Daniel Evans

Scientific software developer, former astronomer, and railway operations geek

[Daniel Evans @DanielWithCats]

@davefarley77 I'd notice if the style on your videos was different, but wouldn't know it was your video just from the thumbnail style, if that makes sense!

Some text with the title and a few logos/icons/cartoons is >50% of the results for "test driven development" on YT when I search.

[Daniel Evans @DanielWithCats]

@davefarley77 "Face on video thumbnail", that should be. Showing your face in the video itself isn't such a crime!

[Daniel Evans @DanielWithCats]

@davefarley77 I'm torn! I generally dislike the trend of "face on video", but here it's the difference between "Ah, Dave's published a new video!" and "I have no idea which channel this is from at a glance".

I wonder if a larger CD logo to make up for it would be an idea?

[Daniel Evans @DanielWithCats]

@trisha_gee I went for writing tests, both as a "I spend most of my time doing this", but also as it's the hardest part.

I often work with image data, and designing a test that asserts *something* useful, but isn't just "assert image is identical to an earlier run", is quite challenging.

[Daniel Evans @DanielWithCats]

@trisha_gee My answer would differ quite a bit depending on what cycle you're thinking of.
"Run tests locally" cycle is >75% and seconds.
"Run tests on CI infra" is ~50% and a couple of minutes.
"Run tests, build, and deploy" is <25% and up to 20 mins (which is what I answered for).

[Artur Margonari @arturmargonari]

I created this short video to give an idea of what it is to go to @Agileonthebeach :)

#agile #aotb2023 #publicspeaking #passion

[Daniel Evans @DanielWithCats]

@SteveSmith_Tech @Agileonthebeach Whereabouts will I find you cool cats? Hopping on at Plymouth (after my 6-hour stint from Leeds!).

[Daniel Evans @DanielWithCats]

@oejwing "HazelFLOOD is designed to answer ... what will happen on site when [a] storm of intensity X occurs?"

So... they're selling flood maps for individual events (that the customer specifies?) at individual sites? How terribly innovative...

[Daniel Evans @DanielWithCats]

@whisperity @GergelyOrosz With the differences that:
1. I'm more confident that MS/Google know how to handle that security
2. Also more confident they wouldn't consider a lack of security a trivial "tech debt" issue
3. They are likely audited to widely-accepted standards, which some customers will require

[Daniel Evans @DanielWithCats]

@pvukovic @GergelyOrosz Presumably, they're currently saying "we don't store your data", and so have absolutely no stance on privacy of stored data or your rights.

But how can you be convinced that they do store nothing, and so be convinced their lack of security for stored data isn't a problem?

[Daniel Evans @DanielWithCats]

Today's the day we go to space!

(Third up on the left)

[Lukas C. H. @GewoonLukas_]

Now that SpaceX has published the full manifest, here's the final version with the final satellites now also identified: https://t.co/9bn8zXvury

[Daniel Evans @DanielWithCats]

@davefarley77 @NotMyAgile Oh, it's a painfully good satire account. It still occasionally catches me out after months of following it!

[Daniel Evans @DanielWithCats]

@davefarley77 @NotMyAgile Looking at the very serious replies from yourself and other big names... we are all aware this is a (brilliant) satire account, right?

[Daniel Evans @DanielWithCats]

@GeoSkeptic @STACspec @esa Having got in touch with the presenter, "by the end of June", and it'll be announced at https://t.co/x4maWXA68p

[Daniel Evans @DanielWithCats]

@GeoSkeptic @STACspec @esa Assuming it's not live yet (Google can't find it!), do you/@esa know where news of its release would be announced?

[Daniel Evans @DanielWithCats]

@GergelyOrosz From what I've heard from Dutch rail employees (as of yesterday), it sounds as if even internally they understand very little about the underlying cause. About the best they could do is "We are still investigating the problem" style updates.

[James O'Connor @James_O_Connor1]

UK based EO/geo folks - we're hosting a STAC meetup at SatVu's offices - come along! Great views, great company, great metadata discussions #STAC https://t.co/H4q0W9ciDF

[Daniel Evans @DanielWithCats]

@jesusmnavarrol @tottinge Not a big issue though. Very easy to design the majority of tests to use in-memory data by isolating infrastructure from logic, and the library I'm often working with for big number crunching (GDAL) actually has in-built support for its own in-memory filesystem.

[Daniel Evans @DanielWithCats]

@jesusmnavarrol @tottinge I've briefly looked at that in the past, but found:
1. A solution on one OS is unlikely to work on all
2. All solutions seemed to require admin powers, at best requiring a password prompt to run tests, and at worst impossible (for orgs where admin power isn't universal)

[Daniel Evans @DanielWithCats]

@tottinge I guess that really does date me! The idea that you'd have no filesystem tests *at all* was so alien that I would never think of it, so I assumed you meant "just use the filesystem for all tests, it's fine".

[Daniel Evans @DanielWithCats]

@tottinge Ha, I was thinking in Python terms too - life is always slow for me!

Was your original thought hinting that some people would totally avoid filesystem tests, to the detriment of testing the filesystem functionality at all?