1 files changed, 10 insertions, 0 deletions
diff --git a/test/0x.js.ts b/test/0x.js.ts
index e4e3cc0a7..26e56a18b 100644
--- a/test/0x.js.ts
+++ b/test/0x.js.ts
@@ -86,4 +86,14 @@ describe('ZeroEx library', () => {
             expect(salt.lessThan(twoPow256)).to.be.true;
         });
     });
+    describe('#isValidOrderHash', () => {
+        it('returns false if the length is wrong', () => {
+            const isValid = ZeroEx.isValidOrderHash('0xdeadbeef');
+            expect(isValid).to.be.false;
+        });
+        it('returns true if order hash is correct', () => {
+            const isValid = ZeroEx.isValidOrderHash('0x' + Array(65).join('0'));
+            expect(isValid).to.be.true;
+        });
+    });
 });