browser.assert.ok(typeofhash.value==='string','type of hash.value must be String')
browser.assert.ok(typeofsignature.value==='string','type of signature.value must be String')
// we check here that the input is strictly "test message"
browser.assert.equal(signature.value,'0xaa8873317ebf3f34fbcc0eab3e9808d851352674c28a3d6b88dc84db6e10fc183a45bcec983a105964a13b54f18e43eceae29d982bf379826fb7ecfe0d42c6ba1b','signature should be tied to the input "test message"')