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dvonlehman · Mar 8, 2016 · 130ef18 · 130ef18
2 parents 3c5611d + 0aba472
commit 130ef18
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diff --git a/index.js b/index.js
@@ -44,6 +44,9 @@ assert.noDifferences = function(array, otherArray) {
   if (!(_.isArray(array) && _.isArray(otherArray)))
     throw new Error("Both arguments must be arrays");
 
+  if (array.length !== otherArray.length)
+    throw new assert.AssertionError({message: "Arrays are not the same length"});
+
   if (_.difference(array, otherArray).length > 0)
     throw new assert.AssertionError({message: "Arrays have differences"});
 };

diff --git a/test/assert.js b/test/assert.js
@@ -63,6 +63,10 @@ describe('dash-assert', function() {
     assert.throws(function() {
       assert.noDifferences([1, 2, 3], [2, 3, 4]);
     });
+
+    assert.throws(function() {
+      assert.noDifferences([], [1, 2, 3]);
+    });
   });
 
   it('hasIntersect', function() {