Throw aggregate error for npmName.many()

index.js

@@ -7,6 +7,7 @@ const registryAuthToken = require('registry-auth-token');
 const zip = require('lodash.zip');
 const validate = require('validate-npm-package-name');
 const organizationRegex = require('org-regex')({exact: true});
+const pMap = require('p-map');
 
 class InvalidNameError extends Error {}
 
@@ -90,7 +91,7 @@ module.exports.many = async (names, options = {}) => {
 		throw new Error('The `registryUrl` option must be a valid string URL');
 	}
 
-	const result = await Promise.all(names.map(name => request(name, options)));
+	const result = await pMap(names, name => request(name, options), {stopOnError: false});
 	return new Map(zip(names, result));
 };
 

package.json

@@ -35,12 +35,14 @@
 		"is-scoped": "^2.1.0",
 		"is-url-superb": "^3.0.0",
 		"lodash.zip": "^4.2.0",
+		"org-regex": "^1.0.0",
+		"p-map": "^3.0.0",
 		"registry-auth-token": "^4.0.0",
 		"registry-url": "^5.1.0",
-		"validate-npm-package-name": "^3.0.0",
-		"org-regex": "^1.0.0"
+		"validate-npm-package-name": "^3.0.0"
 	},
 	"devDependencies": {
+		"aggregate-error": "^3.0.1",
 		"ava": "^2.1.0",
 		"tsd": "^0.7.1",
 		"unique-string": "^2.0.0",

test.js

@@ -1,5 +1,6 @@
 import test from 'ava';
 import uniqueString from 'unique-string';
+import AggregateError from 'aggregate-error';
 import npmName from '.';
 
 const registryUrl = 'https://registry.yarnpkg.com/';
@@ -67,3 +68,19 @@ test('throws when package name is invalid', async t => {
 - name cannot start with an underscore`
 	});
 });
+
+test('should return an iterable error capturing multiple errors when appropriate', async t => {
+	const name1 = 'chalk'; // False
+	const name2 = uniqueString(); // True
+	const name3 = '_ABC'; // Error
+	const name4 = 'CapitalsAreBad'; // Error
+
+	const aggregateError = await t.throwsAsync(npmName.many([name1, name2, name3, name4]), {
+		instanceOf: AggregateError
+	});
+
+	const errors = [...aggregateError];
+	t.is(errors.length, 2);
+	t.regex(errors[0].message, /Invalid package name: _ABC/);
+	t.regex(errors[1].message, /Invalid package name: CapitalsAreBad/);
+});