1 files changed, 16 insertions, 0 deletions
diff --git a/javascript/videojs/test/unit/utils/num.test.js b/javascript/videojs/test/unit/utils/num.test.js
new file mode 100644
index 0000000..bbc134d
--- /dev/null
+++ b/javascript/videojs/test/unit/utils/num.test.js
@@ -0,0 +1,16 @@
+/* eslint-env qunit */
+import * as Num from '../../../src/js/utils/num';
+
+QUnit.module('utils/num', function() {
+
+  QUnit.module('clamp');
+
+  QUnit.test('keep a number between min/max values', function(assert) {
+    assert.expect(5);
+    assert.strictEqual(Num.clamp(5, 1, 10), 5);
+    assert.strictEqual(Num.clamp(5, 1, 5), 5);
+    assert.strictEqual(Num.clamp(5, 1, 2), 2);
+    assert.strictEqual(Num.clamp(-1, 1, 10), 1);
+    assert.strictEqual(Num.clamp(NaN, 1, 10), 1);
+  });
+});