If you have something like

x = new Float32Array(10);
x[0] = 1;

should(x, "Expected difference").beConstantValueOf(0)

Audit prints out some message like

FAIL X Expected 0 for all values but found 1 unexpected values: 
	Index	Actual
	[0]	1

Note that the string description ("foobar x") isn't printed anywhere.  It would be useful if it were to help identify which of many beConstantValueOf test failed.

Thus, maybe somethlng like

FAIL X Expected difference expected to be 0 for all values but found 1 unexpected values: 

That makes it easier to determine what was expected to be constant.

 

If you have something like

x = new Float32Array(10);
x[0] = 1;

should(x, "Expected difference").beConstantValueOf(0)

Audit prints out some message like

FAIL X Expected 0 for all values but found 1 unexpected values: 
	Index	Actual
	[0]	1

Note that the string description ("Expected difference") isn't printed anywhere.  It would be useful if it were to help identify which of many beConstantValueOf test failed.

Thus, maybe somethlng like

FAIL X Expected difference expected to be 0 for all values but found 1 unexpected values: 

That makes it easier to determine what was expected to be constant.