when decoded as
- <Buffer> when decoded as <string> <assertion?>
Decode a Buffer, then delegate the return value to another assertion. Supports the standard node.js Buffer encodings.
expect(new Buffer([0xe2, 0x98, 0xba]), 'when decoded as', 'utf-8', 'to equal', '☺');
In case of a failing expectation you get the following output:
expect(new Buffer([0xe2, 0x98, 0xba]), 'when decoded as', 'utf-8', 'to equal', 'happy face');
expected Buffer([0xE2, 0x98, 0xBA]) when decoded as 'utf-8' to equal 'happy face'
-
☺
+
happy face
If you don't provide an assertion to delegate to, the decoded value will be provided as the fulfillment value of the promise:
return expect(new Buffer([0xe2, 0x98, 0xba]), 'decoded as', 'utf-8').then(function (result) {
expect(result, 'to equal', '☺');
});