testingPairs for inetrnal testing (#118)

packages/util-keyring/src/testing.js

@@ -3,11 +3,7 @@
 // of the ISC license. See the LICENSE file for details.
 // @flow
 
-import type { KeyringPair } from './types';
-
-type TestKeyring = {
-  [string]: KeyringPair
-};
+import type { KeyringInstance } from './types';
 
 const hexToU8a = require('@polkadot/util/hex/toU8a');
 const u8aFromString = require('@polkadot/util/u8a/fromString');
@@ -15,11 +11,7 @@ const u8aFromString = require('@polkadot/util/u8a/fromString');
 const createKeyring = require('./index');
 
 function padSeed (seed: string): Uint8Array {
-  while (seed.length < 32) {
-    seed += ' ';
-  }
-
-  return u8aFromString(seed);
+  return u8aFromString(seed.padEnd(32, ' '));
 }
 
 const SEEDS = {
@@ -41,14 +33,14 @@ const SEEDS = {
     hexToU8a('0x9d61b19deffd5a60ba844af492ec2cc44449c5697b326919703bac031cae7f60')
 };
 
-module.exports = function testKeyring (): TestKeyring {
+module.exports = function testKeyring (): KeyringInstance {
   const keyring = createKeyring();
 
-  return Object
-    .keys(SEEDS)
-    .reduce((result, key) => {
-      result[key] = keyring.addFromSeed(SEEDS[key]);
+  Object.keys(SEEDS).forEach((name) => {
+    keyring
+      .addFromSeed(SEEDS[name])
+      .setMeta({ name });
+  });
 
-      return result;
-    }, {});
+  return keyring;
 };