Truthy test (#37)

* Truthy test

* Update dev

package.json

@@ -29,8 +29,8 @@
     "test": "jest --coverage src"
   },
   "devDependencies": {
-    "@polkadot/api-jsonrpc": "^0.5.5",
-    "@polkadot/dev": "^0.12.4"
+    "@polkadot/api-jsonrpc": "^0.5.9",
+    "@polkadot/dev": "^0.12.5"
   },
   "dependencies": {
     "babel-runtime": "^6.26.0",

src/assert.js

@@ -8,17 +8,17 @@ const ExtError = require('./ext/error');
   @signature assert (test: boolean, message: string, code: number = ExtError.CODES.ASSERT, data: any): void
   @summary Checks for a valid test, if not ExtError is thrown.
   @description
-    Checks that `test` is a true value. If value is `false` (or `false-ish`), it throws an ExtError with the supplied `message` and an optional `code` and `data`. When `test` passes, `true` is returned.
+    Checks that `test` is a truthy value. If value is falsy (`null`, `undefined`, `false`, ...), it throws an ExtError with the supplied `message` and an optional `code` and `data`. When `test` passes, `true` is returned.
   @example
     const assert = require('@polkadot/util/assert');
 
-    assert(true === true, 'True should be true'); // true returned
-    assert(false === true, 'False should not be true'); // ExtError thrown
+    assert(true, 'True should be true'); // true returned
+    assert(false, 'False should not be true'); // ExtError thrown
 */
-module.exports = function assert (test: boolean, message: string, code: number = ExtError.CODES.ASSERT, data: any): boolean {
-  if (!test) {
-    throw new ExtError(message, code, data);
+module.exports = function assert (test: any, message: string, code: number = ExtError.CODES.ASSERT, data: any): boolean {
+  if (test) {
+    return true;
   }
 
-  return true;
+  throw new ExtError(message, code, data);
 };

yarn.lock

@@ -54,15 +54,15 @@
     lodash "^4.2.0"
     to-fast-properties "^2.0.0"
 
-"@polkadot/api-jsonrpc@^0.5.5":
-  version "0.5.5"
-  resolved "https://registry.yarnpkg.com/@polkadot/api-jsonrpc/-/api-jsonrpc-0.5.5.tgz#004ed19c2c5585230c8ec77caee78b5f6d61e62a"
+"@polkadot/api-jsonrpc@^0.5.9":
+  version "0.5.9"
+  resolved "https://registry.yarnpkg.com/@polkadot/api-jsonrpc/-/api-jsonrpc-0.5.9.tgz#615311c4f7c73b95cb52e910250ecc712f695732"
   dependencies:
     babel-runtime "^6.26.0"
 
-"@polkadot/dev@^0.12.4":
-  version "0.12.4"
-  resolved "https://registry.yarnpkg.com/@polkadot/dev/-/dev-0.12.4.tgz#5ce16c17bc29cf92793900a4096c7cc76cf2a0ac"
+"@polkadot/dev@^0.12.5":
+  version "0.12.5"
+  resolved "https://registry.yarnpkg.com/@polkadot/dev/-/dev-0.12.5.tgz#695238baf1f7fb6368b2191ca7bfa432d3e779ae"
   dependencies:
     babel-cli "^6.26.0"
     babel-core "^6.26.0"