MvixfarC35av1J",
+        "weight": 1
+      }
+    ]
+  }
+}

test/fixtures/requests/prepare-settings-signers-no-weights.json

@@ -0,0 +1,5 @@
+{
+  "signers": {
+    "threshold": 2
+  }
+}