diff --git a/lib/utils/text-utils.js b/lib/utils/text-utils.js
--- a/lib/utils/text-utils.js
+++ b/lib/utils/text-utils.js
@@ -4,7 +4,7 @@
   nouns: $ReadOnlyArray<string>,
   maxNumberOfNouns: number = 3,
 ): string {
-  if (nouns.length === 0) {
+  if (nouns.length === 0 || maxNumberOfNouns <= 0) {
     return '';
   } else if (nouns.length === 1) {
     return nouns[0];
diff --git a/lib/utils/text-utils.test.js b/lib/utils/text-utils.test.js
new file mode 100644
--- /dev/null
+++ b/lib/utils/text-utils.test.js
@@ -0,0 +1,24 @@
+// @flow
+
+import { pluralize } from './text-utils.js';
+
+test('pluralize', () => {
+  expect(pluralize([])).toBe('');
+
+  expect(pluralize(['a'])).toBe('a');
+  expect(pluralize(['a', 'b'])).toBe('a and b');
+  expect(pluralize(['a', 'b', 'c'])).toBe('a, b, and c');
+  expect(pluralize(['a', 'b', 'c', 'd'])).toBe('a, b, and 2 others');
+
+  expect(pluralize(['cat', 'dog', 'sheep'], 3)).toBe('cat, dog, and sheep');
+  expect(pluralize(['cat', 'dog', 'sheep'], 2)).toBe('cat and 2 others');
+  expect(pluralize(['cat', 'dog', 'sheep'], 1)).toBe('3 users');
+  expect(pluralize(['cat', 'dog', 'sheep'], 0)).toBe('');
+
+  expect(pluralize(['cat', 'dog', 'sheep', 'moose'])).toBe(
+    'cat, dog, and 2 others',
+  );
+  expect(pluralize(['cat', 'dog', 'sheep', 'moose'], 5)).toBe(
+    'cat, dog, sheep, and moose',
+  );
+});