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How do I seed a random class to avoid getting duplicate random values [duplicate]
...tes a sequence of numbers that adequately satisfies statistical randomness tests. Since the algorithm is deterministic, the algorithm will always generate the exact same sequence of numbers if it's initialized with the same seed. That's why system time (something that changes all the time) is usuall...
How do you debug a regex? [closed]
...ly). As a consequence the display is unusable. In addition, the JavaScript testing hangs the browser with a lot of test cases, for every edition (not only once when fired). Finally, some of the proposed regexes are bugged and do not match as intended.
– 7heo.tk
...
Asserting successive calls to a mock method
...ut they must
all appear in mock_calls.
Example:
>>> from unittest.mock import call, Mock
>>> mock = Mock(return_value=None)
>>> mock(1)
>>> mock(2)
>>> mock(3)
>>> mock(4)
>>> calls = [call(2), call(3)]
>>> mock.assert_has_...
Collisions when generating UUIDs in JavaScript?
... the first report I've seen of anyone getting collisions.
node-uuid has a test harness that you can use to test the distribution of hex digits in that code. If that looks okay then it's not Math.random(), so then try substituting the UUID implementation you're using into the uuid() method there an...
What's wrong with foreign keys?
... always use foreign keys now. My answer to the objection "they complicated testing" is "write your unit tests so they don't need the database at all. Any tests that use the database should use it properly, and that includes foreign keys. If the setup is painful, find a less painful way to do the set...
Why doesn't Internet Explorer 11 honour conditional comments even when emulating Internet Explorer 8
...eleased last week.
That was posted on April 22, 2014.
In running a few tests myself it does appear that this was fixed and all is running smoothly again for testing the most amazing browser ever produced...Internet Explorer!
...
Detecting a mobile browser
...(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|...
How to find all positions of the maximum value in a list?
...iciencies pointed out by @John Machin. For (2) I attempted to optimize the tests based on guesstimated probability of occurrence of each condition and inferences allowed from predecessors. It was a little tricky figuring out the proper initialization values for max_val and max_indices which worked f...
Avoid trailing zeroes in printf()
...ld widths, then format the number using a format string based on that. The test harness main() shows this in action:
40.00000000000000000000 -> 40.000
359.01335000000000263753 -> 359.013
-359.00999000000001615263 -> -359.010
359.00999999999999090505 -> 359.010
3.01357000000000008...
Exact time measurement for performance testing [duplicate]
...ong seed = Environment.TickCount;
//use the second Core/Processor for the test
Process.GetCurrentProcess().ProcessorAffinity = new IntPtr(2);
//prevent "Normal" Processes from interrupting Threads
Process.GetCurrentProcess().PriorityClass = ProcessPriorityClass.High;
//prevent "Normal" Threads fr...